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IQE
Annual Report 2024

IQE · LSE Technology
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Industry Semiconductors
Employees 501-1000
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FY2024 Annual Report · IQE
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Annual Report and Accounts 2024

As the world’s leading compound 
semiconductor supplier, IQE is at 
the cutting edge of innovation 
transforming our futures.

Our vision 
Enabling a brighter future through the 
power of advanced semiconductors.
Our mission 
Our products are fundamental 
in the technologies we use in 
our everyday life. As leaders in 
semiconductor materials innovation, 
we are committed to responsibly 
powering the next generation of 
technology to drive society towards 
a sustainable, Net Zero future. We 
are enabling a global technology 
revolution to create a connected, 
safe and inclusive world.
Contents
1. Strategic Report
Our business at a glance 
2
Powering innovation
4
Powering success
6
Powering the future
8
CEO statement
10
Executive Chair statement
14
Investment case
16
Business model
18
Market review
20
Our strategy
24
2024 performance review
28
Financial review
30
Stakeholder engagement
34
Responsible business
37
TCFD Report
50
Risk management
62
Viability statement
68
2. Governance Report
Board of Directors
70
Corporate Governance
72
Audit & Risk Committee Report 
76
Nominations Committee Report 
81
ESG Committee Report
82
Directors’ Remuneration Report
83
Directors’ Remuneration Policy
85
Directors’ Report 
96
Statement of Directors’ responsibilities
98
Non-Financial and Sustainability
Information Statement
99
3. Financial Statements
Auditors Report
100
Financial Statements
108
Glossary
170
Investor information 
172
Revenue 
£118m
2023: £115m
Net operating loss 
£(33)m
2023: £(26)m
Adjusted EBITDA 
£8m
2023: £4m
Adjusted net debt 
£(19)m
2023: £(2)m
Cash capital expenditure 
£11m
2023: £12m
The nature and description of alternative performance measures 
are included in Note 5 on page 135. Adjusted net debt is defined 
on page 108.
IQE Annual Report and Accounts 2024
1
Strategic Report

Who we are
Our global footprint 
+ Read more about our global success on page 6
Our business at a glance
IQE is the leading global manufacturer 
of compound semiconductor wafer 
products and advanced material 
solutions. As the only epitaxy 
provider with a global footprint, IQE 
is strategically positioned with 
operations on three continents. 
We offer our customers world-class 
technology, flexibility and supply 
security within their local geographies.
Uniquely positioned in the global value chain
What we do
IQE provides compound 
semiconductor manufacturing 
services and occupies a critical 
position in the global value chain  
– at the forefront of advanced 
semiconductor materials innovation. 
We support next-generation 
technologies and innovation by 
providing our customers with epitaxial 
wafers and substrates with the 
advanced performance 
characteristics needed to power 
tomorrow’s technology, today.
Europe
America
Asia
Employees by location
479
Number of employees 
(as at 31 December 2024)
We have a diverse workforce across three continents.
3
Countries of operation
Our unique global footprint allows IQE to offer 
localised customer service.
2
IQE Annual Report and Accounts 2024

Our growth potential
+ Read more about our strategy for growth on page 24
High-performance connectivity is essential for 
wireless communications products in today’s digital 
world. With faster speeds, lower latency, and greater 
reliability, these products enable seamless data 
transmission, enabling applications in our homes, 
workplaces and beyond, wherever efficient 
communication is crucial for innovation and the 
user experience.
The Power Electronics market is growing, driven by 
the demand for energy-efficient solutions and the 
shift to renewable energy. As electric vehicles, smart 
grids and advanced power systems are adopted, 
the need for high-performance power solutions 
increases. Materials such as Gallium Nitride (GaN), 
which is critical to IQE’s Power portfolio, are fuelling 
innovations in semiconductors and energy 
management to tackle global power-related 
challenges and support sustainability and efficiency.
Display technologies are advancing rapidly, and as 
demand for immersive visual experiences grows, 
microLEDs are set to play a key role in the future of 
displays. MicroLED displays offer superior brightness, 
colour accuracy and energy efficiency and are ideal 
for consumer electronics, automotive, and 
advertising applications,. IQE, through collaboration 
with key strategic partners, is advancing microLED 
and display technologies to deliver an enhanced 
user experience.
Growth is forecast in the global sensing market 
driven by rising demand for smart devices, Internet 
of Things and automation across industries like 
healthcare, automotive, and manufacturing. 
Advanced sensors enable real-time monitoring and 
smarter decision-making, while AI and machine 
learning provide further opportunities for market 
expansion. As industries embrace digital 
transformation, the need for connected solutions 
continues to rise, with IQE leveraging its impressive 
history in sense technologies including 3D Sensing. 
Connect
Power
Display
Sense
Strategic Report
IQE Annual Report and Accounts 2024
3

Solving tomorrow’s challenges
Powering 
innovation
IQE is addressing the technology challenges of 
tomorrow through a market-led approach
Powering innovation
4
IQE Annual Report and Accounts 2024

Aligned with industry demand,  IQE is 
focused on three strategic markets which 
offer significant growth potential.
Smart Connected Devices demand more efficient 
and powerful semiconductors to handle complex 
data processing and connectivity requirements. As 
these devices become increasingly integrated into 
everyday life, IQE’s innovation supports higher 
performance, miniaturisation and energy efficiency.
The Automotive and Industrial sectors are expanding 
rapidly as electric vehicles, autonomous driving 
technologies and power systems demand advanced 
semiconductors for better performance and safety. 
IQE’s technology is enabling high-performance 
sensing, connectivity,  power solutions and real-time 
data processing in these increasingly complex 
applications.
Artificial intelligence is driving growth across a wide 
variety of Communications Infrastructure and 
Security applications by enabling faster data 
processing and more efficient network management, 
including for data centres, fibre networks as well as 
the expansion of 5G/6G wireless infrastructure.  
In the security space, IQE is enabling advanced 
systems to support real-time threat detection and 
unlocking new sensing potential. 
 
Our growth 
markets
Smart Connected Devices
Automotive and Industrial
Communications 
Infrastructure and Security
+ Read more on page 20
IQE Annual Report and Accounts 2024
5
Strategic Report
Strategic Report

Uniquely positioned for 
supply security and 
scalability
North 
America
Washington
Massachusetts
North Carolina
Newport
Cardiff
Milton Keynes
Taiwan
Europe
Asia
+ Read more about our Strategic Review in relation to IQE Taiwan on 
page 27
Powering success
6
IQE Annual Report and Accounts 2024

Powering 
success
Offering world-class technology, flexibility 
and supply chain security
As the only pure play epitaxy provider with a global footprint, IQE remains uniquely positioned 
within the global semiconductor ecosystem. Headquartered in the UK, IQE has manufacturing 
operations on three major continents, providing our customers with broad market access, 
close proximity and global manufacturing flexibility and resilience.
Combined with our proven ability to manufacture a full breadth of materials platforms at scale, 
we are strategically placed to capitalise on the technology megatrends of the future.
+ Read more on page 16
IQE Annual Report and Accounts 2024
7
Strategic Report

Powering 
the future
Powering the future
GaN technology promises to reduce power 
consumption, increase reliability and 
enhance performance in electric vehicles 
and industrial applications, a cornerstone of 
achieving Net Zero
8
IQE Annual Report and Accounts 2024

IQE’s GaN-led diversification strategy 
in action
Gallium Nitride (GaN) remains at the forefront of 
enabling smaller, more efficient and lower cost 
power systems and it is employed across a wide 
range of applications. Within electric vehicle and 
automotive sectors, GaN is essential for 
improving charging performance and increasing 
vehicle range. It is also a critical enabler of 
advanced communications system, such as 
power supplies for data centres, thanks to its 
performance advantages over traditional 
silicon-based semiconductors. In the longer term, 
GaN will be used to enable efficient ultra-high-
resolution displays (MicroLED). 
Whilst the pace of vehicle electrification may 
have slowed, as the market rebuilds critical mass 
IQE is developing and qualifying customer power 
architectures from its established foundry 
locations. Thanks to strategic investment in GaN 
reactor capacity across our global sites in the UK 
and US, IQE is ready to respond to market 
demand for GaN.
+ Read more on page 26
“IQE is strategically 
positioned and ready to 
respond to market 
demand for GaN.”
Rodney Pelzel
Chief Technology Officer 
& Chief Operating Officer
$2.2B
GaN Power device market 
by 2029
41% 
GaN Power device market CAGR 
2023-2029
Source: Yole Group, 2024
IQE Annual Report and Accounts 2024
9
Strategic Report

Powering 
tomorrow’s 
technology, 
today
I am delighted to present IQE’s 2024 Annual Report. As 
I reflect upon my first year with the business, I am 
filled with both pride and gratitude for what the 
Company - and our teams - have accomplished in 
2024. While we encountered some unexpected 
challenges, it was also a year of opportunity and 
growth for our organisation. 
I joined IQE in January 2024 as the Company’s Chief 
Financial Officer, bringing with me many decades of 
experience working globally in senior roles in the 
semiconductor industry. I was then fortunate to also 
be appointed IQE’s Chief Executive Officer nine 
months later in October 2024. Since then, I have been 
working closely with Executive Chairman Mark Cubitt 
and the Board as we focus on improving operational 
efficiency and cost control to reshape IQE and 
position ourselves for a successful future.
As we entered 2024 there was a weight of expectations 
placed upon the rate of industry recovery following 
the global semiconductor downturn. Although we 
were beginning to see pockets of recovery, the pace 
of progress was varying between regions and market 
segments, with conditions not improving as 
favourably or as quickly as we had hoped. This was in 
large part due to weak consumer demand in end 
markets and meant we did not achieve the revenue 
growth we desired, with our year-on-year revenues 
being broadly flat. Despite this, we began to see the 
positive impacts of our careful cost management 
and I am pleased to report an improvement in our 
CEO statement
adjusted EBITDA position, which grew from £4,313,000 
in 2023 to £8,112,000 in 2024. 
With the market softness persisting throughout 2024, 
we looked to maximise the value of IQE’s asset base 
and stabilise our balance sheet. In July we 
announced plans for the IPO of our Taiwan operating 
subsidiary on the Taiwan Stock Exchange, which was 
intended to accelerate investment in our growth 
strategy. However, in November we subsequently 
announced the Board’s decision to undertake a 
Strategic Review of the Group in light of difficult 
trading conditions and the Board’s belief that there is 
significant value in IQE that is not currently reflected 
in its market capitalisation. As part of the Strategic 
Review, IQE has broadened its options in relation to 
the proposed IPO to include the possibility of a full 
sale. While the Strategic Review process remains 
ongoing at the time of writing, I am encouraged by 
the progress that has been made.
To strengthen IQE’s short-term liquidity position, in 
November we announced that the business was 
entering into subscription agreements with a 
consortium of existing investors through convertible 
loan note financing. This process, led by Lombard 
Odier - IQE’s biggest shareholder - raised aggregate 
subscription proceeds of £18 million and was finalised 
after the reporting period. Simultaneously, IQE’s 
existing financing facility with HSBC was amended 
and restated with the closing of the fundraising.
Jutta Meier 
Chief Executive Officer and Chief 
Financial Officer
“I am filled with both pride and 
gratitude for what the Company - 
and our teams - have accomplished 
in 2024.”
10
IQE Annual Report and Accounts 2024

Operational performance
The business achieved good progress against our 
defend and diversify strategy in 2024. Our 
connectivity-related products saw growth driven by 
demand for communications infrastructure products, 
penetration into the Android smartphone and WiFi 
market, and increased demand in the Aerospace and 
Security sector. 
It has been a busy time within our Photonics portfolio, 
with Generative AI driving demand across our new 
and legacy photonics product portfolio, particularly 
for next-generation data centres. We successfully 
qualified Quantum Dot Laser products for an 
industry-leading Silicon Photonics customer for use in 
next-generation networking applications. Our 
announcement of a strengthened partnership with 
pioneering Quantum Dot Laser (QDL) technology 
company Quintessent Inc., to establish the world's first 
large-scale QDL supply chain highlights increasing 
momentum in this emerging market. The business 
also delivered advanced, higher performance VCSEL 
products for qualification in new mobile platforms 
which include AR/VR with high-resolution depth and 
image recognition capabilities. 
Throughout 2024, we continued to deploy GaN Power 
capacity in the US and UK to serve the global Power 
Electronics market. We saw successful customer 
demonstration of 650V e/d-mode GaN products for 
Tier 1 OEMs and received our first commercial orders 
for 650v automotive qualifications. With tools 
qualified and partnerships secured, IQE is positioned 
to deliver on forthcoming GaN opportunities as the 
market transitions into high-volume manufacturing. 
We also expanded our capacity to serve the growing 
demand for MicroLED development for next-
generation, high-resolution display markets. This was 
supported by a new 8" GaAs and GaN RGB microLED 
product portfolio announced during the year, with 
strong engagement from Tier 1 consumer mobile and 
display manufacturers. This included our continued 
partnership with a leading smart glasses developer in 
the field of GaN MicroLED displays. 
Financial performance
Our full year revenue of £118,034,000 
(2023: £115,252,000) increased 2.4% from 2023. 
Wireless revenues, related to our connectivity-
related products, increased 24.9% to £67,295,000 
(2023: £53,877,000), reflecting an increase in wireless 
GaAs sales linked to a higher penetration of Asian 
“The Board believes there is 
significant value in IQE that 
is not currently reflected in 
its market capitalisation.”
markets and an increase in GaN sales for RF 
applications. Photonics revenues, tied to our 
advanced sensing portfolio, decreased 15.6% to 
£49,876,000 (2023: £59,098,000) primarily because 
of softness in the 3D Sensing and telecoms 
infrastructure markets, partially offset by strong 
performance in Aerospace and Security markets 
for infrared-related products.
CMOS++ revenue of £863,000 (2023: £2,277,000) 
declined 62.1%, reflecting a strategic rebalancing of 
the business' product portfolio and a shift in focus 
towards diversification into GaN Power and MicroLED. 
Starting in 2025, the Group will no longer report 
CMOS++ revenue as a standalone segment.
The Group reported an operating loss of £32,958,000 
(2023: £25,779,000) which was impacted by certain 
non-cash asset impairments primarily relating to our 
Wireless business. However, we achieved an 
improved adjusted EBITDA position through careful 
cost management in year, in tandem with actions 
taken in prior years. A positive EBITDA impact was 
seen from the closure of our Pennsylvania site and 
the consolidation of our US MBE business into North 
Carolina. We also made the difficult decision to 
restructure our management teams and reduce our 
headcount by 10% in 2024, mainly focused within our 
UK and US epiwafer sites.
ESG progress
IQE made important progress towards our ESG goals 
in 2024. During the year we successfully attained 
approval of our science-based targets to reduce 
greenhouse gas emissions in line with the SBTi Net 
Zero Standard, which seeks to limit global warming to 
1.5°C. The SBTi’s Target Validation Team has classified 
IQE’s near and long-term targets as in line with this 
ambition and has verified IQE’s mitigation pathways 
for reaching Net Zero by 2050 or sooner. We achieved 
the most ambitious designation available through 
the SBTi process and I am proud of our work towards 
achieving meaningful global greenhouse 
emissions cuts.
Strategic Report
IQE Annual Report and Accounts 2024
11

CEO statement continued
Outlook
In my first year with IQE, I have seen first hand how our 
team unites to navigate uncertainty with steadfast 
commitment. While the future of the Company 
presents a variety of potential pathways, I remain 
highly optimistic about what lies ahead. With our 
short-term financing secured through the successful 
completion of the CLN, and meaningful progress 
towards the sale or IPO of IQE Taiwan, we are 
establishing a solid financial foundation for a robust 
and sustainable business. 
I, together with the Board, believe there is a significant 
market opportunity in IQE's core operations, and we 
remain focused on reducing our cost structure for 
profitable growth, servicing our customers and 
maximising value for shareholders. We intend to 
provide further updates and a refreshed strategy 
later in the year. 
We also have a strong customer pipeline in front of 
us, which has never been more diverse. While the 
industry remains in recovery, we are seeing strong 
demand for data and optical communications 
products, next-generation displays and advanced 
sensing for aerospace and defence applications. 
This is offsetting continuing softness in some larger 
markets, such as the consumer mobile segment. 
The strong engagements we are seeing in 2025 are 
anticipated to provide significant growth 
opportunities in 2026 and beyond. 
I firmly believe that compound semiconductors, and 
by extension IQE as leaders in the industry, will play an 
important role in shaping the connected, immersive, 
and low carbon world of tomorrow. The business has 
made great strides this year and I am confident we 
are laying the foundations for a new chapter in IQE’s 
history that we can all be proud of.   
Jutta Meier 
Chief Executive Officer and Chief Financial Officer
12 May 2025
Revenue
£118m
2023: £115m
Operating loss
£(33)m
2023: £(26)m
Adjusted EBITDA
£8m
2023: £4m
The shape of our year 
12
IQE Annual Report and Accounts 2024

CONTENT TBU
IQE Annual Report and Accounts 2024
13
Strategic Report

Unlocking 
the potential 
of IQE
I am pleased to be able to introduce my first Annual 
Report as Executive Chair of IQE. Since joining the 
business in October 2024 and stepping into the 
Executive role shortly after, my first few months have 
been spent getting to know IQE thoroughly and 
meeting our dedicated global team. 
Reflecting on 2024, it presented its fair share of both 
challenges and opportunities for IQE, which tested our 
resilience and agility. However, we also made 
important strides to strengthen our operations and 
position ourselves for future growth. Thanks to this 
progress, we have a strengthened balance sheet, 
streamlined management team and a reaffirmed 
commitment to delivering value for our customers 
and stakeholders, while progressing against our 
longer-term strategy.
Trading performance
IQE’s 2024 trading performance was reflective of 
ongoing softness within the industry and a slower 
than anticipated recovery from the market downturn 
in certain business segments. Our revenue 
performance was broadly flat year-on-year, and 
despite reporting an operating loss we demonstrated 
an improved adjusted EBITDA as result of the cost 
mitigation actions taken in year and earlier, reflecting 
our focused cost control and improved operational 
performance.
As part of our decisive action to manage costs, we 
made the difficult decision to further reduce 
headcount and restructure our executive team. We 
also completed convertible loan note financing of 
Executive Chair statement 
£18m after the reporting period to strengthen our 
near-term financial position.
Board matters
I was pleased to join IQE’s Board in October 2024 as a 
Non-Executive Director. Following the departure of 
CEO Americo Lemos later that month, I took up the 
role of Executive Chair, with Jutta Meier being named 
CEO in addition to her CFO role. Jutta originally joined 
the business in January 2024, bringing a wealth of 
experience from the global semiconductor industry 
which we continue to benefit from.
Since then, we have been working closely together 
and our strong focus is on cash generation and 
management across the Group, and on unlocking 
embedded value through our Strategic Review and 
the optimisation of our asset base. 
2024 also saw the departure of Drew Nelson and Phil 
Smith from IQE’s Board. Since he co-founded the 
business in 1988, Drew has been instrumental to the 
business’ growth from start-up to a global innovator 
and leader in the sector. He departed IQE’s Board in 
June 2024 and remains a key figure in the 
semiconductor industry through his work with the 
South Wales Compound Semiconductor cluster, 
where we continue to work closely with him.
Phil completed his Board tenure in December 2024 
after serving on IQE’s Board for nearly nine years, 
including five years as Chair. I wish him the best and 
thank him for his contributions and support during 
the transition period. 
Mark Cubitt 
Executive Chair
“We have a strengthened balance 
sheet, streamlined management 
team and a reaffirmed commitment 
to delivering value for our customers 
and stakeholders.”
14
IQE Annual Report and Accounts 2024

Looking ahead
While there is still much work for us ahead, I am 
encouraged by the dedication of our teams and the 
progress that we have made in 2024 to strengthen 
our foundations for the future and adapt to the 
evolving macro environment.  
While the pace of recovery following the industry 
downturn remains patchy, we welcome the gradual 
stabilisation of supply chains and customer demand 
across our product portfolio. 
Our market-led technology approach will allow us to 
capture opportunities in exciting new areas, and in 
2025 we will look to build on our successful 
development and customer engagement in key 
markets such as GaN for Power Electronics and 
MicroLED. We will also look to capitalise on AI-driven 
demand in the communications infrastructure 
market, particularly for data centres, AR/VR and 
mobile platforms. 
“The sale or IPO of IQE 
Taiwan will pave the way 
to unlock the incredible 
potential of the IQE Group 
by ensuring we have 
a strong capital base 
to continue investing 
in our core business 
and supporting our  
longer-term strategy.”
I am confident that our Strategic Review and the sale 
or IPO of IQE Taiwan will pave the way to unlock the 
huge potential of the IQE Group by ensuring we have 
a strong capital base to continue investing in our 
core business and supporting our longer-term 
strategy.
Moving forward, we are committed to building a 
stronger IQE with a clear focus on innovation, 
operational efficiency, cost control and sustainable 
growth. I have full confidence in our team's ability to 
navigate the challenges and opportunities ahead, 
united by a common purpose to create a more 
connected and sustainable future for everyone.
Mark Cubitt
Executive Chair 
12 May 2025
Strategic 
Review
In July 2024, IQE announced plans for an 
initial public offering (IPO) of the Group’s 
Taiwanese operating subsidiary, IQE 
Taiwan, on the Taiwan Stock Exchange, 
with the proceeds of the IPO intended to 
be utilised across the Group to fund the 
growth strategy. However, in November the 
Board decided to undertake a 
comprehensive Strategic Review of the 
entirety of IQE’s asset base to ensure a 
strong capital position from which to fund 
investment into core operations. The Board 
feels there is significant value in IQE which 
is not currently reflected in its market 
capitalisation, and the Board’s priority is 
reducing the Company’s cost structure for 
profitable growth, servicing its customers 
and maximising value for shareholders.
At the time of publication, the Strategic 
Review remains ongoing. As part of the 
review, IQE broadened its options in 
relation to the proposed IPO to include the 
possibility of a full sale of IQE Taiwan. The 
Board has retained Lazard to advise on the 
Strategic Review and it is being overseen 
by the Board with input from key 
stakeholders.
The Board is encouraged by the positive 
levels of interest in the process to date. The 
completion of the Strategic Review and 
potential sale or IPO of IQE Taiwan is a 
significant opportunity which will allow the 
Group to unlock significant unrealised 
value within the business, strengthen the 
balance sheet and ensure it is able to 
invest in its long-term growth opportunity.
+ Read more  about strategy on page 24
Strategic Report
IQE Annual Report and Accounts 2024
15

Investment case
Powering tomorrow’s 
technology, today
Only global pure play 
epitaxy supplier 
We are strategically positioned with the 
industry’s most comprehensive product 
portfolio and a unique presence across 
three continents. This enables us to provide 
our customers with unmatched flexibility, 
scalability and supply security to deliver 
the world’s most advanced compound 
semiconductor products.
1
Expansion capacity  
and scalability 
In a market with high barriers to entry, 
we have a significant first mover advantage 
to scale our operations to meet future 
demand. We have the ability to expand in all 
geographies within our current site footprint.
Market-led approach
We collaborate with our customers to develop 
unique solutions to tackle market challenges, 
leveraging our scalable materials platforms.
3
2
16
IQE Annual Report and Accounts 2024

Unmatched expertise
With more than thirty years of epitaxy 
expertise , IQE has a proven history of 
developing cutting-edge technology 
underpinned by an unparalleled 
intellectual property portfolio.
5
Foundational technology 
Compound semiconductors are crucial for 
powering an intelligently connected, immersive, 
and low-carbon world, thanks to their 
exceptional performance and efficiency.
4
Delivering value
We are dedicated to evolving 
our business to prioritise sustainable 
growth for the benefit of all our 
stakeholders, including customers, 
partners, employees, and shareholders.
6
IQE is the world’s leading compound semiconductor manufacturer, operating 
at the forefront of materials innovation. We are solving the challenges of the 
future by powering tomorrow’s technology, today.
IQE Annual Report and Accounts 2024
17
Strategic Report

Business model
Creating value through a 
resilient business model
As the only pure play epitaxy provider with a global 
footprint, IQE remains uniquely positioned within the 
global semiconductor ecosystem.
Research & development
A programme of innovation that 
drives leading edge technologies, 
working in partnership with the world’s 
major technological supply chains.
Customer qualification
Exacting quality standards, world-
leading IP and process know-how 
enables broad product qualification 
with leading international customers.
Product portfolio
A comprehensive Connect, Sense, 
Power and Display product offering 
enables our customers to deliver 
world-leading products.
Manufacturing capacity at scale
Investment in the state-of-the-
art infrastructure of our global 
manufacturing footprint has created 
the scale required to capitalise 
on the growing compound 
semiconductor market.
What we do
How we do it
Our purpose
IQE manufactures the world’s most advanced compound semiconductor epitaxial wafers that are the 
foundation materials for Connect, Sense, Power and Display devices. We enable our customers through rapid 
innovation, superior quality and manufacturing scale.
Market intelligence
Unrivalled market understanding 
underpinned by a 30+ year 
pedigree and long-standing 
customer relationships.
Epitaxy is where the value is created
Substrates  
Base materials
Foundries 
Device fabrication
Device makers 
Device manufacture
Fabless 
Design
Epilayers  
are deposited  
on a substrate
IQE IP
Reactor
Driven by:
18
IQE Annual Report and Accounts 2024

Our key relationships and resources
Delivering value for
Technology 
Roadmap
+ Read more on page 20
Operational 
Excellence
+ Read more on page 34
Sound  
governance and 
risk management
+ Read more on page 62
Responsible 
business 
operations
+ Read more on page 37
Our people
+ Read more on page 40
Long-standing partnerships with customers
IQE is a materials solutions provider, enabling 
advanced technologies throughout major global 
supply chains. We work with customers up and down 
the value chain.
Technically experienced and highly-skilled 
people
IQE attracts and develops the top talent in the 
compound semiconductor industry, and is therefore 
able to offer a wealth of technical expertise across 
our product portfolio.
Strategically positioned intellectual property 
portfolio
With a focused patent portfolio and unparalleled 
process IP, IQE has an established, protected position 
in its markets.
Widely recognised technology leadership
As a materials specialist with a commitment to 
innovation, IQE is at the forefront of new technology 
and has a track record of enabling major technological 
product trends, from R&D to mass production.
Global manufacturing footprint
Headquartered in the UK with manufacturing operations 
strategically positioned around the globe, IQE has 
worldwide market access and close customer 
proximity, providing resilient, flexible supply security 
for customers.
Uncompromising quality standards
Superior quality is embedded in IQE’s manufacturing 
processes to ensure that our products drive superior 
yields and unit economics for our customers.
Customers
Employees
Investors
Communities
Environment
£2m
Technology-related development expenditure
2023: £3m
4,804
Hours of learning completed in 2024
2023: 1,528
£11m
Cash capital expenditure investment in 2024
2023: £12m
1 day
Annual paid employee volunteering leave entitlement
2023: 1 day
16,229 tCO2e
Total GHG emissions
2023: 19,603 tCO2e
Underpinned by:
IQE Annual Report and Accounts 2024
19
Strategic Report

Building the future
Market review
IQE is at the forefront of the megatrends shaping the future. In a rapidly 
changing world, IQE’s diverse portfolio of products serves a broad range of 
customers in multiple markets, providing customers with flexibility, opportunity 
and supply resilience. Together we are building the energy efficient 
infrastructure of the future, focusing on products which enable Artificial 
Intelligence (AI), optical communications, advanced sensing and next-
generation displays.
20
IQE Annual Report and Accounts 2024

	*
Source: Yole Group, 2024-2025 
Communications  
Infrastructure and Security
5G/6G
Intelligent sensing
5G networks play a crucial role in supporting and 
driving the adoption of AI.  High-speed, low-latency 
networks are necessary to handle data-intensive 
AI workloads. Sixth generation cellular networks will 
enable ever present connectivity, providing the 
bandwidth necessary to enable the Metaverse.
Multi-spectral imaging is delivering innovations in 
sensing.  Being able to see further, in higher 
resolution and in full colour across the entire 
infrared spectrum, is expanding use cases beyond 
serving single missions.
How IQE is responding
IQE’s communications infrastructure product 
portfolio serves customers at all network nodes. 
Our GaN on SiC technology powers a new 
generation of high-capacity 5G base stations, 
delivering superior output power and energy 
efficiency over incumbent radio frequency 
solutions.  
The optical backbone which connects wireless 
networks is built on a metro and long-haul fibre, 
and IQE provides a range of signal laser and 
detector material solutions for data-centric 
infrastructure transmitting over all Photonics 
networks.
6G will be revolutionary, with unprecedented 
requirements in data transmission, latency and 
coverage. IQE’s broad RF materials portfolio (GaN, 
InP and GaAs) enables us to serve customer 
development platforms which are architecting 
new 6G wireless networks.
How IQE is responding
IQE’s industry leadership in antimonide infrared 
materials has continued to expand, with the 
development of ‘full colour’ GaSb-based sensing 
technologies which are enabling our customers to 
expand not only their imaging reach, but also use 
cases including AI-driven autonomous platforms.  
Complementing our detector technologies are 
intelligent mid-infrared lasers which can be tuned 
to detect industrial and security hazards. We 
expect sensing to become ever more prevalent as 
use cases expand, with our intelligent sensing 
product portfolio already enabling new 
applications in consumer sensing.
.
$909m
RF GaN Telecom and Infrastructure Device Market 
by 2029* 
$1.5bn
Market size for advanced high-resolution Infrared 
image sensors by 2030*
Strategic Report
IQE Annual Report and Accounts 2024
21

Smart Connected Devices
Augmented/Virtual 
Reality 
MicroLED displays
Healthcare wearables
An immersive user experience 
across a vast array of use 
cases is made possible by IQE’s 
Photonics technologies. 3D 
Sensing lasers powered by our 
epitaxy are enabling new levels 
of information and interactivity 
to be unlocked.  
Energy efficient, high-resolution 
and flexible displays built 
exclusively from compound 
semiconductor-based 
microLEDs are transforming the 
display industry, and remains 
an active area of development 
for IQE.
A new era of digital healthcare 
will be enabled by compound 
semiconductor devices that 
can detect biomarkers with 
clinical accuracy to unlock 
health insights live. These 
sensors will be minaturised and 
integrated into mobile 
consumer platforms.
How IQE is responding
Building on our pioneering work 
in 3D Sensing, IQE has 
developed a new generation of 
higher performance VCSELs 
which deliver higher resolution 
capabilities and enable 
advanced applications.
IQE is working with global 
leaders to provide the most 
advanced VCSELs for AR/VR 
applications and IQE’s material 
is contained in current market 
leading AR/VR products, as well 
as in future development 
roadmaps. This technology 
development also extends to 
spatial computing and smart 
glass platforms, enabling the 
next wave of mobile device 
innovation.
How IQE is responding
IQE is partnering with industry 
leaders to qualify microLED 
technology for use in smart 
glass and watch platforms.  We 
also have contracted R&D 
programmes delivering RGB 
epitaxy into display OEMs,  
enabled by IQE’s breadth of 
GaAs (red) and GaN (blue and 
green) materials technology. 
IQE is also engaged in scaling 
microLED technologies and our 
leadership in GaN-on-Si has 
enabled us to deliver product 
into OEMs developing mass 
market solutions for consumer 
displays.
How IQE is responding
IQE has long-standing 
relationships with and remains 
engaged with market leading 
OEMs to develop advanced 
healthcare wearables. 
We offer our customers a wide 
portfolio of materials and 
wavelength solutions and 30+ 
years of engineering pedigree. 
Consistent, customer-funded 
R&D activity is ongoing, with 
steady progress being made 
towards enabling our 
customers to develop 
biomarker sensors which will 
revolutionise how we track and 
manage our health.  
$1bn
GaAs VCSEL Mobile & Consumer 
Die Market Demand by 2029*
$996m
MicroLED Total Panel Revenue  
by 2029*
$100m
InP Consumer Wearable Sensing 
Die Market Demand by 2029*
Market review continued
	*
Source: Yole Group, 2024-2025 
22
IQE Annual Report and Accounts 2024

Automotive and Industrial
Electric vehicles
Industrial power
Data communications
Vehicle electrification remains a 
significant growth opportunity 
within the GaN market, 
specifically for onboard 
charging modules. Critical 
mass will build as energy 
efficiency and EV expansion 
drive the enhanced adoption of 
GaN technology.
The growth of data centres 
fuelled by AI has created a 
significant growth opportunity 
for Power GaN as it elevates the 
performance and economic 
returns of data centres by 
reducing size, system costs and 
increasing power efficiency. As 
such, it is the ideal solution for 
the improvements required to 
concurrently meet AI demands 
and Net Zero initiatives.
Rapid growth in AI data traffic 
demands high performance 
interconnectivity between 
datacentre, clouds and wide-
area networks. Ultrafast 
transceiver lasers and 
detectors move data around 
optical networks and the need 
for energy efficiency is driving 
the development of a new 
generation of communication 
laser solutions.
How IQE is responding
IQE has successfully completed 
its GaN fleet expansion, 
qualifying its final two new 
reactors in 2024 at its Newport 
site. IQE now has capacity to 
service worldwide GaN Power 
development at sites in both 
the US and UK. 
IQE has partnered with market-
leading customers to 
successfully demonstrate 650 V 
Automotive GaN Transistor 
technology. Current activity is 
focused on qualifying this 
technology for full product 
release, which will enable 
access to a broad range of 
high-efficiency, power 
switching platforms.
How IQE is responding
Our position in the development 
of GaN Power technology for 
automotive markets provides a 
foothold within this emerging 
market and as such, IQE is 
ideally positioned to address 
this need with its newly added 
capacity.
IQE is engaged with multiple 
industrial partners who are 
exploring our GaN transistor 
technology and developing 
industrial power supplies for 
markets which include data 
centres, 5G wireless access and 
wireless power applications.
How IQE is responding
IQE’s optical communication 
portfolio delivers into all network 
nodes; GaAs VCSELs and InP 
lasers drive data around the 
datacentre fabric. We have also 
launched a new technology for 
this market, Quantum Dot 
Lasers (QDLs), which deliver 
substantial performance 
advantages over incumbent 
technologies, boosting 
bandwidth, reducing latency 
and improving efficiency, 
enabling highly parallel dense 
optical links for computing 
clusters and data centres.
$336m
Automotive & Mobility Power GaN 
Device Market by 2029*
$66m
Industrial Power GaN Device 
Market by 2029*
$1.85bn
InP Datacom Die Market Demand 
by 2029*
	*
Source: Yole Group, 2024-2025 
Strategic Report
IQE Annual Report and Accounts 2024
23

Our strategy
Strategic progress
 Connect
Description
IQE has a well-established, market-leading product portfolio for Connect applications:
•	 GaAs-based HBT, BiFET, BiHEMT, and PHEMT epiwafers for mobile handset front-end modules
•	 GaN/SiC and GaN/Si RF epiwafers for base station applications
•	 GaAs and InP-based lasers and detector epiwafers for data/telecom transceivers
2024 focus:
•	 Retain market share for commoditised handset parts
•	 Grow front-end module market share within Asian supply chains
•	 Develop GaN/Si & SiC for RF infrastructure
•	 Develop GaAs-based quantum dot (QD) technology for data com lasers
Progress in 2024
•	 Strong qualification and sampling engagement with Asian front-end module customers 
•	 Continued partnership with a leading US-based foundry on the development of GaN on Si for RF 
applications
•	 Good execution on production orders for GaN on SiC RF products 
•	 Strong engagement with InP-based datacom partners to service the resurging market and 
develop next-generation technology
•	 Release of a quantum dot reference technology and secured contract revenue
2025 objectives
•	 Complete GaAs front-end module qualifications; pilot production expected to commence in 2025
•	 Leverage historic strength for GaN on SiC for RF to capture additional market share, particularly in 
the UK and Europe
•	 Service re-emerging InP datacom market and qualify with customers for new AI applications
•	 Secure additional contract revenue for quantum dot products
Maintain and grow IQE’s position
IQE’s strategy is focused on maintaining share in existing markets while 
diversifying into new growth areas. By collaborating with technology leaders 
we will achieve sustainable growth in order to capture value. 
24
IQE Annual Report and Accounts 2024

 Sense
Description
IQE is a long-standing leader for two critical sense applications:
•	 GaAs-based VCSELs for 3D facial recognition systems in mobile handsets 
•	 GaSb-based detectors for military applications
2024 focus:
•	 Retain market share for released 3D Sensing products
•	 Maximise revenue capture for GaSb-products through operational excellence and execution 
against a strong order book 
•	 Grow GaSb market share by developing and qualifying next-generation products
Progress in 2024
•	 Successfully serviced and retained GaAs VCSEL customers
•	 Excellent operational performance for MBE-based GaSb products underpinning significant 
year-on-year revenue growth 
•	 Good progress and strong customer engagement on GaSb development for next-generation 
designs
2025 objectives
•	 Customers and market share focus within the 3D Sensing market 
•	 Continue to grow the GaSb MBE business capitalising on increasing defence-based demand
IQE Annual Report and Accounts 2024
25
Strategic Report

Our strategy continued
Diversify
 Power
Description 
IQE is creating capability and capacity to serve the power market for automotive and industrial 
applications with significant market growth anticipated due to global Net Zero initiatives.
2024 focus
•	 Install and run-up additional GaN capacity at sites in both the US and UK to create a secure, 
global GaN footprint
•	 Develop a market-leading 200 mm 650 V e/d mode capability
Progress in 2024
•	 Successfully installed and ran-up two new reactors at the Newport site 
•	 Completed the internal qualification of two new reactors at the Massachusetts site and began 
servicing customer orders
•	 Significant progress made on GaN power product development; demonstrated 650 V breakdown 
with excellent wafer flatness and defectivity
•	 Sampled multiple power customers to qualify for 650 V applications
2025 objectives
•	 Fully qualify a reference 650 V e/d technology 
•	 Qualify with multiple Tier 1 GaN/Si power customers/foundries
•	 Develop technology for higher and lower voltage nodes
26
IQE Annual Report and Accounts 2024

 Display
Description
Small form factor, ultra-high resolution, highly efficient displays for AR/VR applications and 
wearable/mobile devices will ultimately require the use of red, green, and blue (RGB) microLEDs. IQE 
is developing leading edge technology to intersect with this significant market opportunity. Green 
and blue technology development leverages IQE’s established GaN on Si expertise. For red, IQE has a 
dual path, developing a GaAs/Ge-based technology for initial adoption and GaN on Si for 
subsequent generations.
2024 focus
•	 Develop baseline blue and green GaN on Si technology
•	 Demonstrate GaAs/Ge-based red technology 
•	 Capture development revenue through close partnership with market leaders
Progress in 2024
•	 Rapidly developed a baseline blue and green GaN on Si capability that has resulted in strong Tier 1 
customer engagements
•	 Demonstrated a viable red technology on GaAs resulting in requests for qualification samples by 
multiple customers and partners
•	 Captured customer NRE revenue to offset internal development costs
2025 objectives
•	 Continue RGB development to demonstrate state of the art performance
•	 Secure additional NRE arrangements to monetise R&D activity
In July 2024, IQE announced the planned initial public offering (‘IPO’) of the Group’s Taiwanese 
operating subsidiary (‘IQE Taiwan’) on the Taiwan Stock Exchange. This was followed by a further 
announcement in November 2024 that the Group will be conducting a comprehensive Strategic 
Review of its asset base to ensure a strong capital position to further invest in core operations.
The Strategic Review has allowed IQE to broaden its options in relation to the proposed IPO to include 
all strategic options, including a full sale. The Board believes there is a significant market opportunity in 
IQE's core operations and remains focused on reducing its cost structure for profitable growth, 
servicing its customers and maximising value for shareholders. 
At the time of publication, the Strategic Review process remains ongoing and further updates will be 
provided to the market when appropriate. 
Strategic Review
+ Read more about our Strategic Review in the Executive Chair’s statement on page 14
IQE Annual Report and Accounts 2024
27
Strategic Report

Key performance indicators
Financial highlights
2024 performance 
review
Operating loss
(£’m)
Adjusted operating 
profit/(loss)*
(£’m)
Property, plant and 
equipment cash 
expenditure 
(£’m)
2023
2020
2021
2022
2024
15
5
9
12
11
2023
2020
2021
2022
2024
(20)
(6)
(73)
(26)
(33)
2023
2020
2021
2022
2024
(6)
5
(4)
(20)
(18)
Revenue
(£’m)
Adjusted EBITDA*
(£’m)
2023
2020
2021
2022
2024
154
178
167
115
118
2023
2020
2021
2022
2024
23
19
30
4
8
2023
2020
2021
2022
2024
(6)
2
(15)
(2)
(19)
Adjusted net  
cash/(debt)**
(£’m)
	*
The nature and description of alternative performance measures are included in Note 5 on pages 135 to 138.
*	
*
Adjusted net debt is defined on page 108.
**	
*
The nature of adjusted diluted EPS is referenced in Note 12 on page 143.
28
IQE Annual Report and Accounts 2024

Diluted EPS
(£’p)
Total GHG emissions
(tCO2e)
Total online learning 
hours
	*
Read more in our Responsible business section from page 37.
2022
2023 2024
22,180
19,603
16,229
2022
2023 2024
4,804
1,528
2,064
2023
2020
2021
2022
2024
(3.87)
(0.41)
(9.27)
(3.96)
(3.28)
Non-financial highlights
2022
2023 2024
3,669
5,305
2,939
Gender diversity
Group level*
Safety course 
completions
2023
2020
2021
2022
2024
0.29
(2.41)
(0.74)
(2.68)
(2.46)
17%
17%
Female
Male
2022
2024
83%
83%
2023
82%
18%
Adjusted diluted EPS
(£’p)***
Our success is dependent upon our financial 
performance and also operating in a manner 
which promotes wellbeing for our employees 
and the communities in which we operate. 
Strategic Report
IQE Annual Report and Accounts 2024
29

Financial review
The Group reports financial performance in 
accordance with International accounting standards 
in conformity with UK adopted international 
accounting standards (‘UK adopted IFRS’) and 
provides disclosure of additional alternative non-IFRS 
GAAP performance measures to provide further 
understanding of financial performance. Details of 
the alternative performance measures used by the 
Group including a reconciliation to reported UK 
adopted IFRS GAAP performance measures are set 
out in Note 5 to the financial statements.
Review of Year
The Group’s trading performance in 2024 remained 
subdued as the Group continues to experience weak 
customer demand and low customer orders 
following the global semiconductor industry 
downturn. Market recovery has been slower than 
anticipated in key sectors, driven primarily by weak 
consumer demand in end markets. The continuation 
of weak customer demand, resulting in revenue that 
has remained broadly flat year-on-year at 
£118,034,000 (2023: £115,252,000) has presented a 
significant challenge to the business, with the Group 
reporting an operating loss of £32,958,000 
(2023: £25,779,000).
The Group’s trading performance, combined with a 
slower than anticipated recovery in key market 
sectors has prompted the Directors to initiate a 
Strategic Review and take immediate actions to 
secure  short-term financing to strengthen the 
Group’s liquidity.
Financial 
review
Short-term liquidity and funding actions include the 
formal waiver obtained pre-year end from HSBC Bank 
plc of the 31 December 2024 financial covenant tests 
applicable to the Group’s £28,000,000 multi-currency 
revolving credit facility (‘RCF’), the successful 
negotiation of a Deed of Amendment and 
Restatement to the RCF on 10 March 2025 to amend 
applicable financial covenants and, the successful 
£18,000,000 convertible loan note fund raise 
completed on 10 March 2025, to provide the Group 
with additional short-term liquidity whilst the Directors 
complete their Strategic Review.
The Directors, as part of the Strategic Review, plan to 
raise sufficient cash from the divestment of Group 
assets to repay the Group’s RCF and the convertible 
loan notes and ensure that the Group has a strong 
capital position to further invest in its core operations. 
In the first instance, this plan includes divestment 
options for an IPO or sale of the Group’s Taiwan 
operations and a comprehensive strategic review of 
all other Group assets and operations
Group revenue of £118,034,000 (2023: £115,252,000) has 
remained depressed increasing 2.4% from 2023 with 
the Group’s wireless business segment representing 
the largest proportion of Group revenue at 57.0% 
(2023: 46.7%) of total revenue with Photonics 
representing 42.3% (2023: 51.3%) and CMOS++ 
representing 0.7% (2023: 2.0%).
Wireless wafer revenues increased 24.9% to 
£67,295,000 (2023: £53,877,000), reflecting an increase 
in wireless GaAs epi-wafer sales linked to higher 
Jutta Meier
Chief Executive Officer & Chief  
Financial Officer
“The Group’s trading performance in 
2024 remained subdued...following 
the global semiconductor industry 
downturn. Market recovery has been 
slower than anticipated in key 
sectors, driven primarily by weak 
consumer demand in end markets.”
30
IQE Annual Report and Accounts 2024

penetration of Asian markets and an increase in GaN 
epi-wafer sales for 5G infrastructure. Photonics wafer 
revenues decreased 15.6% to £49,876,000 
(2023: £59,098,000). The decrease in photonics wafer 
revenues primarily reflects the softness in 3D sensing 
and telecoms infrastructure markets partially offset 
by strong performance in aerospace and security 
markets for infrared related products.
Statutory gross profit increased from £2,328,000 to 
£4,446,000. The increase in gross profit reflects a 
combination of the increase in sales, the annualised 
impact of cost mitigations actions implemented in 
2023, and the impact of cost control actions 
implemented during the current year.
Selling, general and administrative (‘SG&A’) expenses 
have decreased 7.7% in the year from £32,486,000 to 
£29,982,000, excluding the separately disclosed 
impairment losses on intangible assets of £3,772,000 
(2023: £nil) and on property, plant and equipment 
and right of use assets of £4,646,000 (2023: £nil). 
Intangible and tangible asset impairment relates to a 
combination of asset impairments linked to the 
Group’s US related wireless assets, the discontinued 
development and commercialisation of the Group’s 
Dilute Nitride technology and the impairment of 
certain property, plant and equipment related to the 
restructuring of the Group’s US manufacturing 
operations. Adjusted SG&A expenses, which exclude 
adjustments for share-based payments, Chief 
Executive Officer recruitment costs, Chief Executive 
Officer severance and restructuring costs have 
decreased from £26,167,000 to £24,109,000 (7.9%), 
primarily reflecting a combination of the annualised 
impact of labour cost and discretionary expenditure 
savings implemented in 2023 and the impact of 
additional actions to continue to mitigate cost during 
the current year.
Cost rationalisation actions include a combination of 
the optimisation of manufacturing asset utilisation, 
including idling reactors to reduce cost and align 
capacity with lower customer volumes, consolidation 
of the Group’s US molecular beam epitaxy (‘MBE’) 
manufacturing capacity, including closure of the 
Group’s manufacturing facility in Pennsylvania and 
the strategic re-positioning of the Massachusetts and 
North Carolina manufacturing sites, commencement 
of the consolidation of the Group’s South Wales 
activities into its Newport manufacturing site, 
restructuring of the Executive Leadership Team 
following departure of the Chief Executive Officer and 
the implementation of a range of cost control 
measures in areas including travel, marketing, legal 
and professional. 
As part of the cost rationalisation and global footprint 
optimisation plan, restructuring costs totalling 
£7,638,000 (2023: £4,680,000) have been incurred 
relating to a combination of employee redundancy 
and severance costs of £974,000 (2023:  £3,079,000), 
site decommissioning costs of £1,912,000 
(2023: £1,601,000), Taiwanese site divesture and 
Singapore site closure costs of £136,000 (2023: £nil) 
and non-cash intangible development cost and 
tangible property, plant and equipment asset 
impairments of £5,352,000 (2023: £nil), partially offset 
by a profit on sale of assets of £735,000 (2023:  £nil) 
which includes the sale of the Group’s former 
Pennsylvania manufacturing site for £4,061,000 
(2023: £nil). Other significant infrequent costs incurred 
in the year relate to the new starter bonus, payable 
over three years, for the former Chief Executive Officer 
and severance costs following the departure of the 
former Chief Executive Officer on 29 October 2024.
A reported operating loss of £32,958,000 has been 
incurred (2023: £25,779,000) with the 2024 operating 
loss impacted by non-cash asset impairments of 
£8,418,000. An adjusted operating loss of £18,357,000 
in 2024 compares to an adjusted operating loss of 
£20,199,000 in 2023. The decrease in the adjusted 
operating loss reflects a combination of the increase 
in sales and the impact of cost mitigation actions 
implemented in 2023 and 2024. The segmental 
analysis in Note 4 sets out the operating and adjusted 
operating profits attributable to the wireless segment, 
operating and adjusted operating losses attributable 
to the photonics and CMOSS segments and the 
associated adjusted operating margins for each 
segment (before central corporate support costs). 
Wireless adjusted operating margins increased from 
8.6% in 2023 to 9.7% in 2024, primarily reflecting a 
combination of an increase in manufacturing asset 
utilisation, particularly at the Group’s Taiwanese 
manufacturing site and the positive cost impact of 
the completion of the consolidation of the Group’s US 
molecular beam epitaxy (‘MBE’) manufacturing 
capacity into the North Carolina site. Photonics 
adjusted operating margins remained negative at 
21.2%, decreasing from negative 16.9% in 2023 as the 
market recovery in certain photonics market 
segments has remained depressed with the Group 
continuing to suffer from significant under-utilisation 
of capacity at its South Wales sites. 
Finance costs of £3,947,000 (2023: £3,032,000) reflect 
£2,293,000 (2023: £1,810,000) of bank and other 
interest costs and the interest expense on lease 
liabilities of £1,654,000 (2023: £1,222,000). Bank and 
other interest costs principally relate to the Group’s 
HSBC Bank plc revolving credit facility with the 
increase in interest cost reflecting higher levels of 
facility utilisation and borrowing in 2024. 
The tax charge of £1,273,000 (2023: £567,000) consists 
of a current tax charge of £1,106,000 (2023: £1,112,000) 
primarily relating to taxable profits generated by the 
Group’s Taiwanese operations. Deferred tax asset 
recognition has been restricted in the UK and US to 
reflect future forecast profitability, an assessment 
that includes the impact of the continuation of weak 
customer demand as market recovery is forecast to 
remain subdued in certain key sectors following the 
global semiconductor industry downturn. As a result, 
lower utilisation of UK and US deferred tax assets is 
projected, which has restricted the ability to 
recognise deferred tax assets for current year losses. 
The effective tax rate of 1.1% (2023: 3.4%) applicable to 
the tax charge of £157,000 (2023: £192,000) on 
adjusted items is less than the UK statutory tax rate of 
Strategic Report
IQE Annual Report and Accounts 2024
31

Financial review continued
25% primarily due to the non-recognition of deferred 
tax assets for current year UK and US trading losses 
which include the adjusted Chief Executive Officer 
recruitment costs, Chief Executive Officer severance 
costs and restructuring costs.
The increase in the loss for the year to £38,178,000 
(2023: £29,378,000) principally reflects the impact of 
adjusted items which include the non-cash impact of 
£8,418,000 (2023: £nil) of asset impairments. At an 
adjusted level, the loss for the year remained broadly 
flat year-on-year at £23,734,000 (2023: £23,990,000). 
Basic and diluted loss per share has increased from a 
loss per share of 3.28p to a loss per share of 3.96p in 
the current year with adjusted basic and diluted loss 
per share of 2.46p (2023: 2.68p) reflecting the Group’s 
loss at a statutory and adjusted profit level.
Cash generated from operations decreased in the 
year to £1,282,000 (2023: £10,074,000), principally 
reflecting the impact of working capital in a year 
when the business has experienced limited growth. 
The outflow in working capital of £3,768,000 required 
to support the low levels of growth compares to a 
significant inflow in working capital of £10,882,000 
experienced in 2023 when the size of the business 
contracted significantly, which, combined with strong 
working capital management, particularly in the 
areas of inventory and trade receivables delivered 
the favourable working capital inflow. The Group has 
continued to invest in capacity to diversify into 
high-growth markets with capital expenditure of 
£11,359,000 (2023: £12,158,000) principally focused on 
Gallium Nitride related manufacturing capacity, 
enabling diversification into the high-growth power 
electronics and advanced display (uLED) markets, 
intangible asset expenditure of £1,609,000 
(2023: £3,113,000) focused on a combination of 
intellectual property and the Group’s multi-year 
strategic IT transformation programme and 
investment in targeted capitalised technology 
development of £1,877,000 (2023: £2,852,000) primarily 
related to Gallium Nitride technology development.
The decrease in cash generated from operations, 
combined with investing activity cash costs of 
£10,194,000 (2023: £17,960,000), repayment of lease 
liabilities of £3,470,000 (2023: £4,787,000) and net 
increases in bank borrowings of £15,445,000 
(2023: £18,431,000 repayment) have combined to 
maintain the Group’s cash position at £4,660,000 
(2023: £5,617,000) but resulted in an increase in net 
debt (excluding lease liabilities and derivative 
financial instruments) from £2,228,000 to £18,800,000 
as at 31 December 2024. 
Equity shareholder funds total £134,110,000 
(2023: £169,785,000) with the movement from 2023 
primarily reflecting the loss for the year. 
Jutta Meier
Chief Executive Officer and Chief Financial Officer
12 May 2025
32
IQE Annual Report and Accounts 2024

Strategic Report
IQE Annual Report and Accounts 2024
33

Stakeholder engagement
Our impact on, and engagement with, our key 
stakeholder groups is considered within the 
implementation of our strategy, which is overseen by 
the Executive Leadership Team and supported by the 
Board of Directors. We consider the impact we have 
on our stakeholders, as well as what our stakeholders 
consider important when developing IQE’s strategies 
for future success. Engagement with our stakeholders 
allows us to grow and execute our strategy and we 
have used a range of engagement mechanisms to 
How the Board has engaged with shareholders, the workforce and other stakeholders:
Stakeholder
Stakeholder description
Material issues
How we engage
Customers
We provide the best advanced 
compound semiconductor 
materials solutions to our 
customers, supported by 
bespoke product offerings and 
personalised customer support. 
We have a wide and diverse 
range of customers serving end 
applications aligned with our 
core markets of Connect, Sense, 
Power & Display.
•	Consistently high-quality 
products, technical 
expertise and continuous 
improvement
•	High standard of 
business conduct
•	Continuous improvement
•	Fair pricing
•	Excellent ongoing 
customer support
•	Continuity of supply
•	The Executive Leadership 
Team and other senior 
management frequently host 
and attend meetings with key 
customers around the world, 
both virtually and in person. 
These meetings provide 
management with meaningful 
opportunities to understand 
first hand, at a senior level of 
the organisation, how we can 
enhance our offering to 
customers by understanding 
their current and future needs.
•	The CEO and other members 
of the Executive Leadership 
Team provide the Board with 
feedback and trends from 
these meetings.
Tom Dale
Chief People Officer & General Counsel
Consistent 
engagement
It is important that we continue to 
engage with all of our stakeholders 
as we progress our strategic goals 
and plans for continued success.
understand and consider our stakeholders’ views. 
Whilst the Board engages with certain stakeholders 
directly, there is also significant engagement by 
senior management and throughout IQE. 
We have set out below our key groups of 
stakeholders, the issues and factors relevant to those 
stakeholders and how we have engaged with those 
stakeholders over the past year.
34
IQE Annual Report and Accounts 2024

Stakeholder
Stakeholder description
Material issues
How we engage
Employees
Our employees are fundamental 
to our business success. We 
have a responsibility to support 
their health, wellbeing and 
development at IQE. A highly 
capable and diverse workforce 
will also enable us to better 
understand our customers and 
markets. We aim to continually 
invest in our people, developing 
the capabilities that we will need 
to succeed over the longer term. 
We are committed to becoming 
the company where the best in 
our sector want to work and 
strive to offer opportunities that 
will attract, motivate and retain 
a diverse pool of talented 
employees, enabling them to 
give their best.
•	Opportunities for 
personal development 
and career 
progression
•	Trust and 
encouragement to 
contribute to the 
success of the 
business
•	Consideration of their 
health, safety and 
wellbeing 
•	Working as part of an 
equitable, inclusive 
and diverse culture
•	Clarity of expectation 
on how recognition 
and remuneration 
structures align with 
accountabilities
•	The Board engaged with a broad 
range of employees throughout 
the year through informal 
site-based meetings and from 
feedback provided to the 
directors responsible for 
employee engagement. 
•	The CEO and wider ELT host 
regular all-employee Town halls 
and site-based all-hands 
meetings to proactively engage 
with our people.
•	We continue to promote our ‘Zero 
is possible’ health and safety 
programme.
Investors and 
Shareholders
We place considerable 
importance on the maintenance 
of regular and open dialogue 
with our shareholders. Our goal 
is to deliver returns to our 
investors and shareholders 
through profitable and 
sustainable growth with the 
efficient use of capital. Our 
investors and shareholders are 
also key contributors in the 
formation of our sustainability 
agenda.
•	Current and future 
financial performance
•	Maximising 
opportunities for 
growth
•	We actively engage with 
shareholders throughout the year 
to ensure they understand the 
performance of our business. Our 
ongoing programme includes 
numerous shareholder meetings 
and roadshows, which are 
facilitated alongside our full and 
half year results.
•	The Chair, Remuneration 
Committee Chair, and CEO all 
directly engaged with a range of 
shareholders on key topics 
including the Group’s financial 
performance, strategy and 
Executive Director Remuneration.
•	Virtual meetings were held with 
our largest shareholders to 
understand their priorities for the 
Group’s sustainability agenda.
Partners and 
Suppliers
Our supply chain plays a vital 
role in supporting our products 
and broader business strategy 
and we recognise the value of 
our partners and suppliers. To 
meet the expectations of our 
customers, we develop strong 
working relationships with our 
suppliers and look for our suppliers 
to provide excellent, consistent 
quality and added value. 
Engaging with our supply chain 
is also crucial in the development 
and delivery of our Net Zero 
commitment and SBTi targets.
•	Forecasting visibility 
•	Product quality 
•	Fair pricing 
•	Long-term 
partnerships
•	The Board received regular 
updates throughout the year 
regarding industry-wide supply 
chain challenges and the 
ongoing work to mitigate the 
impacts of these challenges.
•	Our Executive Leadership Team 
and other senior managers work 
closely with our supply chain 
partners to involve them in our 
planning processes and 
alignment with our strategy.
Society
We believe that our technology 
and products will benefit and 
advance society and provide a 
positive impact on the world’s 
sustainability. We work hard to 
ensure that we have a positive 
impact on all those around us.
•	Opportunities for local 
investment
•	Impact on local and 
wider environmental 
and social issues
•	We use market data and insights 
to develop new products which 
will bring benefits to society.
•	Our ESG Committee has 
oversight of the Group’s 
sustainability agenda and is 
focused on developing the 
Group’s approach to climate 
change, amongst other things.
Strategic Report
IQE Annual Report and Accounts 2024
35

Section 172(1) statement
Engaging with our stakeholders and acting in a way 
that promotes the long-term success of the Group, 
while considering the impacts of our business decisions 
on our stakeholders, is central to our strategic 
thinking and our statutory duty in accordance 
with Section 172(1) of the Companies Act 2006. This 
constitutes our Section 172 Statement as required 
under the Companies (Miscellaneous Reporting) 
Regulations 2018.
The Board of Directors considers, both individually 
and collectively, that it has acted in a way that it 
considers, in good faith, would be most likely to 
promote the success of the Company for the benefit 
of its members as a whole, having regard to the 
matters set out in Section 172 (a) to (f), in the 
decisions taken during the year.
Recognising that companies are run for the benefit 
of their shareholders, but that the long-term success 
of a business is dependent on maintaining relationships 
with stakeholders, the Board continuously reviews 
which relationships support the generation and 
preservation of value in the Company. These 
relationships include those with our customers, 
employees, investors and shareholders, partners and 
suppliers and society.
As a Board, our intention is to behave responsibly and 
ethically at all times, in line with our Company values, 
and to ensure that our management teams operate 
the business in a responsible manner and to the 
highest standards of business conduct and good 
governance. As we act in a way which reflects our 
values, we will contribute to the long-term success of 
the Company and continue to develop our reputation 
as a responsible and successful Company that 
delivers stakeholder value.
Further information as to how the Board has had regard to the Section 172 factors:
Section 172 Factor
Key Examples
Page
A. Consequences of any 
decision in the long term
•	 Consideration of how IQE generates long-term value through 
the development of our Business Model and Strategy
•	 Risk management
Page 18
Page 24
Page 62
B. Interests of employees
•	 Participation in Diversity, Equity and Inclusion planning for the 
business
•	 Promotion of employee wellbeing initiatives and benefits 
awareness
•	 Participation in Town Halls and employee forums
•	 Sustainability
Page 41
C. Fostering business 
relationships with 
suppliers, customers 
and others
•	 Building strong relationships with customers and suppliers 
within the Group’s supply chain, which is essential for 
achieving the Group’s long-term strategic goals
Page 38
D. Impact of operations on 
the community and the 
environment
•	 Consideration of Environmental, Social and Governance 
improvement strategies
•	 Review of environmental performance, ISO 14001 Environmental 
management system and emission reduction initiatives
•	 Sustainability
Page 45
E. Maintaining high 
standards of business 
conduct
•	 Promotion of responsible business operations, with a focus on 
the Group’s Anti-bribery and Corruption, Confidentiality and 
Whistleblowing policies, and Anti-Slavery Statement
Page 39
F. Acting fairly between 
members of the Company
•	 Shareholder engagement
•	 Investor information and the Annual General Meeting
Page 35
Stakeholder engagement continued
36
IQE Annual Report and Accounts 2024

Responsible business 
approach and priorities
Through 2023 and early 2024 we conducted a formal 
materiality assessment to ensure we had a wide 
range of stakeholder views to inform our prioritisation 
of the sustainability issues with the greatest impact 
on our business, communities and the environment. 
We expect to refresh the materiality assessment in 
2026.
The materiality assessment was developed through 
several steps using a third party to ensure a thorough 
approach. We initially used a desktop survey as a 
pre-assessment to determine the key issues in 
current corporate reporting. We used that initial 
assessment as the basis for engaging a range of 
stakeholders, starting with interactive sessions with 
our global leadership team, site-based workshops 
A matrix of materiality impacts
LEVEL OF IMPORTANCE TO STAKEHOLDERS
LOWER
HIGH
IMPORTANT
MATERIAL
PRIORITY
LEVEL OF BUSINESS IMPACT
LOWER
HIGH
Reduction of energy usage  
and greenhouse gases
Strong and effective 
communication
Efficient use of resources
Achieving 
Net Zero
Waste reduction  
and recycling
and interviews with our major shareholders. We then 
used feedback from our customers and suppliers, 
through their own corporate reporting and requests 
or surveys to IQE, before reviewing the combined 
feedback with our Executive Leadership Team 
and the ESG Committee. 
Once identified, the material issues were plotted 
on our materiality matrix and assessed against the 
level of business impact* and level of concern to 
stakeholders. A copy of the final materiality matrix 
is shown below. 
We will prioritise our efforts against the items towards 
the top right hand corner of the matrix.
Employee’s mental 
health and wellbeing
Employee 
engagement
Employee training and development
Diversity, Equity and Inclusion
Engagement with 
the communities in 
which we operate
Culture
10
11
Effective health 
and safety 
management
12
Responsible sourcing
13
4
3
Supply chain management and auditing
14
7
2
8
Human Rights and commitments to preventing Modern Slavery
15
Zero tolerance approach to bribery and corruption
16
Cyber and data security
17
9
6
5
1
Effective stakeholder 
management
18
Responsible approach to tax
19
Whistleblowing
20
Environment
Social
Governance
Responsible business
	*
Impact on IQE’s ability to create economic, environmental 
and social value. 
Strategic Report
IQE Annual Report and Accounts 2024
37

Responsible business continued
As part of our proud Science-Based Targets initiative 
(SBTi) commitment to Net Zero, IQE is working closely 
with our supply chain partners supporting the 
transition to cleaner manufacturing methods, 
particularly for our bulk gases. The Company is 
progressing closer to having all bulk gases produced 
from processes that generate zero emissions, 
aligning IQE plans to scale responsibly in the future.
Anti-bribery and corruption
IQE maintains a zero-tolerance approach to bribery 
and corruption. We have an established Anti-bribery 
and Corruption Policy, which includes guidance on 
the giving and receiving of gifts and hospitality. A 
Gifts and Hospitality Register is also maintained to 
ensure transparency. Our policies are supported by 
regular employee training. 
The key principles we expect everyone to follow 
include not offering or accepting bribes or improper 
payments; not improperly influencing any individual; 
and not participating in any kind of corrupt business 
activity, either directly or through a third party. 
Third-party agents and distributors are subject to 
additional due diligence checks.
Trade compliance
We have policies and processes to ensure we do 
business in accordance with all applicable trade 
compliance laws. Our policies and processes are 
standardised where possible and are regularly 
audited by our specialist trade compliance team. We 
engage regularly with relevant government bodies in 
the UK and US, and their equivalents in other 
jurisdictions. IQE’s proactive response to geopolitical 
shifts in recent years has positioned the Group 
positively to benefit from diverging supply chains.
Our suppliers share a commitment to responsible 
sourcing practices which is more important now than 
ever. They are key partners and continue to play a 
critical role in helping us achieve our vision and goals. 
We expect our supply chain partners to uphold the 
same high standards as IQE leaders and employees, 
and always to act in an ethical, efficient and 
transparent manner.
IQE partners with over 100 direct suppliers to identify 
and address potential areas of risk in our supply 
chain. Risks may include physical impacts of climate 
change, geopolitical impacts, or risks that threaten 
our suppliers’ ability to conduct business. To further 
enhance our risk capability, we have a comprehensive 
third-party partner who assists IQE to continuously 
assess these risks within our supply base.
2024 supply chain review 
It was a very dynamic 12 months within IQE’s supply 
chain, with 2024 continuing to bring complexities and 
challenges. During the year China, announced further 
restrictions on the export of Gallium and Antimony, 
both of which are key components in compound 
semiconductor manufacturing. Thankfully, our 
strategy to strengthen the recycling of such materials 
over the past few years means that a significant 
portion of the Gallium IQE consumes now comes from 
recycled sources in addition to qualifying new 
sources, whilst our Antimony is already sourced 
outside of Asia. 
IQE is committed to advancing a circular economy, 
focusing on increasing recycling and reuse of waste, 
while ensuring that our raw materials are produced in 
the most eco-friendly way. In 2024, we maintained a 
100% recycling rate for all our Gallium Arsenide (GaAs) 
and Indium Phosphide (InP) wafer waste, 
transforming it back into high-purity raw materials 
that are reintegrated directly into our supply chains.
David Bishop
Head of Global Supply Chain
Supply chain
The scale of IQE’s business and our 
global supply chain means we are 
committed to sourcing responsibly. 
We partner with our suppliers to 
implement rigorous standards that 
safeguard the health and safety of 
our people and communities.
38
IQE Annual Report and Accounts 2024

Inside information and share dealing
We take steps to ensure our compliance with the 
obligations arising from the AIM Rules, Disclosure and 
Transparency Rules (where applicable) and the UK 
Market Abuse Regulations (‘MAR’) in relation to the 
dissemination of inside information to the market, 
which Includes our share dealing policy and 
procedures. We also have our own internal Share 
Dealing Policy. 
We have the right procedures to identify and control 
access to inside information and, where necessary, to 
ensure that it is promptly disclosed to the market. We 
ensure that the Financial Conduct Authority is notified 
of any delayed disclosure on announcement of inside 
information to the market. We maintain secure lists of 
anyone who has access to inside information and 
ensure that those working for us do the same. We 
ensure that everyone on those lists is aware of and 
acknowledges the legal and regulatory duties 
required of them while on the list. 
“It is critical that IQE’s ethical 
standards are upheld by 
our supply chain partners 
and this is mandatory in all 
of our supplier relationships. 
Strongly aligned partnerships 
and clear communication 
channels with our suppliers 
at the highest levels help 
to minimise supply chain 
disruption and cost, whilst 
increasing efficiencies 
and reducing waste.”
Whistleblowing
IQE offers staff a confidential reporting mechanism, 
overseen by the Group’s Chief People Officer & 
General Counsel, which enables employees to raise 
concerns of malpractice, non-compliance or 
unethical conduct. The options for raising concerns 
are widely communicated to employees and are 
clearly set out in our Whistleblowing Policy. Any 
whistleblowing reports are confidentially reported to 
the Audit & Risk Committee. 
Intellectual property and confidentiality
Our intellectual property (IP) is an important asset 
and key to our continued success. We have 
comprehensive policies and procedures to identify 
and protect our IP, whether that be through 
registered or unregistered IP rights. 
Maintaining confidentiality is ingrained in our culture. 
Our policy and practice ensure that all staff fully 
understand what constitutes confidential information 
and restrict internal access on a need-to-know basis. 
Information relating to third parties is not disclosed 
without the third parties’ written consent.
We have established processes for the negotiation 
and signing of all confidentiality agreements and 
employees are able to access our standard 
templates and training modules. 
+ Read more on page 44.
Human Rights and Anti‑Slavery Statement
IQE is committed to respecting the human rights of all 
those working with or for us. We do not accept any 
form of child or forced labour and we will not do 
business with anyone who fails to uphold these 
standards. IQE has a zero-tolerance approach to 
modern slavery and is committed to acting ethically 
and with integrity in all of its business dealings and 
relationships and to implementing and enforcing 
effective systems and controls to ensure modern 
slavery is not taking place anywhere in its business or 
in any of its supply chains. The Modern Slavery Act 
addresses the role of businesses in preventing 
modern slavery within their organisations and in their 
supply chains. IQE has developed and implemented 
policies to comply with the requirements of the UK’s 
Modern Slavery Act and our Anti-Slavery Statement 
can be found at iqep.com.
 + Read more at iqep.com/responsibility.
Financial sustainability and tax 
transparency 
We ensure compliance with all relevant tax law in all 
jurisdictions in which the Group operates whilst 
managing the associated tax costs in a manner that 
is consistent with our Code of Conduct and its 
attitude to commercial risk. We seek to maintain 
stable effective and cash tax rates which reflect the 
geographic markets in which we operate, and the 
Group’s tax attributes, such as brought-forward 
losses and special deductions such as for research 
and development. We ensure that all communication 
with tax authorities is conducted in a transparent and 
professional manner. 
Strategic Report
IQE Annual Report and Accounts 2024
39

Tom Dale
Chief People Officer & General Counsel
Culture, values, communication and 
engagement 
We are striving to create an open, inclusive and 
values-driven culture. We want all of our people to 
feel able to share their views in two-way 
conversations with their peers, line managers and 
senior leaders. 
Following the executive restructure in late 2024, the 
new Executive Leadership Team have focused on 
holding regular in-person and virtual briefing 
meetings with our people to enhance the openness 
and transparency of our communications. Employees 
are encouraged, and do, ask a range of questions in 
advance of the meetings and time is retained at 
each meeting for an open forum-style discussion 
and Q&A. We intend to enhance of communication 
and feedback loop with our employees in 2025 
through the introduction of regular 'pulse' surveys and 
the reintroduction of an annual people survey. This 
will enhance our ability to capture and monitor a 
range of cultural KPIs and to form our site and group 
action plans around those.
In 2025 we intend to refresh our Vision, Mission and 
Values and to introduce our ways of working, aligning 
our company objectives to how we work together 
every day and the role each of us has to play in the 
achievement of IQE's strategy and goals.  We will 
integrate these into our leadership interactions and 
employee communications as an integral part of the 
delivery of our strategy. 
“In the year 2024 we saw significant 
changes to our executive leadership 
and a reduction in the Group’s 
overall headcount through a 
mixture of voluntary and involuntary 
departures. In 2025 we will be 
focused on delivering the working 
environment and development 
opportunities that our people 
want to see.“
Our people
Responsible business continued
Gender diversity
Group-level recruitment
2023
2024
Female
Male
22%
81%
78%
19%
Group level
2023
2024
83%
17%
17%
83%
Board level
2023
2024
44%
43%
56%
57%
40
IQE Annual Report and Accounts 2024

Diversity, Equity, Inclusion and Belonging (DEIB) 
IQE’s population is made up of different races, 
genders, ethnicities, backgrounds, religions and 
beliefs across our global sites. IQE is committed to 
providing equal opportunity, fair treatment and 
inclusion for all, without regard to race, gender, age, 
religion, ethnicity, identity, sexuality, disability, genetic 
disposition, neurodiversity, veteran status, perspective, 
experience or any other aspect which makes an 
individual unique. 
A central part of our DEIB commitment is our desire to 
demonstrate inclusive leadership and represent the 
diversity of our organisation and the communities 
where we live and work. We seek to develop and 
sustain a supportive and collaborative working 
environment where difference is recognised, valued 
and celebrated, whilst recognising the differences in 
the legislative frameworks and cultural heritage in the 
different places in which we operate. 
In particular, we recognise that gender diversity 
remains an ongoing issue within our industry and we 
are committed to improving our gender balance. We 
are supporting our Talent Acquisition Team to 
increase inclusion during the hiring process, with the 
aim of attracting, developing and retaining STEM 
talent and securing a more diverse pool of joiners. We 
did not see any improvement in the diversity of 
recruitment in 2024 and in 2025 we will be working 
with our recruitment team and external partners to 
continue to promote diverse candidate shortlists.
In early 2024, we partnered with an external diversity 
and inclusion specialist to deliver ‘Contributing to a 
Diverse Workforce’ training to UK employees; the 
workshops focused on unconscious bias, 
microaggressions and understanding the 
importance of language. We achieved 87% 
attendance and positive feedback from attendees. 
Our Women’s Network continued in 2024 and is being 
refreshed in 2025, focusing on sharing information, 
supporting development, encouraging leadership, 
strengthening networks, uncovering opportunities 
and championing success for women across the IQE 
Group. For International Women’s Day, our Women’s 
Network facilitated a Q&A session with our CEO  
and CFO, Jutta Meier, and Chief People Officer and 
General Counsel, Tom Dale, focusing on personal 
experiences and allyship.
We continue to celebrate diversity through our 
cultural celebration calendar. Recognising the 
traditions and celebrations that are important to our 
employees acknowledges and embraces the 
diversity of our global team and fosters a positive 
and communicative environment. Pride Month 
celebrations focused on bringing to life the 
experiences of our LGBTQi+ employees through a live 
Q&A session as well as sharing educational resources 
with our teams. 
We launched several new global People policies this 
year including an Equity, Diversity and Inclusion Policy, 
Gender Identify and Transitioning at Work Policy, and 
a Menopause Policy, alongside a Menopause Toolkit 
for managers, reaffirming our commitment to 
diversity, inclusion and belonging at IQE.
We are also aiming to build strategic partnerships 
with diverse organisations and networks who share 
our commitment to DEIB and can support us with our 
evolving journey of effective and sustainable 
transformation.
In 2024, we improved our Board diversity with the 
hiring of Jutta Meier, and our Board is now proudly 
57% female.  
Employee wellbeing 
IQE is focused on the physical and mental health of 
our employees, especially during a difficult year for 
our workforce. We routinely promote wellbeing 
support available through our employee benefits 
platforms and undertake benefits seminars to ensure 
our leaders, people managers and employees are 
aware of the assistance available to them. 
We continue with our Employee Assistance 
Programmes (EAP) which offer 24/7 support and 
include bereavement assistance, counselling, legal 
and financial support. Early intervention assistance is 
provided through external specialists and employee 
wellness plans, mitigating absence and aiding return 
to work. 
Taking into consideration the challenging year our 
employees were experiencing; we recognised both 
Mental Health Awareness Week and World Mental 
Health Day. For Mental Health Awareness Week, we 
encouraged our teams to ‘get moving’ in line with 
2024’s theme and share their activities on our 
communications platform. For World Mental Health 
Day, we held ‘Time to Talk’ lunchtime sessions with our 
Mental Health First Aiders; an opportunity for our 
employees to talk individually or in a group. For both 
events, we shared relevant resources available 
internally and externally. 
Empowering and supporting our talent 
IQE attracts some of the best and brightest global 
talent in our industry. We are continuing to use  
our Competence Management System which 
encompasses a formal learning and assessment 
process and various training and development  
forms, plans and logs. Training processes are now 
communicated within departments and formalised 
via our document control systems. 
Our Talent Development team will continue to work 
with managers and employees to effectively identify, 
source and facilitate learning and development 
activities, supported, where possible, by government 
funding. This includes supporting professional 
development through formal qualifications, as well as 
enhancing on-the-job knowledge and skills. 
Strategic Report
IQE Annual Report and Accounts 2024
41

Responsible business continued
Learning and Development 
Our Learning and Development strategy is focused 
on developing the capabilities, skills and 
competencies of our site-based teams. We have also 
spent time looking at single points of failure and 
areas of resource scarcity to assist with the retention 
of key talent. IQE’s recent financial performance has 
constrained some Learning and Development 
initiatives in recent years, but this is an area that our 
Chief People Officer and Executive Leadership Team 
know is important for our people and will be 
prioritised in 2025 and beyond. 
Our teams initiated high-potential employees with 
the ‘9 Box’ evaluation and started conversations and 
developing action plans to develop our senior leaders. 
Moreover, we enabled employee mobility and training 
through job rotation assignments. We assigned two 
engineers from Taiwan to Newport for training, helping 
as able engineering support for our Newport engineers. 
As a company with highly valued intellectual 
property, we have continued our mandatory 
Intellectual Property courses on our LMS to improve 
the understanding of IP for all IQE employees with the 
desired outcome of better identifying, protecting and 
exploiting our valuable IP.
We continued to invest in the development of our 
employees with a Six Sigma Black Belt qualification, 
with a cohort of eleven employees., due for 
completion in Summer 2025. Due to the success of 
the qualification, a second cohort will be enrolled in 
2025. We have also enhanced our employees’ total 
rewards knowledge with a series of modular videos 
on our Long-Term Incentive Plan.  
Early careers
Over the past year, IQE has continued building 
relationships with local schools, colleges and 
universities, to provide education and knowledge to 
students and education leaders on the 
semiconductor industry and career offerings. In 2024 
this included welcoming PhD students from local 
universities to our South Wales sites, as well as 
running CV writing and interviewing skills workshops. , 
We have partnered with Milton Keynes college, 
offering placements to T-level engineering students 
who attend our site weekly to gain hands-on 
experience and shadow our teams.
To bolster our talent pipeline, we have also held work 
experience and intern placement opportunities in the 
UK and US, allowing students to rotate around and 
gain exposure to various IQE departments. This is an 
important step in raising awareness of STEM careers, 
particularly for students from diverse backgrounds, 
securing hires and building robust talent pipelines.  
We held an ‘Inspire the Next Generation of Leaders’ 
day during the Summer of 2024, led by our Women’s 
Network, we invited our employees’ children and 
family members to our global sites to experience life 
at IQE. We conducted exciting experiments, learnt 
about a variety of roles available at IQE and had a 
tour of our facilities.
42
IQE Annual Report and Accounts 2024

Communities  
and social review
For many years IQE has offered 
support to local communities through 
initiatives focused on wellbeing, 
inclusion and giving back. We are 
proud of the impact of our work, 
which reflects our commitment to 
social responsibility and strengthening 
community partnerships.
Giving Something Back
IQE employees are entitled to one full or two half days 
volunteering leave annually. We are focused on a 
global approach to giving, but with local execution, 
making sure we are supporting the engagements 
and initiatives that mean the most to our people and 
their communities.
Habitat for Humanity
IQE Massachusetts participated in Habitat for 
Humanity in April 2024. We made a monetary 
donation and our employees also provided support 
through the building of a home for a low-income 
family. 
Pride in Pill
IQE supported Pride in Pill MBE for a further year, which 
is an organisation that supports children in hospital 
throughout Wales and England. At our South Wales 
sites we collected toys and made a monetary 
donation to support this initiative, which hopes to 
make hospital a more pleasant experience for 
children over the Christmas period.
Support of local sports teams
•	 Penybont Women Football Club
•	 Fairwater Rugby Football Club Mini Juniors
•	 Newport Grass Roots Cricket
Taiwan - Charity Walk
To support a local charity that cares for children in 
remote areas, our Taiwan team raised money by 
walking 10,000 steps per day. The IQE Taiwan team 
personally delivered their donations to the charity. 
NC Hurricane Helene Relief
Following the aftermath of Hurricane Helene which 
devastated areas of North Carolina, Georgia, South 
Carolina, Virginia and Florida, IQE launched a 
JustGiving page to support a local North Carolina 
charity (Community Housing Coalition (CHC) of 
Madison County) dedicated to aiding those 
impacted by the storm. Community Housing Coalition 
(CHC) of Madison County is a community-based 
nonprofit agency that facilitates urgent home repairs 
to low-income Madison County residents in need of 
assistance.
Strategic Report
IQE Annual Report and Accounts 2024
43

Intellectual property
IQE’s world-leading technology is underpinned by a 
strong intellectual property (IP) portfolio. Our process 
know how, the secrets of our trade which have been 
gained through more than 30 years in the field, 
enhances this work and is closely protected by IQE. 
In 2024, IQE continued to streamline its IP portfolio to 
better match the Company’s strategic goals and 
technology projects. IQE has around 90 granted 
patents, with 2024 yielding 17 new grants and 12 new 
patent applications. 
IQE’s patents cover all technology development areas 
and are increasingly aligned to the Company’s growth 
strategy in GaN technologies for Power and microLEDs. 
The portfolio is also aligned to our major market 
verticals: Smart connected devices, Communications 
infrastructure, and Automotive & Industrial. 
Innovation portfolio aligned to market verticals
“2024...our ’Year 
of Innovation’ 
saw another 
record number 
of innovation 
disclosures”
Victoria Yeomans
Head of IP
Smart Connected Devices
Communications Infrastructure
Automotive & Industrial
With rigorous internal processes to identify and 
review inventions in our teams, we are able to harvest 
inventions efficiently and to make strategic decisions 
over those that we protect by patent and those we 
protect by trade secrets and confidentiality. 2024, 
which we designated as our ‘Year of Innovation’, saw 
another record number of innovation disclosures 
made to the IP department which continued the 
trend of the last few years. Training of our staff ensures 
that everyone understands the value of our IP in our 
technology and products.
We are proud that IQE was second in the list of 
companies filing patents in the UK in the H01L technical 
classification (semiconductor devices) in 2024. 
2023
2024
Responsible business continued
44
IQE Annual Report and Accounts 2024

Health, Safety, Security 
and Environmental 
review
2024 marked a significant milestone in IQE’s Health, 
Safety, Security and Environmental (HSSE) journey. An 
overall reduction in lost time and all injuries was very 
positive, albeit we continue to strive for our goal of 
achieving zero injuries, significant safety events, 
environmental breaches, and any work-related ill 
health. The internal focus which had begun on 
Process Safety gained a huge amount of traction 
within the organisation and resulted in some 
significant improvements being implemented. Pur 
commitment to Science Based Targets was formally 
validated along with achieving a further year of 
certification to ISO 14064:1 (verification of Greenhouse 
Gas inventory). Two of our sites in the USA attained 
joint certification to ISO45001 with the remaining site 
scheduled for certification in 2025. Additionally, the 
security functions within IQE became embedded into 
the Group HSSE team and with it a renewed focus 
and vigour for improvements. Numerous other Health 
and Safety programmes focused on continued 
improvement continued to be implemented at pace 
to ensure our systems and processes are fit to 
support our future growth ambitions. 
Drive to World Class
To drive the journey to World Class performance, we 
continue to focus on our six key pillars which are 
critical to achieving our vision:
Visible Leadership – increase the visibility and 
engagement of leadership to help develop a positive 
culture
Governance – implemented, robust governance 
processes for HSSE
Compliance Assurance – implementing robust 
compliance assurance processes
Competence – deploying a framework for 
demonstrable competence at all organisational 
levels
Learning Organisation – deploying a framework to 
support sharing and learning from events and best 
practices across the organisation
Continuous Improvement – actively seek out best 
practices internally and externally to drive continuous 
improvement across HSSE. We will also regularly 
review our existing processes to identify opportunities 
for improvement.
2024 Performance
1
lost time injuries
2023: 3
1,238
near miss reports/OFIs
2023: 1,805
15
all injuries
2023: 17
6,224
Positive conversations
2023: 4,383
0
regulator 
reportable events
2023: 2
2022
2023 2024
1,630
1,805
1,238
2022
2023 2024
799
4,383
6,226
Near miss/OFI 
Positive safety 
conversations
Strategic Report
IQE Annual Report and Accounts 2024
45

Health and safety 
performance
Zero Is Possible/Leading Metrics
During 2024 we focused our Zero is Possible 
campaigns on using the ‘three questions’ to facilitate 
positive safety conversations within the business. 
Positive safety conversations were soft launched 
within the Company during 2022 and formally driven 
with training during 2023. Although these are informal 
conversations, the total number is recorded and any 
outputs requiring further action are captured as 
opportunities for improvement. Promoting positive 
conversations with respectful challenge is a key 
element in driving a culture of openness and reporting 
in the organisation. The framework of the ‘three 
questions’ allows even the least confident team 
members to engage with the process and this 
supports the culture of respectful challenge which we 
are driving. With the support of this framework, during 
2024 the total number of positive conversations 
carried out was 6,224, a 678% increase on the baseline 
year and a 34% increase on the previous year.
The three questions have their foundations in process 
safety, having been extrapolated from direction given 
by the UK Health and Safety Executive following a 
major incident in the UK. However, they provide a 
simple framework that is applicable across all 
aspects of HSSE, making them ideal for use in positive 
conversations. Under the umbrella that positive 
behaviours must be led from the boardroom down, 
the three questions ask:
1.	 Do we know what can go wrong?
2.	Do we know what barriers we have to ensure that it 
doesn’t go wrong?
3.	Do we know that our barriers are effective and 
working properly?
The use of these across the organisation has led to 
numerous improvements being actioned and 
additional focus on the use of these will be applied 
during the coming year.
Responsible business continued
46
IQE Annual Report and Accounts 2024

During 2024 we also proactively reported 
opportunities for improvement and Near Miss events. 
These ‘free lessons’ allow us to robustly act to 
remediate any deficiencies before any 
consequences are realised. With the rise in positive 
conversations and the cultural shift that this brings, 
we recognised a decrease in overall Near Miss/
Opportunity for Improvement reporting. The reduction 
equated to 32% decrease in reporting against 2023 
performance. This was expected as positive safety 
conversations being carried out mean that potential 
issues are being discussed and potentially rectified 
before becoming Near Miss or OFIs. The number of 
Near Misses/Opportunities reported was still a 274% 
increase on the 2021 baseline year. Overall proactive 
reports (Near Misses/Opportunities/Positive 
conversations) rose overall year on year.
Overall Proactive Engagements
2023
2024
Positive conversations
4,383
6,224
Near Misses/OFIs
1,805
1,238
Overall
6,188
7,462
Lagging Metrics
Between 2023 and 2024, we went 491 days without a 
Lost Time Injury. Unfortunately, during November 2024 
a contractor colleague suffered a Lost Time Injury which 
led to one lost working day before he was able to 
return on full duties. This represents an improvement 
on previous years but any situation that results in our 
employees or contractor partners being injured is 
hugely disappointing to us and we strive to learn from 
such events to prevent reoccurrence in coming years.
2024 injuries
2023
2024
Lost Time Injuries 
3
1
All Injuries (inc. LTIs)
17
15
We had one Lost Time Injury in 2024 when a 
contractor employee sustained a cut to the head 
which was treated at hospital. The injured person lost 
one working day before returning to work on normal 
duties. 
The mantra “Nothing you do on this site today will be 
as important as going home to your loved ones safe 
and healthy” is displayed at our Newport site 
entrance and will be rolled out across the rest of our 
sites in the coming year as we continue our cultural 
improvement journey and improve mindsets.
“Nothing you do on this site 
today will be as important 
as going home to your loved 
ones safe and healthy“
This message is displayed at our Newport site 
entrance and will be rolled our across the rest of our 
sites in the coming year.
Strategic Report
IQE Annual Report and Accounts 2024
47

Environmental performance
2024 Environmental performance
2023
2024
Environmental incidents 
(Reportable)
0
0
Environmental incidents  
(Not reportable)
2
4
NM/OFI environmental
133
135
Average per site 
13.3
15
Science-Based Targets
Following our attainment of the independently 
verified ISO 14064 GHG emissions reduction standard 
during 2021 and a commitment to the Science-Based 
Targets initiative (SBTi) made during 2022, IQE’s ESG 
Committee have actively been working to ensure 
robust plans are in place to facilitate our emissions 
reduction journey. 
During 2024 we achieved the milestone of 
successfully attaining approval of our science-based 
targets to reduce greenhouse gas emissions in line 
with the SBTi Net Zero Standard, which seeks to limit 
global warming to 1.5oC. The SBTi’s Target Validation 
Team has classified IQE’s near and long-term targets 
as in line with this ambition and has also verified IQE’s 
mitigation pathways for reaching Net Zero by 2050 or 
sooner. Part of this process was gathering data 
relating to Scope 3 emissions. This included engaging 
with our supply chain partners to, where possible, 
gather data relating to the impact of GHG emissions 
from purchased goods and services, upstream and 
downstream transport and further processing. Key to 
SBTi involvement is the Company outlining how we 
will reduce our emissions over a set period. These 
targets galvanise the action required for significant 
emissions reductions to be achieved by 2030. 
2024 performance
Pleasingly, the focus outlined regarding reporting 
of Opportunities for Improvement and Near Misses 
across the business had a further positive effect on 
Environmental reporting across our sites. The average 
number of Environmental Opportunities or Near 
Misses reported increase in the past year from 13.3 
average per site to 15. All of these were remediated 
and investigated to prevent re-occurrence. 
Emissions performance
A 19.11% reduction in absolute emissions was achieved 
for 2024 (five year rolling average) in comparison to 
2021 baseline (Scope/category 1 & 2. This is due to 
several factors, most notably with 2024 being the first 
full year without our Singapore and smaller 
Taiwanese site being included in the calculation due 
to their closure, along with the Pennsylvania facility 
not being operational and the scaling down of the 
Silicon site. These organisational consolidation 
exercises resulted in a significant drop in electric and 
gas consumption. However, direct emissions 
increased in the period due to the introduction of new 
reactors and permitting changes which now allow 
increased hours of reactor operations. 
Other elements such as air travel witnessed a 
significant rise during the years since the restrictions 
imposed due to the global pandemic were lifted 
across the globe. However, in 2024 with tighter control 
over business travel a decrease in emissions from 
business travel was seen. For the first time we had 
some GHG emissions increase from losses of 
fluorinated gases in some site cooling systems. This is 
disappointing and these situations will continue to be 
monitored to ensure they remain controlled.
Certification
In 2025 IQE will be fully audited to re-certify to the ISO 
14064-1 standard to ensure we have maintained our 
high standards of emissions reporting. This will 
represent our fourth year of certification.
0
Environmental  
breaches
0
Environmental 
reportable incidents
Responsible business continued
48
IQE Annual Report and Accounts 2024

Emissions data
Inventory summary (mandatory ISO 14064 criteria) tCO2e )
Category (ISO 14064-1:2018) 
Scopes
(ISO 14064-1:2006)
2023
2024
Category 1: Direct emissions
Scope 1
2,757
3,455
Category 2: Indirect emissions from imported energy (location-based 
method)
Scope 2
15,068
14,328
Category 3: Indirect emissions from transportation
Scope 3
968
519
Category 4: Indirect emissions from products used by organisation
Scope 3 
811
852
Category 5: Indirect emissions associated with the use of products 
from the organisation
Scope 3 
0
0
Category 6: Indirect emissions from other sources
Scope 3 
0
0
Total direct emissions
2,757
3,455
Total indirect emissions
16,847
15,699
Total gross emissions
19,604
19,154
Category 1 direct removals
0
0
Purchased emission reductions
0
0
Total net emissions
19,604
19,154
Emissions Intensity (Operating revenue/gross tCO2e) (£m)
Total emissions
177.50
Total Water Use Volume and Sources (cubic metres)
2023
2024
Municipal Supply
133,516
78,724
Recycled Water
0
3,057
Purchased Water 
608
756
Total Water
134,124,
82,537
Waste generation (tonnes)
2023
2024
Landfill (Non-Hazardous) to Land
54
49
Recycled
1,670
1,377
Hazardous
266
203
Energy (Incineration)
25
25
Total Waste
2,015
1,654
Energy consumption summary 
2023
2024
Natural Gas 
9,260,578
9,177,207
Electricity 
49,858,608 47,918,407 
Strategic Report
IQE Annual Report and Accounts 2024
49

Introduction
IQE has a unique opportunity to contribute to global 
efforts towards a sustainable future. Our products will 
enable the transition to clean energy, whether that be 
through the use of renewable energy, energy storage, 
efficient power inverters or the many other 
applications where compound semiconductors offer 
better and more efficient performance. At IQE we are 
enthusiastic about the role we have to play in the 
greener future and we are embracing the environmental, 
social and governance (‘ESG’) considerations to 
running a modern, diverse global business. 
Whilst IQE has prioritised its financial and business 
performance throughout 2024, we have continued to 
make steady progress in the assessment of our 
climate-related risks and opportunities. With the help 
of our external consultants, we have completed a 
climate change scenario analysis providing a 
comprehensive, data-driven examination of the 
climate-related risks most likely to affect IQE’s facilities 
across our three critical regions and focusing on our 
largest sites in Cardiff and Newport in South Wales, 
North Carolina, USA and Hsinchu City in Taiwan. 
On 24 October 2024 our near-term and Net Zero 
targets were approved by the Science-Based Targets 
initiative (SBTi), validating IQE's Scope 1, 2 and 3 
long-term target ambitions and alignment with SBTI's 
1.5 degrees mitigation pathways for reaching Net Zero 
by 2050 or sooner. The SBTi is a leading climate 
action organisation that has developed standards 
and tools which allow companies to set greenhouse 
gas emissions reduction targets in line with what is 
needed to keep global heating below catastrophic 
levels and reach Net Zero by 2050 at latest. 
Compliance Statement
IQE is registered on the AIM segment of the London 
Stock Exchange. We have reported on our Climate-
related Financial Disclosures using the Task Force 
on Climate-related Financial Disclosures (‘TCFD’) 
framework. We consider our disclosures to be 
consistent with all TCFD recommendations and with 
the climate-related financial disclosure requirements 
under the Companies (Strategic Report) (Climate-
related Financial Disclosure) Regulations 2022. We 
have structured our TCFD report in line with the four 
TCFD pillars: Governance, Strategy, Risk Management, 
and Metrics and Targets. 
You will also note a number of cross references 
through our TCFD report to other sections in the 
Annual Report where additional relevant information 
is available.
“We have made good 
progress in 2024 in a 
challenging business 
environment and remain 
committed to reducing the 
impact of our operations 
on the environment.”
Tom Dale
Chief People Officer & General Counsel
Climate-
related 
financial 
disclosures
Task Force on Climate-related 
Financial Disclosures Statement for 
the year ended 31 December 2024.
TCFD Report
50
IQE Annual Report and Accounts 2024

TCFD pillar
Recommended disclosure
Disclosure 
locations 
Governance: Disclose the 
organisation’s governance around 
climate-related risks 
and opportunities
A. Describe the Board’s oversight of climate-related risks 
and opportunities
Page 52
B. Describe management’s role in assessing 
and managing climate-related risks and opportunities
Page 52
Strategy: Disclose the actual 
and potential impacts 
of climate-related risks 
and opportunities on the 
organisation’s businesses, strategy, 
and financial planning where such 
information is material
A. Describe climate-related risks and opportunities the 
organisation has identified over the short, medium and 
long term
Page 53
B. Describe the impact of climate-related risks and 
opportunities on the organisation’s businesses, strategy 
and financial planning
Page 53
C. Describe the resilience of the organisation’s strategy, 
taking into consideration different climate-related 
scenarios, including a 2ºC or lower scenario
Page 59
Risk management: Disclose how the 
organisation identifies, assesses and 
manages climate-related risks
A. Describe the organisation’s processes for identifying 
and assessing climate-related risks
Page 60
B. Describe the organisation’s processes for managing 
climate-related risks
Page 60
C. Describe how processes for identifying, assessing and 
managing climate-related risks are integrated into the 
organisation’s overall risk management
Page 60
Metrics and targets: Disclose 
the metrics and targets used 
to assess and manage relevant 
climate-related risks and 
opportunities where such 
information is material
A. Disclose the metrics used by the organisation to assess 
climate-related risks and opportunities in line with its 
strategy and risk management process
Page 60
B. Disclose Scope 1, Scope 2 and, if appropriate, Scope 3 
greenhouse gas (GHG) emissions, and the related risks
Page 60
C. Describe the targets used by the organisation to 
managed climate-related risks and opportunities and 
performance against targets
Page 60
IQE’s governance structure – climate-related focus
Governance Framework
IQE plc Board of Directors
ESG Committee
Remuneration Committee
Audit & Risk Committee
ESG Working Group
Executive Leadership Team
Group Risk Committee
Strategic Report
IQE Annual Report and Accounts 2024
51

Board’s oversight of climate-related risks 
and opportunities
IQE is committed to doing business in an ethical and 
transparent manner. In 2024 the Board and its 
Committees have been focused on guiding the 
Group through a challenging business environment 
and, where possible, aligning the Group’s ESG 
strategy with the Group’s short-term business needs. 
The Board has therefore focused the ESG strategy on 
minimising the Group’s long-term carbon impact 
through site consolidation and the climate-related 
opportunities arising from the growth in Power and 
Display markets. 
Throughout 2023 and 2024 the Board worked with 
management in the development of IQE’s Scope 1, 
Scope 2 and Scope 3 targets under the Science-
Based Targets initiative (‘SBTi’). The Board is pleased 
to see that the Group’s SBTi targets were approved 
and is committed to reducing the Group’s emissions 
to at least the expectations of the SBTi. The Board also 
supported management with our climate scenario 
analysis and the output of that work is set out in this 
report. 
Role of the Board and its Committees
The Board delegates the oversight of certain aspects 
of the Group’s ESG strategy to its Committees and, 
where not all of the Board is present at the 
Committee meeting, the Board receives verbal 
updates from the Committees at the next Board 
meeting as part of IQE’s overall governance 
arrangements relating to ESG, as summarised in the 
diagram on page 51.
The ESG Committee monitors and oversees the 
execution of IQE’s sustainability strategy, including the 
monitoring of the Group’s progress against our Net 
Zero and SBTi targets through its review of the Group’s 
emissions data. Further details on the ESG Committee 
can be found on page 82. The ESG Committee aims 
to meet twice a year and provides strategic guidance 
and scrutiny of management’s assessment and 
management of climate-related risks and 
opportunities, and reports to the Board following each 
meeting of the Committee.
The Audit & Risk Committee reviews the impact of 
climate change when considering the Group’s 
significant and emerging risks. Whilst the Group’s 
climate-related risks are emerging and less significant 
than some of the other risks that the Group has dealt 
with through 2024, the review and reporting of 
climate-related risks and opportunities is subject to 
specific requirements and standards and are therefore 
captured and reported to the Audit & Risk Committee. 
Please see page 76 for more detail on the Audit & Risk 
Committee and its activities during 2024. 
The Remuneration Committee considered the 
applicability of climate-related performance 
objectives for the long-term incentive awards made 
to Executive Directors in 2024 and, given the Group’s 
primary focus on improving financial performance, it 
was agreed that these were not currently appropriate 
performance measures for the Executive Directors. 
Whilst the Remuneration Committee will reconsider 
the applicability of climate-related performance 
measures in determining performance measures for 
2025, it is likely that the Remuneration Committee will 
continue to focus management’s performance on 
the Group’s short-term financial performance and 
the outcomes of the announced Strategic Review. 
Further information is provided in the Remuneration 
Committee Report on page 83.
Role of management
The Executive Leadership Team (‘ELT’) has established 
a Group Risk Committee comprising members of the 
ELT and other key management stakeholders within 
the business. The Group Risk Committee considers 
climate-related risks and opportunities as part of its 
overall consideration of the Group’s material risks and 
opportunities through the Group Risk Register, and 
reports to the Audit & Risk Committee. See page 62 
for further detail.
Jutta Meier, Chief Executive Officer and Chief  
Financial Officer, is the Board Director with ultimate 
responsibility for the Group’s climate change-related 
issues. Tom Dale, Chief People Officer and General 
Counsel, is the ELT member responsible for the 
delivery of IQE’s sustainability strategy and also chairs 
the Group Risk Committee. IQE has established a 
management working group which meets at least 
quarterly and comprises the Chief People Officer and 
General Counsel, Group HSE Director, and Head of 
Global Supply Chain and other stakeholders from 
across the Group as required on specific areas. The 
working group drives the day-to-day actions for IQE’s 
ESG agenda. Management reports to the Board 
through both the ESG Committee and the Audit & Risk 
Committee, as described above. 
Management has been focused in 2024 on 
understanding and developing IQE’s climate-related 
risks using a qualitative scenario analysis, and in 
achieving approval for IQE’s SBTi targets. Climate-
related opportunities continue to be considered as 
part of the Group’s strategy and near-term objectives, 
although management’s priority will continue to be 
the Group’s business performance in a challenging 
market environment. Climate-related risks will continue 
to be monitored and assessed and, given their 
nature, factored into the Group’s longer-term planning. 
TCFD Report continued
52
IQE Annual Report and Accounts 2024

The impact of risks was assessed across the short, medium and long-term, defined as:
Time horizon
Year from
Year to
Rationale
Short term
2024
2029
Aligns with our short-term financial planning and viability 
assessment period, current business strategy planning and 
near-term SBTi targets.
Medium term
2029
2034
Aligns with expected technology cycles relevant to the Group’s 
strategy.
Long term
2034
2050
Aligns with our long-term Net Zero commitment, long-term SBTi 
targets and will align with the useful life of many of the 
organisation’s assets. 
Strategy
Identified climate-related risks and 
opportunities 
In 2024, with the help of our external consultants, we 
completed a qualitative climate change scenario 
analysis providing a comprehensive, data-driven 
examination of the climate-related risks most likely to 
affect IQE’s facilities across our three critical regions 
and focusing on our sites in Cardiff/Newport in South 
Wales, North Carolina, USA and Hsinchu City in Taiwan. 
These sites were selected based on their geographical 
dispersion and importance to the Group, ensuring 
that we identified the range of climate-related risks 
most likely to impact our operations. 
Our climate change scenario analysis considered 
climate change using two diverse scenarios. Firstly, a 
low carbon pathway based on Representative 
Concentration Pathway (RCP) 4.5, aligning with a 
global temperature rise of approximately 1.5 degrees. 
This is the pathway which reflects scenarios in which 
global efforts to reduce carbon emissions are 
relatively successful. Secondly, a high carbon 
pathway based on an RCP of 8.5 which projects a 
more extreme global temperature increase of around 
4 degrees, reflecting a future where carbon emissions 
remain high, and mitigation efforts fall short. We 
intend to use this analysis to gain a deeper 
understanding of the climate-related risks that could 
disrupt our operations considering those two distinct 
global pathways. 
Risks were assigned one of three classifications 
based on the analysis:
1.	 Minimal – risks with a low likelihood of impacting 
IQE’s operations under weather warming pathway. 
These risks do not require any immediate action 
but are noted for potential future monitoring. 
2.	Moderate – risks that present a relative potential for 
climate-related impacts, though not yet requiring 
urgent intervention. These risks will be periodically 
monitored to ensure IQE can response swiftly if 
conditions worsen. 
3.	Significant – risks with a high likelihood of serious 
impacts on IQE’s operations, regardless of the 
warming scenario. These risks will be subject to 
further analysis by IQE’s risk management process 
to determine their financial materiality and to 
inform development of appropriate mitigation 
strategies. 
Strategic Report
IQE Annual Report and Accounts 2024
53

Our climate change scenario analysis used several 
key climate models and reports, including:
•	 Coupled Model Intercomparison Project Phase 5 
(CMIP5) projection from the World Climate 
Research Programme: Provides global climate 
projections based on multiple climate models and 
scenarios. 
•	 Shared Socioeconomic Pathways (SSP) 
projections from the World Bank: Incorporates 
socio-economic scenarios to project future climate 
risks and economic impacts. 
•	 UK Climate Projection 2018 (UKCP18) projection 
from the UK Climate Resilience Programme: 
Provides high-resolution climate projections 
specific to the UK, including the Cardiff-Newport 
region. 
•	 Climate Change Scientific Report from Taiwan’s 
National Science and Technology Council: Offers 
region-specific projections for Taiwan, particularly 
relevant to IQE’s Hsinchu City operations. 
•	 Fifth Assessment Report of the Intergovernmental 
Panel on Climate Change (IPCC): A comprehensive 
global review of climate science, impacts, and risks. 
•	 Localized Constructed Analogs (LOCA) from the 
US National Oceanic and Atmospheric 
Administration: Provides localised climate 
modelling based upon the CMIP5 projections. 
•	 ‘Net Zero by 2050’ report from the International 
Energy Agency (IEA): Examines pathways to 
achieving Net Zero emissions by 2050 and the 
associated transition risks. 
Several supplementary studies and reports were also 
consulted to ensure the broadest possible consensus 
from academic and scientific communities. The 
integration of these sources allows the analysis to 
incorporate a wide range of views and models, 
enhancing the reliability of conclusions. 
We assessed the transitional and physical climate 
risks which we determined to be most relevant to 
IQE’s business:
Transitional risks
Transitional risks are those associated with changes 
in the way markets operate, and which may result 
from legal or regulatory changes or consumer habits 
as we transition to a lower-carbon economy. 
•	 Energy security - As global energy markets shift 
towards low-carbon sources, there is a risk of 
supply shortages or rising energy prices. 
particularly under scenarios where renewable 
energy infrastructure developments lag demand. 
As a high-tech manufacturing company, IQE’s 
energy consumption is predominantly driven by 
electricity and so our assessment focused on 
market fluctuations and the availability of a stable 
renewable energy supply to meet our emissions 
reduction targets.
•	 Carbon pricing - The introduction of carbon taxes 
and pricing schemes could increase operational 
costs for IQE, especially considering our energy-
intensive manufacturing processes. Understanding 
how these costs may evolve under different 
emissions scenarios is crucial for financial planning 
and maintaining profitability. 
In addition to the key transitional risks identified, we 
also considered political risks and customer risks and 
have determined that these risks are currently of 
lower materiality to IQE. 
Physical risks
•	 Heat stress - Rising temperatures and more 
frequent heatwaves pose a risk to workforce 
productivity and could increase cooling costs for 
our manufacturing facilities.
•	 Sea levels rise - Facilities in or near coastal or 
low-lying areas face potential risks from projected 
sea level rises. This could lead to episodic flooding 
during high tides and storm surges, potentially 
damaging site infrastructure and site accessibility.
•	 Flood risks - Increased precipitation and more 
intense storm events elevate flood risks for facilities. 
Flooding damage could damage IQE’s 
infrastructure, disrupt operations and impact 
supply chain continuity.
In addition to the key physical risks identified, the 
assessment reviewed several other minor physical 
risks that could affect IQE’s operations, including 
wildfire and drought, though these pose lower levels 
of direct threat across our regions.
We have reported only on the risks which we have 
assessed with a moderate or significant classification 
in the tables below. 
TCFD Report continued
54
IQE Annual Report and Accounts 2024

Transitional risks
Risk
Risk description
TCFD 
category
Potential impact
Mitigating actions
Time 
horizon
Metrics & targets
Energy 
Security
As global energy 
markets shift towards 
low-carbon sources, 
there is a risk of supply 
shortages or rising 
energy prices, 
particularly under 
scenarios where 
renewable energy 
infrastructure 
developments lag 
demand
Policy & 
Legal/
Reputation
The Group’s site in 
Hsinchu, Taiwan is 
subject to significant 
climate-related risks 
from Energy Security. 
Taiwan’s energy supply 
is heavily dependent 
on imported fossil fuels, 
making it highly 
susceptible to global 
fuel price fluctuations, 
which may therefore 
result in an increase in 
IQE’s operating costs. 
Taiwan also appears to 
have limited access to 
stable renewable 
energy sources which 
may hinder its energy 
security and its 
proposed transition to 
Net Zero. The required 
investment in 
renewable energy 
sources may raise 
energy prices, and 
therefore IQE’s 
operating costs. 
We expect the Taiwan 
government to 
implement the 
investments required 
to meet its stated 
renewable energy 
targets, which include 
being Net Zero by 
2050. The 
semiconductor 
industry is a crucial 
part of Taiwan’s 
economy, and we 
would therefore 
expect that the 
industry will be 
appropriately 
supported through 
this transition phase. 
When available, the 
Group will also look to 
capitalise on 
renewable energy 
contracts. 
Medium 
to Long
Scope 1 and 
Scope 2 
emissions from 
the Taiwan site
The Group’s site in 
Greensboro, North 
Carolina is subject to 
moderate climate-
related risks from 
Energy Security. While 
North Carolina has 
made strides in 
renewable energy, with 
26% of its energy now 
sourced from 
renewables, it is our 
assessment that the 
state’s Clean Energy 
Plan lacks concrete 
policies to reach its 
target of 70% 
renewable energy by 
2030. This leaves some 
uncertainty in future 
energy availability and 
cost stability, 
potentially affecting 
IQE’s operating 
expenses in its switch 
to renewable energy. 
Recent political 
changes in the US, and 
the state, may result in 
adjustments to North 
Carolina’s renewable 
energy plans.
We expect policy 
developments in 
North Carolina to 
provide the 
necessary financial 
support, regulatory 
framework and 
technological 
advancements to 
achieve the clean 
energy targets. 
Medium 
to Long
Scope 1 and 
Scope 2 
emissions from 
the North 
Carolina site
Strategic Report
IQE Annual Report and Accounts 2024
55

TCFD Report continued
Transitional risks
Risk
Risk description
TCFD 
category
Potential impact
Mitigating actions
Time 
horizon
Metrics & targets
Carbon Pricing
The introduction of 
carbon taxes and 
pricing schemes could 
increase operational 
costs for IQE, especially 
in our energy-intensive 
manufacturing 
processes. 
Understanding how 
these costs may evolve 
under different 
emissions scenarios is 
crucial for financial 
planning and 
maintaining 
profitability. 
Policy & 
Legal
The Group’s site in 
Hsinchu, Taiwan is 
subject to moderate 
risks relating to carbon 
pricing. Taiwan has 
recently introduced a 
carbon fee system 
which could impose 
additional financial 
costs for IQE, especially 
if these fees rise over 
time. 
We expect to secure 
renewable energy 
contracts when 
available to hedge 
against future rises in 
energy costs. We will 
also work closely with 
the Ministry of 
Environment to 
ensure that IQE has 
the opportunity to 
benefit from any 
beneficial rates 
aligned with meeting 
carbon reduction 
targets. 
Medium 
Energy prices in 
Taiwan
Supply chain 
risks
Supply chain risks 
relating to: (a) 
escalating costs from 
rising demand for rare 
earth materials like 
gallium; or (b) extreme 
weather events 
disrupting the supply of 
essential materials and 
components, whether 
nationally or 
internationally. 
Policy & 
Legal, 
Market
Increased pricing from 
suppliers as they seek 
to pass on rising costs 
and increased working 
capital levels to hold 
sufficient inventory. 
Multi-sourcing from 
diverse geographical 
areas, where possible, 
appropriate inventory 
levels to mitigate 
short term 
fluctuations in supply, 
long term contracts 
with key suppliers. 
Medium
Working Capital 
Levels relating 
to substrates 
and other raw 
materials
56
IQE Annual Report and Accounts 2024

Physical risks 
Physical risks are the exposure of our assets or value chain to physical hazards caused by the effects of 
climate change. We have considered three key physical risks relating to Heat Stress, Flood Risk and Tidelines.
Physical risks
Risk
Risk description
TCFD 
category
Potential impact
Mitigating actions
Time 
horizon
Metrics & 
targets
Heat Stress
Rising temperatures 
and more frequent 
heatwaves pose a risk 
to workforce 
productivity and could 
increase cooling costs 
for our manufacturing 
facilities.
Acute/
Chronic
The Group’s site in 
Greensboro, North 
Carolina is subject to 
a significant risk 
relating to Heat Stress. 
Rising temperatures 
are expected to 
significantly increase 
the number of 
high-heat days, which 
may elevate cooling 
demands and 
operating costs, 
impacting both 
energy consumption 
and workforce 
productivity. The 
Greensboro site will 
need to implement 
additional adaptive 
measures to maintain 
safe and comfortable 
working environment. 
Implement 
additional cooling 
capacity to keep 
manufacturing 
equipment within 
operating limits and 
to maintain a 
comfortable working 
environment.
Long
Number of 
days 
operations are 
disrupted due 
to extreme 
temperatures
Revenue loss 
from site 
disruption
Insurance 
premiums:
The Group’s site in 
Hsinchu, Taiwan, is 
subject to a moderate 
risk relating to Heat 
Stress. Rising 
temperatures are 
expected to increase 
the number of heat 
stress days, which 
may impact 
operational efficiency 
and workforce 
productivity, and 
require additional 
adaptive measures to 
maintain safe and 
comfortable working 
environments. Higher 
cooling costs relating 
to air conditioning will 
increase operational 
costs. 
Implement 
additional cooling 
capacity to keep 
manufacturing 
equipment within 
operating limits and 
to maintain 
comfortable working 
environment. 
Long
Number of 
days 
operations are 
disrupted due 
to extreme 
temperatures
Revenue loss 
from site 
disruption
Insurance 
premiums:
Strategic Report
IQE Annual Report and Accounts 2024
57

Physical risks
Risk
Risk description
TCFD 
category
Potential impact
Mitigating actions
Time 
horizon
Metrics & 
targets
Flood Risk
Increased precipitation 
and more intense 
storm events elevate 
flood risks for facilities. 
Flooding damage 
could damage IQE’s 
infrastructure, disrupt 
operations and impact 
supply chain continuity.
Acute
The Group’s site in 
North Carolina is 
subject to potentially 
significant riverine and 
surface flooding, 
particularly under the 
higher carbon 
pathway, due to 
increased rainfall and 
extreme precipitation 
days and the proximity 
of the East Fork Deep 
River. 
IQE’s sites are 
appropriately 
insured for asset/
property damage as 
well as business 
interruption. North 
Carolina is an area 
with significant 
social, economic 
and political 
importance, 
particularly for the 
semiconductor 
industry, and we 
would expect local 
or national 
intervention to 
address the risks of 
flood. In addition, IQE 
will consider the 
long-term viability of 
the site at the 
appropriate 
junctures in its lease.
Long 
term
Number of 
days 
operations are 
disrupted due 
to flooding 
events
Revenue loss 
from site 
disruption
Insurance 
premiums
Sea Level Rise
Facilities in or near 
coastal or low-lying 
areas face potential 
risks from projected 
sea level rises. This 
could lead to episodic 
flooding during high 
tides and storm surges, 
potentially damaging 
site infrastructure and 
site accessibility. 
Acute
The Group’s sites in 
Cardiff and Newport, 
South Wales, faces 
potentially moderate 
risks relating to sea 
level rises. Projections 
indicate that sea level 
rises could place parts 
of Cardiff within the 
limits of future tideline 
boundaries, 
heightening risk of 
tidal flooding, 
particularly during 
extreme weather 
events or high tides. 
Whilst the Newport site 
is not directly 
vulnerable to rising 
sea levels, potential 
access-related risks 
exist because the local 
road and rail network 
could be impacted, 
affecting supply chain 
continuity and 
employee commutes 
during periods of high 
tide or coastal 
flooding.
We would expect 
substantial 
government 
intervention to 
mitigate the impacts 
of sea level rises., 
including the 
construction of flood 
defences, seawalls 
and storm surge 
barriers, aligned with 
urban planning 
policies. 
Long 
term
Number of 
days 
operations are 
disrupted due 
to flooding 
events
Revenue loss 
from site 
disruption
Insurance 
premiums
TCFD Report continued
58
IQE Annual Report and Accounts 2024

Opportunities
Opportunities
Opportunity description
TCFD 
category
Potential impact
Mitigating actions
Time 
horizon
Metrics & 
targets
Increased demand 
for products 
enabling improved 
efficiency and 
clean energy
The transition to a 
low-carbon economy 
requires significant 
investment in more 
sustainable 
technologies and 
product solutions. GaN 
power products, core 
to IQE's strategy, will 
enable Innovation and 
development in areas 
such as batteries and 
chargers.
Market, 
Products 
and 
Services, 
Resource 
Efficiency
Financial: overall 
revenue growth from 
increased sales of 
GaN-based products.
Operations: decrease 
in Scope 3 GHG 
emissions.
N/A
Short
Revenues from 
GaN-based 
products.
Impact of climate-related risks and 
opportunities
We have identified climate change as a principal risk 
for IQE but note that the most significant impacts are 
likely to be felt over the long-term, beyond current 
planning cycles. The transitional and physical risks set 
out on pages 55 to 58 provide an explanation of the 
impact across IQE’s key geographical areas of 
operation and our largest manufacturing sites, and 
the nature of that expected impact. 
Climate change also represents a source of material 
opportunity for IQE. Our principal opportunities relate 
to the greater efficiencies provided by GaN power 
semiconductors and our existing R&D expenditure 
and product roadmap are already well aligned to 
these opportunities and will have a key role in the 
Group’s strategy over the coming years. Power 
semiconductors address structurally growing 
markets which have a key role to play in 
decarbonisation and addressing the impacts of 
climate change. The Group is well placed to support 
our customers with the impact of climate change 
and the transition to a lower-carbon economy due to 
the performance and efficiency benefits provided by 
compound semiconductors.
Resilience of IQE’s strategy to climate-related 
scenarios 
The scenarios used in our climate scenario analysis 
are explained in more detail above and have been 
selected to understand the range of possible 
outcomes on the Group. We believe, given the current 
assessment of risks that may impact the Group and 
our current mitigation plans, that our climate risk 
exposure is moderate in the medium to long term. We 
do not believe that any significant additional capital 
expenditure or changes to business strategy are 
required as a result of predicted climate changes 
and we can incorporate climate risks into our 
business-as-usual activities. The Board does, 
however, remain aware of the ever-changing risks 
attached to climate change and will regularly assess 
these risks against judgements and estimates made 
in the preparation of the Group’s financial 
statements, and against the Group’s other principal 
risks.
IQE's strategy is well aligned to addressing global 
technology challenges. Our products address the 
Automotive and Industrial sectors where electric 
vehicles, autonomous driving technology and power 
systems demand advanced semiconductors for 
better performance and energy efficiency. The 
proliferation of artificial intelligence is driving growth 
across a wide variety of Communications, 
Infrastructure and Security applications by enabling 
faster data processing and more efficient network 
management, including data centres, fibre networks 
as well as the expansion of 5G/6G wireless 
infrastructure. Advanced power semiconductors will 
be required to mitigate the energy usage driven by 
artificial intelligence, and our connect and sense 
products will be required to address the transfer and 
management of data. 
Strategic Report
IQE Annual Report and Accounts 2024
59

Whilst we have more work to do in in assessing the 
financial implications of the risks identified in this 
report, the Group’s currently considers that climate-
related risks are emerging and not currently material 
to the achievement of the Group’s strategy. 
The outputs of our climate change scenario analysis 
work is on pages 59 to 60. The limitations of this 
scenario analysis are:
•	 Uncertainty in climate models – our scenario 
analysis work draws from a range of studies that 
use different climate models, each with their own 
assumptions and methodologies. Often these 
provide relatively high level global and regional 
forecasts. There is inherent uncertainty in how 
climate risks will manifest at a local level, 
particularly as global responses to climate change 
evolve.
•	 Variability in risk outcomes – areas identified as 
having significant climate-related risks may not 
experience impacts as severe as projected, 
depending on how climate change unfolds. 
Conversely, areas identified as low risk could see 
risks escalate due to unforeseen factors, such as 
shifts in regulatory frameworks, technological 
advances, or socio-economic developments. 
•	 Dynamic nature of risk – climate-related risks are 
dynamic and their likelihood and potential impact 
may vary over time. 
The Group believes that its operations are resilient 
against potential impacts of climate risks and that it 
is well placed to be able to support our customers 
with the impact of climate change and the transition 
to a lower-carbon economy. We will do this through 
the performance and efficiency benefits provided by 
compound semiconductors. 
Risk management
Identifying and assessing climate-related risks, 
and integration with IQE’s overall risk 
management
The assessment of climate-related risks and 
opportunities is integrated into IQE’s wider risk 
management processes (see pages 62 to 67) which 
allows for climate-related risks to be assessed 
against our other principal and emerging risks. The 
chart on page 63 shows the relative importance of 
our climate-related risks against our principal risks, 
and we have taken the approach of qualitatively 
aggregating our identified climate-related risks into a 
single risk item for ease of identification and 
comparison against our principal risks. The 
identification and assessment of our climate-related 
risks is supported through our external consultants 
and internal stakeholders, such as our supply chain, 
health & safety and legal functions. The contribution 
of several internal and external stakeholders allows us 
to identify a range of potential threats and any 
emerging threats, allowing additional preparedness 
to support decision making. 
We intend to further analyse our ‘Moderate’ and 
‘Significant’ risks using quantitative methodologies to 
further our assessment of the potential financial 
implications and any required adjustments to our 
mitigation strategies that should be developed to 
address and minimise these impacts. We will also 
assess our climate-related physical risks in the 
context of our existing disaster recovery plans and 
business continuity arrangements. Given the nature 
of IQE’s business where product qualification 
requirements can be prohibitive in quickly transferring 
production from one manufacturing site to another, 
the Group will need to develop appropriate 
contingencies and plans to address the risks of 
climate-related disruptions. As noted above and in 
the Risk Report on page 64, the Group’s assessment is 
that climate-related risks are minor in the short to 
medium term and moderate over the longer term.
Managing climate-related risks
Against a challenging business backdrop, this year 
we have made good progress in identifying the key 
climate-related risks that are likely to impact IQE. 
Climate-related risks were classified as either 
‘Minimal’, ‘Moderate’ or ‘Significant’ and those 
classified as ‘Moderate’ or ‘Significant’ were included 
in our group risk register and reported using wider risk 
management processes identified on pages 62 to 67. 
This process allows the proper prioritisation of risks 
and ensures that the significance of climate-related 
risks is considered in relation to our non-climate-
related risks. The Group’s approach to a risk is 
determined by the risk score through our probability 
and impact matrix, which in term influences the 
required mitigation actions required to bring the risk 
score in line with the Group’s tolerances. 
The Group’s climate-related risks and opportunities 
are outlined on pages 55 to 59. 
Metrics and targets
Our metrics and targets
In 2022 we made our commitment to achieve Net 
Zero carbon neutrality across our operations by 2050 
and we achieved certification for our Scope 1, Scope 2 
and Scope 3 targets from the SBTi in October 2024. 
We disclose our metrics relating to the reduction in 
greenhouse gas emissions (GHGs) in line with the 
GHG Protocol A Corporate Accounting and Reporting 
Standard. Our targets for GHGs are disclosed in the 
environment section on page 49 and are in line with 
our SBTi commitments and we plan to develop the 
costed actions to achieve these targets. 
We also disclose a wide range of metrics to help us 
track our progress across a number of climate-
related areas. This includes electricity consumption, 
GHG emissions and water usage, as identified in the 
environment section and SECR reporting on page 49.
The risk and opportunities table on pages 55 to 59 
provides further information on the metrics and 
targets we have identified so far and how these are 
relevant to the tracking and mitigation of those risks 
and opportunities. 
TCFD Report continued
60
IQE Annual Report and Accounts 2024

IQE Annual Report and Accounts 2024
61
Strategic Report

Risk management
We recognise risk as an inherent part of our business 
operations and we approach risk with the same 
deliberate, strategic consideration as other aspects 
of the business. The effective management of risk 
contributes significantly to the successful delivery of 
the Group’s strategic plans and objectives. The Group 
Risk Committee monitors the risk environment, in 
particular those risks identified as principal or 
emerging risks on a regular basis, and the Audit & Risk 
Committee reviews the Group’s financial controls and 
systems that identify, assess, manage and monitor 
Our approach and 
appetite for risk
financial risks, and other internal control and risk 
management systems. Please see page 76 for further 
information on the Group’s review of its financial 
controls. The Board is responsible for the overall 
stewardship of risk management and internal control.
The Group Risk Committee considers risks using a 
top-down and bottom-up approach, with the 
committee members obtaining input from around 
the business, which together with oversight and 
support from the Audit & Risk Committee and the 
The Group manages its 
principal and emerging 
risks through internal 
subject matter 
expertise and internal 
processes, and relies 
on the oversight of its 
Group Risk Committee, 
the Audit & Risk 
Committee, the ESG 
Committee and the 
Board for broader 
review and governance 
of the Group’s risks. The 
Group does not 
currently have a 
dedicated internal 
audit function but key 
risk-related functions, 
such as Finance, Health 
& Safety and Trade 
Compliance, are 
managed at a Group 
level and conduct 
audit of site-based 
activities.
Board
Reports to
Audit & Risk Committee
Risk Reviews
•	Regular reviews of Group’s principal risks
Risk Assurance
•	Specialist functions setting policies and 
performing reviews
Risk Register
•	Group risk register maintained and reviewed by 
Group Risk Committee
•	Sites, business units and support functions provide 
specific risk registers for review
Accountability
Works with
Group Risk Committee
Bottom-up reviews
Operating sites, business units, support functions, R&D
62
IQE Annual Report and Accounts 2024

Board, creates an effective system for monitoring, 
planning and developing a Group-wide culture and 
approach to risk. The Group Risk Committee 
periodically reports to the Audit & Risk Committee on 
the Group’s principal risks and the mitigating actions 
being taken to address those risks.
In 2024, the Group continued the integration of its 
processes for the identification, evaluation and 
reporting of climate-related risks and opportunities, 
as set out in the Task Force on Climate-related 
Financial Disclosures statement on pages 50 to 60. 
The Group was also rightly focused on the financial 
impacts of the continuing softness in the broader 
semiconductor industry market and the impact of 
macroeconomic factors and global conflict, along 
with geopolitical tensions with the potential to impact 
the supplier of critical raw materials including 
Gallium, Antimony and Germanium. 
The Group Risk Committee is responsible for the 
maintenance and regular updating of a risk register 
which articulates the Group’s principal risks and the 
actions being taken to address those risks. The risk 
register is in a standardised format and includes the 
likelihood of a risk materialising, and an assessment 
of that risk both before and after the Group’s 
mitigation activities.
Principal risks and uncertainties
We have mapped the Group’s principal risks and 
uncertainties to a probability and impact matrix to 
assist meaningful comparison of the relative 
importance of those principal risks and uncertainties. 
We have then included arrows to indicate the change 
in the risk in comparison to the prior year’s 
assessment. We have used the residual risk for the 
purposes of this mapping exercise, being the 
probability of the risk occurring and the potential 
impact it may have, taking into account any 
mitigating actions that will be implemented. The most 
significant risks are shown in the top right quadrant of 
the chart.
IMPACT
PROBABILITY
Strategic Report
IQE Annual Report and Accounts 2024
63
SEVERE
7
Information 
technology
1
Health, safety, 
security and 
environment
2
Capital and 
liquidity
MAJOR
8
Business 
environment
9
Supply of 
raw materials
MODERATE
5
International 
trade compliance
6
Intellectual 
property
4
Loss of key people
MINOR
3
Climate change
NEGLIGIBLE
RARE
UNLIKELY
POSSIBLE
LIKELY 
ALMOST CERTAIN

1  Health, Safety, Security and Environment
 
 
Context
The Group operates a number of manufacturing sites which utilise potentially harmful 
gases, materials and equipment.
Risk
•	 Major incident at an IQE site 
Possible impact
•	 Injuries and potential loss of life
•	 Environmental harm (MATTE)
•	 Loss or suspension of required permits
•	 Disruption to operations and business activities
•	 Reputational damage
Mitigation
•	 Health and safety strategy aligned with the business’ cultural development
•	 Strong internal controls, including technical and engineering controls, focussing on 
process safety methodologies
•	 Focus on process safety, barrier management and layered protection
•	 Continuous improvement of management systems
•	 Continuous auditing and monitoring of productions processes and equipment
Change in the year
•	 No change
2  Capital and liquidity
 
 
Context
The Group’s financial strength has been severely impacted by the prolonged 
semiconductor industry-wide downturn and inventory correction cycle across key 
sectors, broader macroeconomic factors and the delayed market adoption of new 
technologies.
Risk
•	 Insufficient liquidity for day-to-day or to support the execution of IQE’s strategy
Possible impact
•	 Damage to business operations
•	 Breach of banking covenants
•	 Financial loss
•	 Reputational damage
Mitigation
•	 Completion of convertible loan note fundraising to provide additional short-term 
liquidity
•	 Strategic review to realise value not currently reflected in the Group's market 
capitalisation and to ensure the Group has a strong capital position for future 
investment in its core operations
•	 Five-year plan with scenario modelling 
•	 Annual Group and departmental budgets to define the envelope of affordability and 
direct the capital management and liquidity management strategy of the business
•	 Monthly cash flow forecasts
•	 Budgetary, expenditure and cost controls
•	 Procurement policy
•	 Delegated authority policy and limits
Change in the year
•	 No change
3  Climate change
 
 
Context
Long-term climate-related risks to IQE’s people, operations and financial performance
Risk
•	 Physical risks relating to heat stress, flood risk and sea level rises and transitional risks 
relating to energy security, carbon pricing and supply chain disruption
Possible impact
•	 Disruption to the Group’s operations
•	 Disruption to the operations of our customers and suppliers
•	 Increased production and transportation costs
•	 Investment to mitigate climate-related risks
Mitigation
•	 Development of sustainable supply chain strategy 
•	 Development of Scope 1 and Scope 2 emissions reduction strategy 
•	 Working with local and national government for required investments to mitigate 
climate-related risks 
•	 Alignment of IQE’s long term facility expansion and maintenance activities to 
address climate-related risks
Change in the year
•	 Decreased risk
Risk management continued
64
IQE Annual Report and Accounts 2024

4  Loss of key people
 
 
Context
IQE’s people are fundamental to its future success and IQE operates in a highly 
competitive industry for talent. Cost optimisation initiatives in recent years have 
resulted in a lean workforce with some areas particularly stretched. 
Risk
•	 Loss of key human capital capabilities 
•	 Inability to attract talent
Possible impact
•	 Inability to meet business demands
•	 Wage inflation
Mitigation
•	 Development and maintenance of a positive company culture and focus on 
employee wellbeing
•	 Regular workforce planning including talent reviews, with a focus on high potential, 
high risk and single points of failure
•	 People development and retention plans
•	 Compensation to market reviews
Change in the year
•	 Increased risk
5  International trade compliance
 
 
Context
IQE operates across multiple jurisdictions in a highly regulated industry impacted by 
extra-jurisdictional controls on products, software and technology.
Risk
•	 Failure to comply with international export control laws
Possible impact
•	 Significant regulatory fines and penalties
•	 Financial loss
•	 Damage to reputation
Mitigation
•	 Group-wide technology control plans
•	 Appropriate separation of duties and SME auditing
•	 Employee training 
•	 Group-wide policies and processes to identify end use and end user
•	 Development of products and technology that are not impacted by international 
export controls
Change in the year
•	 No change
Decreased risk
No change to risk
New risk
Increased risk
Trend
Key: Probability
Rare
Unlikely
Possible
Likely
Almost certain
Impact
Negligible
Minor
Moderate
Major
Severe
Strategic Report
IQE Annual Report and Accounts 2024
65

Risk management continued
6  Intellectual property
 
 
Context
The semiconductor industry is highly competitive with competing intellectual property 
rights in the major jurisdictions.
Risk
•	 IQE infringes the intellectual property rights of a third party
•	 A third party infringes, or without authorisation obtains, IQE’s intellectual property 
rights
Possible impact
•	 Loss of competitive position
•	 Financial loss
•	 Significant legal costs
•	 Reputational damage
Mitigation
•	 Implementation of robust terms and conditions to protect IQE’s intellectual property 
rights
•	 Employee training on intellectual property rights and protecting confidential information
•	 Implementation of intellectual property strategies aligned to the Group’s business 
strategy
Change in the year
•	 No change
7  Information technology & Cyber Security
 
 
Context
The Group primarily functions using its information technology systems.
Risk
•	 Cyber attack on the Group’s IT infrastructure
•	 Ransom-ware/spread of viruses or malware
•	 Legacy system failure or cessation
Possible impact
•	 System failure, data loss and sustained disruption to production operations
•	 Loss of business-critical data
•	 Financial and reputational damage
Mitigation
•	 Technical protection through active scanning and monitoring of the Group’s internal 
and external network
•	 User training to improve cyber security knowledge
•	 Periodic testing
•	 Upgrading of aged IT infrastructure and devices
•	 Network separation
Change in the year
•	 No change
8  Business environment 
 
 
Context
Demand from the Group’s current and future customer bases may be reduced if there 
is a contraction in investment, , changes in expected customer demand, disruption 
due to the geopolitical environment and/or the imposition of import tariffs or other 
barriers to free trade.
Risk
•	 Lower demand for the Group’s products
•	 Increases in key cost drivers such as people, energy and raw materials
•	 Undermining of IQE’s diversification strategy into power and display markets
•	 Imposition of tariffs reduces IQE’s competitiveness and/or causes disruption to 
global supply chains
Possible impact
•	 Decrease in sales volumes
•	 Increased cost of production leading to a reduction in margins if not offset by 
sufficient price increases
•	 Failure to achieve longer-term business targets
Mitigation
•	 Proactive management of inflationary pressures through cost control and customer 
management
•	 Strategic focus on key growth markets in power and display
•	 Focus on delivering product quality excellence to maintain IQE's position in supply chain
•	 Product, market and customer diversification
•	 The Group’s direct product and raw material input categories are currently 
unaffected by recent global tariff announcements 
•	 Contractual terms that protect IQE’s pricing/margin
Change in the year
•	 No change
66
IQE Annual Report and Accounts 2024

9  Supply of raw materials
 
 
Context
Geopolitical tensions have resulted in a specific risk for IQE relating to the supply of 
critical compound semiconductor raw materials such Gallium, Antimony and 
Germanium, where current supply chain routes are reliant on exports from China.
Risk
•	 Increased pricing for raw materials and substrates incorporating raw materials
•	 Supply chain disruption due to the imposition of export controls and/or global supply 
shortages
Possible impact
•	 Reduction in profit margin if cost increases cannot be passed on to customers
•	 Manufacturing disruption due to supply shortages, potentially resulting in reduced 
revenue
Mitigation
•	 Inventory building of key raw materials
•	 Working with suppliers to ensure inventory build of substrates
•	 Engagement with relevant government bodies and alternative material suppliers, 
specifically suppliers outside of China 
•	 Long term supply agreements to mitigate pricing fluctuations
Change in the year
•	 New principal risk
Global conflict
The ongoing conflicts between Russia and Ukraine and in Gaza are demonstrative of the increasingly 
contested geopolitical environment. IQE has been, and will continue to be, impacted by higher energy 
prices which are, in part, a result of the conflict between Russia and Ukraine. The Group has not been 
materially impacted by the conflict in Gaza but continues to monitor the impact of the ongoing conflict. 
Higher inflation and the higher nominal interest rates used by national governments to combat inflation 
are expected to have an impact on IQE consistent with the effects felt globally.
Decreased risk
No change to risk
New risk
Increased risk
Trend
Key: 
Likelihood
Low
Medium
High
Impact
Low
Medium
High
Strategic Report
IQE Annual Report and Accounts 2024
67

Viability statement
Viability statement
As required by provision 31 of the UK Corporate 
Governance Code 2018, the Board has assessed the 
prospects of the Company over a five-year period, 
considering the Group’s current financial position, 
business strategy and the results of it performing a 
robust assessment of emerging and principal risks 
(see pages 63 to 67). 
The Board believes that a five-year period is an 
appropriate time frame for assessing the Group’s 
longer-term viability. This period is covered by the 
Group’s strategic planning horizon and considers the 
nature of the Group’s principal risks. The Board 
believes that a five-year period reflects a period over 
which information and forecasts concerning demand 
for the development, qualification and production of 
compound semiconductor wafers, is considered 
reasonably reliable.
The Board’s key criteria for considering the Group’s 
viability is the maintenance of a net cash position or 
the ability to operate within agreed debt 
arrangements, demonstrating that the Group would 
be able to meet its liabilities as they fall due.
Whilst all of the risks identified on pages 63 to 67 of 
this Annual Report could have an impact on the 
Group’s performance, in making this assessment, the 
Directors have considered the following issues which 
could threaten the business model, future 
performance, solvency and liquidity of the Group and 
which, given the magnitude of their potential impact, 
the Board considers appropriate for the purposes of 
this assessment:
•	 The Group’s current trading performance, which 
has remained subdued as the Group continues to 
experience weak customer demand and low 
customer orders following the global 
semiconductor industry downturn
•	 The Group’s liquidity position, including its ability to 
comply with financial covenants contained in 
existing debt funding facilities and the ability to 
renew, refinance or repay facilities that are due to 
expire within the five-year period
•	 The Group’s ability to execute its strategy, including 
the divestment of Group assets to repay existing 
debt funding facilities and provide sufficient 
funding to invest into core operations and the 
diversification of the business into high growth 
gallium nitride (‘GaN’) markets  
The Group’s subdued trading performance, which 
has resulted in a loss for the year of £38,178,000 and a 
significant increase in net debt (excluding lease 
liabilities and fair value gains/losses on derivative 
Long-term viability
instruments) to £18,800,000, combined with a slower 
than anticipated recovery in key market sectors has 
prompted the Directors to initiate a Strategic Review 
of the Group and take immediate actions to secure 
short-term financing to strengthen the Group’s 
liquidity position. 
Short-term liquidity and funding actions include the 
formal waiver obtained pre-year end of the 
31 December 2024 financial covenant tests 
applicable to the Group’s £28,000,000 multi-currency 
revolving credit facility (‘RCF’), the successful 
negotiation of a Deed of Amendment and 
Restatement to the RCF to amend applicable 
financial covenants and, the successful £18,000,000 
convertible loan note fund raise completed on 
10 March 2025, to provide the Group with additional 
short-term liquidity whilst the Directors complete their 
Strategic Review.
The Directors, as part of the Strategic Review, plan to 
raise sufficient cash from the divestment of Group 
assets to repay the Group’s RCF and the convertible 
loan notes and ensure that the Group has a strong 
capital position to further invest in its core operations. 
In the first instance, this plan includes divestment 
options for an IPO or sale of the Group’s Taiwan 
operations where a successful divestment, at a value 
commensurate with the Directors expectations, would 
raise sufficient cash to repay the RCF, convertible 
loan notes and provide sufficient cash to invest into 
core operations and the diversification of the 
business into high growth GaN markets.
Alongside the immediate steps taken to strengthen 
the liquidity position of the Group, and the ongoing 
steps to divest Group assets to deliver a strong and 
sustainable capital position for the future, the 
Directors have also taken actions to rationalise cost, 
strategically reposition and consolidate the Group’s 
manufacturing operations and invest in capacity and 
technology asset development to support 
diversification into high growth GaN related markets. 
•	 Cost rationalisation has primarily focused on labour 
savings, including restructuring of the Executive 
Leadership Team (‘ELT’), operational efficiencies as 
the focus of manufacturing operations is 
repositioned and ongoing targeted reductions in 
areas of discretionary expenditure across the 
Group.
•	 Repositioning and consolidation of the Group’s 
manufacturing operations has focused on 
completing the closure of the Group’s Pennsylvania 
(US) facility, with the resultant consolidation of 
molecular beam epitaxy (MBE) capacity into the 
68
IQE Annual Report and Accounts 2024

Group’s North Carolina (US) site, delivering 
improved production efficiency and margins in the 
short to medium term, and the commencement of 
the consolidation of the Group’s South Wales 
operations into its Newport (UK) site, delivering 
improved production efficiency and margins in the 
medium to long term. 
•	 Capital investment in GaN manufacturing capacity 
at the Group’s sites in Newport (UK) and 
Massachusetts (US) provides capacity for growth 
that is aligned with the Group’s strategy and its 
technology and product roadmap. This ongoing 
investment in GaN capability, including the 
completed commissioning of new GaN reactors, will 
underpin the Group’s diversification into high 
growth advanced display and power electronics 
segments of the compound semiconductor market. 
Stress tests and scenario analyses to determine the 
Group’s viability have been performed as part of the 
assessment. In performing these tests, the Group 
considered a severe but plausible downside scenario 
in which the Group’s business performance is 
adversely affected by a slower recovery in the 
broader semiconductor industry aligned with its 
going concern review and a reverse stress test 
extended over the longer five-year period. This 
assessment, including each individual stress test and 
scenario analysis, takes account of the actions 
implemented by the Directors to strengthen the 
Group’s balance sheet and assumes that the 
ongoing Strategic Review is successfully concluded, 
with the Group raising sufficient funding from the 
divesture of assets to repay existing debt and provide 
sufficient funding to invest into core operations in a 
manner aligned with the five-year plan. The Directors 
have signed off on a plan to grow and diversify 
revenues over the five-year period and are confident, 
based upon the current level of external interest, that 
the Group will be successful in the divestment of its 
Taiwanese operations and/or the sale of other Group 
assets or operations that is required to fund the plan.
The Directors acknowledge that there can be no 
certainty that the divestment of Group assets or 
operations can be concluded to repay existing debt, 
or, that existing debt can be refinanced prior to its 
expiry date if the Group is unsuccessful in divesting 
assets that are sufficient to repay debt and fund the 
Directors plan for the five-year period.
On the basis that the Directors expect to successfully 
divest Group assets or operations at valuations that 
are sufficient to repay debt and fund the Directors 
plan for the five-year period, the Directors have a 
reasonable expectation that the Company will be 
able to continue in operation and meet its liabilities 
as they fall due over the five-year period to 
31 December 2029.
This Strategic Report has been approved by 
the Board and signed on their behalf by:
Mark Cubitt
Executive Chair
12 May 2025
Strategic Report
IQE Annual Report and Accounts 2024
69

Board of Directors
Leading the way
Mark Cubitt 
(63)
Executive Chair
Jutta Meier 
(59)
Chief Executive Officer & Chief 
Financial Officer
Carol Chesney  
FCA (62)
Senior Independent Director
Mark Cubitt joined the IQE Board on 
8 October 2024 and took over as 
Executive Chair on 29 October 2024.
Mark is an accountant and has been the 
Non-Executive Chair of both AIM-listed 
Beeks Financial Cloud Group plc since 2016 
and also Concurrent Technologies plc 
since 2020. Previously, Mark was the CFO of 
Wolfson Microelectronics Plc for eight 
years from 2007 to 2014, and also 
Non-Executive Chair of Superglass 
Holdings Plc in 2015 and 2016. He has also 
served as VP of Finance at Jacobs 
Engineering and was Finance Director of 
Babtie Group Ltd until the sale of the 
company to Jacobs Engineering in 2004, 
when he then took up a wider finance role 
within Jacobs.
Jutta Meier joined IQE as Chief  
Financial Officer in January 2024  
and became Chief Executive Officer  
on 29 October 2024. 
Jutta is an experienced finance executive 
who has held senior positions at global 
semiconductor companies for over 
25 years. She joined IQE in January 2024 
from Intel Corporation, where she served 
as a Senior Finance Director at Intel 
Foundry Services, supporting Intel’s 
Foundry business transformation. 
Prior to joining Intel, Jutta served as Vice 
President of Finance at GlobalFoundries 
Inc, a global leader in semiconductor 
manufacturing and she also held various 
positions at Advanced Micro Devices Inc. 
(AMD), a multinational semiconductor 
company. She holds an MBA from 
Technische Universität Dresden.
Carol Chesney joined IQE’s Board in May 
2019 and was appointed as Senior 
Independent Director in November 2020.
With a wealth of Board experience, Carol 
also serves as a Non-Executive Director 
and Audit Chair for Hunting plc, Hill & Smith 
plc and Imagination Technologies Group 
Limited. Previously she was Non-Executive 
Director and Chair of the Audit Committee 
of Renishaw plc and Biffa plc. 
Until 2018 Carol served as the Company 
Secretary of Halma plc, a FTSE 100 health, 
safety and environmental technology 
group, having also served as the group’s 
Financial Controller. 
Carol is a Fellow of the Institute of 
Chartered Accountants in England and 
Wales, and qualified with Arthur Andersen 
in the UK.
R
N
A
E
N
70
IQE Annual Report and Accounts 2024

Victoria Hull joined IQE as a 
Non-Executive Director in 
August 2021. An experienced 
Non-Executive Director, 
Victoria Hull currently serves 
Non-Executive Directorship 
and Committee roles for a 
variety of listed companies.
She is the Senior Independent 
Director and Chair of the 
Nominations Committee for 
Hikma Pharmaceuticals plc. 
Victoria is also a Non-Executive 
Director and Chair of the 
Remuneration Committee for 
IMI plc and Serco plc.  Prior to 
these appointments, Ms Hull 
held an executive directorship 
at Invensys, now Schneider 
Electric. Having worked in a 
variety of global companies at 
Executive Committee or Board 
level, she brings an extensive 
understanding of legal, 
commercial and governance 
matters. Victoria has a strong 
background in corporate 
finance and began her career 
as a trainee solicitor at Clifford 
Chance LLP.
Harmesh Suniara has over 15 
years’ experience of working 
in investment management, 
with a particular focus on UK 
small and mid-cap equities 
including the technology and 
life sciences sectors. 
He brings a wealth of expertise 
in active engagement with 
companies that Lombard 
Odier has invested in, joining 
IQE’s Board in June 2023. Since 
2017 he has worked as a 
Portfolio Manager at Lombard 
Odier 1798 Volantis, and prior to 
this he was an Investment 
Manager at Henderson 
Volantis Capital and Gartmore 
Investment Management. 
Lombard Odier 1798 Volantis is 
a major shareholder in IQE.
Victoria Hull  
(62)
Non-Executive Director
Harmesh Suniara  
(54)
Non-Executive Director 
Bami Bastani has a wealth of 
experience in the 
semiconductor industry. 
He joined IQE’s Board in 
January 2024 after spending 
seven years at 
GlobalFoundries, first as Senior 
VP and GM of the Mobile & 
Wireless Infrastructure Business 
Unit and then as Senior VP and 
Senior Advisor to the CEO as 
well as GlobalFoundries’ Board 
member at the Global 
Semiconductor Alliance (GSA). 
Prior to GlobalFoundries Bami 
held President, CEO and Board 
member roles at Meru 
Networks, Trident Microsystems 
and ANADIGICS. Bami brings 
over 42 years of 
semiconductor industry 
experience in conjunction with 
over 20 years of experience 
serving on Boards of Directors 
of public and private 
companies. He holds a PhD 
and a Master of Science in 
Solid State Electronics from The 
Ohio State University and a 
Bachelor of Science 
in Electrical Engineering from 
University of Arkansas.
Maria Marced is a highly 
experienced executive within 
the semiconductor sector. 
She currently serves on several 
boards including CEVA and 
Sequans Communications and 
is the Chairwoman of the GSA 
EMEA Leadership Council.
Maria was the President of 
TSMC Europe from November 
2007 until December 2023 and 
was responsible for the 
strategy and management of 
TSMC Europe and leading the 
decision of TSMC on the EU fab.
Maria joined Philips 
Semiconductors in 2003 as 
Senior Vice President and 
General Manager of the 
Connected Multimedia 
Solutions Business Unit and 
later on as General Manager of 
Sales and Marketing during the 
transformation of Philips to 
NXP. 
Maria joined Philips from Intel 
where she developed her 
professional career over 19 
years, reaching senior 
positions in Europe, Middle East 
and Africa as Vice President 
and General Manager. 
Maria holds a degree in 
Telecommunications 
Engineering from Universidad 
Politecnica de Madrid, Spain. 
Bami Bastani  
(71)
Non-Executive Director 
Maria Marced  
(70)
Non-Executive Director 
Key for Committee membership
 Audit & Risk Committee
Nomination Committee
A
Remuneration Committee
R
N
Environmental, Social & Governance Committee
E
Chair of Committee
E
R
E
A
N
A
R
Governance Report
IQE Annual Report and Accounts 2024
71

I am confident the Board’s continued focus on these 
areas will support IQE’s performance and its position 
in the market, and will enable it to grow and embrace 
its opportunities as they arise.
The Board is committed to driving IQE’s long-term 
objectives and to overseeing IQE’s operations to 
ensure competent and prudent management. The 
approach to governance is set by the Board, 
charging the Executive Leadership Team with the 
responsibility to ensure that the approach is 
effectively implemented across IQE’s global business.
The year 2024 was again a challenging one for IQE 
and the broader global semiconductor industry. We 
continued to see softness in some market segments 
and a delay in expected growth in others. The global 
economy continued to be challenged by higher 
interest rates, inflation and conflict. IQE made 
significant changes to its cost structure through 2024, 
and towards the later part of the year to its Executive 
Leadership Team, but continued to make steady 
progress in its diversification strategy towards power 
and display markets. 
Board changes in 2024
I joined the Board on 2 October 2024 as a Non-
Executive Director. Americo Lemos left IQE on 
28 October 2024 and, on the same date, I was 
appointed by the Board as Executive Chair, and Jutta 
Meier as Chief Executive Officer alongside her existing 
duties as Chief Financial Officer. Phil Smith, who had 
been Chair of IQE since 2019, stepped down from his 
role but remained on the Board as a Non-Executive 
Director until 31 December 2024.
Jutta brings her wide-ranging financial leadership 
and semiconductor industry experience to bear in her 
joint role as Chief Executive Officer and I am confident 
that the Board is well positioned to lead the Group 
through the current Strategic Review process. 
Corporate Governance
Chair’s  
Governance  
overview
Mark Cubitt
Executive Chair
“The Board made a number 
of changes to IQE’s 
leadership in late 2024 and 
announced a Strategic 
Review designed to ensure 
that the Group is well 
positioned to take 
advantage of future 
opportunities.”
Mark Cubitt
Executive Chair
I am pleased to introduce IQE’s 
Governance Report on behalf of 
the Board. The Board is collectively 
responsible for IQE’s long-term 
success and hence committed to 
conducting business responsibly, 
maintaining high standards of 
corporate governance, and to 
aspiring to the highest levels of 
quality in everything it does.
72
IQE Annual Report and Accounts 2024

Governance structure
Accountability
Delegation
Shareholders
Audit & Risk 
Committee
Nominations 
Committee
Remuneration 
Committee
ESG Committee
Chief Executive Officer
Executive Leadership Team
Operating Sites
Business Units
Functions
Research & 
Development
Responsibilities:
•	Reviewing 
financial 
reporting and 
disclosures
•	Reviewing audit 
effectiveness
•	Assessing internal 
controls and risk 
management
•	Advising on 
external auditor
Responsibilities:
•	Review 
composition of 
the Board
•	Succession 
planning for the 
Board and senior 
management
•	Review 
developments in 
corporate 
governance
Responsibilities:
•	Evaluate 
performance and 
effectiveness of 
Chief Executive 
Officer and Chief 
Financial Officer
•	Review and 
approve 
principles of 
IQE’s LTIP
•	Maintaining 
dialogue with 
IQE’s shareholders 
on remuneration 
policy
Responsibilities:
•	Develop and 
monitor the 
execution of IQE’s 
ESG strategy
•	Oversee the 
communication 
of the Company’s 
ESG activities with 
all stakeholders
+ See page 83
+ See page 82
+ See page 81
+ See page 76
Board evaluation
The Board has a well-established process for 
undertaking an annual review of the performance of 
the Board, its Committees and the Chair. We did not 
complete a formal evaluation of the Board in 2024 
due to the number of changes at a Board and 
Executive Leadership Team level, and the Strategic 
Review and proposed financing announced on 
18 November 2024, which coincided with the time in 
which the Board usually undertakes its annual 
evaluation. On page 74 we have set out the areas 
that the Board will be focused on through 2025. 
I encourage all of our shareholders to engage with us 
ahead of the AGM which will be held on 30 June 2025. 
Notice of, and details of the arrangements for, the 
AGM will be provided to shareholders at the usual time.
I am confident that the steps we have taken through 
2024 will make a strong positive contribution to IQE as 
we drive to achieve the vision and goals we have set.
Mark Cubitt
Executive Chair
12 May 2025
IQE Board
Governance Report
IQE Annual Report and Accounts 2024
73
IQE Annual Report and Accounts 2024
73

Role of the Board
The Board is responsible for the overall conduct of 
IQE’s business and the Directors have responsibilities 
under both the Company’s Articles of Association and 
UK company law. The Board delegates day-to-day 
management of IQE to the Chief Executive Officer and 
the Executive Leadership Team.
The primary tasks of the Board in 2024 included:
Strategy
•	 Assessed progress against the Group’s strategy 
•	 Overseeing the announced Strategic Review
•	 Regular reviews of key business decisions and their 
impact on the Group’s strategy
Finance
•	 Oversaw the launch of the Group’s proposed 
convertible loan note and the initiation of 
negotiations with the Group’s bank for a revised 
facility agreement
•	 Reviewed, approved and monitored progress 
against the financial plan for the 2024 financial 
year
•	 Monitored, challenged and approved capital 
expenditure (‘capex’)
•	 Approved the Annual Report, half-year results 
and interim trading updates
•	 Considered and approved IQE’s going concern 
and viability statements
Leadership and people
•	 Changed the Chief Executive Officer and 
implemented Executive roles
•	 Oversaw changes to the Group’s Executive 
Leadership Team
Operations
•	 Regularly received operational, including health, 
safety and environment, updates at scheduled 
meetings
•	 Monitored performance and provided challenge 
in key areas of operations
Governance and ethics
•	 Received and reviewed feedback from institutional 
investors
•	 Reviewed the requirements of the 2018 UK 
Corporate Governance Code and areas 
of non‑conformity
•	 Regular meetings between the Non-Executive 
Directors only
Independence
The Board considers that, with the exception of Mark 
Cubitt and Harmesh Suniara, all of the Non-Executive 
Directors are independent in character and 
judgement and free from any business or other 
relationship that could materially interfere with 
exercising that judgement. Mark Cubitt was appointed 
as Executive Chair on 28 October 2024. and will not be 
considered as an Independent Director for so long as 
he is Executive Chair. Harmesh Suniara was 
appointed as the representative of Lombard Odier.
The Board is also satisfied that there is no compromise 
to the independence of, and nothing which would 
give rise to conflicts of interest for, those Directors 
who serve as Directors on other company boards or 
who hold other external appointments. The Board 
considers potential for conflicts of interest at every 
Board meeting and ensures that Directors present 
sufficient information for those to be reviewed.
Appointment and time commitment
The Executive Chair and each of the other Non-
Executive Directors have letters of appointment.
The Executive Chair’s letter of appointment sets out 
the time commitment expected of him. The other 
Non-Executive Directors’ letters of appointment set 
out a minimum expected time commitment but do 
not set out a fixed time commitment.
The Non-Executive Directors are expected to allocate 
appropriate time to IQE to perform their duties and to 
make themselves available for all regular and ad hoc 
meetings. The Board believes each of the Non-
Executive Directors has sufficient time to perform 
their duties.
Board evaluation
The Board did not complete a formal evaluation in 
2024. In the later part of 2024 the Board was focused 
on transitioning the Group’s Executive leadership with 
Mark Cubitt and Jutta Meier and supporting changes 
to the Group’s Executive Leadership Team, as well as 
the announced convertible loan note financing and 
Strategic Review. The Board was rightly focused on 
delivering a smooth transition and future financial 
stability for the Group through a challenging business 
environment. The Board intends to recommence its 
usual internal evaluation processes in the second half 
of 2025 once the Board has steered the Group 
through its short term requirements. 
Corporate Governance continued
74
IQE Annual Report and Accounts 2024

Board and Committee attendance
Board
Audit & Risk 
Committee
Remuneration 
Committee
Nominations 
Committee*
ESG 
Committee
Number of meetings in 2024
14
4
5
2
2
Attendance
Executive
Mr Mark Cubitt**
5
1
0
0
1
Ms Jutta Meier
14
3
2
0
2
Non-Executive
Mrs Carol Chesney
12
3
5
2
1
Maria Marced
13
3
5
2
1
Ms Victoria Hull
13
2
5
2
1
Bami Bastani
14
3
5
2
1
Mr Harmesh Suniara
12
3
5
2
2
	*
The Nominations Committee met on an informal basis throughout the year. In particular, there were a number of meetings and 
discussions relating to the appointment of a Chair-elect and the subsequent changes at an Executive level and the appointment of 
Mark Cubitt as Executive Chair and Jutta Meier as CEO.
*	
*
Mark Cubitt joined the Board as Non-Executive Director on 8 October 2024 and was appointed as Executive Chair on  
29 October 2024. 
UK Corporate Governance Code compliance
IQE complied throughout 2024 with the principles and 
provisions of the UK Corporate Governance Code 
2018 except in the following areas:
Provision 17
IQE does not currently maintain a succession plan for 
the Company Secretary or all senior management 
immediately below Board level. IQE will work to 
develop such plans based on merit and objective 
criteria. As part of its consideration of developed 
succession plans, the Nominations Committee will 
consider the linkage of its diversity objectives with 
Company strategy and the gender balance of those 
in senior management and their direct reports.
Provision 21
Whilst the Board does have a process for formal and 
rigorous annual evaluations of the performance of 
the Board and its Committees, this was not 
completed in the year 2024 due to the number of 
changes at a Board and Executive Leadership Team 
level, and the Strategic Review and proposed 
financing announced on 18 November 2024, which 
coincided with the time in which the Board usually 
undertakes its annual evaluation. 
Provision 33
The Remuneration Committee has responsibility for 
determining the policy and setting remuneration for 
the Executive Directors and the Chairman. It also has 
responsibility to recommend and monitor the policy, 
level and structure of remuneration for senior 
management. However actual remuneration for 
senior management and the Company Secretary 
(noting that the Company Secretary is part of the 
Executive Leadership Team and senior management) 
is set and determined by the CEO in consultation with 
the Group’s Chief People Officer and appropriate 
external advice and benchmarking.
Provision 36
Share options granted to the Executive Directors 
under IQE’s Long-Term Incentive Plan (LTIP) are 
subject to total vesting and holding periods of three 
years, opposed to five years. In addition, Executive 
Directors are subject to a minimum holding 
requirement equal to 200% of their base salary and 
will have a post-employment shareholding 
requirement for two years. The minimum holding will 
be equal to 200% of base salary in the first year 
post-employment, reducing to 100% of base salary 
in the second year.
IQE’s approach aligns with market practice across 
IQE’s peer group on AIM and the Remuneration 
Committee considers the current holding periods to 
be the right balance between incentivising Executive 
Directors and aligning with the interests of the 
Group’s stakeholders.
A copy of the 2018 UK Corporate Governance Code is 
available at frc.org.uk. The UK Corporate Governance 
Code was updated in January 2024 with the 2024 
Code applying for financial years beginning on or 
after 1 January 2025. 
Governance Report
IQE Annual Report and Accounts 2024
75

Audit & Risk  
Committee  
Chair’s  
introduction
I am pleased to present the Report of the Audit 
Committee, which provides a summary of the 
Committee’s role and activities during the 2024 
financial year. The Board considers the maintenance 
of high standards in its governance and 
management of the affairs of IQE as fundamental to 
the discharging of its stewardship responsibilities. 
Accordingly, both the Board and the Audit & Risk 
Committee continue to keep under review IQE’s whole 
system of internal control, which comprises not only 
financial controls, but also business and operational 
controls, compliance and risk management.
The Committee works with IQE’s internal finance 
function and external auditors discussing, assessing 
and challenging financial reporting and going 
concern assessments. The Committee used its 
structured meeting schedule to ensure that it 
provides robust challenge in the areas relating to 
financial reporting, internal controls and risk 
management, the external auditors and other issues 
pertinent to IQE.
,The Committee’s work during the year focused on 
several key areas of governance:
•	 The Group’s available financial resources, costs and 
investments, and compliance with banking 
covenants 
•	 The Group’s requirement for short-term financing 
through the Strategic Review period
•	 The Group’s continued review and Improvement of 
Its financial controls 
In December 2024 the Group received a letter from 
the Financial Reporting Council (FRC) noting that the 
Group’s annual report and accounts to 31 December 
2023 had been included in the sample for the 
‘Climate-related Financial Disclosures by AIM and 
Large Private Companies’ thematic review. We were 
pleased to be made aware that the FRC had no 
questions or queries to raise with the Group following 
that review and we have implemented changes to 
our climate-related reporting to align with the FRC’s 
recommendations to assist users of the accounts. 
The Committee has noted that the UK Corporate 
Governance Code 2024 will be effective for the 
Group’s financial year commencing on 1 January 
2025, and its work in the year ahead will include 
adopting the changes necessary to comply with the 
revised Code. The Committee will also continue to 
place specific focus on the Group’s financial 
resources and financial controls. 
Carol Chesney
Chair
12 May 2025
“The Audit Committee ensures the 
integrity of our financial statements, 
assesses the efficiency of our risk 
management strategies and internal 
controls, and reviews the 
effectiveness of IQE’s external audit 
process.”
Audit & Risk Committee Report
Carol Chesney
Chair
76
IQE Annual Report and Accounts 2024

Role of the Committee
The Audit & Risk Committee is responsible for 
monitoring the effectiveness of IQE’s financial 
reporting, internal controls and risk management 
systems and processes and the effectiveness and 
independence of IQE’s external auditors.
Key responsibilities
•	 Reviewing the effectiveness of IQE’s financial 
reporting, internal control policies and procedures 
for the identification, assessment and reporting of 
risk
•	 Reviewing significant financial reporting issues and 
judgements including the potential for asset 
impairment and assessment of viability and going 
concern
•	 Monitoring the integrity of IQE’s financial statements 
and any formal announcements relating to IQE’s 
financial performance
•	 Keeping the relationship with the external auditors 
under review, including their terms of engagement, 
fees and independence
•	 Reviewing and monitoring the need to establish a 
dedicated internal audit function
•	 Advising the Board on whether the Committee 
believes the Annual Report and Accounts, taken as 
a whole, is fair, balanced and understandable and 
provides the information necessary for 
shareholders to assess IQE’s performance, business 
model and strategy
•	 Conducting the tender process and making 
recommendations to the Board, about the 
appointment, reappointment and removal of the 
external auditor, and approving the remuneration 
and terms of engagement of the external auditor
•	 Reviewing and monitoring the external auditor’s 
independence and objectivity
•	 Reviewing the effectiveness of the external audit 
process, taking into consideration relevant UK 
professional and regulatory requirements
•	 Developing and implementing policy on the 
engagement of the external auditor to supply 
non-audit services, ensuring there is prior approval 
of non-audit services, considering the impact this 
may have on independence, considering the 
relevant regulations and ethical guidance in this 
regard, and reporting to the Board on any 
improvement or action required
•	 Reporting to the Board on how it has discharged its 
responsibilities 
Membership
•	 Carol Chesney – Chair
•	 Victoria Hull
•	 Bami Bastani
Carol Chesney is Chair of the Audit & Risk Committee. 
Carol is a Chartered Accountant and has also held 
several senior finance roles. The Board is satisfied that 
Carol is the Committee member with recent and 
relevant financial experience as required by the UK 
Corporate Governance Code 2018. The Board is also 
satisfied that the Committee as a whole, including 
invited attendees as necessary, has a mix of 
experience and competencies to assess the issues 
facing the Group within the semiconductor industry.
Meetings and attendance
The Audit & Risk Committee meets quarterly, with 
additional meetings as required. There were four 
meetings in 2024 and all of the Committee members 
(as at the date of the meeting) attended each 
meeting, with the exception of the meeting on 4 April 
2024 which Victoria Hull was unable to attend for 
personal reasons.
The meetings are also regularly attended by the 
Executive Chair, Chief Executive Officer & Chief 
Financial Officer, Chief People Officer & General 
Counsel and other senior members of the  
finance team.
IQE’s external auditors attend meetings and time is 
allowed at the end of each meeting for the Audit & 
Risk Committee members to discuss issues with the 
external auditors without management being 
present. The Chair also holds at least one separate 
meeting with the audit partner ahead of each 
Committee meeting.
Governance Report
IQE Annual Report and Accounts 2024
77

Activities during 2024
The Committee continues to oversee a range of risk areas that are key to IQE’s long-term success and 
compliance with applicable laws and regulations.
The majority of the Committee’s work derives from a structured programme that is designed to fulfil its 
responsibilities as set out in its terms of reference, with additional focus areas in 2024 as set out on page 77. 
The table below summarises the key activities at each meeting during 2024:
Agenda item
4 April
5 September
9 September
12 December
Review financial performance with focus on liquidity and 
covenant strength
•
•
•
•
Review of financial statements, going concern assumption and 
compliance with accounting standards
•
•
•
Review and recommend for approval year-end and half-year 
announcements
•
Review of significant reporting issues and material judgements
•
•
•
Review of key business risks
•
•
•
Annual review of process and procedures for risk management
•
Consider requirements for internal audit function
•
Consider any material breach of law
•
•
•
Review Whistleblowing Policy and procedures for preventing 
fraud, bribery and corruption
•
•
Review of insurance programme, policies and material 
judgements
•
Review representation letter for full-year and half-year
•
•
Review effectiveness of Audit & Risk Committee
•
Review of auditor quality and independence
•
Consider audit effectiveness
•
Review accounting and corporate governance developments
•
Committee-only meeting with external auditor
•
•
The UK Corporate Governance Code 2018 requires the 
Directors to prepare the Annual Report and Accounts 
and to state that they consider them, taken as a 
whole, to be fair, balanced and understandable and 
provide the information necessary for shareholders to 
assess IQE’s position and performance, business 
model and strategy. The Board requested that the 
Audit & Risk Committee advise it as to whether the 
Annual Report and Accounts meet those 
requirements.
This work formed part of the review of the draft 
financial statements that was undertaken by the 
Committee in September 2024 and April 2025.
Through consideration of reports from, and meetings 
with, management and the external auditors, the 
Committee has reviewed and determined the 
following:
•	 Judgemental areas and significant matters relating 
to the financial statements as set out on pages 128 
to 130;
•	 Whether the expected future cash flows of IQE 
support the carrying value of the Group’s cash 
generating units, and whether there are any 
triggering events which suggest any potential 
impairment of other intangible assets including the 
valuation of development intangibles and the 
capitalisation of development costs; and
•	 Whether the presentation of the financial 
statements, including the presentation of adjusted 
performance measures, is appropriate and 
balanced.
Through consideration of reports by independent tax 
specialists assessing IQE’s tax affairs in the UK, the US, 
and Taiwan, as appropriate, and consideration of 
reports by and meetings with management 
assessing current and deferred tax accounting, the 
Committee has reviewed and determined whether 
the provision for tax liabilities, and the current and 
deferred tax accounting is appropriate.
The Committee has reviewed the resources available 
to IQE, taking account of IQE’s trading and cash flow 
forecast together with available funding headroom to 
assess the appropriateness of the going concern 
assumption.
Significant matters relating to the financial 
statements
The Committee performs a review of significant 
matters that relate to the financial statements. The 
matters that the Committee considers are significant 
are set out below:
•	 Going concern and the appropriateness of the 
disclosure contained within the significant 
accounting polices note relating to the application 
of the going concern basis of accounting in the 
financial statements;
Audit & Risk Committee Report continued
78
IQE Annual Report and Accounts 2024

KPMG LLP
2024
£’000
2023
£’000
Fees payable to the Company’s auditor and its associates for the audit of parent 
company and consolidated financial statements
720
671
Additional fees payable in relation to the audit of the parent company and 
consolidated financial statements for the years ended 31 December 2023 and 2022
25
134
Fees payable to Company’s auditor and its associates for other services:
•	 The audit of the Company’s subsidiaries
25
25
•	 Audit-related assurance services
51
-
•	 Tax and other advisory services
-
-
Total KPMG LLP (Group auditors)
821
830
•	 Compliance with financial covenants contained 
within the Group’s committed bank facilities and 
the associated availability of the Group’s bank 
facilities;
•	 Impairment review of cash generating units and 
the revenue growth rates and discount factors 
applied in business unit value in use calculations 
that support the carrying value of the Group’s cash 
generating units;
•	 Identification of the Group’s cash generating units 
and the allocation of revenue, assets, costs and 
impairment to each cash generating unit;   
•	 Intangible development cost carrying values and 
associated markets, end use applications and 
customer demand for the technologies which 
support asset carrying values;
•	 Revenue recognition and any judgements 
associated with the satisfaction of performance 
obligations for significant transactions; and
•	 Presentation and disclosure of adjusted 
performance measures including appropriate 
clarity of reconciliation between each GAAP and 
non-GAAP measure.
External Auditors
The Audit & Risk Committee has developed an auditor 
independence policy. In accordance with this policy, 
the Committee oversees the relationship with the 
external auditors and monitors all services provided 
by them and all fees payable to them. This is to 
ensure that potential conflicts of interest are 
considered and that an independent, objective and 
professional relationship is maintained.
The Committee has a policy on the provision of 
non-audit services by the external auditor in line with 
the Financial Reporting Council’s Revised Ethical 
Standard 2019. The Group has a policy prohibiting the 
use of the Group’s auditors for the provision of 
non-audit services other than an interim half-year 
review.
The Audit & Risk Committee also monitors the 
effectiveness of the external audit. Before the end of 
the financial year, the Committee receives a detailed 
audit plan from the auditors that identifies the 
auditors’ assessment of the key risks and their 
intended areas of focus. This is agreed with the 
Committee to ensure that the scope and coverage of 
audit work is appropriate. IQE’s management also 
provides the Committee with feedback on the 
effectiveness of the audit and the quality of the audit 
firm and lead audit partner.
In addition, the Group’s auditors are required to make 
a formal report to the Audit & Risk Committee 
annually on the safeguards that are in place to 
maintain their independence and the internal 
safeguards in place to ensure their objectivity.
A resolution to reappoint KPMG will be proposed at 
the forthcoming Annual General Meeting.
Internal audit and controls
The Audit & Risk Committee reviewed the 
effectiveness of IQE’s system of internal controls and 
risk management activities bi-annually as part of the 
half-year and full-year public reporting.
The system of internal control comprises those 
controls established in order to provide assurance 
that IQE’s assets are safeguarded against 
unauthorised use or disposal, and to ensure the 
maintenance of proper accounting records and the 
reliability of financial information used within the 
business or for publication.
The key procedures that IQE has established with a 
view to providing effective internal control include the 
following:
•	 A clearly defined organisational structure and 
limits of authority;
•	 Corporate policies and procedures for financial 
reporting and control, project appraisal, human 
resources, quality control, health and safety, 
information security and corporate governance;
•	 The preparation of annual budgets which require 
approval from the Board and the delivery of 
regular financial forecasts to the Board;
•	 The monitoring of performance against budget 
and forecasts and the reporting of any variances 
in a timely manner to the Board;
•	 Regular review and self-assessment of IQE’s risks, 
taking steps to monitor and mitigate these 
wherever possible;
•	 Where appropriate, taking out insurance cover; and
Governance Report
IQE Annual Report and Accounts 2024
79

•	 Approval by the Audit & Risk Committee of audit 
plans and, on behalf of the Board, receipt of reports 
on IQE’s accounting and financial reporting 
practices and its internal controls together with 
reports from the external auditors as part of their 
normal audit work.
This process remained in operation for the year under 
review and as part of that process, management 
reports any material exceptions to the Audit & Risk 
Committee. 
In the current year, the Group has continued to focus 
on improvements to its internal financial control 
procedures, work that has included formalisation of 
individual financial cycle risk assessments, process 
flow documentation and key control matrices. This 
work, combined with dedicated investment in finance 
team resources has enabled the Group to update 
and optimise its approach to financial governance 
and control, implementing new and enhanced 
financial controls to mitigate the occurrence of 
financial reporting errors and fraud. During the year 
the Committee has had regular dialogue between 
financial reporting personnel, the external auditors 
and members of the Committee to understand the 
work that has been performed and the changes to 
financial controls that have been implemented. The 
Committee is pleased with the output of the work 
performed, something that has been evident from 
the reduction in volume and frequency of period-end 
financial adjustments and the formal documentation 
of the Group's financial cycle risks, processes flows 
and controls. The Committee will continue to have a 
strong focus on financial governance and control in 
2025, ensuring that the improvements implemented 
in the current year are maintained and remain 
embedded as 'business as usual' in the day-to-day 
operations and financial management of the Group.
The Group relies on a range of legacy IT systems and 
software to support its day-to-day operations which 
are not fully integrated, a position that is managed 
from a financial governance and control perspective 
via manual processes which have been enhanced 
during the current year. The longer-term objective of 
the Group is to update, consolidate and integrate IT 
systems and software, increasing automation, 
control, and efficiency. This objective has initially been 
focused on the Group’s manufacturing systems with 
upgrades and integration of financial systems 
planned as part of wider enterprise resource planning 
(ERP) system enhancements in the medium term.
IQE does not have an independent internal audit 
function, however it does operate internal audit on an 
ad hoc peer review basis, with a scope of evaluating 
and testing IQE’s financial control procedures. The 
Committee considers that this remains appropriate 
for IQE’s size and geographical spread, but the 
Committee keeps this under constant review. In 
completing its review of the effectiveness of IQE’s 
system of internal controls the Audit & Risk 
Committee has taken account of any material 
developments up to the date of the signing of the 
most recent financial statements. In addition, 
recognition is given to the external audit findings, 
which help to inform the Audit & Risk Committee’s 
views of areas of increased risk.
Risk Management
The Group Risk Committee identifies, reviews, 
assesses and tracks IQE’s key risks and mitigating 
actions. The Group Risk Committee documents its 
approach through a risk register which is shared and 
discussed with the Audit & Risk Committee. 
Key risk management activities performed by IQE are 
summarised on page 62. The Committee takes an 
active role in the risk management process that 
includes a regular review of IQE’s risk register and 
‘deep dives’ into specific areas of risk. The Audit & Risk 
Committee has been particularly focused on the 
Group’s financial and liquidity risks through 2024. 
IQE’s principal risks and uncertainties are set out on 
pages 63 to 67. While many of the key risks identified 
recur from year to year, the relative importance 
evolves over time and may require IQE to refocus its 
assurance activities. In the year ahead, the 
Committee will continue to work with the Board, 
Executive Leadership Team and other senior 
management to ensure that there is appropriate 
focus on the most significant risk areas together with 
the associated plans for mitigating their impact.
Anti-bribery and corruption
IQE maintains a zero-tolerance approach to corruption. 
It has an established Anti-bribery and Corruption Policy, 
which includes guidance on the giving and receiving of 
gifts and hospitality. This policy applies throughout IQE’s 
business. A Gifts and Hospitality Register is maintained 
to ensure transparency.
Whistleblowing
IQE operates a confidential reporting mechanism, 
overseen by IQE’s Chief People Officer & General 
Counsel, which enables employees to raise concerns 
of malpractice, non-compliance or unethical 
conduct. The options for raising concerns are widely 
communicated to employees. These channels are 
clearly set out in IQE’s Whistleblowing Policy. Any 
whistleblowing reports are confidentially reported 
tothe Audit & Risk Committee. IQE’s reporting policy 
and procedures provide a framework for protected 
disclosure.
Audit & Risk Committee Report continued
80
IQE Annual Report and Accounts 2024

Nominations Committee Report
The Nominations Committee has overseen several 
changes to IQE’s Board in recent years. In 2024, the 
Nominations Committee initiated a search for a new 
Chair which concluded with my appointment as a 
Non-Executive Director and ‘Chair Elect’. I became 
Executive Chair on 29 October 2025 and am 
confident that my partnership with our CEO and CFO, 
Jutta, will provide the Group with the right amount of 
support through our current Strategic Review. The 
Nominations Committee has not yet initiated a 
search for a new permanent CEO.  
The Committee was also involved in succession 
planning for the Executive Leadership Team 
departures, supporting the departure of several 
executives and the appointment of existing members 
of the Executive Leadership Team into broader roles.
The Committee engaged Lygon Group to assist with 
the search for the new Chair. 
Role of the Committee 
The Nominations Committee is responsible for 
leading the process for the selection and 
appointment of Directors and for ensuring plans are 
in place for an orderly succession of Board and senior 
management positions. 
Key responsibilities 
•	 Review the structure, size and composition 
(including the skills, knowledge, experience and 
diversity) of the Board and make recommendations 
to the Board with regard to any changes 
•	 Identify, evaluate and recommend candidates for 
appointment as Directors 
•	 Succession planning for Directors and other senior 
management 
•	 Review developments in law, regulation and best 
practice relating to corporate governance and 
make recommendations to the Board on 
appropriate action 
Membership 
•	 Mark Cubitt - Chair 
•	 Carol Chesney 
•	 Victoria Hull 
Meetings and attendance 
The Committee meets regularly on an ad hoc basis, 
often following the conclusion of scheduled Board 
meetings. All members attended each meeting. 
Mark Cubitt 
Committee Chair 
12 May 2025
Nominations 
Committee 
Chair’s 
introduction
“The Nominations Committee is 
dedicated to sourcing and securing 
top-tier global talent. Our strong 
Board will be instrumental to 
achieving IQE’s long-term goals, 
leveraging their deep industry 
knowledge, technical experience 
and diverse skill sets.”
Mark Cubitt
Chair
Governance Report
IQE Annual Report and Accounts 2024
81

The ESG Committee is responsible for developing and 
monitoring the execution of IQE’s sustainability 
strategy and the communication of IQE’s activities 
with our stakeholders. The ESG Committee is also 
responsible for monitoring the Board’s engagement 
with IQE’s people, with Victoria Hull and Bami Bastani 
acting as the Board’s workforce representatives.
The ESG Committee is working with the Executive 
Leadership Team and colleagues within IQE to 
develop IQE’s sustainability strategy. In 2024, the 
Committee was focused in supporting management 
with the development of the Group’s first report under 
the Task Force for Climate-related Financial 
Disclosures and in the development of the Group’s 
targets for the Science-Based Targets initiative, which 
the Group committed to in May 2022. 
The Committee was pleased that the Group’s 
emissions reduction targets were approved by the 
SBTi in late 2024 and looks forward to working with 
management in 2025 to further develop the Group’s 
transition plans. 
Role of the Committee
The ESG Committee is responsible for developing and 
monitoring the execution of IQE’s ESG strategy and 
the communication of that strategy to IQE’s 
stakeholders.
“IQE achieved approval for its near 
and long-term science-based 
emissions reduction targets from the 
Science-Based Targets initiative 
(SBTi) in 2024, a significant milestone 
in our journey to being Net Zero 
across our operations by 2050.”
Key responsibilities
•	 Ensure that IQE has a fit-for-purpose ESG strategy 
and drive momentum behind the development 
and implementation of that strategy
•	 Be responsible for communicating IQE’s position 
on Environmental, Social and Governance issues
•	 Ensure that the strategy meets IQE’s short- and 
long-term business objectives
•	 Review the effectiveness of the strategy and the 
governance for its successful delivery
•	 Approve ESG reporting and specifically any 
reporting and data included in IQE’s Annual Report
•	 Report to the Board about the Committee’s work 
and progress against the strategy
Membership
•	 Mark Cubitt – Chair
•	 Maria Marced
•	 Bami Bastani
Meetings and attendance
The ESG Committee aims to meet at least twice a 
year. In 2024 the Committee met twice, in May and 
November. The first meeting was chaired by Phil 
Smith and the second meeting was chaired by Mark 
Cubitt*.
Mark Cubitt
Committee Chair
12 May 2025
ESG 
Committee 
Chair’s 
introduction
ESG Committee Report
Mark Cubitt*
Committee Chair
	*
Mark Cubitt joined the Board on 8 October 2024. 
82
IQE Annual Report and Accounts 2024

Remuneration 
Committee 
Chair’s 
introduction
“On behalf of the Board, I present the 
Remuneration Report for the year 
ended 31 December 2024.”
Directors’ Remuneration Report
Victoria Hull
Non-Executive Director and Chair 
of the Remuneration Committee
2024 incentive awards and outturns
The Committee engaged in extensive consultation 
with shareholders in 2024 covering changes to the 
approach to incentivising Executive Directors and 
senior management. The Committee wishes to thank 
shareholders for their engagement and feedback. 
Ultimately, IQE decided not to proceed with the 
proposed changes and given that awards under the 
Company’s Long-Term Incentive Plan (LTIP) had not 
been concluded at the time of Americo Lemos’ 
departure in late October 2024, and the immediate 
need to ensure that Jutta Meier was appropriately 
incentivised in her new role as CEO at a time when 
the Company was commencing a strategic review, a 
one-off award of nominal-priced share options with 
a face value equal to 34.46% of her salary was 
granted to Jutta on 28 November 2024. The award will 
vest after three years subject to the Remuneration 
Committee’s assessment of the Group’s financial 
performance over that period.
There was no bonus for the Executive Directors for the 
year 2024 and any share options that were due to 
vest in 2024 have lapsed based on financial 
performance. 
Executive changes and short-term 
incentives
Americo Lemos, Chief Executive Officer, departed the 
Company on 28 October 2024. Americo received a 
payment in lieu of notice equal to his contractual 
notice period for his basic salary and accrued 
holiday. The Company remains in discussion with 
Americo Lemos relating to the terms of his departure. 
Jutta Meier, who joined the Board as Chief Financial 
Officer on 22 January 2024, became CEO & CFO and 
Mark Cubitt, who had joined the Board on 8 October 
2024 as Non-Executive Director and Chair-elect, 
became Executive Chair. Given the initial interim 
nature of their appointments, the Committee did not 
immediately increase their fixed remuneration at the 
time of their appointment into these roles and 
instead agreed to award them additional payments 
to compensate them for their significantly increased 
responsibilities over the period from November 2024 
to April 2025. Further details are contained in the 
report below.  
2025 remuneration
In light of the ongoing increase in their responsibilities 
following the leadership changes in late 2024, the 
Committee determined that the base salary for Jutta 
(as combined CEO & CFO) should be increased to 
£425,000 (26% below the salary of her predecessor) 
and the base salary for Mark (as Executive Chair) 
would increase to £200,000. Both increases are 
effective from 1 May 2025. Mark’s base remuneration 
has been calculated on the basis that the current 
demands of the role require that he work on average 
for 2 days a week for the Company. The Committee 
will periodically review Mark’s role as Executive Chair 
and the appropriate timing for him to return to a 
Non-Executive Chair role. 
At the time of writing this report, the Committee was 
still assessing the long-term incentive arrangements 
for the Executive Directors and anticipates that the 
applicability of any annual bonus opportunity will be 
reviewed later in the year. 
Victoria Hull
Non-Executive Director and Chair 
of the Remuneration Committee
12 May 2025
Governance Report
IQE Annual Report and Accounts 2024
83

Remuneration at a glance
Purpose and link 
to strategy
Key features
Implementation in 
2024
Salary
Supports the 
attraction and 
retention of the best 
global talent with 
capability to deliver 
IQE’s strategy.
Reviewed annually
Salaries take account of external market and 
internal employee context.
No increase for the CEO 
& CFO although Jutta 
was paid an additional 
allowance of £62,500 to 
reflect her significantly 
increased 
responsibilities over the 
period from November 
2024 to April 2025. 
Average pay increases 
for the wider workforce 
were c.3%.  
Allowance and 
benefits
Provision of market-
competitive and 
cost-effective 
benefits to support 
attraction and 
retention of talent.
Provision of competitive benefits linked to local 
market practice.
Maximum Company pension contribution is 10% 
of salary.
Allowances and 
benefits unchanged 
from prior year.
Annual 
incentive
Incentivises delivery 
of IQE’s financial and 
strategic targets.
Provides focus on 
key financial metrics 
and the individual’s 
contribution to IQE’s 
performance.
Maximum is 120% of salary with 50% of the 
maximum payable for target performance.
Performance measures, weightings and 
stretching targets set annually.
Normally paid in cash after end of the financial 
year, save that any payout above 100% of salary 
will normally be made in the form of share grant.
Subject to malus and clawback provisions.
There was no 2024 
annual bonus payout 
for the CEO & CFO.
Long-term 
incentives
Provides alignment 
with shareholders by 
ensuring a 
significant 
percentage of 
remuneration is 
delivered in shares 
and rewards 
long-term 
performance in line 
with IQE’s strategy.
Normal annual awards of up to 200% of salary 
may be granted under IQE’s LTIP.
The normal maximum award may be exceeded 
in exceptional circumstances, such as 
recruitment.
Three-year performance period.
Performance measures, weightings and 
stretching targets reviewed annually.
Subject to malus and clawback provisions.
The CEO & CFO was 
granted a one-off 
award of nominal-
priced share options 
with a face value equal 
to 34.46% of her salary 
on 28 November 2024. 
Vesting is subject  
to the Committee’s 
assessment of financial 
performance over the 
vesting period.
Shareholding 
requirement
Ensures alignment 
between the 
interests of 
Executive Directors 
and shareholders.
Minimum shareholding requirements:
•	CEO 200% of salary
•	CFO 200% of salary
New joiners given time to reach threshold and 
not expected to self-fund.
CEO & CFO 
shareholding as at 
31 December 2024 - 
nil.
Directors’ Remuneration Report continued
84
IQE Annual Report and Accounts 2024

IQE aims to attract, retain and motivate high calibre 
executives in a highly competitive global industry, 
whilst recognising the need to be cost effective, and 
to incentivise significant industry out-performance. 
The Remuneration Committee established the 
current Remuneration Policy with the aim of 
balancing these factors, taking account of investor 
feedback and prevailing best practice. 
This Policy section of the Directors’ Remuneration 
Report sets out the Policy for Executive Director 
remuneration which the Committee intends to 
operate for 2025. As an AIM quoted company, IQE is 
not required to put its Policy to a binding shareholder 
vote, however, in developing the new Policy, the 
Committee has sought to comply with the main best 
practice expectations for UK companies while 
ensuring the Policy is sufficiently competitive 
compared to IQE’s sector, talent markets and 
ambitions for growth.
Directors’ Remuneration 
Policy
Function
Operation
Opportunity
Performance metrics
Base salary
To recognise 
the individual’s 
skills and 
experience and 
to provide a 
competitive 
total package
Base salaries are 
normally reviewed 
annually, with reference 
to market levels, 
individual contribution, 
the experience of each 
Executive and increases 
across the Group. Any 
adjustments normally 
become effective on 
1 April.
It is anticipated that salary 
increases will normally be no 
higher than those of salaried 
employees as a whole. In 
exceptional circumstances 
(including, but not limited to, 
a material increase in job 
size or complexity, material 
market misalignment) the 
Remuneration Committee 
has discretion to make 
appropriate adjustments to 
salary levels to ensure they 
remain appropriate.
n/a
Pension
To provide an 
opportunity for 
Executives to 
build up income 
on retirement.
All Executives are 
members of the Group 
pension scheme and/or 
receive a cash pension 
allowance. Salary is the 
only element of 
remuneration that is 
pensionable.
Executive Directors receive a 
pension contribution of 10% 
of salary or an equivalent 
cash allowance. This aligns 
with the pension 
arrangements for IQE’s 
employees who can receive 
matching contributions from 
IQE of up to 10% of salary.
n/a
Given recent changes to the Executive and senior 
leadership within the Group, the Committee is 
committed to ensuring that their total reward is 
competitive in the Company’s global marketplace 
and that the Executive and senior leadership are 
incentivised and rewarded for providing exceptional 
performance aligned with the Group’s strategic 
objectives. 
Governance Report
IQE Annual Report and Accounts 2024
85

Function
Operation
Opportunity
Performance metrics
Benefits
To provide 
non-cash 
benefits which 
are competitive 
in the market in 
which the 
Executive is 
employed.
Executives receive benefits 
which consist primarily of 
health cover, life 
assurance, long-term 
disability insurance and 
reimbursement for fuel, 
although may include 
other benefits that the 
Remuneration Committee 
deems appropriate in the 
circumstances.
Relocation and 
expatriation-related 
benefits may also be 
provided where 
appropriate.
Benefits may vary according 
to role and individual 
circumstances. Eligibility for 
benefits and the cost of 
benefits are reviewed 
periodically.
The cost of benefits is 
dependent on market rates 
and is not capped.
n/a
Annual Bonus
To incentivise 
and reward 
strong 
performance 
against 
financial and 
personal 
annual targets, 
thus delivering 
value to 
shareholders 
and being 
consistent with 
the delivery of 
the strategic 
plan.
Performance measures, 
targets and weightings 
are set at the start of the 
year.
The scheme is based on 
a combination of 
financial performance 
and personal objectives. 
At the end of the year, 
the Remuneration 
Committee determines 
the extent to which the 
objectives have been 
achieved.
Bonus payments are 
delivered in cash and 
any payment above 100% 
of salary will normally be 
made in the form of a 
share grant. 
Clawback (of any bonus 
paid) may be applied 
during employment or 
for two years post-
termination in the event 
of gross misconduct, 
material financial 
misstatement, error in 
calculation of outcomes 
or in any other 
circumstance that the 
Remuneration 
Committee considers 
appropriate.
For Executive Directors, the 
maximum annual bonus 
opportunity will be 120% of 
base salary.
The bonus pays 0% at 
Threshold, 50% at Target 
and 100% at Stretch, with 
straight-line vesting 
between these levels.
Performance is assessed on an annual 
basis against a scorecard of financial 
and personal/strategic objectives set 
at the start of each year.
Financial measures will be weighted 
appropriately each year according to 
business priorities, and will normally 
represent between 70% and 100% of 
the scorecard.
Personal objectives will normally have 
a weighting of between 0% and 30% of 
the maximum opportunity. These will 
be set annually to capture expected 
individual contributions to IQE’s 
strategic plan. The payout for any 
personal element will be reduced by 
50% in the event the thresholds for a 
majority of the relevant financial 
measures are not met.
The Remuneration Committee has 
discretion to adjust formulaic bonus 
outcomes to ensure fairness for 
shareholders and participants, to 
ensure pay aligns with underlying 
Company performance, and to 
avoid unintended outcomes. These 
adjustments can be either upwards 
(within plan limits) or downwards 
(including down to zero). The 
Remuneration Committee may 
consider measures outside of the 
bonus framework to ensure there is 
no reward for failure. Any adjustment 
would be carefully considered and fully 
explained in the Annual Report on 
Remuneration.
Directors’ Remuneration Report continued
86
IQE Annual Report and Accounts 2024

Function
Operation
Opportunity
Performance metrics
LTIP
To provide 
alignment with 
shareholders 
and competitive 
rewards by 
delivering a 
significant 
proportion of 
remuneration in 
company 
shares and 
incentivise 
sustained 
long-term 
performance 
that supports 
the creation of 
shareholder 
value.
Under the Long-Term 
Incentive Plan (LTIP) annual 
awards of shares or 
nominal-cost options may 
be made to participants.
Award levels and 
performance conditions 
are reviewed before each 
award cycle to ensure they 
remain appropriate.
The Committee has the 
discretion to authorise a 
payment, in shares, equal 
to the value of dividends 
which would have accrued 
on vested shares during 
the vesting period.
Malus (of any unvested 
LTIP) and clawback (of any 
vested LTIP) may be 
applied during 
employment or for two 
years post-termination in 
the event of gross 
misconduct, material 
financial misstatement, 
error in calculation of 
outcomes or in any other 
circumstance that the 
Remuneration Committee 
considers appropriate.
Normal awards of up to 200% 
of salary may be granted 
under the LTIP.
In exceptional 
circumstances, including but 
not limited to recruitment, 
normal awards may be 
exceeded.
Up to 25% of PSP awards 
granted under the LTIP will be 
paid for achieving Threshold 
performance, normally 
increasing on a straight-line 
basis to full vesting for 
achieving Stretch 
performance.
Vesting of PSP awards granted under 
the LTIP is subject to achieving 
performance conditions and 
continued employment. 
Performance conditions are normally 
measured over three consecutive 
financial years with awards vesting 
three years after grant.
The Remuneration Committee has 
limited discretion to amend the 
performance conditions provided that 
the amended performance condition 
is not materially easier to satisfy than 
the original condition.
The Remuneration Committee has 
discretion to adjust outcomes to 
ensure they fairly reflect underlying 
performance. The Remuneration 
Committee also considers 
environmental, social, governance and 
health and safety criteria, to ensure 
there is no reward for failure.
Notes to the Policy table
Performance measure selection and approach to 
target setting:
The measures used under the annual bonus plan are 
selected annually to reflect IQE’s main objectives for 
the year and reflect both financial performance and 
personal contributions to delivering the strategic 
plan. The performance conditions for new LTIP awards 
are selected to reflect IQE’s long-term objectives 
which support the creation of shareholder value.
Targets applying to the bonus and LTIP awards are 
reviewed annually, based on a number of internal 
and external reference points. Performance targets 
are intended to be stretching and achievable, and 
reflect IQE’s strategic priorities and its market 
opportunities.
Remuneration Policy for other employees
IQE provides all employees with a consistent package 
of benefits that includes private medical insurance, 
life assurance, long-term disability insurance and 
reimbursement for fuel.
All employees are eligible to participate in a 
discretionary annual bonus and receive awards 
under the LTIP. The same principles apply to the 
assessment of performance for determining the 
individual component of bonuses for all employees. 
For other employees, grants under the LTIP are 
subject to a pre-grant minimum personal 
performance condition and normally vest in annual 
tranches over three years subject to the employee 
remaining employed by the Group.
Shareholding guidelines
The Remuneration Committee wishes to encourage 
Executive Directors to build up a significant 
shareholding in the Company. Shareholding 
guidelines are therefore in place to require Executive 
Directors to acquire a shareholding (excluding shares 
held conditionally pursuant to LTIP performance) 
equivalent to 200% of base salary. 50% of any shares 
vesting (post-tax) under the LTIP are required to be 
held until the relevant shareholding level is achieved. 
Executive Directors are expected to build up the 
required shareholding within five years of 
appointment to the Board, although the 
Remuneration Committee will exercise appropriate 
discretion where Executive Directors have been 
impeded from building up the requisite shareholding 
due to business performance. Details of the Executive 
Directors’ current shareholdings are provided in the 
Annual Report on Remuneration on page 95.
Governance Report
IQE Annual Report and Accounts 2024
87

Non-Executive Director remuneration
Non-Executive Director
Date of appointment letter
Remuneration per annum
Carol Chesney
13 May 2019
£50,000
Victoria Hull
1 August 2021
£50,000
Bami Bastani
1 January 2024
$62,000
Maria Marced
1 January 2024
€57,000
Harmesh Suniara*
30 June 2023
£50,000
	*
Harmesh Suniara is the representative for Lombard Odier who receive a fee of £50,000 per annum equivalent to the Group’s 
standard Non-Executive Director fee.
Subject to re-election by shareholders, Non-Executive Directors are appointed by the full Board and retire annually in accordance with 
the Company’s Articles of Association. The remuneration of Non-Executive Directors is a matter reserved for the full Board, subject to an 
individual limit of £150,000 per annum or such other figure as shareholders may approve plus reasonable expenses in accordance with 
the Company’s Articles of Association.
The Non-Executive Directors are not eligible to participate in IQE’s performance-related bonus plan, long-term incentive plans or 
pension arrangements. Copies of the Non-Executive Directors’ appointment letters are available for inspection at the Company’s 
registered office during normal business hours.
2025 Executive Director remuneration
Mark Cubitt
Jutta Meier
	*
LTIP value calculated based on market value of the options at the date of grant less the nominal grant price.
For illustrative purposes given that the actual 2025 LTIP award levels have not yet been determined, the chart 
assumes 2025 LTIP grants at the normal maximum limit of 200% of salary for the CEO & CFO and 50% of salary 
for the Executive Chair. The ‘Minimum’ scenario comprises fixed remuneration, i.e. base salary, pension, and 
benefits, which are the elements of the remuneration package not linked to performance. The figures for base 
salary and pension (10% of salary) are as of 1 May 2025, while those for taxable benefits are based on the latest 
single figure table for 2024. Mark Cubitt is not entitled to pensions or other benefits. The ‘On-Target’ scenario 
reflects fixed remuneration as above and threshold vesting for the PSPs of 20% of maximum. The ‘Stretch’ 
scenario reflects fixed remuneration plus full vesting of LTIPs. The ‘Stretch + 50%’ reflects the ‘Stretch’ scenario 
plus an assumed 50% share price appreciation over the LTIP performance period. We have assumed that there 
will be no annual bonus for 2025.
Minimum
On target
Stretch
Stretch 50%
Minimum On target Stretch Stretch 50%
£220k 
£300k 
£350k 
£200k 
Fixed pay
£1,328k 
£648k 
£1,753k 
£478k 
Annual bonus
LTIP
(£k)
£0.5m
£1m
£1.5m
£2m
£2.5m
£3m
Directors’ Remuneration Report continued
88
IQE Annual Report and Accounts 2024

Approach to recruitment remuneration
External appointments
When hiring or appointing a new Executive Director from outside the Company, the Remuneration Committee 
may make use of all the existing components of remuneration, as follows:
Component
Approach
Base salary
The base salaries of new appointees will be determined by reference to relevant market data, 
experience and skills of the individual, internal relativities and current basic salary. Where new 
appointees have initial basic salaries set below market, any shortfall may be managed with 
phased increases over multiple years subject to the individual’s development in the role.
Pension
New appointees will receive pension contributions or an equivalent cash supplement in line 
with existing policy.
Benefits
New appointees will be eligible to receive benefits which may include those outlined in the 
policy table but may also include additional benefits consistent with market practice in their 
home location (if based outside of the UK).
Annual Bonus
The structure described in the policy table will apply to new appointees with the relevant 
maximum being pro-rated to reflect the proportion of employment over the year. Targets for 
the personal element will be tailored to each executive.
LTIP
New appointees will be granted awards under the LTIP on the same terms as other executives, 
as described in the policy table.
In determining the appropriate remuneration for a 
new Executive Director appointee, the Remuneration 
Committee will take into consideration all relevant 
factors (including nature and quantum of each 
component of remuneration and the jurisdiction from 
which the candidate was recruited) to ensure that 
arrangements are in the best interests of IQE and its 
shareholders. The Remuneration Committee may 
make an award in respect of a new appointment to 
‘buy out’ remuneration arrangements forfeited on 
leaving a previous employer.
This may be granted in addition to the ongoing 
remuneration elements outlined in the table above. In 
doing so, the Remuneration Committee will consider 
relevant factors, including the value and form of the 
award, time to vesting, performance conditions 
attached to awards, and the likelihood of these 
conditions being met.
Any ‘buyout’ awards will typically be made under the 
existing annual bonus and LTIP schemes, although in 
exceptional circumstances the Remuneration 
Committee may make awards using a different 
structure.
Any ‘buyout’ awards would have a fair value no 
higher than the awards forfeited.  
Internal appointments
Internal promotions to the Board will be appointed on 
terms in line with the Policy. Any existing entitlement 
made prior to their appointment to the Board, which 
are not consistent with the Policy may be allowed to 
continue on their original terms.
Non-Executive Directors
In recruiting a new Non-Executive Director, the 
Remuneration Committee will utilise the Policy as set 
out on pages 85 to 90.
Service contracts and treatment for leavers 
and change of control
Executive
Date of service contract
Mark Cubitt (Executive Chair)
7 October 2024
Jutta Meier (CEO & CFO)
22 January 2024
Executive Director service contracts, including 
arrangements for early termination, are carefully 
considered by the Remuneration Committee. Each of 
the Executive Directors has a rolling service contract 
requiring six months’ notice of termination on either 
side. Such contracts contain no specific provision for 
compensation for loss of office, other than an 
obligation to pay for any notice period waived by the 
Company, where pay refers to salary, benefits and 
pension only. Executive Directors’ service contracts 
are available to view at the Company’s registered 
office.
When considering exit payments, the Remuneration 
Committee reviews all potential incentive outcomes 
to ensure they are fair to both shareholders and 
participants. The table below summarises how the 
awards under the annual bonus and LTIP are typically 
treated in different circumstances, with the final 
treatment remaining subject to the Remuneration 
Committee’s discretion:
Governance Report
IQE Annual Report and Accounts 2024
89

Reason for leaving
Calculation of vesting/payment
Annual bonus
Resignation
No annual bonus payable.
‘Good leaver’1
Cash bonuses will typically be paid to the extent that performance objectives have 
been met. Any resulting bonus will typically be pro-rated for time worked. The 
Remuneration Committee retains discretion to vary this treatment in individual 
circumstances.
Change of control
Resignation
Outstanding awards lapse.
LTIP
‘Good leaver’* and 
change of control
The Committee determines whether and to what extent outstanding awards vest 
based on the extent to which performance conditions have been achieved and the 
proportion of the vesting period worked. The Remuneration Committee retains 
discretion to vary this treatment in individual circumstances.
The determination of vesting will be made as soon as reasonably practical following 
the end of the performance period or such earlier date as the Remuneration 
Committee may agree (within 12 months in the event of death).
In the event of a change of control, awards may alternatively be exchanged for new 
equivalent awards in the acquirer where appropriate.
	*
A ‘good leaver’ is a participant ceasing to be employed by the Group by reason of death, disability, ill health, retirement in 
agreement with the Company or any other reason that the Committee determines in its absolute discretion.
External appointments
With the approval of the Board in each case, 
and subject to the overriding requirements of the 
Group, Executive Directors may accept external 
appointments as Non-Executive Directors of other 
companies and retain any fees received. None of the 
Executive Directors received any remuneration from 
external directorships during the year.
Consideration of conditions elsewhere in 
the Company
When making decisions on changes to Executive 
Director remuneration, the Remuneration Committee 
considers changes to pay and conditions across the 
Group. To this end, the Remuneration Committee 
receives a summary of the proposed level of average 
increase for employees prior to the annual salary 
review. For Executive Directors, the Remuneration 
Committee does not formally consult with employees 
on the Executive Remuneration Policy and 
implementation.
Consideration of shareholder views
The Remuneration Committee maintains a regular 
dialogue with the Company’s major shareholders. 
During 2024 and early 2025, the Committee engaged 
extensively with investors on the terms of Executive 
Director and senior leadership remuneration, with the 
feedback received on the quantum and conditions 
used by the Committee in its discussions with the 
Executive Directors.  
Directors’ Remuneration Report continued
90
IQE Annual Report and Accounts 2024

Role of the Committee
The Remuneration Committee has responsibility 
for determining the policy for Executive Director 
remuneration and setting remuneration for the 
Company Chair and Executive Directors.
Key responsibilities
•	 Recommending the remuneration policy for 
Executive Directors, whilst considering the 
remuneration for the Executive Leadership Team 
and remuneration policies for employees below the 
Board
•	 Approving the principles of IQE’s long-term 
incentives and the parameters, including 
performance conditions, for the annual awards 
under long-term incentives
•	 Maintaining appropriate dialogue with shareholders 
on remuneration matters
•	 Preparing the annual remuneration report to 
shareholders to show how the remuneration policy 
has been implemented.
Membership
•	 Victoria Hull – Chair
•	 Carol Chesney
•	 Maria Marced
Changes to Committee Membership
Phil Smith stepped down as a Non-Executive Director 
on 31 December 2024 and left the Committee at the 
same time. 
For details of attendance at Committee meetings 
during the year, please see page 75.
For the biographies of all Committee members, see 
pages 70 to 71. 
Meetings and attendance
The Remuneration Committee met four times in 2024, 
although Committee members also met on a 
number of occasions throughout the year on an 
informal basis. All members attended each meeting. 
The Executive Directors attended meetings to discuss 
proposed performance ratings for the Executive 
Directors and the Executive Leadership Team and 
remuneration policy’s principles for the workforce. The 
Executive Directors did not attend those parts of the 
Committee meetings relating to the Committee’s 
decisions on their own performance and 
remuneration.
Annual Report 
on Remuneration
Remuneration Committee role, 
membership and advice
The primary role of the Remuneration Committee is to 
determine and agree with the Board fair and 
reasonable remuneration arrangements for the 
Chairman and Executive Directors. The main activities 
of the Remuneration Committee during the year were 
as follows:
•	 Evaluated the performance of the former Chief 
Executive Officer;
•	 Determined one-off allowances for the Executive 
Directors and Executive Leadership Team following 
the departure of the previous Chief Executive 
Officer and several other senior leaders in late 2024;
•	 Assessed the annual bonus outcomes for the 
Executive Directors and the Executive Leadership 
Team in 2023;
•	 Reviewed salary increases for IQE’s employees, 
including the Executive Directors and the Executive 
Leadership Team, ensuring fairness with the wider 
workforce;
•	 Determined a one-off share option award to Jutta 
Meier;
•	 Considered proposed workforce policies on 
performance rating and workforce pay increases;
•	 Drafted the Directors’ Remuneration Report; and
•	 Considered benchmarking and advice from 
independent remuneration consultants, Mercer.
The Remuneration Committee’s Terms of Reference 
are set out on the Company’s website at www.iqep.
com.
Mercer provides independent advice to the 
Remuneration Committee. Mercer is a signatory to 
the Code of Conduct for Remuneration Consultants in 
the UK, operated by the Remuneration Consultants 
Group, and which requires all advice to be objective 
and independent (see www.
remunerationconsultantsgroup.com for more 
information).
Fees of £54,898 inclusive of VAT were paid to Mercer 
in respect of services it provided to the Company in 
2024. The Committee considers that Mercer is 
independent, does not have any connections with IQE 
that may impair their independence, and does not 
provide any services to the Group other than its 
advice on remuneration.
Governance Report
IQE Annual Report and Accounts 2024
91

Board changes
Americo Lemos left IQE as Chief Executive Officer on 
28 October 2024. Under the terms of this departure, 
Americo received his contractual payment in lieu of 
notice equal to his basic salary and his accrued 
holiday. The Company remains in discussion with 
Americo Lemos relating to the terms of his departure.
Mark Cubitt, who joined the Board as Non-Executive 
Director and Chair-elect on 8 October 2024, became 
Executive Chair on 29 October 2024. Mark received a 
one-off additional allowance of £87,500 to reflect his 
significantly increased role and workload as Executive 
Chair, which was paid at the end of April 2025, and is 
Single total figure of remuneration for Executive Directors (audited information)
The table below sets out a single figure for the total remuneration received by each Executive Director for the 
year ended 31 December 2024 and the prior year:
Mr Americo Lemos6
Mr Tim Pullen5
Mrs J Meier7,8
Mr M Cubitt9,10
Total
2024
2023
2024
2023
2024
2023
2024
2023
2024
2023
£’000
£’000
£’000 
£’000 
£’000
£’000
£’000
£’000
£’000
£’000
Salary
479
575
 –
160
284 
 – 
22 
 – 
 785
735 
Benefits1
13
16
 –
5
10 
 – 
 – 
 – 
23 
21 
Pension2
47
58
 –
12
23 
 – 
 – 
 – 
70 
70 
Other allowances
–
–
 –
–
21
 –
29
–
50
–
Buy out - cash3
 –
400
 – 
 – 
 – 
 – 
 – 
 – 
 – 
400 
Buy out - shares
 –
–
 – 
 – 
200
 – 
 – 
 – 
 200
 – 
Total fixed 
539 
1,049 
 –
177
538
 – 
51
 – 
1,128
1,226 
Annual bonus
 – 
 – 
 – 
 – 
 – 
 – 
 – 
 – 
 – 
 – 
Long-term incentives4
 –
–
–
 –
–
–
 –
–
–
–
Total variable 
 – 
 – 
 – 
 – 
– 
 – 
–
 – 
–
 – 
 
Total Executive 
Remuneration
539 
1,049 
 – 
177 
538
 – 
51
 – 
1,128
1,226 
 – 
 – 
Non-executive fees
 –
 – 
 – 
 – 
 – 
 – 
3 
 – 
3 
 – 
Total Director 
Remuneration
539 
1,049 
 – 
177 
538
 – 
54
 – 
1,131
1,226 
1.	
Benefits consist of health cover, private medical insurance, life assurance, long term disability insurance, car allowance and travel 
allowance.
2.	 Executive Directors are entitled to participate in a defined contribution scheme, in relation to which the Company contributes 
10% of salary or equivalent cash allowance.
3.	 Cash award of £800,000 agreed as part of Americo Lemos’ recruitment arrangements. £200,000 was paid on 28 February 2022 and 
£200,000 was paid on 31 July 2022. The final £400,000 was paid on 31 January 2023.
4.	 No long-term incentives vested.
5.	 Tim Pullen was entitled to payments in lieu of notice totalling £195,000 which were paid within 2023. Tim Pullen also provided the 
Group with consultancy services within the year ended 31 December 2023 and was paid an aggregate amount of £75,000.
6.	 Americo Lemos’ annual salay was £575,000. The 2024 salary figure reflects his date of termination on 28 October 2024. He was 
entitled to payments in lieu of notice totalling £288,000 of which £96,000 had been paid within the year.
7.	 Jutta Meier received a new starter award on 22 January 2024 with a value of £200,000(995,521 share options) with 50% to vest on 
each of the two subsequent anniversary dates.
8.	 Jutta Meier’s annual salary is £300,000. The 2024 salary figure reflects her start date of 22 January 2024.
9.	 Mark Cubitt took on a Non-executive Director and Chair-elect role for the period from 8 October 2024 to 28 October 2024 with an 
annual salary of £50,000. From 29 October 2024, he became Executive Chair of IQE with an annual salary of £125,000.
10.	 Mark Cubitt recevied a one-off additional allowance of £87,500 to reflect his significantly increased role and workload as Executive 
Chair from November 2024, which will be paid at the end of April 2025. Jutta Meier received a one-off additional allowance of 
£62,500 to reflect her increased role and workload as Chief Executive Officer, which will be paid at the end of April 2025. The amount 
disclosed relfects the pro-rated allowance relating to the year ended 31 December 2024.
based on a three-days-a-week time commitment. 
From 1 May 2025, Mark will be paid £200,000 based on 
a two-days-a week time commitment. Mark does not 
receive any benefits, participate in pension 
arrangements and is not eligible for a bonus.
Jutta Meier, who was appointed to the Board on 
22 January 2024 as Chief Financial Officer, also 
became CEO on following the Executive changes. 
Jutta received a one-off additional allowance of 
£62,500 to reflect her significantly increased role and 
workload as Chief Executive Officer, which was paid 
at the end of April 2025. From 1 May 2025, Jutta will be 
paid £425,000.
 
Directors’ Remuneration Report continued
92
IQE Annual Report and Accounts 2024

Incentive outcomes for year ending 
31 December 2024
Annual bonus
The Committee was engaged in discussions with the 
Executive Directors throughout much of the year on 
the appropriate structure and performance targets 
for the 2024 bonus. By the time Americo Lemos left 
the Group in October 2024, the Committee 
determined that the Group’s financial performance 
for the year was likely to mean that it would not be 
appropriate to pay bonuses to Executive Directors 
and therefore the bonuses for 2024 were nil. 
The Committee is satisfied the policy has operated as 
intended and has concluded that there are no 
circumstances arising where it would need to 
exercise discretion to adjust any of the variable pay 
outcomes.
Long-term incentive plan
The LTIP options that were awarded in 2022 with a 
performance period ending on 31 December 2024 
have not satisfied the applicable financial 
performance measures and have lapsed in that part.
Percentage change in Executive Director 
remuneration
The table below shows the percentage change in 
Executive Director remuneration from the prior year 
compared to the average percentage change in 
remuneration for other employees. The Executive 
Director annual remuneration includes base salary, 
taxable benefits and annual bonus. The percentage 
change in annual remuneration for other employees 
is calculated using the average increase in the 
earnings of all employees who were employed in the 
UK throughout 2023 and 2024. The Committee 
considers the UK employee population to be the most 
appropriate comparison for the CEO vs. other 
employee pay, as all Executive Directors are currently 
employed in the UK, our UK employee population 
includes employees at all levels of the organisation, 
and pay inflation in our other geographies is affected 
by different local market factors.
Relative importance of spend on pay
The graph below shows shareholder distributions (i.e. 
dividends and share buybacks), total employee pay 
expenditure and investment in capital expenditure, 
research & development and intangibles for the 
financial years ended 31 December 2023 and 
31 December 2024.
Employee 
remuneration 
Costs
Distribution to 
shareholders
Investment in 
capex, R&D 
and 
intangibles
2023
£42.1m 
 – 
£18.1m 
2024
£38.6m 
 – 
£14.8m 
Decrease
(8.3%)
n/a
(18.2%)
Americo Lemos
Jutta Meier
Mark Cubitt
All UK Employees
2024
2023
Increase
2024
2023
Increase
2024
2023
Increase
Increase
Salary
479
575
0.0%
284
 –
n/a
22
 –
n/a
3.9%
Benefits and 
pension
60
74
0.0%
33
 –
n/a
–
 –
n/a
53.7%
Annual bonus
 – 
n/a
n/a
 – 
 – 
n/a
–
 –
n/a
n/a
Total
539 
 317 
 – 
`
 22 
 –
1.	
Mark Cubitt took on a Non-Executive Director and Chair-elect role for the period from 8 October 2024 to 28 October 2024 with an 
annual salary of £50,000. From 29 October 2024, he became Executive Chair of IQE with an annual salary of £125,000.
2.	 Jutta Meier’s annual salary is £300,000. The 2024 salary figure reflects her start date of 22 January 2024.
3.	 Americo Lemos left IQE on 28 October 2024. 
Employee 
remuneration 
costs
Distribution to 
shareholders
Investment 
in capex, 
R&D and 
intangibles
£42.1m
£18.1m
2023
2024
(£m)
£38.6m
£14.8m
£10m
£20m
£30m
£40m
£50m
Investment in 
capex, R&D 
and intangibles
Distribution 
to shareholders
Employee 
remuneration 
costs
2024
2023
£m
n/a
38.6m
42.1m
14.8m
18.1m
Governance Report
IQE Annual Report and Accounts 2024
93

Review of past performance
The following graph charts the Total Share Return (‘TSR’) of the Company and the FTSE AIM Index (of which IQE is 
a member) over the period from 1 January 2019 to 31 December 2024. The table below details the Chief 
Executive’s single figure remuneration over the same period.
Historical TSR performance
30
60
90
120
150
2024
2023
2022
2021
2020
2019
IQE
AIM all share
TSR (rebased to 100)
0
Historical CEO Remuneration
2020
2021
2022
2023
2024
CEO single figure of remuneration (£'000)
1,110
507
643
649
579
STI award as a % of maximum opportunity
79%
0%
0%
0%
0%
LTI award as a % of maximum opportunity
0%
0%
0%
0%
0%
The 2024 figure includes Americo Lemos’ remuneration to the date of his termination on 28 October 2024. Jutta 
Meier’s remuneration is included from 29 October 2024 to 31 December 2024.
Scheme interests awarded in 2024 (audited information)
Jutta Meier received a new starter award on 22 January 2024 with a value of £200,000 (995,521 share options) 
with 50% to vest on each of the two subsequent anniversary dates. Jutta was also granted 860,092 nominal 
priced share options with a face value of £103,800 in late 2024.  This award will vest after three years subject to 
the Remuneration Committee’s assessment of the Group’s financial performance over that period. 
Payment on loss of office (audited information)
Americo Lemos, Chief Executive Officer, left the Group on 28 October 2024. Under the terms of his departure, he 
received payment in lieu of notice equal to his basic salary of £287,500 and accrued holiday pay of £53,078.  
The Company remains in discussion with Americo Lemos relating to the terms of his departure.
Payments to past Directors (audited information)
Andrew Nelson received £26,000, under the terms of a consultancy agreement with IQE.
Single total figure of remuneration for Non-Executive Directors (audited information)
The table below sets out a single figure for the total remuneration received by each Non-Executive Director for 
the year ended 31 December 2024 and the prior year:
NED fees
Other
Total
2024
£’000
2023
£’000
2024
£’000
2023
£’000
2024
£’000
2023
£’000
Carol Chesney
50
50
– 
– 
50
50
Sir Derek Jones
– 
50
– 
– 
– 
50
Andrew Nelson
35
75
– 
– 
35
75
Victoria Hull
50
50
–
– 
50
50
Maria Marced
50
– 
–
– 
50
– 
Bami Bastani
50
– 
–
– 
50
– 
Phil Smith
112
125
– 
– 
112
125
Directors’ Remuneration Report continued
94
IQE Annual Report and Accounts 2024

Directors’ interests (audited information)
A table setting out the beneficial interests of the Directors and their families in the share capital of the 
Company as at 31 December 2024 is set out below.
Since 1 January 2024 there have been the following changes in Directors’ interests in shares:
2024
Shares owned outright as 
at 01 Jan 2024 
Shares owned outright as 
at 31 Dec 2024
Shareholding requirement 
% salary/fee
Current shareholding % 
salary/fee
Dr Andrew Nelson
44,867,587 
38,835,514 
n/a
n/a
Americo Lemos
9,837,469 
9,837,469 
200% 
228% 
Jutta Meier
 –
 –
200% 
0%
Mark Cubitt
 –
 –
n/a
0%
Phil Smith
140,000 
140,000 
n/a
n/a
Carol Chesney
90,000 
90,000 
n/a
n/a
Victoria Hull
281,192 
281,192 
n/a
n/a
2023
Shares owned outright as 
at 
Shares owned outright as 
at 31 Dec 2023
Shareholding requirement 
% salary/fee
Current shareholding % 
salary/fee
Dr Andrew Nelson
40,567,234 
44,867,587 
N/A
N/A
Americo Lemos
970,457 
9,837,469 
200% 
419% 
Tim Pullen
 – 
 –
200% 
n/a
Phil Smith
40,000 
140,000 
  – 
 –
Sir Derek Jones
 –
 –
  – 
 –
Victoria Hull
231,192 
281,192 
  – 
 –
Carol Chesney
40,000 
90,000 
  – 
 –
Directors outstanding share awards (audited information)
2024
Unvested and 
subject to 
continued 
performance
Vested but 
unexercised
Vested during 
year
Lapsed during 
year
Exercised 
during year
Americo Lemos
–
 – 
 – 
8,815,591
 – 
Jutta Meier
1,855,613 
 – 
 – 
 – 
 – 
2023 (restated)
Americo Lemos
8,815,591
 – 
 – 
 – 
 – 
Tim Pullen*
3,091,634 
 – 
 – 
 – 
 – 
* All of Tim Pullen’s outstanding share awards have lapsed because they did not satisfy the performance conditions. He resigned as a 
Director on 7 June 2023.
The prior period ‘Unvested and subject to continued performance’ category was disclosed incorrectly in the 2023 annual report and 
accounts for Americo Lemos as 5,940,591 shares. The comparative has been restated to present the correct number of shares.
Summary of shareholder voting at the 2024 AGM
Results of the vote on the Remuneration Report at the IQE’s AGM on 25 June 2024 are as below:
Total number of 
votes
% of votes cast
For (including discretionary)
508,563,445
97.26
Against
14,353,825
2.74
Total votes cast (excluding withheld votes)
522,917,270
100
Votes withheld
63,178
–
Total votes cast (including withheld votes)
522,980,448
100
Governance Report
IQE Annual Report and Accounts 2024
95

Risk Management and Principal Risks
A description of risk management and the principal 
risks facing the business are set out on pages 62 to 
67 of the Annual Report.
Relationship with Suppliers and Customers
Our relationships with our customers are explained 
throughout the Annual Report, particularly on page 
34. Our relationships with our suppliers are specifically 
covered on page 35 of the Annual Report.
The Group seeks to agree favourable credit terms 
with its suppliers where possible.  
Auditor and Disclosure of Information to 
the Auditor
The Company’s auditor throughout the period of this 
Annual Report was KPMG LLP, who were appointed in 
December 2017.
As at the date of the approval of this Annual Report, 
as far as each Director is aware, there is no relevant 
audit information of which the Company’s auditor is 
unaware. Each Director has taken all such steps as he 
or she ought to have taken as a Director in order to 
make himself/herself aware of any relevant audit 
information and to establish that the Company’s 
auditor is aware of that information.
Share Capital
The Company’s share capital is made up of one class 
of ordinary shares of 1p each which each carry one 
vote at general meetings of the Company. Except as 
set out in the Articles of Association or in applicable 
legislation, there are no restrictions on the transfer of 
shares in the Company and there are no restrictions 
on the voting rights in the Company’s shares. The full 
rights and obligations attaching to the Company’s 
ordinary shares, as well as the powers of the 
Directors, are set out in the Company’s Articles of 
Association, a copy of which is available on the 
Company’s website. These can also be obtained from 
Companies House or by writing to the General 
Counsel and Company Secretary.
The Company is not aware of any agreements 
entered into between any shareholders in the 
Company which restrict the transfer of shares or the 
exercise of any voting rights attached to the shares. 
The Company has not acquired any of its own shares 
during 2024 (2023: nil).
Financial Instruments
An explanation of the Group policies on the use of 
financial instruments and financial risk management 
objectives is contained in Note 23 of the financial 
statements.
The Directors present their Annual 
Report and the Financial Statements 
for IQE plc (the “Company”) for the 
year ended 31 December 2024.
Principal Activities and Future Development
The Company is the ultimate holding company of a 
group of subsidiary undertakings (the “Group”) 
engaged in the research, design, development, 
manufacture and sale of compound semiconductor 
materials. An overview of our principal activities and 
an indication of likely future developments in the 
Group is given in the Strategic Report.
Strategic Report
The Strategic Report is set out on pages 2 to 69 of the 
Annual Report.
Directors & Directors’ Interests
Biographies of all of the Company’s Directors at the 
date of this Annual Report, including Non-Executive 
Directors, appear on pages 70 to 71 of the Annual 
Report. Mark Cubitt joined the Board as a Non-
Executive Director and 'Chair-elect' on 8 October 2024 
and became Executive Chair on 29 October 2024. 
Jutta Meier, who joined IQE as Chief Financial Officer 
and a Director on 22 January 2024, also became 
Chief Executive Officer on 29 October 2024.
The beneficial interests of the Directors in the 
Company’s share capital is shown on page 95 of the 
Remuneration Report. 
No Director was beneficially interested in the shares 
of any subsidiary company at any time during the 
year.
In the year to 31 December 2024, no Director had a 
material interest in any contract of significance with 
the Company or any of its subsidiaries.
Insurance and Indemnities
The Group maintains insurance to cover its Directors 
and officers against their costs in defending 
themselves in legal proceedings taken against them 
in that capacity and in respect of damages resulting 
from the unsuccessful defence of any proceedings. In 
addition, to the extent permitted by UK law, the Group 
indemnifies its Directors and officers for liabilities 
arising from such proceedings. Neither the insurance 
nor the indemnity provides cover for situations where 
the Director has acted fraudulently or dishonestly.
Directors’ Report
Directors’ Report
96
IQE Annual Report and Accounts 2024

as a going concern and, therefore, that the group 
and company may be unable to realise their assets 
and discharge their liabilities in the normal course of 
business.  The financial statements do not include 
any adjustments that would result from the basis of 
preparation being inappropriate. Details of the going 
concern assumption and basis of accounting is set 
out in note 2.2 to the financial statements.
Dividends
The Directors do not recommend the payment 
of a dividend (2023: £nil).
Research and Development
The Group continues to devote significant resources 
to the research and development and the updating 
and expansion of its range of products in order to 
remain at the forefront of its world markets. Further 
information on the expenditure on research and 
development is contained in Note 6 of the Financial 
Statements. The amount of research and 
development expenditure capitalised, and the 
amount amortised, in the year, are given in Note 6 of 
the Financial Statements.
Employment Policies
A review of the Group’s employment policies is 
provided on pages 40 to 42 of the  
Annual Report.
Political Donations
The Group has a policy of not making political 
donations and no political donations were made 
during the year (2023: nil).
Climate Change, Greenhouse Gas and 
Energy Emissions
The Group recognises Climate Change is a key 
challenge for the world and is working to minimise its 
environmental impact through a rigorous 
environmental management system, in order to 
minimise greenhouse gas (GHG) and energy 
emissions. We recognise that as a technology leader, 
IQE is in a unique position to be able to improve 
energy efficiency through our products.
Our approach to environmental protection is 
underpinned by our Environmental Policy and 
Environmental Management System, which ensures 
all our sites operate in compliance with ISO 14001 
requirements. We target minimisation of GHG and 
energy emissions, as well as focusing on waste, water 
and recycling initiatives.
Details of our GHG and energy emissions figures, as 
well as the measures we are undertaking to promote 
energy efficiency, including incorporating energy-
saving features into facility design, can be found on 
pages 48 to 49.
Details of our approach to climate-related risks and 
opportunities can be found on page 50.
Mark Cubitt
Executive Chair, IQE plc
12 May 2025
Substantial shareholdings
As at 30 April 2025, the following are beneficial 
interests of 3% or more (where the holding is direct) or 
of 5% or more (where the holding is indirect) which 
have been notified to the Directors of the Company.
Shareholder
Shares
Issued Capital 
%
Lombard Odier 
Investment Managers
143,680,429
14.79
Canaccord Genuity 
Wealth Management
92,591,748
9.53
T Rowe Price 
Global Investments
77,842,802
8.02
Artisan Partners
74,179,949
7.64
Hargreaves Lansdown
71,476,572
7.36
Mr Richard Griffiths
60,891,441
6.27
Interactive Investor
59,085,719
6.08
Dr Andrew W Nelson
38,835,514
4.00
M&G Investments
38,159,663
3.93
	*
Source: Equiniti Investor Analytics
Going Concern
In the twelve months to 31 December 2024, reported 
revenue has remained subdued at £118,034,000, the 
Group made a loss after tax for the year of £38,178,000 
and adjusted net debt increased to £18,800,000.
In assessing the going concern basis of preparation, 
the Directors have considered the period to 
30 September 2026 (‘the going concern assessment 
period’) to align with the expiry of the extended RCF 
and extended term date of the CLN. The Directors have 
prepared financial projections containing both a ‘base 
case’ and a ‘severe but plausible downside case’.
In both the base and severe but plausible downside 
case, the Group is forecast to maintain liquidity 
headroom and to comply with its minimum EBITDA 
and minimum liquidity covenants up to the date of 
expiry of the RCF on 1 September 2026 or redemption 
of the CLN on 13 September 2026.
The Directors, as part of the announced Strategic 
Review, plan to raise cash from the divestment of 
Group assets to ensure that the Group has a strong 
capital position to further invest in its core operations 
and to enable the Group to refinance or repay its loan 
facilities. In the first instance, this plan includes 
divestment options for an IPO or full sale of the Group’s 
Taiwan operations and a comprehensive Strategic 
Review of all other Group assets and operations. 
Whilst the Directors are confident that the divestment 
of IQE Taiwan is progressing as planned and will 
realise sufficient cash, they acknowledge that a 
delayed outcome of the potential sale or IPO of the 
non-core asset could impact the availability of 
sufficient funding for the Group’s needs beyond the 
maturity of its existing facilities. 
The Directors have concluded that the successful 
completion of the planned sale of non-core assets 
and/or availability of sufficient, appropriate funding 
for the group’s needs beyond the maturity of existing 
facilities represents a material uncertainty related to 
events or conditions that may cast significant doubt 
on the Group’s and the company’s ability to continue 
Governance Report
IQE Annual Report and Accounts 2024
97

statements that are free from material misstatement, 
whether due to fraud or error, and have general 
responsibility for taking such steps as are reasonably 
open to them to safeguard the assets of the Group 
and to prevent and detect fraud and other 
irregularities.
The Directors have decided to prepare voluntarily a 
Directors’ Remuneration Report in accordance with 
Schedule 8 to The Large and Medium-sized 
Companies and Groups (Accounts and Reports) 
Regulations 2008 made under the Companies Act 
2006, as if those requirements applied to the 
Company. The Directors have also decided to 
prepare voluntarily a Corporate Governance 
Statement as if the Company were required to 
comply with the Listing Rules and the Disclosure 
Guidance and Transparency Rules of the Financial 
Conduct Authority in relation to those matters.
Under applicable law and regulations, the Directors 
are also responsible for preparing a Strategic Report 
and a Directors’ Report that complies with that law 
and those regulations.
The Directors are responsible for the maintenance 
and integrity of the corporate and financial 
information included on the Company’s website. 
Legislation in the UK governing the preparation and 
dissemination of financial statements may differ from 
legislation in other jurisdictions.
We consider the Annual Report and financial 
statements, taken as a whole, is fair, balanced and 
understandable and provides the information 
necessary for shareholders to assess the Group’s 
position and performance, business model and 
strategy.
Approved by the Board and signed on its behalf by:
Mark Cubitt
Executive Chair, IQE plc.
12 May 2025
The Directors are responsible for preparing the 
Annual Report and the Group and parent Company 
financial statements in accordance with applicable 
law and regulations.
Company law requires the Directors to prepare 
Group and parent Company financial statements for 
each financial year. Under the AIM Rules of the 
London Stock Exchange, they are required to prepare 
the Group’s financial statements in accordance with 
UK adopted international accounting standards and 
applicable law and they have elected to prepare the 
parent Company financial statements on the same 
basis.
Under company law, the Directors must not approve 
the financial statements unless they are satisfied that 
they give a true and fair view of the state of affairs of 
the Group and parent Company and of the Group’s 
profit or loss for that period. In preparing each of the 
Group and parent Company financial statements, the 
Directors are required to:
•	 Select suitable accounting policies and then apply 
them consistently;
•	 Make judgements and estimates that are 
reasonable, relevant and reliable;
•	 State whether they have been prepared in 
accordance with UK adopted international 
accounting standards;
•	 Assess the Group and parent Company’s ability to 
continue as a going concern, disclosing, as 
applicable, matters related to going concern; and
•	 Use the going concern basis of accounting unless 
they intend either to liquidate the Group or the 
parent Company or to cease operations, or have 
no realistic alternative but to do so.
The Directors are responsible for keeping adequate 
accounting records that are sufficient to show and 
explain the parent Company’s transactions and 
disclose with reasonable accuracy at any time the 
financial position of the parent Company and enable 
them to ensure that its financial statements comply 
with the Companies Act 2006. They are responsible 
for such internal control as they determine is 
necessary to enable the preparation of financial 
Statement of Directors’ 
responsibilities in 
respect of the Annual 
Report and the Financial 
Statements 
Statement of Directors’ responsibilities
98
IQE Annual Report and Accounts 2024

Non-Financial and Sustainability Information Statement
Non-Financial and 
Sustainability 
Information Statement
The table below outlines how we meet the non-financial and reporting requirements set out in the Companies 
Act 2006. Our business model is set out on pages 12 and 13. Our vision and mission statements are described 
on page 1, and on pages 37 to 49 we set out how we act as a responsible business.
Requirement
Information necessary to understand our business
Key policies
Environmental Matters
Our Group policies that support environmental 
matters help keep our people and 
communities safe.
Sustainability - see pages 48.
Task Force on Climate-related Financial 
Disclosures - see pages 50 to 60.
Environmental Policy
Code of Conduct
Colleagues
IQE promotes a safe working culture where all 
of our colleagues, whichever their diverse 
background, feel welcomed and belong. Our 
HR and ethics policies help to support this 
ambition.
Code of Conduct
Health and Safety Policies
Dignity at Work Policy
Paternity Leave Policy
Whistleblowing Policy
Flexible Working Policy
Hybrid Working Policy
Social Matters
Our Code of Conduct helps our people to do 
the right thing and is a framework for 
responsible business practices.
Ethical standards - page 39.
Community engagement - page 43.
Health and Safety - pages 46 to 47.
Environmental performance - page 48 to 49.
Code of Conduct
Environment Policy
Health and Safety Policies
Human Rights
We consider our value chain when 
considering human rights, including our own 
operations, suppliers and customers.
Suppliers - page 38.
Anti-Slavery Statement - page 39.
Whistleblowing and Speak-Up Statement - 
page 39.
Code of Conduct
Anti-Slavery Statement
Data Protection Policy
Whistleblowing Policy
Anti-corruption and 
anti-bribery
Our Group global policies support compliance 
with international laws relating to anti-bribery 
and corruption.
Ethical standards - page 39.
Code of Conduct
Anti-Bribery and Corruption 
Policy
Gifts and Hospitality Policy
Climate-related 
financial disclosures
We are committed to reducing the impact of 
our operations on the environment.
TCFD Report - pages 50 to 60.
Environment Policy
Governance Report
IQE Annual Report and Accounts 2024
99

1. Our opinion is unmodified 
We have audited the financial statements of IQE 
plc (“the Company”) for the year ended 31 
December 2024 which comprise the 
consolidated income statement, consolidated 
statement of comprehensive income, 
consolidated balance sheet, consolidated 
statement of changes in equity, consolidated 
cash flow statement, parent company balance 
sheet, parent company statement of changes in 
equity, parent company cash flow statement and 
the related notes, including the accounting 
policies in note 2. 
In our opinion: 
— the financial statements give a true and fair 
view of the state of the Group’s and of the 
parent Company’s affairs as at 31 December 
2024 and of the Group’s loss for the year 
then ended; 
— the Group financial statements have been 
properly prepared in accordance with UK-
adopted international accounting standards; 
— the parent Company financial statements 
have been properly prepared in accordance 
with UK-adopted international accounting 
standards and as applied in accordance with 
the provisions of the Companies Act 2006; 
and 
— the financial statements have been prepared 
in accordance with the requirements of the 
Companies Act 2006. 
Basis for opinion 
We conducted our audit in accordance with 
International Standards on Auditing (UK) (“ISAs 
(UK)”) and applicable law. Our responsibilities 
are described below. We have fulfilled our 
ethical responsibilities under, and are 
independent of the Group in accordance with, 
UK ethical requirements including the FRC 
Ethical Standard as applied to listed entities. We 
believe that the audit evidence we have 
obtained is a sufficient and appropriate basis for 
our opinion.
Independent 
auditor’s report
to the members of IQE plc 
Overview
Materiality: 
group financial 
statements as a 
whole
£0.96m (2023:£0.90m)
0.81% (2023: 0.8%) of 
revenue
Coverage
93% of group revenue
Key audit matters 
vs 2023
Recurring risks
Going concern
▲
Carrying amount of 
Wireless and 
Photonics cash 
generating units
▲
Revenue recognition
▲
Parent 
Company Only
Recoverability of 
parent company’s 
investments in 
subsidiaries
◄►
100
IQE Annual Report and Accounts 2024

2.      Material uncertainty related to going concern 
The risk
Our response
Going concern
Risk vs 2023: ▲
Refer to pages 78 and 79 
(Audit committee report)
We draw attention to note 
2.2 to the financial 
statements which indicates 
that there is uncertainty 
over the successful 
completion of the planned 
sale of non-core assets 
and / or availability of 
sufficient, appropriate 
funding for the group’s 
needs beyond the maturity 
of existing facilities. These 
events and conditions, 
along with the other 
matters explained in note 
2.2, constitute a material 
uncertainty that may cast 
significant doubt on the 
group’s and the parent 
company’s ability to 
continue as a going 
concern.  
Our opinion is not 
modified in respect of this 
matter.
Disclosure quality
The financial statements explain how 
the Board has formed a judgement 
that it is appropriate to adopt the 
going concern basis of preparation for 
the Group and parent company.
That judgement is based on an 
evaluation of the inherent risks to the 
Group’s and Company’s business 
model and how those risks might 
affect the Group’s and Company’s 
financial resources or ability to 
continue operations until at least 30 
September 2026.
There is little judgement involved in 
the directors’ conclusion that risks and 
circumstances described in note 2.2  
to the financial statements represent a 
material uncertainty over the ability of 
the group and company to continue as 
a going concern until at least 30 
September 2026.
However, clear and full disclosure of 
the facts and the directors’ rationale 
for the use of the going concern basis 
of preparation, including that there is 
a related material uncertainty, is a key 
financial statement disclosure and so 
was the focus of our audit in this area.  
Auditing standards require that to be 
reported as a key audit matter.
Our procedures included:  
— Assessing transparency: We considered 
whether the going concern disclosures in note 
2.2 to the financial statements give a full and 
accurate description of the directors’ 
assessment of going concern, including the 
identified risks, dependencies and related 
sensitivities. 
Our assessment of management’s going concern 
assessment also included:
— Funding assessment: We reviewed the lender 
agreements, including the Revolving Credit 
facility (RCF) and the Convertible Loan Note 
(CLN) to understand the terms including 
covenant requirements, maturity and any 
restrictions in the use of funds. We inspected 
confirmation of the waiver of the December 
2024 covenant requirements by the Group’s 
lenders in that month.
— Test of detail:  We used our modelling 
specialists to assess the integrity of the 
financial model used by the Board to assess 
the base case projections and the various 
scenarios, including the severe but plausible 
downside forecasts.
— Historical comparisons: We considered 
forecasting accuracy when preparing forecast 
data by performing retrospective review of 
historical forecasts to actuals. 
— Benchmarking assumptions: We benchmarked 
the key assumptions behind the cashflow 
forecasts to customer forecasts where 
available. We also benchmarked to wider 
market commentary and market research 
reports. 
— Sensitivity analysis:   We assessed the 
downside sensitivities to ensure that these 
were consistent with our knowledge of the 
business, the associated risk exposure and we 
considered the most recent trading results to 
form a holistic view of the Group. We 
considered sensitivities over the level of 
available financial resources indicated by the 
Group’s financial forecasts taking account of 
plausible, but not unrealistic, adverse effects 
which could arise from these risks, both 
individually and collectively. 
— Evaluating Director’s intent: We evaluated the 
achievability of the mitigating actions the 
Directors consider they would take to improve 
the Group’s financial position, should further 
risks materialise, which include delays on 
discretionary expenditure and delays to certain 
software upgrade expenditure, taking into 
account the extent to which the Directors are 
able to control the timing and outcome.
Governance Report
IQE Annual Report and Accounts 2024
101

The risk
Our response
Carrying amount of Wireless and 
Photonics cash generating units 
(Wireless - £88.3 million; 2023: 
£89.1 million 
Photonics - £121.2 million; 2023: 
£131.9 million
Wireless Impairment - £3.1m; 
2023:nil)
Risk vs 2023: ▲
Refer to page 79 (Audit 
committee report), note 2.5 and 
2.8 (accounting policy), note 3.1 
(accounting estimate) and note 
13 (financial disclosures)
Forecast based assessment
The carrying amount of the Wireless 
and Photonics cash generating units 
are at an increased risk of 
irrecoverability due to the impact of 
current market conditions on the 
timing and level of cashflows. 
The estimated recoverable amount is 
subjective due to the inherent 
uncertainty involved in forecasting 
future revenue growth and applying 
an appropriate discount factor.
The current market capitalisation is 
below total net assets. This is 
therefore a potential impairment 
indicator which also increases the 
associated risk. 
The effect of these matters is that 
there is a high degree of uncertainty 
and involvement of subjective key 
assumptions, with a potential range 
of reasonable outcomes greater than 
our materiality for the financial 
statements as a whole, and possibly 
many times that amount. 
We also identified a fraud risk related 
to the estimation of the recoverable 
amount of the Wireless and Photonics 
cash generating units in response to 
possible pressures on the Group 
arising from the announced strategic 
review.
The financial statements (note 13) 
disclose the sensitivities estimated by 
the Group. 
Our procedures included: 
— Benchmarking assumptions: Comparing 
the Group’s assumptions, in particular 
those relating to forecast revenue growth 
to externally derived data, such as 
independent market reports and 
customer communications where 
available. 
— Valuation expertise: We derived a 
reasonable range of appropriate discount 
rates independently, with the support of 
our valuation specialist and compared 
these with those calculated by the Group.
— Historical comparisons: We considered 
forecasting accuracy when preparing 
forecast data by performing retrospective 
review of historical forecasts to actuals 
for revenue growth.  
— Sensitivity analysis: We performed 
reasonably foreseeable scenario analysis 
on the discount rate and growth 
assumptions included in the forecast. 
— Personnel interviews: We held 
discussions with the Group’s Chief 
Technology officer and the Group Chief 
Revenue Officer to corroborate our 
understanding of future uses for 
technologies and routes to market. 
— Comparing valuations: Comparing the 
sum of the discounted cash flows to the 
Group’s market capitalisation to assess 
the reasonableness of those cashflows 
and 
— Assessing transparency: Assessing 
whether the Group’s disclosures about 
the sensitivity of the outcome of 
impairment assessment to changes in key 
assumptions reflected the risks inherent 
in the recoverable amount of the Wireless 
and Photonics cash generating units.
We performed the tests above rather than 
seeking to rely on any of the Group’s 
controls because the nature of the balance is 
such that we would expect to obtain audit 
evidence primarily through the detailed 
procedures described. 
3.    Other key audit matters: our assessment of risks of material misstatement
Key audit matters are those matters that, in our professional judgement, were of most significance in the audit of the financial 
statements and include the most significant assessed risks of material misstatement (whether or not due to fraud) identified by 
us, including those which had the greatest effect on: the overall audit strategy; the allocation of resources in the audit; and 
directing the efforts of the engagement team.  These matters were addressed in the context of our audit of the financial 
statements as a whole, and in forming our opinion thereon, and we do not provide a separate opinion on these matters.  Going 
concern is a significant key audit matter and is described in section 2 of our report. In arriving at our audit opinion above, the 
other key audit matters, in decreasing order of audit significance, were as follows (unchanged from 2023): 
102
IQE Annual Report and Accounts 2024

3. Other key audit matters: our assessment of risks of material misstatement
(continued)
Revenue recognition
(£118.0 million; 2023: £115.3 
million)
Risk vs 2023: ▲
Refer to page 79 (Audit 
committee report) note 2.22 
(accounting policy) and note 4.3 
(financial disclosures). 
Fraud risk related to revenue 
recognised in the incorrect period
Due to the Group’s continued 
subdued performance there are 
pressures on achieving internal and 
external expectations of results 
because of the announcement of the 
Strategic review, in particular 
Revenue and Adjusted EBITDA 
targets, therefore there may be an 
incentive to accelerate or delay the 
recognition of revenue in the cut-off 
period.    
Our procedures included: 
— Test of detail: We agreed a sample of 
sales transactions arising around the year 
end based on their financial significance, 
to purchase order and external delivery 
confirmation, to assess whether the 
performance obligation has been met and 
that revenue has not been over- or 
understated in the year. 
— Test of detail: We agreed a sample of 
post year end credit notes, based on their 
financial significance, to sales order and 
external delivery confirmation, to assess 
that revenue has not been overstated to 
date. 
— Test of detail: We agreed a sample of 
inventory quantities used in the year end 
revenue recognition adjustment to 
inventory and purchase order.
We performed the tests above rather than 
seeking to rely on any of the Group’s 
controls because the nature of the balance is 
such that we would expect to obtain audit 
evidence primarily through the detailed 
procedures described. 
Parent company: Recoverability 
of parent company’s 
investments in subsidiaries 
(Investments: £80.6 million; 
2023: £60.2 million)
Reversal of impairment: £18.6m 
(2023: nil)
Risk vs 2023: ◄►
Refer to note 2.29 (accounting 
policy) and note 16 (financial 
disclosures). 
Low risk, high value 
The carrying amount of the parent 
company’s investments in 
subsidiaries represents 39% (2023: 
26%) of the company’s total assets. 
The recoverable amount of the 
investments is subjective due to the 
inherent uncertainty involved in 
forecasting and discounting future 
cashflows however, this is not 
considered to be at a high risk of 
significant misstatement. Due to their 
size in the context of the parent 
company financial statements, this is 
considered to be the area which has 
the greatest impact on the parent 
company audit. 
Our procedures included: 
— Test of detail: We compared the carrying 
amount of 100% of investments to the net 
assets of the relevant subsidiary included 
within the group consolidation to identify  
whether the net asset value, being an 
approximation of the minimum 
recoverable amount, was in excess of 
their carrying amount and assessed 
whether those subsidiaries have 
historically been profit-making.
— Assessing subsidiary audit: We assessed 
the work performed by the subsidiary 
audit teams on all of those subsidiaries 
and considered the results of that work 
on those subsidiaries’ profits and net 
assets.
— Comparing valuations: For the 
investments where the carrying amount 
exceeded the net asset value, we 
compared their carrying amount with the 
expected value of the business based on 
the subsidiaries’ forecast profitability and 
cashflows. 
We performed the tests above rather than 
seeking to rely on any of the Group’s 
controls because the nature of the balance is 
such that we would expect to obtain audit 
evidence primarily through the detailed 
procedures described. 
Governance Report
IQE Annual Report and Accounts 2024
103

Group total assets 
99
1
99%
4. Our application of materiality and an overview of the scope of 
our audit
Materiality for the Group financial statements as a whole was set 
at £0.96m (2023: £0.90 million), determined with reference to a 
benchmark of Group revenue of which it represents 0.81% (2023: 
0.80%). We consider total Group revenue to be the most 
appropriate benchmark as it provides a more stable measure 
year on year than Group loss before tax because of significant 
fluctuations in recent years.   
Materiality for the parent Company financial statements as a 
whole was set at £0.95m (2023: £0.93 million), determined with 
reference to a benchmark of Company total assets, of which it 
represents 0.45% (2023: 0.39%). 
In line with our audit methodology, our procedures on 
individual account balances and disclosures were performed to 
a lower threshold, performance materiality, so as to reduce to 
an acceptable level the risk that individually immaterial 
misstatements in individual account balances add up to a 
material amount across the financial statements as a whole. 
Performance materiality was set at 65% (2023: 65%) of 
materiality for the financial statements as a whole, which 
equates to £624,000 (2023: £611,000) for the Group and 
£617,000 (2023: £604,000) for the parent company. We applied 
this percentage in our determination of performance 
materiality based on the level of identified misstatements and 
control deficiencies identified in the prior year. 
We agreed to report to the Audit Committee any corrected or 
uncorrected identified misstatements exceeding £43,200 (2023: 
£47,000), in addition to other identified misstatements that 
warranted reporting on qualitative grounds.
Overview of the scope of our audit
This year, we applied the revised group auditing standard in 
our audit of the consolidated financial statements. The revised 
standard changes how an auditor approaches the identification 
of components, and how the audit procedures are planned and 
executed across components.
In particular, the definition of a component has changed, 
shifting the focus from how the entity prepares financial 
information to how we, as the group auditor, plan to perform 
audit procedures to address group risks of material 
misstatement ("RMMs"). Similarly, the group auditor has an 
increased role in designing the audit procedures as well as 
making decisions on where these procedures are performed 
(centrally and/or at component level) and how these 
procedures are executed and supervised. As a result, we assess 
scoping and coverage in a different way and comparisons to 
prior period coverage figures are not meaningful. In this report 
we provide an indication of scope coverage on the new basis.
We performed risk assessment procedures to determine which 
of the Group’s components are likely to include risks of 
material misstatement to the Group financial statements and 
which procedures to perform at these components to address 
those risks.
In total, we identified 18 components, having considered our 
evaluation of the Group’s operational structure and our ability 
to perform audit procedures centrally.
Of those, we identified 5 quantitatively significant components 
which contained the largest percentages of either total revenue 
or total assets of the Group, for which we performed audit 
procedures.
We also identified 1 component as requiring special audit 
consideration, owing to risks related to revenue and related 
accounts, costs and inventory. 
Additionally, having considered qualitative and quantitative 
factors, we selected 3 components with accounts and/or 
disclosures contributing to the specific RMMs of the Group 
financial statements. 
Group Revenue 
£118.0m (2023: £115.3m)
Group materiality
£0.96m (2023: £0.90m)
Revenues
Group materiality
£960,000
Whole financial
statements materiality (2023: 
£900,000)
£624,000
Whole financial
statements performance 
materiality (2023: £611,000)
£696,000
Range of materiality at 7 
components (£264,000 to 
£696,000) 
(2023: £376,000 to £752,000)
£43,200
Misstatements reported to the 
audit committee (2023: 
£47,000)
Group revenue
93
7
93%
Our audit procedures covered the following percentage of Group revenue.
We performed audit procedures in relation to 
components that accounted for the following 
percentages.
Group loss before tax
78
22
78%
104
IQE Annual Report and Accounts 2024

4. Our application of materiality and an overview of the scope of 
our audit (continued)
Accordingly, we performed audit procedures on 9 components, 
of which we involved component auditors in performing the 
audit work on one component. We also performed the audit of 
the parent Company.
The Group auditor set the component materialities which 
ranged from £264,000 to £696,000 (2023: £376,000 to £752,000) 
having regard for the mix of size and risk profile of the Group 
across the components. 
Our audit procedures covered 93% of Group revenue and we 
performed audit procedures in relation to components that 
accounted for 78% of Group loss before tax and 99% of Group 
total assets .
For the remaining components for which we performed no 
audit procedures, no component represented more than 5% of 
Group total revenue, Group profit before tax or Group total 
assets. We performed analysis at an aggregated Group level to 
re-examine our assessment that there is not a reasonable 
possibility of a material misstatement in these components.
The Group auditor issued audit instructions to component 
auditors on the scope of their work, including minimum 
procedures to perform in their audit of revenue. 
As part of establishing the overall Group audit strategy and 
plan, we conducted the risk assessment and planning 
discussion meeting with the component auditor to discuss 
Group audit risks relevant to the component, including the key 
audit matter in respect of revenue recognition.
We visited one component auditor in Taiwan to assess the 
audit risk and strategy. Video and telephone conference 
meetings were also held with the component auditor. At these 
visits and meetings, the results of planning procedures and 
further audit procedures communicated to us were discussed 
in more detail, and any further work required by us was then 
performed by the component auditor.
We inspected the work performed by the component auditor 
for the purpose of the Group audit and evaluated the 
appropriateness of conclusions drawn from the audit evidence 
obtained and consistencies between communicated findings 
and work performed, with a particular focus on work related to 
revenue recognition and journal entries.
Impact of controls on our audit
The Group has three main IT systems relevant to our group 
audit, being:
•
ERP system used by one out-of-scope component;
•
ERP system used by all remaining in-scope components; 
and
•
Inventory management system used for managing itemised 
inventory with quantities and recording movements.
We obtained an understanding of these IT systems in the 
current period and identified that the Group do not rely on 
automated controls in their financial reporting process. Our 
knowledge of the general control environment obtained in the 
current year and previous audits indicated that we would be 
unlikely to obtain the required evidence to support reliance on 
IT controls. In addition, whilst the majority of components use 
the same ERP system, a number of versions of that ERP system 
is used within the Group and therefore there are multiple 
instances of similar controls.  As a result, we did not plan to 
rely on the Group’s general IT controls in our audit and instead 
planned additional substantive testing.
Manual control deficiencies, including in relation to journals, 
were identified across the Group which, following incremental 
risk assessment, didn’t lead to significant changes to our 
planned audit approach or to identification of additional fraud 
risks, but resulted in a primarily substantive audit approach 
being undertaken in all areas of the audit. 
We adopted a data-oriented approach to testing journals across 
all components and in one component used data and analytical 
routines to test revenue. Given that we did not rely on IT controls, 
a manual testing approach was performed over the completeness 
and accuracy of data used in these routines and in respect of 
system data used in our substantive testing on other 
transactional areas.
5. Going concern basis of preparation
The directors have prepared the financial statements on the going 
concern basis as they do not intend to liquidate the Group or the 
Company or to cease their operations, and as they have 
concluded that the Group’s and the Company’s financial position 
means that this is realistic for the period to 30 September 2026 
(“the going concern period”). As stated in section 2 of our report, 
they have also concluded that there is a material uncertainty 
related to going concern. 
An explanation of how we evaluated management’s assessment 
of going concern is set out in section 2 of our report. Our 
conclusions based on this work:
• we consider that the directors’ use of the going concern basis of 
accounting in the preparation of the financial statements is 
appropriate;
• we have nothing material to add or draw attention to in relation 
to the directors’ statement on pages 117 to 118 to the financial 
statements on the use of the going concern basis of accounting, 
and their identification therein of a material uncertainty over the 
Group and Company’s ability to continue to use that basis for the 
going concern period.
6. Fraud and breaches of laws and regulations – ability to detect
Identifying and responding to risks of material misstatement 
due to fraud
To identify risks of material misstatement due to fraud (“fraud 
risks”) we assessed events or conditions that could indicate an 
incentive or pressure to commit fraud or provide an opportunity 
to commit fraud. Our risk assessment procedures included:
— Enquiring of directors, the Audit Committee and the 
Company Secretary and inspection of policy documentation as 
to the Group’s high-level policies and procedures to prevent 
and detect fraud, including the Group’s channel for 
“whistleblowing”, as well as whether they have knowledge of 
any actual, suspected or alleged fraud.
— Reading Board, Audit Committee and Remuneration 
Committee meeting minutes. 
— Considering remuneration incentive schemes and 
performance targets for directors and management including 
bonus targets and Long Term Incentive Plan EPS growth targets 
for director and management remuneration.
— Consultation with our own forensic professionals regarding 
the identified fraud risks and the design of the audit procedures 
planned in response to these. 
We communicated identified fraud risks throughout the audit 
and remained alert to any indications of fraud throughout the 
audit. This included communication from the Group auditor to 
the component auditor of relevant fraud risks identified at the 
Group level and requesting the component auditor performing 
procedures at the component level to report to the Group 
auditor any identified fraud risk factors or identified or 
suspected instances of fraud. 
As required by auditing standards, and taking into account our 
overall knowledge of the control environment, possible 
pressures to meet profit targets and revisions to market 
guidance, we perform procedures to address the risk of 
management override of controls and the risk of fraudulent 
revenue recognition, in particular the risk that revenue is 
overstated or understated through recording revenue in the 
wrong period. 
We also identified a fraud risk related to the carrying amount of 
Wireless and Photonics cash generating units in response to the 
Group’s announced strategic review.
Further detail in respect of this risk is set out in the key audit 
matter disclosures in section 3 of this report. 
Governance Report
IQE Annual Report and Accounts 2024
105

6. Fraud and breaches of laws and regulations – ability 
to detect (continued)
Identifying and responding to risks of material 
misstatement due to fraud (continued) 
In determining the audit procedures we took into 
account the results of our evaluation and testing of the 
operating effectiveness of some of the Group-wide fraud 
risk management controls. We also performed 
procedures including: 
— Identifying journal entries to test at selected 
components based on risk criteria and comparing the 
identified entries to supporting documentation. These 
included those posted by senior finance management 
and those posted to revenue and cash accounts with an 
unusual account pairing. 
— Assessing whether the judgements made in making 
accounting estimates are indicative of a potential bias. 
Identifying and responding to risks of material 
misstatement due to non-compliance with laws and 
regulations
We identified areas of laws and regulations that could 
reasonably be expected to have a material effect on the 
financial statements from our general commercial and 
sector experience and through discussion with the 
directors and others within management (as required by 
auditing standards) and discussed with the directors and 
others within management the policies and procedures 
regarding compliance with laws and regulations.  
We communicated identified laws and regulations 
throughout our team and remained alert to any 
indications of non-compliance  throughout the audit .  
This included communication from the Group audit 
team to the one component auditor of relevant laws and 
regulations identified at the Group level, and a request 
for the component auditor to report to the Group audit 
team any instances of non-compliance with laws and 
regulations that could give rise to a material 
misstatement at the Group level.
The potential effect of these laws and regulations on the 
financial statements varies considerably.
Firstly, the Group is subject to laws and regulations that 
directly affect the financial statements including financial 
reporting legislation (including related companies 
legislation), distributable profits legislation and taxation 
legislation, and we assessed the extent of compliance 
with these laws and regulations as part of our 
procedures on the related financial statement items. 
Secondly, the Group is subject to many other laws and 
regulations where the consequences of non-compliance 
could have a material effect on amounts or disclosures 
in the financial statements, for instance through the 
imposition of fines or litigation. We identified the 
following areas as those most likely to have such an 
effect: health and safety and hazardous material 
legislation, environmental legislation, export control 
legislation, anti-bribery, employment law and certain 
aspects of company legislation, recognising the nature 
of the Group’s global manufacturing and development 
activities and its legal form. Auditing standards limit the 
required audit procedures to identify non-compliance 
with these laws and regulations to enquiry of the 
directors and other management and inspection of 
regulatory and legal correspondence, if any. Therefore if 
a breach of operational regulations is not disclosed to us 
or evident from relevant correspondence, an audit will 
not detect that breach.
Context of the ability of the audit to detect fraud or 
breaches of law or regulation
Owing to the inherent limitations of an audit, there is an 
unavoidable risk that we may not have detected some 
material misstatements in the financial statements, even 
though we have properly planned and performed our 
audit in accordance with auditing standards. For 
example, the further removed non-compliance with laws 
and regulations is from the events and transactions 
reflected in the financial statements, the less likely the 
inherently limited procedures required by auditing 
standards would identify it.  
In addition, as with any audit, there remained a higher 
risk of non-detection of fraud, as fraud may involve 
collusion, forgery, intentional omissions, 
misrepresentations, or the override of internal controls. 
Our audit procedures are designed to detect material 
misstatement. We are not responsible for preventing 
non-compliance or fraud and cannot be expected to 
detect non-compliance with all laws and regulations.
7. We have nothing to report on the other information in 
the Annual Report
The directors are responsible for the other information 
presented in the Annual Report together with the 
financial statements. Our opinion on the financial 
statements does not cover the other information and, 
accordingly, we do not express an audit opinion or, 
except as explicitly stated below, any form of assurance 
conclusion thereon.
Our responsibility is to read the other information and, 
in doing so, consider whether, based on our financial 
statements audit work, the information therein is 
materially misstated or inconsistent with the financial 
statements or our audit knowledge. Based solely on that 
work we have not identified material misstatements in 
the other information.
Strategic report and directors’ report 
Based solely on our work on the other information: 
— we have not identified material misstatements in the 
strategic report and the directors’ report; 
— in our opinion the information given in those reports 
for the financial year is consistent with the financial 
statements; and 
— in our opinion those reports have been prepared in 
accordance with the Companies Act 2006. 
Directors’ remuneration report
In addition to our audit of the financial statements, the 
directors have engaged us to audit the information in 
the Directors’ Remuneration Report that is described as 
having been audited, which the directors have decided 
to prepare as if the Company were required to comply 
with the requirements of Schedule 8 to The Large and 
Medium-sized Companies and Groups (Accounts and 
Reports) Regulations 2008 (SI 2008 No. 410) made under 
the Companies Act 2006. 
In our opinion the part of the Directors’ Remuneration 
Report to be audited has been properly prepared in 
accordance with the Companies Act 2006, as if those 
requirements applied to the Company.
Disclosures of emerging and principal risks and longer-
term viability 
We are required to perform procedures to identify 
whether there is a material inconsistency between the 
directors’ disclosures in respect of emerging and 
principal risks and the viability statement, and the 
financial statements and  our audit knowledge. 
106
IQE Annual Report and Accounts 2024

7. We have nothing to report on the other information in the
Annual Report (continued)
Based on those procedures, other than the material
uncertainty related to going concern referred to above we
have nothing further material to add or draw attention to in
relation to:
— the directors’ confirmation within the Viability Statement
on page 68 that they have carried out a robust assessment 
of the emerging and principal risks facing the Group, 
including those that would threaten its business model, 
future performance, solvency and liquidity; 
— The principal risks and uncertainties disclosures describing 
these risks and how emerging risks are identified, and 
explaining how they are being managed and mitigated; and 
— the directors’ explanation in the Viability Statement of how 
they have assessed the prospects of the Group, over what 
period they have done so and why they considered that 
period to be appropriate, and their statement as to whether 
they have a reasonable expectation that the Group will be 
able to continue in operation and meet its liabilities as they 
fall due over the period of their assessment, including any 
related disclosures drawing attention to any necessary 
qualifications or assumptions.
Our work is limited to assessing these matters in the context 
of only the knowledge acquired during our financial 
statements audit.  As we cannot predict all future events or 
conditions and as subsequent events may result in outcomes 
that are inconsistent with judgements that were reasonable at 
the time they were made, the absence of anything to report on 
these statements is not a guarantee as to the Group’s and 
Company’s longer-term viability. 
Corporate governance disclosures
We are required to perform procedures to identify whether 
there is a material inconsistency between the directors’ 
corporate governance disclosures and the financial statements 
and our audit knowledge.
Based on those procedures, we have concluded that each of 
the following is materially consistent with the financial 
statements and our audit knowledge: 
— the directors’ statement that they consider that the annual 
report and financial statements taken as a whole is fair, 
balanced and understandable and provides the information 
necessary for shareholders to assess the Group’s position 
and performance, business model and strategy;  
— the section of the annual report describing the work of the 
Audit Committee, including the significant issues that the 
audit committee considered in relation to the financial 
statements, and how these issues were addressed; and
— the section of the annual report that describes the review of 
the effectiveness of the Group’s risk management and 
internal control systems.
In addition to our audit of the financial statements, the 
directors have engaged us to review their Corporate 
Governance Statement as if the Company were required to 
comply with the Listing Rules and the Disclosure Guidance 
and Transparency Rules of the Financial Conduct Authority in 
relation to those matters. Under the terms of our engagement 
we are required to review the part of the Corporate 
Governance Statement relating to the Company’s compliance 
with the provisions of the UK Corporate Governance Code 
specified for our review.  We have nothing to report in this 
respect.
8. We have nothing to report on the other matters on which we
are required to report by exception
Under the Companies Act 2006, we are required to report to
you if, in our opinion:
— adequate accounting records have not been kept by the 
parent Company, or returns adequate for our audit have not 
been received from branches not visited by us; or 
— the parent Company financial statements and the part of the 
Directors’ Remuneration Report which we were engaged to 
audit are not in agreement with the accounting records and 
returns; or 
— certain disclosures of directors’ remuneration specified by 
law are not made; or 
— we have not received all the information and explanations 
we require for our audit.
We have nothing to report in these respects
9. Respective responsibilities
Directors’ responsibilities 
As explained more fully in their statement set out on page 98,
the directors are responsible for: the preparation of the financial
statements including being satisfied that they give a true and
fair view; such internal control as they determine is necessary to
enable the preparation of financial statements that are free from
material misstatement, whether due to fraud or error; assessing
the Group and parent Company’s ability to continue as a going
concern, disclosing, as applicable, matters related to going
concern; and using the going concern basis of accounting unless
they either intend to liquidate the Group or the parent Company
or to cease operations, or have no realistic alternative but to do
so.
Auditor’s responsibilities 
Our objectives are to obtain reasonable assurance about 
whether the financial statements as a whole are free from 
material misstatement, whether due to fraud or error, and to 
issue our opinion in an auditor’s report. Reasonable assurance is 
a high level of assurance, but does not guarantee that an audit 
conducted in accordance with ISAs (UK) will always detect a 
material misstatement when it exists. Misstatements can arise 
from fraud or error and are considered material if, individually 
or in aggregate, they could reasonably be expected to influence 
the economic decisions of users taken on the basis of the 
financial statements.
A fuller description of our responsibilities is provided on the 
FRC’s website at www.frc.org.uk/auditorsresponsibilities.
10. The purpose of our audit work and to whom we owe our
responsibilities
This report is made solely to the Company’s members, as a
body, in accordance with Chapter 3 of Part 16 of the Companies
Act 2006 and the terms of our engagement by the Company. Our
audit work has been undertaken so that we might state to the
Company’s members those matters we are required to state to
them in an auditor’s report, and the further matters we are
required to state to them in accordance with the terms agreed
with the Company, and for no other purpose. To the fullest
extent permitted by law, we do not accept or assume
responsibility to anyone other than the Company and the
Company’s members, as a body, for our audit work, for this
report, or for the opinions we have formed.
Kate Teal
(Senior Statutory Auditor) 
for and on behalf of KPMG LLP, Statutory Auditor 
Chartered Accountants 
66 Queen Square
Bristol
BS1 4BE
12 May 2025
Governance Report
IQE Annual Report and Accounts 2024
107

Five-year financial summary 
2024 
£’000
2023 
£’000
2022 
£’000
2021 
£’000
2020 
£’000
Revenue
118,034
115,252
167,494
154,096
178,016
Adjusted EBITDA (see below)
8,112
4,313
23,365
18,679
30,101
Operating (loss)/profit
• Adjusted* 
(18,357)
(20,199)
(3,557)
(6,454)
5,386
• Reported
(32,958)
(25,779)
(72,976)
(19,978)
(5,517)
(Loss)/profit after tax
• Adjusted* 
(23,734)
(23,990)
(5,920)
(19,281)
2,702
• Reported
(38,178)
(29,378)
(74,541)
(31,002)
(2,893)
Net cash flow from operations
Adjusted* (note 5)
6,087
15,744
15,652
17,940
36,324
Reported
1,282
10,074
8,873
18,883
35,457
Free cash flow**
Before adjusted* cash flows
(4,948)
(3,128)
4,148
(1,640)
24,929
Reported
(9,753)
(8,798)
(2,631)
(697)
24,062
Adjusted net (debt)/cash***
(18,800)
(2,228)
(15,248)
(5,804)
1,923
Equity shareholders’ funds
134,110
169,785
175,060
234,621
260,435
Basic EPS – adjusted****
(2.46p)
(2.68p)
(0.74p)
(2.41p)
0.29p
Basic EPS – unadjusted
(3.96p)
(3.28p)
(9.27p)
(3.87p)
(0.41p)
Diluted EPS – adjusted****
(2.46p)
(2.68p)
(0.74p)
(2.41p)
0.29p
Diluted EPS – unadjusted 
(3.96p)
(3.28p)
(9.27p)
(3.87p)
(0.41p)
* 
The adjusted performance measures for 2024 and 2023 are reconciled in note 5. The adjusted performance measures for 2020-2022 are 
reconciled in those financial statements.  
** 
Free cash flow is defined as net cash outflow of £910,000 (2023: £5,409,000) before cash inflows from financing activities of £12,160,000 
(2023: £6,631,000) and net interest paid of £3,317,000 (2023: £3,242,000). 
*** Adjusted net (debt)/cash is defined as cash less borrowings but excluding lease liabilities and fair value gains/losses on derivative 
instruments. 
**** Adjusted EPS measures exclude the impact of certain non-cash charges, non-operational items and significant infrequent items that 
would distort period on period comparability (see note 12). 
Adjusted EBITDA has been calculated as follows: 
2024 
£’000
2023 
£’000
2022 
£’000
2021 
£’000
2020 
£’000
Loss after tax
(38,178)
(29,378)
(74,541)
(31,002)
(2,893)
Tax charge / (credit)
1,273
567
(862)
8,811
(1,001)
Interest expense
3,947
3,032
2,427
2,213
2,165
Share-basedpayments
3,174
2,565
332
1,691
265
(Profit)/Loss on disposal of PPEand intangibles
(62)
(152)
(688)
(77)
182
Adjusted items
11,427
3,015
70,403
11,833
6,850
Depreciation of PPE
16,552
13,186
14,529
13,309
12,983
Depreciation of right-of-use asset
3,791
3,790
3,981
3,854
3,681
Amortisation of intangible assets
6,390
7,688
7,784
8,047
7,869
Gain on remeasurement of right-of-use assets
(202)
–
–
–
–
Adjusted EBITDA
8,112
4,313
23,365
18,679
30,101
 
108
IQE Annual Report and Accounts 2024

Consolidated income statement  
for the year ended 31 December 2024 
Note
2024 
£’000
2023 
£’000
Revenue
4
118,034
115,252
Cost of sales
(113,588)
(112,924)
Gross profit
4,446
2,328
Selling, general and administrative expenses
(29,982)
(32,486)
Impairment loss on intangible assets
5
(3,772)
–
Impairment loss on property, plant and equipment
5
(4,615)
–
Impairment loss on right-of-use asset
5
(31)
–
Gain on remeasurement of right-of-use asset
5
202
–
Impairment (loss)/reversal on trade receivables and contract assets
23
(3)
1,808
Gain on acquisition of remaining interest in CSC
32
–
2,419
Profit on disposal of intangible assets and property, plant and equipment
5
797
152
Operating loss
6
(32,958)
(25,779)
Finance costs 
8
(3,947)
(3,032)
Adjusted loss before income tax
(22,304)
(23,231)
Adjustments
5
(14,601)
(5,580)
Loss before income tax
(36,905)
(28,811)
Taxation
9
(1,273)
(567)
Loss for the year 
(38,178)
(29,378)
Loss attributable to:
Equity shareholders
(38,178)
(29,378)
(38,178)
(29,378)
Loss per share attributable to owners of the parent during the year
Basic loss per share
12
(3.96p)
(3.28p)
Diluted loss per share
12
(3.96p)
(3.28p)
Adjusted basic and diluted loss per share are presented in note 12. 
All items included in the loss for the year relate to continuing operations. 
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
 
Financial Statements
IQE Annual Report and Accounts 2024
109

Consolidated statement of comprehensive income  
for the year ended 31 December 2024 
2024 
£’000
2023 
£’000
Loss for the year
(38,178)
(29,378)
Exchange differences on translation of foreign operations*
(826)
(8,088)
Total comprehensive expense for the year
(39,004)
(37,466)
Total comprehensive expense attributable to:
Equity shareholders
(39,004)
(37,466)
(39,004)
(37,466)
* Items that may subsequently be reclassified to profit or loss. 
Items in the statement above are disclosed net of tax. The income tax relating to each component of other 
comprehensive expense is disclosed in note 9. 
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
 
110
IQE Annual Report and Accounts 2024

Consolidated balance sheet  
as at 31 December 2024 
Note
2024 
£’000
2023 
£’000
Non-current assets
Intangible assets
13
28,950
35,378
Property, plant and equipment
14
113,674
129,553
Right-of-use assets
15
42,210
37,895
Deferred tax assets
10
–
–
Total non-current assets
184,834
202,826
Current assets
Inventories
17
20,009
24,577
Trade and other receivables
18
37,424
38,220
Cash and cash equivalents
4,660
5,617
Assets held for resale
19
120
2,274
Total current assets
62,213
70,688
Total assets
247,047
273,514
Current liabilities
Trade and other payables
20
(34,405)
(42,572)
Current tax liabilities
(428)
(531)
Bank borrowings
21
–
(4,153)
Lease liabilities
21
(5,658)
(5,865)
Provisions for other liabilities and charges
22
(774)
(2,998)
Total current liabilities
(41,265)
(56,119)
Non-current liabilities
Trade and other payables
20
(2,035)
(2,208)
Bank borrowings
21
(23,460)
(3,692)
Lease liabilities
21
(44,872)
(40,435)
Deferred tax liabilities
10
(774)
(604)
Provisions for other liabilities and charges
22
(531)
(671)
Total non-current liabilities
(71,672)
(47,610)
Total liabilities
(112,937)
(103,729)
Net assets
134,110
169,785
Equity attributable to the shareholders of the parent 
Share capital
24
9,672
9,615
Share premium
155,972
155,844
Retained earnings
(85,644)
(47,466)
Exchange rate reserve
31,621
32,447
Other reserves
22,489
19,345
Total equity
134,110
169,785
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. The financial 
statements on pages 108 to 169 were authorised for issue by the Board of Directors and approved on 12 May 2025 
and were signed on its behalf. 
Mrs J Meier
Financial Statements
IQE Annual Report and Accounts 2024
111

Consolidated statement of changes in equity  
for the year ended 31 December 2024 
Share  
capital 
£’000
Share 
premium 
£’000
Retained 
earnings / 
(losses) 
£’000
Exchange 
Rate reserve 
£’000
Other 
reserves 
£’000
Total  
equity 
£’000
At 1 January 2024
9,615
155,844
(47,466)
32,447
19,345
169,785
Comprehensive expense
Loss for the year
–
–
(38,178)
–
–
(38,178)
Other comprehensive expense for 
the year
–
–
–
(826)
–
(826)
Total comprehensive expense for 
the year
–
–
(38,178)
(826)
–
(39,004)
Transactions with owners
Share-based payments
–
–
–
–
3,177
3,177
Tax relating to share options
–
–
–
–
(33)
(33)
Proceeds from shares issued 
57
128
–
–
–
185
Total transactions with owners
57
128
–
–
3,144
3,329
At 31 December 2024
9,672
155,972
(85,644)
31,621
22,489
134,110
 
Share 
capital 
£’000
Share 
premium 
£’000
Retained 
earnings/ 
(losses) 
£’000
Exchange Rate 
reserve 
£’000
Other reserves 
£’000
Total 
equity 
£’000
At 1 January 2023
8,048
154,720
(45,246)
40,535
17,003
175,060
Comprehensive expense
Loss for the year
–
–
(29,378)
–
–
(29,378)
Other comprehensive expense for 
the year
–
–
–
(8,088)
–
(8,088)
Total comprehensive expense for 
the year
–
–
(29,378)
(8,088)
–
(37,466)
Transactions with owners
Share-based payments
–
–
–
–
2,484
2,484
Tax relating to share options
–
–
–
–
(142)
(142)
Proceeds/(charge) from shares 
issued 
1,567
1,124
(1,342)
–
28,500
29,849
Transfer of merger reserve to retained 
earnings (see note 24)
–
–
28,500
–
(28,500)
–
Total transactions with owners
1,567
1,124
27,158
–
2,342
32,191
At 31 December 2023
9,615
155,844
(47,466)
32,447
19,345
169,785
Other reserves relate to share-based payments. 
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
 
112
IQE Annual Report and Accounts 2024

Consolidated cash flow statement  
for the year ended 31 December 2024 
 
Note
2024 
£’000
2023 
£’000
Cash flows from operating activities
Adjusted cash inflow from operations
6,087
15,744
Cash impact of adjustments
5
(4,805)
(5,670)
Cash generated from operations
27
1,282
10,074
Interest paid
(3,317)
(3,242)
Income tax paid
(841)
(912)
Net cash generated from operating activities
(2,876)
5,920
Cash flows from investing activities
Purchase of property, plant and equipment
(11,359)
(12,158)
Purchase of intangible assets 
(1,609)
(3,113)
Capitalised development expenditure
(1,877)
(2,852)
Proceeds from disposal of property, plant and equipment and intangible assets
4,906
553
Acquisition of subsidiary, net of cash received*
(255)
(390)
Adjusted cash used in investing activities
(15,022)
(17,960)
Cash impact of adjustments – proceeds from disposal of property, plant and 
equipment
5
4,828
–
Net cash used in investing activities
(10,194)
(17,960)
Cash flows from financing activities
Proceeds from issuance of ordinary shares
185
31,239
Expenses associated with issue of ordinary shares
–
(1,390)
Proceeds from borrowings
28
19,493
9,932
Repayment of borrowings
28
(4,048)
(28,363)
Payment of lease liabilities
28
(3,470)
(4,787)
Net cash generated from financing activities
12,160
6,631
Net decrease in cash and cash equivalents
(910)
(5,409)
Cash and cash equivalents at 1 January
5,617
11,620
Exchange losses on cash and cash equivalents
(47)
(594)
Cash and cash equivalents at 31 December
4,660
5,617
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
*Acquisition of subsidiary, net of cash received relates to deferred consideration paid in respect of the Group’s 
acquisition of Compound Semiconductor Centre Limited in 2023. 
 
Financial Statements
IQE Annual Report and Accounts 2024
113

Parent company balance sheet  
for the year ended 31 December 2024 
Note
2024 
£’000
2023 
£’000
Non-current assets
Intangible assets
13
8,741
7,664
Property, plant and equipment
14
5
17
Investments 
16
80,608
60,169
Deferred tax assets
10
–
–
Trade and other receivables
18
118,032
165,422
Total non-current assets
207,386
233,272
Current assets
Trade and other receivables
18
1,636
2,217
Cash and cash equivalents
306
–
Total current assets
1,942
2,217
Total assets
209,328
235,489
Current liabilities
Trade and other payables
20
(40,037)
(37,193)
Bank borrowings
21
–
(857)
Provisions for other liabilities and charges
22
(200)
(195)
Total current liabilities
(40,237)
(38,245)
Non-current liabilities
Bank borrowings
21
(23,460)
(3,692)
Provisions for other liabilities and charges
22
(280)
(671)
Total non-current liabilities
(23,740)
(4,363)
Total liabilities
(63,977)
(42,608)
Net assets
145,351
192,881
Shareholders’ equity
Share capital
24
9,672
9,615
Share premium
155,972
155,844
Retained (losses)/earnings
(42,964)
7,928
Other reserves
22,671
19,494
Total equity
145,351
192,881
The Company has elected to take the exemption under Section 408 of the Companies Act 2006 from presenting the 
parent company profit and loss account. 
The parent company’s (registered number: 03745726) loss for the financial year amounted to £50,892,000 
(2023: £11,762,000 loss). 
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
The financial statements on pages 108 to 169 were authorised for issue by the Board of Directors and approved on 12 
May 2025 and were signed on its behalf. 
Mrs J Meier
114
IQE Annual Report and Accounts 2024

Parent company statement of changes in equity  
for the year ended 31 December 2024 
Share capital 
£’000
Share 
premium 
£’000
Retained 
earnings / 
(losses) 
£’000
Other  
reserves 
£’000
Total 
Equity 
£’000
At 1 January 2024
9,615
155,844
7,928
19,494
192,881
Comprehensive expense
Loss for the year
–
–
(50,892)
–
(50,892)
Total comprehensive expense
–
–
(50,892)
–
(50,892)
Transactions with owners
Share-based payments
–
–
–
3,177
3,177
Proceeds from shares issued
57
128
–
–
185
Total transactions with owners
57
128
–
3,177
3,362
At 31 December 2024
9,672
155,972
(42,964)
22,671
145,351
 
Share capital 
£’000
Share 
premium 
£’000
Retained 
earnings/ 
(losses) 
£’000
Other 
reserves 
£’000
Total 
 Equity 
£’000
At 1 January 2023
8,048
154,720
(7,468)
17,012
172,312
Comprehensive expense
Loss for the year
–
–
(11,762)
–
(11,762)
Total comprehensive expense
–
–
(11,762)
–
(11,762)
Transactions with owners
Share-based payments
–
–
–
2,484
2,484
Tax relating to share options
–
–
–
(2)
(2)
Proceeds/(charge) from shares issued
1,567
1,124
(1,342)
28,500
29,849
Transfer of merger reserve to retained earnings 
(see note 24)
–
–
28,500
(28,500)
–
Total transactions with owners
1,567
1,124
27,158
2,482
32,331
At 31 December 2023
9,615
155,844
7,928
19,494
192,881
Other reserves relate to share-based payments. 
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
 
Financial Statements
IQE Annual Report and Accounts 2024
115

Parent company cash flow statement 
for the year ended 31 December 2024 
 
Note
2024 
£’000
2023 
£’000
Cash flows from operating activities
Cash outflow from operations
27
(16,455)
(17,453)
Interest received
892
–
Interest paid
(1,371)
(1,025)
Net cash used in operating activities
(16,934)
(18,478)
Purchase of intangible assets
(1,582)
(2,767)
Purchase of property plant and equipment
(1)
(3)
Proceeds from disposal of property, plant and equipment and intangible assets
2
351
Net cash used in investing activities
(1,581)
(2,419)
Cash flows from financing activities
Proceeds from issuance of ordinary shares
185
31,239
Expenses associated with issue of ordinary shares
–
(1,390)
Proceeds from borrowings
19,493
9,932
Repayments of borrowings
–
(22,177)
Net cash generated from financing activities
19,678
17,604
Net increase/(decrease) in cash and cash equivalents
1,163
(3,293)
Cash and cash equivalents at 1 January
(857)
2,436
Cash and cash equivalents at 31 December
306
(857)
The notes on pages 117 to 169 form an integral part of these consolidated financial statements. 
 
116
IQE Annual Report and Accounts 2024

Notes to the financial statements  
for the year ended 31 December 2024 
1. General information 
IQE plc (‘the Company’) and its subsidiaries (together ‘the 
Group’) develop, manufacture and sell advanced 
semiconductor materials. The Group has manufacturing 
facilities in Europe, United States of America and Asia and 
sells to customers located globally.  
IQE plc is a public limited company incorporated in the 
United Kingdom under the Companies Act 2006. The 
Company is domiciled in the United Kingdom and is 
quoted on the Alternative Investment Market (AIM). The 
address of the Company’s registered office is Pascal 
Close, St Mellons, Cardiff, CF3 0LW. 
2. Material accounting policies 
The principal accounting policies applied in the 
preparation of these consolidated financial statements 
are set out below. These policies have been consistently 
applied to all years presented. 
2.1 Basis of preparation 
The financial statements have been prepared and 
approved by the Directors in accordance with UK adopted 
international accounting standards (‘UK adopted IFRS’). The 
financial statements have been prepared under the 
historical cost convention except where fair value 
measurement is required by IFRS. The Group applies fair 
value measurement in its accounting for derivative foreign 
currency financial instruments (see note 2.18). 
The preparation of financial statements in conformity 
with IFRS requires the use of certain critical accounting 
estimates. It also requires management to exercise  
its judgement in the process of applying the Group’s 
accounting policies. The areas involving a higher  
degree of judgement or complexity, or areas where 
assumptions and estimates are significant to the 
consolidated financial statements, are disclosed 
in note 3.  
2.2 Going concern 
The Group has continued to experience weaker 
customer demand and lower customer orders than 
originally anticipated following the global 
semiconductor industry downturn as market recovery 
has been slower than expected in key sectors, driven 
primarily by the uncertainty in consumer demand in 
end markets.  
The continuation of weaker customer demand than 
anticipated, resulting in sales that have remained 
broadly flat year-on-year, has presented a significant 
challenge to the business which, as previously 
announced, led the Directors to commence a Strategic 
Review of the Group and to take immediate actions to 
raise the necessary short-term finance to strengthen 
the Group’s liquidity position. 
The actions taken by the Directors, and previously 
announced, include: 
 The implementation of cost-cutting actions, including 
staff redundancies, operational efficiencies and 
reductions in areas of discretionary expenditure which 
are under the control of the Directors 
 The formal waiver, obtained pre-year end, from HSBC 
Bank plc of the Group’s 31 December 2024 leverage 
and interest cover covenant tests applicable to the 
Group’s £28,000,000 ($35,000,000) multi-currency 
revolving credit facility (‘RCF’) 
 The successful £18,000,000 convertible loan note 
(‘CLN’) fund raise completed on 13 March 2025 
to provide the Group with additional short-term 
liquidity whilst the Board completes its Strategic 
Review. The CLN has an initial term of 12 months, the 
Group has an option to extend for a further six 
months, bringing the term to 13 September 2026 
 The successful negotiation of a Deed of Amendment 
and Restatement with HSBC Bank plc to the Group’s 
£28,000,000 ($35,000,000) RCF on 10 March 2025 that 
replaces the leverage and interest cover financial 
covenants with minimum EBITDA and minimum 
liquidity financial covenants for the remaining tenor of 
the facility to 1 May 2026 
We are also pleased that as of 12 May 2025, the Group 
has received a four-month extension of its RCF to 1 
September 2026 from HSBC, a reflection of the 
longstanding and supportive relationship with the 
lender. 
In the twelve months to 31 December 2024, reported 
revenue has remained subdued at £118,034,000 and the 
Group made a loss after tax for the year of £38,178,000. 
The liquidity impact of the loss, combined with capital 
and technology development expenditure, property 
lease payments and debt service costs has resulted in 
an increase in the Group’s adjusted net debt position 
(net debt excluding lease liabilities and fair value 
gains/losses on derivative instruments) to £18,800,000 
(2023: £2,228,000). At 31 December 2024, the Group had 
undrawn committed funding of £4,400,000 ($5,500,000) 
available under the terms of its multi-currency revolving 
credit facility. 
In assessing the going concern basis of preparation, the 
Directors have considered the period to 30 September 
2026 (‘the going concern assessment period’) to align 
with the expiry of the extended RCF and extended term 
date of the CLN.  
The Directors have prepared financial projections 
containing both a ‘base case’ and a ‘severe but 
plausible downside case’. 
 
Base Case 
The base case is derived from Group’s Board-approved 
2025 budget, latest H12026 forecast and run rate to 30 
September 2026, updated for actual results to 31 March 
2025. The base case incorporates a modest expected 
improvement in market dynamics and the impact of 
cost cutting actions already implemented by the Board. 
The base case was prepared with the following 
key assumptions: 
 Revenue for 2025 is forecast to return to modest mid-
single digit percentage year-on-year growth with 
sequential mid-single digit percentage half-on-half 
growth forecast in H12026 
 
Financial Statements
IQE Annual Report and Accounts 2024
117

Notes to the financial statements continued 
for the year ended 31 December 2024 
2. Material accounting policies continued 
 GBP to USD FX rate of 1.32 adopted for the forecast 
cash flows throughout the going concern period 
 Direct wafer product margins for 2025 and H12026 
reflect operating efficiency improvements linked to a 
combination of restructuring actions that have been 
implemented in 2024 and increased capacity 
utilisation 
 Labour inflation in 2025 and H12026 in line with labour 
market norms and non-labour cost inflation in 2025 and 
H12026 in line with the current inflationary environment 
 Low double digit £’m of capital expenditure in 2025 
which includes investment in committed Gallium 
Nitride (GaN) related manufacturing capacity, 
enabling diversification into the high-growth power 
electronics and advanced display (uLED) markets and 
low single digit £’m of capital expenditure in H12026 
related to operational sustainability and maintenance 
capital expenditure 
 
Severe but plausible downside 
The severe but plausible downside case was prepared 
by applying the following downsides and mitigating 
actions: 
 Revenue is assumed 7% down on the base case for 
2025 and 20% down for H12026 reflecting a broadly flat 
year on-year outlook resulting from a combination of 
continued weakness in customer demand, further 
delays in market recovery and the impact of greater 
forecasting uncertainty the further out into the future 
 In line with the revenue reduction in both years, there 
is a reflective reduction in variable operating costs for 
2025 and H12026 
 The application of mitigations in the form of 
reductions in certain non-manufacturing related 
discretionary expenditure and deferred investment in 
technology asset development over and above those 
reflected in the base case. These cost savings and 
cash management actions have already been 
identified, are in the control of management and can 
be swiftly implemented  
 
In both the base and severe but plausible downside 
case, the Group is forecast to maintain liquidity 
headroom and to comply with its minimum EBITDA and 
minimum liquidity covenants up to the date of expiry of 
the RCF on 1 September 2026 or redemption of the CLN 
on 13 September 2026. 
The Directors, as part of the announced Strategic 
Review, plan to raise cash from the divestment of Group 
assets to ensure that the Group has a strong capital 
position to further invest in its core operations and to 
enable the Group to refinance or repay its loan facilities. 
In the first instance, this plan includes divestment 
options for an IPO or full sale of the Group’s Taiwan 
operations and a comprehensive Strategic Review of all 
other Group assets and operations.  
 
Whilst the Directors are confident that the divestment of 
IQE Taiwan is progressing as planned and will realise 
sufficient cash, they acknowledge that a delayed 
outcome of the potential sale or IPO of the non-core 
asset could impact the availability of sufficient funding 
for the Group’s needs beyond the maturity of its existing 
facilities. 
  
The Directors have concluded that the successful 
completion of the planned sale of non-core assets 
and/or availability of sufficient, appropriate funding for 
the group’s needs beyond the maturity of existing 
facilities represents a material uncertainty related to 
events or conditions that may cast significant doubt on 
the group’s and the company’s ability to continue as a 
going concern and, therefore, that the group and 
company may be unable to realise their assets and 
discharge their liabilities in the normal course of 
business. The financial statements do not include any 
adjustments that would result from the basis of 
preparation being inappropriate.  
 
 
 
 
 
 
 
118
IQE Annual Report and Accounts 2024

 
2.3 Changes in accounting policy and disclosures 
a) New standards, amendments and 
interpretations 
The following new standards, amendments and 
interpretations have been adopted by the Group for  
the first time for the financial year beginning on 
1 January 2024: 
• Amendment to IAS 1 ‘Presentation of Financial 
Statements’ on classification of liabilities which is 
intended to clarify that liabilities are classified as 
either current or non-current depending upon the 
rights that exist at the end of the reporting period. The 
amendment also requires disclosure of information 
relating to the risks associated with non-current 
liabilities that are subject to future covenants that the 
liability could become repayable within 12 months. 
• Amendment to IAS 7 ‘Statement of Cash Flows’ and 
IFRS 7 ‘Financial Instruments: Disclosures’ related to the 
disclosure and transparency of supplier finance 
arrangements. 
• Amendment to IAS 12 ‘Income taxes’ which provides 
temporary mandatory relief from deferred tax 
accounting for top up tax and disclosure of new 
information to compensate for the potential loss of 
information arising from the mandatory relief. 
• Amendment to IFRS 16 ‘Leases’ which confirms the 
initial and subsequent recognition principles for 
variable lease payments as a liability in a sale and 
leaseback transaction. 
The adoption of these standards, amendments and 
interpretations has not had a material impact on the 
financial statements of the Group or parent company. 
b) New standards, amendments and 
interpretations issued but not effective and not 
adopted early 
A number of new standards, amendments to standards 
and interpretations which are set out below are 
effective for annual periods beginning after 1 January 
2025 and have not been applied in preparing these 
consolidated financial statements: 
• Annual Improvements to IFRS Accounting Standards—
Volume 11 which contains various improvement and 
enhancements to existing standards 
• IFRS S1 ‘General Requirements for Disclosure of 
Sustainability related Financial Information’ and IFRS 
S2 ‘Climate related Disclosures’ 
• IFRS 18 ‘Presentation and disclosure in financial 
statements’ which includes new requirements for 
presentation and disclosure with a focus on the 
income statement 
• IFRS 19 ‘Subsidiaries without public accountability: 
disclosures’ is a voluntary standard that contains a 
reduced disclosure framework for use by eligible 
subsidiaries that prepare financial statements 
applying IFRS Accounting Standards.  
• Amendment to IAS 21 ‘The Effects of Changes in 
Foreign Exchange Rates’ which establishes how a spot 
exchange rate is estimated when a currency lacks 
exchangeability. 
• Amendments to the Classification and Measurement 
of Financial Instruments (Amendments to IFRS 9 and 
IFRS 7) which provides further clarification and 
requirements for the recognition and derecognition 
criteria for financial assets and liabilities, the 
classification requirements for financial assets and 
disclosure requirements related to the amendments 
to the classification requirements. 
• Amendments to contracts referencing nature-
dependent Electricity (Amendments to IFRS 9 and IFRS 
7) for power purchase agreements 
The Directors anticipate that at the time of this report 
none of the new standards, amendments to standards 
or interpretations are expected to have a material effect 
on the financial statements of the Group or parent 
company. 
2.4 Consolidation 
The consolidated financial statements comprise the 
results of IQE plc (the Company) and its subsidiary 
undertakings, together with the Group’s share of the 
results of its joint venture.  
Subsidiaries 
Subsidiaries are all entities over which the Group has 
control. The Group controls an entity when the Group is 
exposed to, or has rights to, variable returns from its 
involvement with the entity and has the ability to affect 
those returns through its power over the entity. 
Subsidiaries are fully consolidated from the date on 
which control is transferred to the Group and are de-
consolidated from the date that control ceases.  
Inter-company transactions, balances and unrealised 
gains or losses on transactions between Group 
companies are eliminated and accounting policies of 
subsidiaries have been changed where necessary to 
ensure consistency with the policies adopted by the 
Group. 
Joint ventures 
The Group applies IFRS 11 to all joint arrangements. Under 
IFRS 11, investments in joint arrangements are classified 
as either joint operations or joint ventures depending on 
the contractual rights and obligations of each investor. 
The nature of the Group’s joint arrangements has been 
assessed, and each joint arrangement has been 
determined to be a joint venture. Joint ventures are 
accounted for using the equity method.  
Under the equity method of accounting, interests in joint 
ventures are initially recognised at cost and adjusted 
thereafter to recognise the Group’s share of the post-
acquisition profits or losses and movements in other 
comprehensive income.  
Gains by the Group on transactions with joint ventures 
are eliminated against the carrying value of the Group’s 
interest in its joint ventures to the extent that the gain 
does not exceed the carrying amount. In circumstances 
where a gain exceeds the carrying amount the Group 
has made an accounting policy choice to recognise the 
gain in the comprehensive income statement, subject 
to an assessment of recoverability of value from the 
joint venture rather than recognising the gain as 
deferred income in the consolidated balance sheet.  
Financial Statements
IQE Annual Report and Accounts 2024
119

Notes to the financial statements continued 
for the year ended 31 December 2024 
2. Material accounting policies continued 
When the Group’s share of losses in a joint venture 
equals or exceeds its interests in the joint ventures 
(which includes any long-term interests that, in 
substance, form part of the Group’s net investment in 
the joint ventures), the Group does not recognise further 
losses, unless it has incurred obligations or made 
payments on behalf of the joint ventures. Unrealised 
gains on transactions between the Group and its joint 
ventures are eliminated to the extent of the Group’s 
interest in the joint ventures. Unrealised losses are also 
eliminated unless the transaction provides evidence of 
an impairment of the asset transferred. Accounting 
policies of the joint ventures have been changed where 
necessary to ensure consistency with the policies 
adopted by the Group. 
Business combinations 
The Group accounts for business combinations using 
the acquisition method when control is transferred to 
the Group. The consideration transferred in the 
acquisition is generally measured at fair value, as are 
the identifiable net assets acquired. Any goodwill that 
arises is tested annually for impairment. Any gain on a 
bargain purchase is recognised in profit or loss 
immediately. Transaction costs are expensed as 
incurred, except if related to the issue of debt or equity 
securities. The consideration transferred does not 
include amounts related to the settlement of pre-
existing relationships. Such amounts are generally 
recognised in profit or loss. 
Where the fair values of acquired identifiable assets, 
liabilities and contingent liabilities are initially recognised 
on a provisional basis, these are reassessed during the 
12-month period following the date of the business 
combination. Adjustments to the fair values as at the 
date of acquisition that result from new information that 
existed at the date of acquisition which, if known at the 
time, would have resulted in a different amount being 
recognised within this ‘measurement period’, are 
recorded with any net impact being added to or 
deducted from the goodwill recognised. Such 
adjustments are recognised in both the current period 
and the restated comparative period balance sheets as 
if the final fair values had been used in the initial 
recognition of the acquisition. Subsequent to the 
measurement period, any adjustments to the recorded 
fair value of identifiable assets, liabilities and contingent 
liabilities are taken through the income statement as an 
exceptional income or expense. 
The Group recognises any non-controlling interest on 
an acquisition-by-acquisition basis, either at fair value 
or at the non-controlling interest’s proportionate share 
of the recognised amounts of the acquiree’s identifiable 
net assets. 
Acquisition related costs are expensed as incurred. 
 
2.5 Intangible assets 
a) Goodwill 
Goodwill arising on an acquisition is recognised as an 
asset and initially measured at cost, being the excess of 
the fair value of the consideration over the fair value of 
the identifiable assets, liabilities and contingent liabilities 
acquired. 
Goodwill is not amortised but is reviewed for potential 
impairment at least annually, or more frequently if 
events or circumstances indicate a potential 
impairment. For the purpose of impairment testing, 
goodwill is allocated to each of the Cash Generating 
Units to which it relates. Any impairment identified is 
immediately charged to the Consolidated Income 
Statement. Subsequent reversals of impairment losses 
for goodwill are not recognised. 
Negative goodwill arising on an acquisition where the 
fair value of identifiable assets, liabilities and contingent 
liabilities exceeds the fair value of the consideration is 
credited and recognised in the consolidated income 
statement immediately. 
b) Patents, trademarks and licences 
Separately acquired patents, trademarks and licences 
are shown at historical cost. Patents, trademarks and 
licences acquired in a business combination are 
recognised at fair value at the acquisition date. Patents, 
trademarks and licences have a finite useful life and are 
carried at cost less accumulated amortisation.  
Amortisation is calculated using the straight-line 
method to allocate the cost of the assets over their 
estimated useful lives of 10 to 15 years. Amortisation is 
charged to selling and general administration expenses 
in the income statement. 
The carrying value of patents, trademarks and licences 
is reviewed for potential impairment if events or 
circumstances indicate a potential impairment. Any 
impairment identified is immediately charged to the 
Consolidated Income Statement. 
c) Development costs 
Expenditure incurred that is directly attributable to the 
development of new or substantially improved products 
or processes is recognised as an intangible asset when 
the following criteria are met: 
• the product or process is intended for use or sale; 
• the development is technically feasible to complete; 
• there is an ability to use or sell the product or process; 
• it can be demonstrated how the product or process 
will generate probable future economic benefits; 
• there are adequate technical, financial and other 
resources to complete the development; and 
• the development expenditure can be reliably 
measured. 
 
 
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Directly attributable costs refer to the materials 
consumed; the directly attributable labour; and the 
directly attributable overheads incurred in the 
development activity. General operating costs, 
administration costs and selling costs do not form part 
of directly attributable costs. 
All research and other development costs are expensed 
as incurred. 
Capitalised development costs are amortised in line 
with the expected production volume profile over the 
period during which the economic benefits are 
expected to be received, which typically ranges 
between 3 and 8 years. The estimated remaining useful 
lives of development costs are reviewed at least on an 
annual basis. Amortisation commences once the 
project is completed, and the development has been 
released into production. Amortisation is charged to 
selling and general administration expenses in the 
income statement. 
The carrying value of capitalised development costs in 
respect of completed projects is reviewed for 
impairment if events or circumstances indicate a 
potential impairment. Projects that remain under 
development at the reporting date are reviewed for 
impairment at least annually, or more frequently if 
events or circumstances indicate a potential 
impairment. Any impairment identified is immediately 
charged to the Consolidated Income Statement. 
d) Software 
Directly attributable costs incurred in the development 
of bespoke software for the Group’s own use are 
capitalised and amortised on a straight-line basis over 
the expected useful life of the software, which typically 
ranges between 3 and 10 years. Amortisation is charged 
to selling and general administration expenses in the 
income statement. 
The carrying value of capitalised software costs is 
reviewed for potential impairment if events or 
circumstances indicate a potential impairment. Any 
impairment identified is immediately charged to the 
Consolidated Income Statement. The costs of 
maintaining internally developed software and annual 
licence fees paid to utilise third-party software are 
expensed as incurred.  
 
2.6 Property, plant and equipment 
Property, plant and equipment is stated at cost less 
accumulated depreciation and any provision for 
impairment. Cost comprises all costs that are directly 
attributable to bringing the asset into working condition 
for its intended use. Depreciation is calculated to write 
down the cost of property, plant and equipment to its 
residual value on a straight-line basis over the following 
estimated useful economic lives: 
Freehold buildings
10 to 40 years
Short leasehold improvements 
5 to 30 years
Plant and machinery
3 to 25 years
Fixtures and fittings 
3 to 10 years
No depreciation is provided on land or assets yet to be 
brought into use. Depreciation is charged to cost of 
sales and selling and general administration expenses 
in the income statement. 
Costs incurred after initial recognition are included in 
the assets’ carrying amounts, or recognised as a 
separate asset as appropriate, only when it is probable 
that future economic benefits associated with them will 
flow to the Group and the cost of the item can be 
measured reliably. The carrying amount of the replaced 
part is derecognised. All other repairs and maintenance 
are charged to the income statement during the 
financial year in which they are incurred. 
Gains and losses on disposals are determined by 
comparing the proceeds with the carrying amount and 
are recognised within ‘profit/loss on disposal of property, 
plant and equipment’ in the income statement. 
Assets’ residual values and useful economic lives are 
reviewed, and adjusted if appropriate, at the end of 
each reporting period. The carrying value of property, 
plant and equipment is reviewed for potential 
impairment if events or circumstances indicate a 
potential impairment. Any impairment identified is 
immediately charged to the Consolidated Income 
Statement. 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
121

Notes to the financial statements continued 
for the year ended 31 December 2024 
2. Material accounting policies continued 
2.7 Leases 
The Group assesses whether a contract is, or contains, a 
lease at inception of the contract. A contract is, or 
contains, a lease if the contract conveys the right to 
control the use of an identified asset for a period of time 
in exchange for consideration.  
The Group recognises a right-of-use asset and a 
corresponding lease liability with respect to all lease 
arrangements in which it is the lessee, except for short-
term leases (defined as leases with a lease term of 12 
months or less), leases of low-value assets (such as 
small items of office furniture and equipment) and 
leases with variable rentals not linked to a relevant 
index. For these leases, the Group recognises the lease 
payments as an operating expense on a straight-line 
basis over the term of the lease unless another 
systematic basis is more representative of the time 
pattern in which economic benefits from the leased 
assets are consumed. 
Right-of-use assets and lease liabilities are recognised 
at the lease commencement date. Right-of-use assets 
are initially measured at cost, and subsequently 
measured at cost less any accumulated depreciation 
and impairment losses, adjusted for certain 
remeasurements of the lease liability. 
Right-of-use assets are depreciated over the shorter 
period of lease term and useful life of the underlying 
asset. If a lease transfers ownership of the underlying 
asset or the cost of the right-of-use asset reflects that 
the Group expects to exercise a purchase option, the 
related right-of-use asset is depreciated over the useful 
life of the underlying asset. The depreciation starts at the 
commencement date of the lease. 
The Group applies IAS 36 to determine whether a right-
of-use asset is impaired and accounts for any identified 
impairment loss as described in the ‘Property, Plant and 
Equipment’ policy. 
Right-of-use assets are presented as a separate line in 
the consolidated statement of financial position. 
The lease liability is initially measured at the present 
value of the lease payments that are not paid at the 
commencement date, discounted using the interest 
rate implicit in the lease or, if that rate cannot be readily 
determined, the Group’s incremental borrowing rate. 
The lease liability is subsequently measured by 
increasing the carrying amount to reflect interest on the 
lease liability (using the effective interest method) and 
by reducing the carrying amount to reflect the lease 
payments made.  
The Group remeasures the lease liability (and makes a 
corresponding adjustment to the related right-of-use 
asset) when there is a change in future lease payments. 
Changes in future lease payments can arise from a 
change in an index or rate, a change in the assessment 
of whether a purchase or extension option is reasonably 
certain to be exercised or from a change in assessment 
about whether a termination option is reasonably 
certain not to be exercised. 
Variable rents that do not depend on an index or rate 
are not included in the measurement of the lease 
liability and the right-of-use asset. The related 
payments are recognised as an expense in the period in 
which the event or condition that triggers those 
payments occurs and are included in the line ‘Cost of 
sales’ in profit or loss. 
2.8 Impairment of non-financial assets 
Intangible assets that have an indefinite useful life, or 
intangible assets not ready to use, are not subject to 
amortisation and are reviewed for potential impairment 
at least annually, or more frequently if events or 
circumstances indicate a potential impairment. Assets 
that are subject to amortisation are reviewed for 
impairment whenever events or changes in 
circumstances indicate that the carrying amount may 
not be recoverable. An impairment loss is recognised for 
the amount by which the asset’s carrying amount 
exceeds its recoverable amount. The recoverable 
amount is the higher of an asset’s fair value (less 
disposal costs) and value in use. 
Value in use is based on the present value of the future 
cash flows relating to the asset, discounted at the 
Group’s risk adjusted pre-tax discount rate. For the 
purpose of assessing impairment, assets are grouped 
at the lowest levels for which there are separately 
identifiable cash flows. 
Indicators that impairment losses might have reversed 
are assessed annually. 
2.9 Inventories 
Inventories are stated at the lower of cost and net 
realisable value. Cost is determined using the first-in, 
first-out method. Cost comprises direct materials and, 
where applicable, direct labour costs and attributable 
overheads that have been incurred in bringing the 
inventories to their present location and condition 
based on normal operating capacity. Net realisable 
value is the estimated selling price in the ordinary 
course of business, less applicable selling expenses. 
 
 
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2.10 Trade receivables 
Trade receivables are amounts due from customers for 
goods sold or services performed in the ordinary course 
of business. If collection is expected in one year or less 
(or in the normal operating cycle of the business if 
longer), they are classified as current assets. If not, they 
are presented as non-current assets. 
Trade receivables are recognised initially at fair value 
and subsequently measured at amortised cost using 
the effective interest method, less provision for 
impairment. 
2.11 Cash and cash equivalents 
In the consolidated statement of cash flows, cash and 
cash equivalents includes cash in hand, deposits held 
at call with banks, other short-term highly liquid 
investments with original maturities of three months or 
less, and bank overdrafts. Bank overdrafts are presented 
within cash and cash equivalents where the Group has 
a right of set-off under its treasury arrangements that 
are pooled by territory.  
2.12 Assets held for resale 
Assets held for resale are not depreciated, are 
measured at the lower of carrying amount and fair 
value less costs to sell and are presented separately in 
the statement of financial position. 
2.13 Financial assets 
Financial assets are recognised on the Group’s balance 
sheet when the Group becomes a party to the 
contractual provisions of the financial instrument and 
are derecognised when the rights to receive cash flows 
have expired or have been transferred and the Group 
has transferred substantially all the risks and rewards 
of ownership.  
Classification of financial assets  
On initial recognition, a financial asset is classified as 
measured at amortised cost, fair value through other 
comprehensive income – debt investment, fair value 
through other comprehensive income – equity 
investment or fair value through profit or loss. 
The classification depends on the purpose for which the 
financial assets were acquired, and the classification is 
determined at the date of initial recognition. Financial 
assets are not reclassified subsequent to their initial 
recognition unless the Group changes its business 
model for managing financial assets, in which case all 
affected financial assets are reclassified on the first day 
of the reporting period following the change in 
business model. 
A financial asset is measured at amortised cost if it 
meets both of the following conditions: 
• it is held within a business model whose objective is to 
hold assets to collect contractual cash flows;  
• its contractual terms give rise to cash flows that are 
solely payments of principal and interest on the 
principal amount outstanding. 
Amortised cost financial assets are non-derivative 
financial assets with fixed or determinable payments 
that are not quoted in an active market. They are 
included in current assets, except for maturities greater 
than 12 months after the reporting period where the 
item is classified as a non-current asset. The Group’s 
financial assets comprise trade and other receivables 
(note 2.10), cash and cash equivalents (note 2.11) and 
contract assets (note 2.22).  
Amortised cost and effective interest method 
Financial assets are measured at amortised cost using 
the effective interest method. The effective interest rate 
is the rate that discounts estimated future cash receipts 
excluding expected credit losses, through the expected 
life of the debt instrument, or, where appropriate, a 
shorter period, to the gross carrying amount of the debt 
instrument on initial recognition. 
The amortised cost of a financial asset is the amount at 
which the financial asset is measured at initial 
recognition minus the principal repayments, plus the 
cumulative amortisation using the effective interest 
method of any difference between that initial amount 
and the maturity amount, adjusted for any loss 
allowance. The gross carrying amount of a financial 
asset is the amortised cost of a financial asset before 
adjusting for any loss allowance. Interest income, 
foreign exchange gains and losses and impairment are 
recognised in profit or loss. Any gain or loss on 
derecognition is recognised in profit or loss. 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
123

Notes to the financial statements continued 
for the year ended 31 December 2024 
2. Material accounting policies continued 
Impairment of financial assets 
The Group recognises a loss allowance for expected 
credit losses (‘ECL’) on trade receivables and contract 
assets that are measured at amortised cost. The 
amount of expected credit losses is updated at each 
reporting date to reflect changes in credit risk since 
initial recognition of the respective financial instrument.  
Expected credit losses are measured as an allowance 
equal to 12-month ECL for stage 1 assets, or lifetime ECL 
for stage 2 or stage 3 assets. An asset moves to stage 2 
when its credit risk has increased significantly since 
initial recognition. In circumstances where credit risk 
increases to the point that it becomes highly probable 
that the debt instrument will not become recoverable, 
the Group considers that this would represent a default 
event and moves to stage 3. 
The Group recognises lifetime ECL for trade receivables 
and contract assets. The ECL on these financial assets 
are estimated based on the Group’s historical credit loss 
experience, adjusted for factors that are specific to the 
debtors including observable data such as changes in 
arrears, or economic conditions that provide an 
indication that a debtor is experiencing significant 
financial difficulty, default or delinquency in payment 
that correlate with defaults. 
Lifetime ECL represents the expected credit losses that 
will result from all possible default events over the 
expected life of a financial instrument. In contrast, 12-
month ECL represents the portion of lifetime ECL that is 
expected to result from default events on a financial 
instrument that are possible within 12 months after the 
reporting date. 
Credit impaired financial assets 
At each reporting date, the Group assesses whether 
financial assets carried at amortised cost are credit-
impaired. A financial asset is ‘credit-impaired’ when one 
or more events that have a detrimental impact on the 
estimated future cash flows of the financial asset have 
occurred. The gross carrying amount of a financial 
asset is written off (either partially or in full) to the extent 
that there is no realistic prospect of recovery.  
Measurement and recognition of expected 
credit losses 
The measurement of ECL is a function of the probability 
of default, loss given default (i.e. the magnitude of the 
loss if there is a default) and the exposure at default. The 
assessment of the probability of default and loss given 
default is based on historical data adjusted by forward-
looking information. Exposure at default is represented 
by the gross carrying amount of the financial asset at 
the reporting date.  
ECL for financial assets is estimated as the difference 
between all contractual cash flows that are due to the 
Group in accordance with the contract, and all the cash 
flows that the Group expects to receive, discounted at 
the original effective interest rate.  
If the Group has measured the loss allowance for a 
financial instrument at an amount equal to lifetime ECL 
in the previous reporting period, but determines at the 
current reporting date that the conditions for lifetime 
ECL are no longer met, the Group measures the loss 
allowance at an amount equal to 12-month ECL at the 
current reporting date.  
The Group recognises an impairment gain or loss in 
profit or loss for financial assets with a corresponding 
adjustment to the carrying amount in the consolidated 
balance sheet. 
2.14 Financial liabilities and equity 
Classification as debt or equity 
Debt and equity instruments are classified as either 
financial liabilities or as equity, in accordance with the 
substance of the contractual arrangements and the 
definitions of a financial liability and an equity 
instrument. 
Equity instruments  
An equity instrument is any contract that evidences a 
residual interest in the assets of the Group after 
deducting all of its liabilities. Equity instruments issued by 
the Group are recognised as the proceeds received, net 
of direct issue costs. Repurchase of the Company’s own 
equity instruments is recognised and deducted directly 
in equity. No gain or loss is recognised in profit or loss on 
the purchase, sale, issue or cancellation of the 
Company’s own equity instruments. 
Financial liabilities  
Financial liabilities are classified as measured at 
amortised cost or fair value through profit and loss. A 
financial liability is classified as fair value through profit 
and loss if it is classified as held-for-trading, it is a 
derivative or it is designated as such on initial 
recognition. Financial liabilities at fair value through 
profit and loss are measured at fair value and net gains 
and losses, including any interest expense, are 
recognised in profit or loss. Other financial liabilities are 
measured at amortised cost using the effective interest 
method. 
Financial liabilities are non-derivative financial liabilities 
with fixed or determinable payments and they are 
included in current liabilities, except for maturities 
greater than 12 months after the reporting period where 
the item is classified as a non-current liability. The 
Group’s financial liabilities comprise trade and other 
payables (note 2.15), borrowings (note 2.16) and lease 
liabilities (note 2.7) in the consolidated balance sheet. 
2.15 Trade payables 
Trade payables are obligations to pay for goods or 
services that have been acquired in the ordinary course 
of business from suppliers. Trade payables are classified 
as current liabilities if payment is due within one year or 
less (or in the normal operating cycle of the business if 
longer). If not, they are presented as non-current 
liabilities. Trade payables are recognised initially at fair 
value and subsequently measured at amortised cost 
using the effective interest method. 
 
 
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2.16 Borrowings 
Borrowings are recognised initially at fair value, net of 
transaction costs incurred. Borrowings are subsequently 
carried at amortised cost using the effective interest 
method. 
2.17 Borrowing costs 
General and specific borrowing costs directly 
attributable to the acquisition, construction or 
production of qualifying assets, which are assets that 
take a substantial period of time to get ready for their 
intended use, are added to the cost of those assets, until 
such time as the assets are substantially ready for their 
intended use. All other borrowing costs are recognised 
in profit or loss in the period in which they are incurred.  
2.18 Derivatives and hedging activities 
Derivatives are initially recognised at fair value on the 
date a derivative contract is entered into, and they are 
subsequently remeasured to their fair value at the end 
of each reporting period. The accounting for 
subsequent changes in fair value depends on whether 
the derivative is designated as a hedging instrument 
and, if so, the nature of the item being hedged. The 
Group designates certain derivatives as either: 
• hedges of a particular risk associated with the cash 
flows of recognised assets and liabilities and highly 
probable forecast transactions (cash flow hedges), or 
• hedges of a net investment in a foreign operation (net 
investment hedges). 
Cash flow hedges and derivatives that qualify for 
hedge accounting 
The effective portion of changes in the fair value of 
derivatives that are designated and qualify as cash flow 
hedges is recognised in the cash flow hedge reserve 
within equity. The gain or loss relating to the ineffective 
portion is recognised immediately in profit or loss, within 
other gains/(losses). 
Cash flow hedges and derivatives that do not 
qualify for hedge accounting 
Changes in the fair value of any derivative instrument 
that does not qualify for hedge accounting are 
recognised immediately in profit or loss and are 
included in other gains/(losses). 
Net investment hedges 
Hedges of net investments in foreign operations are 
accounted for similarly to cash flow hedges. Any gain or 
loss on the hedging instrument relating to the effective 
portion of the hedge is recognised in other 
comprehensive income and accumulated in reserves in 
equity. The gain or loss relating to the ineffective portion 
is recognised immediately in profit or loss within other 
gains/(losses). Gains and losses accumulated in equity 
are reclassified to profit or loss when the foreign 
operation is partially disposed of or sold. 
2.19 Government grants 
Government grants are recognised at fair value when 
there is reasonable assurance that the Group has 
complied with the conditions attaching to them and the 
grants will be received. Grants related to purchase of 
assets are treated as deferred income and allocated to 
the income statement over the useful lives of the related 
assets, while grants related to expenses are treated as 
other income in the income statement. 
2.20 Share capital and other reserves 
Ordinary shares are classified as equity. Incremental 
costs directly attributable to the issue of new ordinary 
shares or options are shown in equity as a deduction, 
net of tax, from the proceeds. 
Other reserves relate to share-based payment 
transactions. 
2.21 Provisions 
Provisions are recognised when the Group has a 
present legal or constructive obligation as a result of a 
past event, it is probable that an outflow of resources 
will be required to settle the obligation, and the amount 
has been reliably estimated.  
• Restructuring provisions comprise site closure costs 
and employee termination payments. Provisions are 
not recognised for future operating losses. 
• Warranty provisions comprise the replacement cost 
of wafers expected to be returned under warranty 
• Dilapidation provisions comprise costs to fulfil 
property lease obligations at expiry of the relevant 
property lease 
• Onerous contract provisions comprise contractual 
obligations related to future payments where the 
Group expects to receive no economic benefit. 
Provisions are measured at the present value of the 
expenditures expected to be required to settle the 
obligation using a pre-tax rate that reflects the time 
value of money and the risks specific to the obligation.  
2.22 Revenue recognition 
Revenue represents the transaction price specified in a 
contract with a customer for goods, services and 
intellectual property licences provided in the ordinary 
course of business net of value added and other sales 
related taxes.  
Standard Customer Products 
Revenue is recognised when the goods are delivered 
and have been accepted by customers. For contracts 
that permit the customer to return an item, revenue is 
recognised to the extent that it is highly probable that a 
significant reversal in the amount of revenue 
recognised will not occur. 
The amount of revenue recognised is adjusted for 
expected returns, which are estimated based on 
historical data for each specific type of product, with a 
refund liability recognised as part of provisions. The 
Group reviews its estimate of expected returns at each 
reporting date and updates the amounts of any liability 
accordingly.  
Financial Statements
IQE Annual Report and Accounts 2024
125

Notes to the financial statements continued 
for the year ended 31 December 2024 
2. Material accounting policies continued 
A receivable is recognised when the goods are 
delivered, since this is the point in time that the 
consideration is unconditional, performance obligations 
have been satisfied and only the passage of time is 
required before the payment is due. 
Bespoke Customer Products  
Revenue is recognised for bespoke customer products 
with no alternative use where the Group has a 
guaranteed contractual right to payment on an over 
time basis prior to the delivery of goods to the 
customers’ premises. Revenue is recognised on an input 
basis by reference to the stage of completion of the 
manufacturing process, a process which includes an 
epitaxial wafer manufacture stage and a metrology 
and wafer test stage which are both typically 
completed within a limited number of days. 
The amount of revenue recognised is adjusted for 
expected returns, which are estimated based on 
historical data for each specific type of product with a 
refund liability recognised as part of provisions. The 
Group reviews its estimate of expected returns at each 
reporting date and updates the amounts of any liability 
accordingly.  
The Group operates supplier managed inventory 
arrangements for certain global customers where the 
Group is responsible for ensuring that contractually 
agreed levels of inventory are maintained at specified 
locations. The Group has a guaranteed contractual 
right to payment for the bespoke customer products 
manufactured under these arrangements with revenue 
recognised on an over time basis. 
Assets and liabilities arising from contracts with 
customers are separately identified. Contract assets 
relate to consideration recognised for work completed 
but not billed at the balance sheet date. Contract 
liabilities relate to obligations to transfer goods or 
services to a customer for which the entity has received 
consideration (or the amount is due) from the 
customer. 
Reactor Rental 
Reactor rental revenue relates to the sale of reactor 
capacity to customers, primarily for development 
purposes. Revenue is recognised on a straight-line basis 
over the time period to which the capacity sold relates. 
Intellectual Property Licences  
Intellectual property licence income relates to the sale 
of finite and perpetual period licences.  
Revenue is recognised for intellectual property licences 
with a right to use over a finite period when control of the 
licence is transferred to the customer in accordance with 
the terms of the relevant licensing agreement and 
collection of the resulting receivable is reasonably assured.  
Revenue is recognised for perpetual intellectual 
property licences with a right to use at a point in time 
when the following conditions are met: 
• when a signed agreement or other persuasive 
evidence of an arrangement exists; 
• the intellectual property has been delivered; 
• the licence fee is fixed or determinable; and 
• collection of the resulting receivable is reasonably 
assured. 
2.23 Segmental reporting 
Operating segments are reported in a manner consistent 
with the internal reporting provided to the Executive 
Leadership Team, who oversee the allocation of resources 
and the assessment of operating segment performance. 
2.24 Finance income and finance costs 
The Group’s finance income and finance costs include 
interest income and interest expense. 
Interest income or expense is recognised using the 
effective interest method. The effective interest rate is 
the rate that exactly discounts estimated future cash 
payments or receipts through the expected life of the 
financial instrument to the gross carrying amount of the 
financial asset, or the amortised cost of the financial 
liability. 
In calculating interest income and expense, the effective 
interest rate is applied to the gross carrying amount of 
the asset (when the asset is not credit impaired) or to 
the amortised cost of the liability. However, for financial 
assets that have become credit impaired subsequent 
to initial recognition, interest income is calculated by 
applying the effective interest rate to the amortised cost 
of the financial asset.  
Interest income or expense associated with cash and 
cash equivalents, bank borrowings and lease liabilities is 
treated as an operating activity cashflow in the 
consolidated cashflow statement. 
2.25 Pension costs 
The Group operates defined contribution pension 
schemes. A defined contribution plan is a pension plan 
under which the Group pays fixed contributions into a 
separate entity. Contributions are charged in the 
Consolidated Income Statement as they become 
payable in accordance with the rules of the scheme. 
The Group has no further obligations once the 
contributions have been made.  
2.26 Share-based payments 
The Group operates a number of equity-settled share-
based compensation plans under which the Group 
receives services from employees as consideration for 
equity instruments in IQE plc. The fair value of the 
employee services received in exchange for the grant of 
the options is recognised as an expense in the 
consolidated income statement, and as a credit in other 
reserves in the consolidated statement of changes in 
equity, except for the social security element of the award 
which is treated as cash settled with the liability 
recognised in other taxation and social security within 
trade and other payables in the consolidated balance 
sheet. The total amount to be expensed is determined by 
reference to the fair value of the options granted, 
including any market performance conditions (for 
example, an entity’s share price); excluding the impact of 
any service and non-market performance vesting 
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IQE Annual Report and Accounts 2024

 
conditions (for example, profitability, sales growth targets 
and remaining an employee of the entity over a specified 
time period) and including the impact of any non-vesting 
conditions (for example, the requirement for employees 
to save or hold shares for a specific period of time). 
Non-market performance and service conditions are 
included in assumptions about the number of options that 
are expected to vest. The total expense is recognised over 
the vesting period, which is the period over which all of the 
specified vesting conditions are to be satisfied. At the end 
of each reporting period, the Group revises its estimates of 
the number of options that are expected to vest based on 
the non-market vesting conditions. It recognises the 
impact of the revision to original estimates, if any, in the 
consolidated income statement, with a corresponding 
adjustment to equity. 
When the options are exercised, the Company issues 
new shares. The proceeds received net of any directly 
attributable transaction costs are credited to share 
capital (nominal value) and the balance to share 
premium. In the Company’s own financial statements, 
the grant of share options to the employees of 
subsidiary undertakings is treated as a capital 
contribution. Specifically, the fair value of employee 
services received (measured at the date of grant) is 
recognised over the vesting period as an increase to 
investment in subsidiary undertakings, with a 
corresponding credit to equity in the parent entity 
financial statements. 
The social security contributions payable in connection 
with the grant of the share options is considered an 
integral part of the grant itself, and the charge will be 
treated as a cash-settled transaction. 
2.27 Foreign currency 
Items included in the financial statements of each 
subsidiary are measured using the currency of the 
primary economic environment in which the subsidiary 
operates (‘the functional currency’). The consolidated 
financial statements are presented in sterling, which is 
the Group’s presentational currency. 
Foreign currency transactions are translated into the 
subsidiaries’ functional currency at the rates of 
exchange ruling at the date of the transaction, or at the 
forward currency hedged rate where appropriate. 
Monetary assets and liabilities in foreign currencies are 
translated into the subsidiaries’ functional currency at 
the rates ruling at the balance sheet date. All exchange 
differences are taken to the income statement. 
The balance sheets of overseas subsidiaries are 
translated into sterling at the closing rates of exchange 
at the balance sheet date, whilst the income 
statements are translated into sterling at the average 
rate for the period. The resulting translation differences 
are taken directly to reserves. 
Foreign exchange gains and losses on the retranslation 
of foreign currency borrowings that are used to finance 
overseas operations are accounted for on the ‘net 
investment’ basis and are recorded directly in reserves 
provided that the hedge is effective. 
2.28 Current and deferred tax 
Income tax for the year comprises current and deferred 
tax. Tax is recognised in the income statement, except to 
the extent that it relates to items recognised in other 
comprehensive income, or directly in equity, respectively. 
Current tax is the expected tax payable on the taxable 
income for the year using rates substantially enacted at 
the balance sheet date, and any adjustments to tax 
payable in respect of prior years. 
Amounts receivable from tax authorities in relation to 
research and development tax relief under the RDEC 
scheme are recognised within operating profit in the 
period in which the research and development costs 
are treated as an expense. Where amounts are 
outstanding at the year end and have not been 
formally agreed, an appropriate estimate of the 
amount is included within other receivables. 
Deferred tax is provided in full on temporary differences 
between the carrying amounts of assets and liabilities in 
the financial statements and the amounts used for 
taxation purposes. Deferred tax is calculated at the tax 
rates that have been enacted or substantially enacted 
at the balance sheet date.  
Deferred tax assets are only recognised to the extent that it 
is probable that future taxable profits will be available 
against which deductible temporary differences can be 
utilised. Deferred tax liabilities are recognised for taxable 
temporary differences, unless specifically exempt. Deferred 
tax assets and liabilities are offset when there is a legally 
enforceable right to set off current taxation assets against 
current taxation liabilities and it is the intention to settle 
these on a net basis.  
2.29 Investment in subsidiaries  
Investments in subsidiaries are held at cost of 
investment less provision for impairment in the parent 
company financial statements. 
2.30 Other equity investments 
Other equity investments are held at cost less provision 
for impairment in both the parent company and Group 
financial statements on the basis that the Group (and 
Company) does not have the ability to exert significant 
influence or control over the strategic and operating 
activities of the other equity investments. 
2.31 Alternative performance measures 
Income Statement 
Alternative income statement performance measures 
are disclosed separately in the financial statements 
after a number of adjusted non-cash items, non-
operational items and significant infrequent items that 
would distort period on period comparability, where it is 
deemed necessary by the Directors to do so to provide 
further understanding of the financial performance of 
the Group. Adjusted items are material items of income 
or expense that have been shown separately due to the 
significance of their nature or amount. The tax impact of 
adjusted items is calculated applying the relevant 
enacted tax rate for each adjusted item. Details of the 
adjusted items are included in note 5. 
Financial Statements
IQE Annual Report and Accounts 2024
127

Notes to the financial statements continued 
for the year ended 31 December 2024 
2. Material accounting policies continued 
Balance Sheet 
Alternative balance sheet performance measures for 
net debt are disclosed separately in the financial 
statements after adjustments to exclude lease liabilities 
and fair value gains/losses on derivative instruments 
where it is deemed necessary by the Directors to do so 
to provide further understanding of the financial 
position, gearing and liquidity of the Group.  
Cashflow Statement 
Alternative cash flow statement performance measures 
are disclosed separately in the financial statements that 
reflect the cash impact of adjusted items included in 
alternative income statement performance measures. 
Adjusted items are material items of income or expense 
that have been shown separately due to the 
significance of their nature or amount. Details of the 
adjusted items are included in note 5. 
3. Critical accounting judgements and key 
sources of estimation uncertainty 
The Group’s principal accounting policies are described 
in note 2. The application of these policies necessitates 
the use of estimates and judgements in a number of 
areas. Accordingly, the actual amounts may differ from 
these estimates. The main areas involving significant 
judgement and estimation are set out below: 
a) Critical accounting judgements in applying the 
Group’s accounting policies 
Going Concern 
The going concern basis of preparation of the financial 
statements has been determined by reference to 
financial projections prepared to 30 June 2026 which 
contain both a ‘base case’ and a ‘severe but plausible 
downside case’. 
In both the base case and the severe but plausible 
downside case the Group is forecast to maintain 
liquidity headroom and to comply with all financial 
covenants contained in its banking facilities throughout 
the going concern assessment period. 
Key assumptions in respect of the going concern basis 
of preparation is presented in note 2.2. 
Intangible assets – Technology development asset 
impairment 
The Group has product development costs totalling 
£2,828,000 linked to its Dilute Nitride technology where 
the Group has taken the decision to discontinue the 
development and commercialisation of the technology. 
Although Dilute Nitride technology has a number of 
potential applications, the level of customer and partner 
engagement that is required to develop the technology 
has remained low, a position that has led to the decision 
to discontinue the development and commercialisation 
of the technology given the lack of a clear near-term 
route to the delivery of commercial volumes and 
cash flows. 
 
The current lack of visibility on the timeline to 
commercialise the product development technology 
assets and the decision to discontinue development of 
the assets, has resulted in a non-cash intangible asset 
charge of £2,828,000 that has been charged to 
‘Impairment loss on intangible assets’ in the 
consolidated income statement, following the write 
down of all Dilute Nitride product development costs 
to £nil. 
Intangible assets – Technology development 
assets not yet available for use 
Intangible assets include development cost assets not 
yet available for use of £4,054,000 (2023: £2,992,000) 
which have been reviewed for impairment as at the 
reporting date. 
The Group is committed to the technical completion 
and commercialisation of each of its technology 
development assets which are governed and controlled 
by reference to a combination of technical 
development objectives and market and customer 
related commercial plans. The recoverable amount of 
each technology development project is determined 
based on value in use calculations, using cash flow 
projections in line with the expected useful economic life 
of each asset. The value in use calculations are based 
on management approved risk-adjusted cash flow 
forecasts for each project and comprise assumptions 
that include cost to complete forecasts for each 
technology development and commercial forecasts 
relating to the expected level of market penetration, 
revenue and cost of production for each technology. 
 
 
128
IQE Annual Report and Accounts 2024

 
Identification of Cash Generating Units (‘CGUs’) for 
impairment testing and allocating impairment 
losses 
Identification of cash generating units 
Under IAS 36, impairment is assessed at the individual 
asset level except in circumstances where individual 
assets do not generate cash inflows that are largely 
independent from other assets. In these circumstances 
impairment is tested at the CGU or group of CGUs level. 
Based on the nature of the Group’s operations, multiple 
production facilities and epitaxial assets are considered 
by the Group to form distinct CGUs. This reflects the 
interdependency and dual-purpose nature of the 
Group’s manufacturing facilities, and that production 
can (and is) transferred between sites to suit capacity 
planning and operational efficiency. 
Given the interdependency of the Group’s 
manufacturing facilities and operations the Group 
considers each of the Photonics and Wireless operating 
segments to be CGUs based on the type of production. 
In the judgement of the Directors, the assets of the 
Group’s Taiwanese subsidiary, which the Directors are 
considering divesting as part of the ongoing strategic 
review, is included in the Wireless CGU due to its 
interdependency with the rest of that CGU.  
CGU-level impairment testing has been performed at 
the level of the Photonics and Wireless CGUs. An 
impairment loss of £3,066,000 has been identified for 
the Wireless CGU. Had the assets of the Group’s 
Taiwanese subsidiary been identified as a separate 
CGU and tested separately from the remainder of the 
Wireless CGU, no impairment would have been 
identified in respect of the Taiwanese assets; though a 
larger impairment may have been identified in respect 
of the remainder of the Wireless CGU. 
Allocating impairment losses 
When assigning an impairment loss to assets within the 
scope of IAS 36, the impairment loss is required to first 
reduce the carrying value of goodwill to nil and then 
allocate any remaining loss pro rata based on the 
carrying value of other assets in the CGU, except that 
the carrying value of an individual asset within the CGU 
should not be reduced below the higher of its fair value 
less costs of disposal, its value in use and zero. The 
Wireless CGU does not contain any goodwill. 
In the Directors judgement, developments in the 
strategic review post year end have led the directors to 
conclude that the fair value less costs of disposal of 
individual assets in the Wireless CGU for the Taiwan-
based assets of the CGU were in excess of their carrying 
value at the reporting date. As a result, the impairment 
loss recognised in the Wireless CGU has been allocated 
pro-rata to US-based intangible and tangible assets (i.e. 
not to Taiwanese assets), reflecting production volume 
allocations and capacity planning assumptions and 
cash flow forecasts used to estimate the impairment. 
Refer to note 13 for further details. 
Adjustments to profit 
Alternative performance measures are disclosed 
separately in the financial statements after a number of 
adjusted non-cash, non-operational or significant and 
infrequent items that would distort period on period 
comparability, where it is deemed necessary by the 
Directors to do so to provide further understanding of 
the financial performance of the Group. Details of the 
adjusted items are included in note 5. 
b) Critical accounting estimates and key sources 
of estimation uncertainty 
3.1 Cash Generating Unit impairment testing 
At the end of each reporting period, the Group assesses 
whether there is any indication of impairment of non-
current assets allocated to the Group’s CGUs. Multiple 
production facilities and production assets are included in 
a single CGU reflecting that production can (and is) 
transferred between sites and production assets for 
different operating segments to suit capacity planning and 
operational efficiency. Given the interdependency of 
facilities and production assets, non-current assets are 
tested for impairment by grouping operational sites and 
production assets into CGUs based on type of production. 
The Group has continued to experience weak customer 
demand and low customer orders following the global 
semiconductor industry downturn as market recovery 
has been slower than anticipated in key sectors, driven 
primarily by weak consumer demand in end markets. 
Weak customer demand, resulting in depressed sales 
that have remained broadly flat year-on-year, has 
resulted in the Group continuing to deliver either low 
levels of profitability or operating losses in each of its 
Wireless and Photonics CGUs, a position that has been 
considered as part of the impairment tests. 
Photonics  
The recoverable amount of the Photonics CGU of 
£121,751,000, determined based on value in use calculations 
is greater than the carrying amount (£121,196,000) of the 
associated intangible assets, property, plant and 
equipment, right-of-use assets and working capital 
allocated to the CGU such that no impairment of Photonics 
CGU assets has been identified. 
Key assumptions and sensitivity analysis in respect of 
the recoverable amount of the Photonics CGU is 
presented in note 13. 
Wireless 
The recoverable amount of the Wireless CGU of 
£88,341,000, determined based on value in use calculations 
is lower than the carrying amount (£91,407,000) of the 
associated intangible assets, property, plant and 
equipment, right-of-use assets and working capital 
allocated to the CGU such that an impairment of Wireless 
CGU assets has been identified. 
The noncash impairment loss of £3,066,000 relates to the 
Group’s US related wireless assets and has been allocated 
to the relevant US based intangible and tangible assets 
which has resulted in a non-cash intangible asset 
impairment charge of £885,000 and a non-cash property, 
plant and equipment impairment charge of £2,181,000. 
Key assumptions and sensitivity analysis in respect of 
the recoverable amount of the Wireless CGU is 
presented in note 13. 
Financial Statements
IQE Annual Report and Accounts 2024
129

Notes to the financial statements continued 
for the year ended 31 December 2024 
3. Critical accounting judgements and key 
sources of estimation uncertainty continued 
c) Other accounting estimates and sources of 
estimation uncertainty 
3.2 Useful economic lives of development cost 
intangible assets  
The periods of amortisation used for product and 
process development cost assets require estimates to 
be made on the estimated useful economic lives of the 
intangible assets to determine an appropriate rate of 
amortisation. Capitalised development costs are 
amortised in line with the expected production volume 
profile of the products to which they relate over the 
period during which economic benefits are expected to 
be received, which is typically between 3-8 years. 
The carrying value of development cost intangible 
assets is £12,528,000 (2023: £19,063,000). The 
amortisation charge for development cost intangible 
assets in the current year is £5,084,000 (2023: 
£5,996,000). If useful economic lives of development 
cost intangible assets were reduced by 1 year across 
the whole portfolio of assets, the impact on current year 
amortisation would be to increase the charge by 
£786,000 (2023: £855,000) to £5,870,000 (2023: 
£6,851,000). 
3.3 Valuation of lease liabilities and right-of-use 
assets 
The application of IFRS 16 requires the Group to make 
judgements and estimates that affect the valuation of 
the lease liabilities and the valuation of right-of-use 
assets that includes determining the contracts in scope 
of IFRS 16, determining the contract term and 
determining the interest rate used for discounting of 
future cash flows. 
The lease term determined by the Group generally 
comprises the non-cancellable period of lease 
contracts, periods covered by an option to extend the 
lease if the Group is reasonably certain to exercise that 
option, and periods covered by an option to terminate 
the lease if the Group is reasonably certain not to 
exercise that option.  
Exercise of extension options, principally existing in the 
Group’s property leases, are assumed to be reasonably 
certain, except for the Group’s Newport facility where it 
has been assumed that it is reasonably certain that the 
Group will exercise its buy-out option at the end of the 
initial lease term. The same term applied to the length of 
the lease contract has been applied to the useful 
economic life of right-of-use assets. 
The present value of the lease payments applicable to 
the Group’s portfolio of property and plant leases has 
been determined using a discount rate that represents 
the Group’s incremental rate of borrowing at the date of 
inception or modification of the lease, assessed as 
2.25%-8.20% depending on the lease characteristics for 
existing historic leases. 
If the incremental rate of borrowing decreased by 0.10%, 
the impact would be to increase the lease liability by 
£140,000 (2023: £156,000). If the incremental rate of 
borrowing decreased by 1.0%, the impact would be to 
increase the lease liability by £1,463,000 (2023: 
£1,560,000). 
3.4 Share-based payments 
Share-based payment charges associated with long-
term incentive plans are calculated taking account of 
an assessment of the achievability of relevant 
performance conditions. The share-based payment 
charge for long-term incentive awards would be 
£138,000 (2023: £713,000) greater in 2024 if it were 
assumed that all performance criteria for existing 
awards would be met. 
 
 
130
IQE Annual Report and Accounts 2024

 
4. Segmental analysis 
4.1 Description of segments and principal activities 
The Chief Operating Decision-Maker is defined as the Executive Leadership Team (‘ELT’). The ELT, prior to the 
departure of the Chief Executive Officer on 29 October 2024 consisted of the Chief Executive Officer, Chief Financial 
Officer, Chief Technology Officer, Chief People Officer, Executive VP Global Business Development, SVP of 
Communications Infrastructure and Security Business Unit, VP US Sales, Director of Corporate Marketing, VP US EPI 
Operations and Substrates, VP Asia and Europe EPI Operations, VP Government Affairs, Chief of Staff and the 
Executive VP General Counsel & Company Secretary. Subsequent to the departure of the Chief Executive Officer, the 
ELT has been restructured and from November 2024 the ELT consists of the Interim Chief Executive Officer and Chief 
Financial Officer, Chief Technology and Operating Officer, Chief Revenue Officer and the Executive VP General 
Counsel, Company Secretary and Chief People Officer. The Executive Leadership Team consider the group’s 
performance from a product perspective and have identified three primary reportable segments:  
• Wireless – this part of the business manufactures and sells compound semiconductor material for the wireless 
market which includes radio frequency devices that enable wireless communications. 
• Photonics – this part of the business manufactures and sells compound semiconductor material for the photonics 
market which includes applications that either transmit or sense light, both visible and infrared. 
• CMOS++ – this part of the business manufactures and sells advanced semiconductor materials related to silicon 
which include the combination of the advanced properties of compound semiconductors with those of lower-
cost silicon technologies. Starting in 2025, the Group will no longer report CMOSS++ revenue as a standalone 
segment reflecting the strategic rebalancing of the business' product portfolio and a shift in focus towards 
diversification into GaN Power and MicroLED. 
The ELT primarily use revenue and a measure of adjusted EBITDA to assess the performance of the operating 
segments. Measures of total assets and liabilities for each reportable segment are not reported to the ELT and 
therefore have not been disclosed. 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
131

Notes to the financial statements continued 
for the year ended 31 December 2024 
4. Segmental analysis continued 
4.2 Adjusted EBITDA Loss 
Adjusted EBITDA excludes the effects of significant non-cash, non-operational or significant and infrequent items of 
income and expenditure which may have an impact on the quality of earnings, such as restructuring costs, CEO and 
CFO recruitment costs, CEO severance costs and impairments where the impairment is the result of an isolated, 
non-recurring event. Adjusted EBITDA also excludes the effects of equity settled share-based payments.  
Finance costs are not allocated to segments because treasury and the cash position of the group is managed 
centrally. 
Revenue
2024 
£’000
2023 
£’000
Wireless
67,295
53,877
Photonics
49,876
59,098
CMOS++
863
2,277
Revenue
118,034
115,252
Adjusted EBITDA
Wireless
16,205
12,347
Photonics
5,840
6,189
CMOS++
(1,517)
(1,919)
Central corporate costs
(12,416)
(12,304)
Adjusted EBITDA
8,112
4,313
Depreciation
(20,343)
(16,976)
Amortisation
(6,390)
(7,688)
Gain on remeasurement
202
-
Profit on disposal of PPE
62
152
Adjusted operating loss
(18,357)
(20,199)
Adjusted items (see note 5)
Wireless
(7,441)
(1,004)
Photonics
(5,974)
(2,445)
CMOS++
(669)
(45)
Central corporate costs
(517)
(2,086)
Operating loss
(32,958)
(25,779)
Finance costs
(3,947)
(3,032)
Loss before tax
(36,905)
(28,811)
 
Adjusted items include £8,418,000 (2023: £nil) of non-cash impairment charges of which £5,159,000 (2023: £nil) 
relates to the wireless segment and £3,259,000 (2023: £nil) relates to the photonics segment. 
 
132
IQE Annual Report and Accounts 2024

 
4.3 Revenue – Disaggregation of segmental revenue from contracts with customers 
The group derives revenue from the transfer of goods, services and intellectual property over time and at a point in 
time. Revenues from external customers derive from the sale of standard or bespoke compound semiconductor 
material, or from the sale or licensing of intellectual property. 
Disaggregate Segment Revenue
Wireless 
2024 
£’000
Photonics 
2024 
£’000
CMOS++ 
2024 
£’000
Total
2024 
£’000
Timing of revenue recognition
At a point in time
Standard customer products
–
7,852
–
7,852
Intellectual property licences
–
–
–
–
Over time
Bespoke customer products
67,295
42,024
863
110,182
Total revenue
67,295
49,876
863
118,034
 
Disaggregate Segment Revenue
Wireless 
2023 
£’000
Photonics 
2023 
£’000
CMOS++ 
2023 
£’000
Total
2023 
£’000
Timing of revenue recognition
At a point in time
Standard customer products
–
8,982
–
8,982
Intellectual property licences
–
–
–
–
Over time
Bespoke customer products
53,877
50,116
2,277
106,270
Total revenue
53,877
59,098
2,277
115,252
Included within bespoke customer product revenue is revenue of £45,379,000 (2023: £50,712,000) that relates to 
supplier managed inventory arrangements where billing occurs from the earlier of a specified contractual backstop 
date following delivery, or when the product is drawn from inventory by the customer. 
Revenues of approximately £37,752,000 (2023: £45,961,000) are derived from two customers (2023: three) who each 
account for greater than 10% of the Group’s total revenues: 
Customer
Segment
2024 
£’000
2024
% revenue
2023 
£’000
2023
% revenue
Customer 1 
Wireless
22,169
19%
18,268
16%
Customer 2
Photonics
N/A
N/A
13,625
12%
Customer 3
Photonics & Wireless
15,583
13%
14,067
12%
There are no customers in the CMOS++ segment that account for greater than 10% of the Group’s total revenue. 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
133

Notes to the financial statements continued 
for the year ended 31 December 2024 
4. Segmental analysis continued 
4.4 Geographical information 
Revenue by location of customer 
 
2024 
£’000
2023 
£’000
Americas
52,025
54,520
United States of America
51,974
54,448
Rest of Americas
51
72
Europe, Middle East & Africa (EMEA)
24,914
16,226
France
663
1,319
Germany
1,618
1,853
Israel
5,008
3,826
United Kingdom
12,642
7,490
Rest of EMEA
4,983
1,738
Asia Pacific
41,095
44,506
People’s Republic of China
1,928
2,157
Japan
6,456
14,326
Taiwan
27,142
25,174
Rest of Asia Pacific
5,569
2,849
Total revenue
118,034
115,252
Non-current assets by location 
Property, plant and equipment
Intangible assets
Right-of-useassets
2024 
£’000
2023 
£’000
2024 
£’000
2023 
£’000
2024 
£’000
2023 
£’000
USA
32,651
44,733
13,679
17,849
15,312
8,354
Taiwan
28,060
32,495
1,171
1,623
386
433
UK
52,963
52,325
14,100
15,906
26,512
29,108
113,674
129,553
28,950
35,378
42,210
37,895
 
 
134
IQE Annual Report and Accounts 2024

 
5. Adjusted performance measures (‘APM’) 
The Directors assess the operating performance of the Group based on both statutory and adjusted measures. 
Adjusted measures include adjusted earnings before interest, tax, depreciation, amortisation, impairment and 
profit/loss on disposal of PPE and intangibles (AEBITDA), AEBITDA margin, adjusted operating loss, adjusted loss 
before income tax and adjusted losses per share. These measures are collectively described as Adjusted 
Performance Measures (APMs) in this Annual Report. The Directors believe that APMs provide a useful comparison of 
business trends and performance and allow management and other stakeholders to better compare the 
performance of the Group between periods, excluding the effects of certain non-cash charges, non-operational 
items and significant infrequent items that would distort period on period comparability. The Group uses these APMs 
for internal planning, budgeting, reporting and assessment of the performance of the business. The term adjusted is 
not defined under IFRS and therefore the APMs may not be directly comparable with similarly titled measures used 
by other companies. 
Adjusted profit measures 
The following table summarises the statutory and adjusted profit and loss account measures for the year together 
with the adjustments made to each line item. 
Adjusted 
Results 
£’000
Adjusted 
Items 
£’000
2024
Reported 
Results 
£’000
Adjusted 
Results 
£’000
Adjusted 
Items 
£’000
2023
Reported 
Results 
£’000
Revenue
118,034
–
118,034
115,252
–
115,252
Cost of sales
(112,543)
(1,045)
(113,588)
(111,244)
(1,680)
(112,924)
Gross profit/(loss)
5,491
(1,045)
4,446
4,008
(1,680)
2,328
SG&A
(24,109)
(5,873)
(29,982)
(26,167)
(6,319)
(32,486)
Impairment of intangibles
–
(3,772)
(3,772)
–
–
–
Impairment of PPE
–
(4,615)
(4,615)
–
–
–
Impairment of right-of-use assets
–
(31)
(31)
–
–
–
Gain on remeasurement of right-of-use
asset
202
–
202
–
–
–
Impairment (loss)/reversal on 
receivables
(3)
–
(3)
1,808
–
1,808
Gains on acquisitions
–
–
–
–
2,419
2,419
Profit on disposal of PPE 
62
735
797
152
–
152
EBITDA
8,112
(6,918)
1,194
4,313
(5,580)
1,267
Depreciation
(20,343)
–
(20,343)
(16,976)
–
(16,976)
Amortisation
(6,390)
–
(6,390)
(7,688)
–
(7,688)
Impairment of intangibles
–
(3,772)
(3,772)
–
–
–
Impairment of PPE
–
(4,615)
(4,615)
–
–
–
Impairment of right-of-use assets
–
(31)
(31)
–
–
–
Gain on remeasurement of right-of-use
asset
202
–
202
–
–
–
Profit on disposal of PPE
62
735
797
152
–
152
Operating loss
(18,357)
(14,601)
(32,958)
(20,199)
(5,580)
(25,779)
Finance costs
(3,947)
–
(3,947)
(3,032)
–
(3,032)
Loss before tax
(22,304)
(14,601)
(36,905)
(23,231)
(5,580)
(28,811)
Taxation
(1,430)
157
(1,273)
(759)
192
(567)
Loss for the period
(23,734)
(14,444)
(38,178)
(23,990)
(5,388)
(29,378)
Loss per share attributable to owners 
of the parent company during the year
Basic loss per share
(2.46p)
1.50p
(3.96p)
(2.68p)
0.60p
(3.28p)
Diluted loss per share
(2.46p)
1.50p
(3.96p)
(2.68p)
0.60p
(3.28p)
 
 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
135

Notes to the financial statements continued 
for the year ended 31 December 2024 
5. Adjusted performance measures (‘APM’) continued 
Adjustments to operating profit 
 
2024
Cost of 
sales £’000
SG&A 
£’000
Impairments
£’000
Profit on 
disposal 
£’000
2024
Adjusted 
Pre-Tax 
Items 
£’000
Tax 
Impact 
£’000
2024 
Adjusted 
Items 
£’000
Share-based payments
(1,045)
(1,929)
–
–
(2,974)
157
(2,817)
Share-based payments – CEO 
recruitment
–
(77)
–
–
(77)
–
(77)
Share-based payments – CFO 
recruitment
–
(123)
–
–
(123)
–
(123)
CEO recruitment
–
(307)
–
–
(307)
–
(307)
CEO severance
–
(416)
–
–
(416)
–
(416)
Wireless CGU impairment
–
–
(3,066)
–
(3,066)
–
(3,066)
Restructuring
–
(3,021)
(5,352)
735
(7,638)
–
(7,638)
Total
(1,045)
(5,873)
(8,418)
735
(14,601)
157
(14,444)
 
2023
Cost of sales 
£’000
SG&A
£’000
Other 
Gains 
£’000
2023
Adjusted 
Pre-Tax
 Items
£’000
Tax 
Impact 
£’000
2023 
Adjusted 
Items 
£’000
Share-based payments
(1,680)
(840)
–
(2,520)
192
(2,328)
Share-based payments – CEO 
recruitment
–
(45)
–
(45)
–
(45)
CEO recruitment
–
(300)
–
(300)
–
(300)
CFO severance & recruitment
–
(454)
–
(454)
–
(454)
Restructuring
–
(4,680)
–
(4,680)
–
(4,680)
Gain on deemed disposal of JV
–
–
2,419
2,419
–
2,419
Total
(1,680)
(6,319)
2,419
(5,580)
192
(5,388)
The nature of the adjusted items is as follows: 
Share-based payments  
The £2,974,000 (2023: 2,520,000) charge relates to share-based payments recorded in accordance with IFRS 2 
‘Share-based payment’. Share-based payments which arise each financial year are classified as an APM due to the 
non-cash charge being partially outside of the Group's control as it is based on factors such as share price volatility 
and interest rates which may be unrelated to the performance of the Group during the period in which the expense 
occurred. 
Chief Executive Officer recruitment 
The charge of £77,000 (2023: £45,000) relates to the share-based payment charge for new starter awards granted 
to the former CEO upon recruitment. The charge of £307,000 (2023: £300,000) relates to costs associated with the 
cash element of the new starter award granted to the former CEO upon recruitment.  
Chief Financial Officer recruitment  
The charge of £123,000 (2023: £nil) relates to the share-based payment charge for new starter awards granted to 
the CFO. Chief Financial Officer severance and recruitment costs of £454,000 in 2023 related to settlement and legal 
costs in relation to the former Chief Financial Officer and recruitment costs in relation to the newly appointed Chief 
Financial Officer. 
Chief Executive Officer Severance  
The charge of £416,000 (2023: £nil) relates to costs, primarily related to payments in lieu of notice, associated with the 
termination of the former CEO’s employment. 
 
 
136
IQE Annual Report and Accounts 2024

 
Wireless CGU impairment 
An impairment was identified in the year relating to the Wireless CGU determined based on value in use calculations. The 
non-cash impairment loss of £3,066,000 relates to the Group’s US related wireless assets and has been allocated to the 
relevant US based intangible and tangible assets which has resulted in a non-cash intangible asset impairment charge of 
£885,000 and a non-cash property, plant and equipment impairment charge of £2,181,000 (see note 13). 
Restructuring 
The charge of £7,638,000 (2023: £4,680,000) relates to the consolidation of the Group’s US, UK and Asian 
manufacturing operations and the restructuring of the Group’s Executive Leadership Team. 
Group Restructuring 
 Group restructuring charges of £266,000 (2023: £nil) consist of employee-related costs of £266,000 (2023: £nil) 
related to the restructuring of the Group’s Executive Leadership Team following the departure of the former CEO. 
Group restructuring charges of £1,290,000 in 2023 related to employee costs and redundancies associated with 
a group-wide restructuring programme. 
US Restructuring 
 US restructuring charges of £763,000 (2023: £3,390,000) relating to the closure of the Group’s manufacturing 
facility in Pennsylvania consist of employee-related costs of £261,000 (2023: £1,789,000), site decommissioning 
costs of £1,014,000 (2023: £1,601,000), non-cash property, plant and equipment asset impairments of £89,000 
(2023: £nil) and profit on disposal of property, plant and equipment of £632,000 (2023: £nil). As at 31 December 
2024, cumulative restructuring charges of £6,164,000 (2023: £5,346,000) have been incurred. No further 
restructuring charges associated with the closure of the site are expected in 2025. 
 
 US restructuring charges of £4,889,000 (2023: £nil) relating to the strategic re-positioning of the Group’s 
Massachusetts and North Carolina manufacturing sites consist of non-cash property, plant and equipment 
asset impairments of £2,002,000 (2023: £nil) and non-cash intangible development cost impairments of 
£2,887,000 (2023: £nil). 
UK Restructuring 
 UK restructuring charges of £1,584,000 (2023: £nil) relating to the consolidation of the Group’s South Wales 
activities into its Newport manufacturing site consist of employee-related costs of £447,000 (2023: £nil), site 
decommissioning costs of £897,000 (2023: £nil), non-cash property, plant and equipment asset impairments of 
£343,000 (2023: £nil) and profit on disposal of PPE of £103,000 (2023: £nil). 
Asian Restructuring 
 Taiwanese restructuring charges of £155,000 (2023: £nil) consist of legal and professional fees relating to the 
dual track IPO or sale of the Group’s Taiwanese manufacturing operations. 
 
 Singapore restructuring credit of £19,000 (2023: £nil) relates to certain final cash receipts linked to the voluntary 
liquidation of the Group’s Singapore subsidiaries, where manufacturing operations ceased in June 2022.  
Gain on deemed disposal of joint venture 
Gain on acquisitions of £nil (2023: £2,419,000) relates to the gain recognised on acquisition of the remaining shares in 
the Group’s joint venture, CSC, in 2023 increasing its shareholding to 100%.  
 
 
Financial Statements
IQE Annual Report and Accounts 2024
137

Notes to the financial statements continued 
for the year ended 31 December 2024 
5. Adjusted performance measures (‘APM’) continued 
Cash impact of adjusting items 
The cash impact of adjusting items is set out below: 
Cash Impact
Cash from 
operations 
£’000
Investing 
activities 
£’000
2024 Total
£’000
Cash from 
operations 
£’000
Investing 
activities 
£’000
2023 Total 
£’000
Reported cash flows
2,472
(10,194)
(7,722)
10,074
–
10,074
Share-based payments – social 
security
123
–
123
–
–
–
CEO recruitment
–
–
–
463
–
463
CEO severance
196
–
196
–
–
–
CFO severance & recruitment
–
–
–
454
–
454
Onerous contract
394
–
394
256
–
256
Restructuring
4,092
(4,828)
(736)
4,497
–
4,497
Total adjusted items
4,805
(4,828)
(23)
5,670
–
5,670
Adjusted cash flows
7,277
(15,022)
(7,745)
15,744
–
15,744
Onerous contract  
Onerous contract cash flows reflect royalty payments relating to the Group’s cREO™ technology where development 
activity ceased in prior periods totals £394,000 (2023: £256,000). 
Restructuring 
Cash generated in the year from the restructuring of the Group’s Executive Leadership Team and the consolidation 
of the Group’s US, UK and Asian manufacturing operations totalled £736,000 (2023: £4,497,000 cash defrayed) 
Group Restructuring 
 Cash costs defrayed of £64,000 (2023: £nil) consist of employee-related costs related to the restructuring of the 
Group’s Executive Leadership Team following the departure of the former CEO. Cash costs of £1,290,000 in 2023 
related to employee costs and redundancies associated with a group-wide restructuring programme. 
US Restructuring 
 Cash costs relating to the closure of the Group’s manufacturing facility in Pennsylvania total £6,856,000 (2023: 
£4,037,000) of which, £2,820,000 (2023: £3,087,000) has been defrayed in the current period. Cash proceeds on 
disposal of PPE is included in investing activities and totals £4,061,000 (2023: £nil) in the year. 
UK Restructuring 
 Cash costs relating to the consolidation of the Group’s South Wales activities into its Newport manufacturing site 
total £1,072,000 (2023: £nil). Cash proceeds on disposal of property, plant and equipment is included in investing 
activities and totals £767,000 (2023: £nil) in the year. 
Asian Restructuring 
 Cash costs relating to the dual track IPO or sale of the Group’s Taiwanese manufacturing operations total 
£155,000 (2023: £nil) 
  
 Final cash receipts linked to the voluntary liquidation of the Group’s Singapore subsidiaries, where 
manufacturing operations ceased in June 2022 total £19,000.  
 
Adjustments to net debt 
Adjusted net debt
2024 
£’000
2023 
£’000
Net debt (note 29)
(69,330)
(48,528)
Lease liabilities due after one year
44,872
40,435
Lease liabilities due within one year
5,658
5,865
Adjusted net debt
(18,800)
(2,228)
 
138
IQE Annual Report and Accounts 2024

 
6. Operating loss 
2024 
£’000
2023 
£’000
The operating loss is stated after charging/(crediting):
Depreciation of property, plant and equipment
16,552
13,186
Depreciation of right-of-use assets
3,791
3,790
Amortisation of intangible assets
6,390
7,688
Gain on remeasurement of right-of-use asset
(202)
–
Services provided by auditors
821
830
Expenses relating to variable lease payments not included in the measurement of the 
lease liability
66
4,818
Research and development (net)
4,489
1,823
Exchange gains
(511)
(1,108)
Cost of raw materials consumed
45,255
43,412
Profit on disposal of PPE*
(62)
(152)
Adjusted items (see note 5)
14,601
5,580
Share-based payments
2,971
2,520
Share-based payments – CEO & CFO recruitment
203
45
CEO recruitment
307
300
CEO severance
416
–
CFO severance & recruitment
–
454
Gain on deemed disposal of JV
–
(2,419)
Wireless CGU impairment
3,066
–
Restructuring
7,638
4,680
* Excludes the adjustment for profit on disposal of PPE relating to restructuring which is separately disclosed as part of the Group’s 
adjusted items. 
Expenses relating to variable lease payments not included in the measurement of the lease liability principally relate 
to the variable cash costs of production based on usage that were payable to the Group’s joint venture, CSC, 
associated with the Group’s right-of-use of the joint venture’s assets. The Group acquired its joint venture, CSC, on 22 
September 2023. 
2024 
£’000
2023 
£’000
Services provided by auditors
Fees payable to the Company’s auditor and its associates for the audit of the parent 
company and consolidated financial statements
720
671
Additional fees payable in relation to the audit of the parent company and consolidated
financial statements for the year ended 31 December 2023
25
–
Additional fees payable in relation to the audit of the parent company and consolidated
financial statements for the year ended 31 December 2022
–
134
Fees payable to the Company’s auditor and its associates for other services:
• Audit of the Company’s subsidiaries
25
25
• Audit-related assurance services
51
–
Total KPMG LLP (Group auditors)
821
830
 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
139

Notes to the financial statements continued 
for the year ended 31 December 2024 
7. Employee costs 
2024 
£’000
2023 
£’000
Employee costs (including Directors’ remuneration)
Wages and salaries
30,012
33,960
Social security costs
3,364
3,566
Other pension costs
2,096
2,024
Share-based payments
3,174
2,565
38,646
42,115
2024 
Number
2023 
Number
Average number of employees (including Directors)
Manufacturing
396
446
Selling, general and administrative
121
131
517
577
Directors’ emoluments, share options and other long-term incentive plan details, including details of all outstanding 
options and long-term incentive awards, and the value of Director pension contributions paid, are set out in the 
Remuneration Report where the relevant disclosures have been highlighted as audited.  
Key management within the Group comprises members of the Executive Leadership Team and Non-Executive 
Directors. Compensation to key management in 2024 totalled £4,151,000 (2023: £4,212,000), consisting of emoluments 
and other benefits in kind of £4,023,000 (2023: £4,106,000) and pension contributions of £128,000 (2023: £106,000). The 
charge for share-based payment awards to key management totalled £1,007,000 (2023: £1,001,000). A charge for 
termination costs payable to key management who have left the business totalled £628,000 (2023: £424,000). 
8. Finance costs 
2024 
£’000
2023 
£’000
Bank and other loans
(2,293)
(1,810)
Interest expense on lease liabilities
(1,654)
(1,222)
(3,947)
(3,032)
 
 
 
140
IQE Annual Report and Accounts 2024

 
9. Taxation 
Income tax expense
2024 
£’000
2023 
£’000
Current tax on profits for the year
1,106
1,112
Total current tax charge
1,106
1,112
Origination and reversal of temporary differences
85
(407)
Adjustment in respect of prior years
82
(138)
Total deferred tax charge/(credit)
167
(545)
Total tax charge
1,273
567
The tax on the Group’s loss before tax differs from the theoretical amount that would arise from applying the 
standard rate of corporation tax in the UK of 25.0% (2023: 23.5%) as follows: 
2024 
£’000
2023 
£’000
Loss on ordinary activities before taxation
(36,905)
(28,811)
Tax credit at 25.0% thereon (2023: 23.5%)
(9,226)
(6,771)
Effects of:
Expenses not deductible for tax purposes
1,241
2,366
Overseas tax rate differences
(28)
(126)
Temporary differences for which no deferred tax asset was recognised
8,566
4,787
Share option schemes
638
449
Adjustments in respect of prior years
82
(138)
Total tax charge for the year
1,273
567
Recognition of deferred tax assets is based on an assessment of future cash flow forecasts and the associated 
profitability of the Group’s operations, an assessment which has restricted the ability of the Group to recognise 
deferred tax assets for UK, US and Singapore trading losses.  
Deferred tax asset recognition has been restricted in the UK and US to reflect future forecast profitability, an 
assessment that includes the impact of the continuation of weak customer demand as market recovery is forecast 
to remain subdued in certain key sectors following the global semiconductor industry downturn. As a result, lower 
utilisation of UK and US deferred tax assets is projected, which has restricted the ability to recognise deferred tax 
assets for current year losses.  
Deferred tax asset recognition has not been recognised in Singapore due to the closure of the manufacturing site in 
2022.  
The share option schemes amount shown above represents the change in the expected tax impact on the exercise 
of options, principally reflecting the reduction in future corporation tax deductions associated with a movement in 
the number of options where performance criteria are expected to be achieved and a reduction in the Group 
share price. 
The Group’s results report certain financial measures after a number of adjusted items with a tax impact of £157,000 
(2023: £192,000) as detailed in note 5. The tax impact of adjusted items, excluding share-based payments, is £nil due 
to the restricted recognition of deferred tax assets. 
Deferred tax is measured at the tax rates that are expected to apply in the relevant territory in the period when the 
asset is realised or the liability is settled, based on tax rates and tax laws that have been substantively enacted at 
the balance sheet date. 
Any closing UK deferred tax asset or liability in the financial statements has been recognised in accordance with the 
rate enacted as part of the Finance Act 2021 with any timing differences recognised at a corporation tax rate of 25%.  
Amounts recognised directly in equity
2024 
£’000
2023 
£’000
Aggregate current and deferred tax arising in the period and not recognised in net profit 
or loss or other comprehensive income but directly debited or credited to equity:
Deferred tax: Share options
(33)
(142)
Total tax charge to equity for the year
(33)
(142)
 
 
Financial Statements
IQE Annual Report and Accounts 2024
141

Notes to the financial statements continued 
for the year ended 31 December 2024 
10.  Deferred Taxation  
Deferred tax 
2024 
£’000
2023 
£’000
At 1 January
(604)
(1,065)
Income statement credit recognised in the year
(167)
545
Tax charge recognised directly in equity
(33)
(142)
Exchange differences
30
58
At 31 December
(774)
(604)
The movement in deferred tax assets and liabilities during the year, without taking into consideration the offsetting of 
balances within the same tax jurisdiction, is as follows: 
Group 
Deferred tax liabilities
 
Right of Use 
Asset 
£’000
Accelerated
Capital 
Allowances 
£’000
Intangibles 
£’000
 
Total 
£’000
At 1 January 2023
(10,128)
(12,454)
(3,183)
(25,765)
(Charge)/credit to income statement
708
968
(29)
1,647
Exchange differences
139
223
42
404
At 31 December 2023
(9,281)
(11,263)
(3,170)
(23,714)
(Charge)/credit to income statement
(1,014)
(355)
1,491
122
Exchange differences
(88)
40
18
(30)
At 31 December 2024 before set-off
(10,383)
(11,578)
(1,661)
(23,622)
Set-off of tax*
22,848
At 31 December 2024 after set-off
(774)
 
Deferred tax assets
Leases 
£’000
Tax Losses 
£’000
Other 
£’000
Total
£’000
At 1 January 2023
12,479
11,798
423
24,700
Charged to income statement
(957)
(761)
616
(1,102)
Charged to equity
–
–
(142)
(142)
Exchange differences
(146)
(186)
(14)
(346)
At 31 December 2023
11,376
10,851
883
23,110
Charged to income statement
686
(729)
(246)
(289)
Charged to equity
–
–
(33)
(33)
Exchange differences
85
–
(25)
60
At 31 December 2024 before set-off
12,147
10,122
579
22,848
Set-off of tax*
(22,848)
At 31 December 2024 after set-off
–
*  Deferred tax assets and deferred tax liabilities can only be offset in the statement of financial position if the entity has the legal right to settle 
current tax amounts on a net basis and the deferred tax amounts are levied by the same taxing authority on the same entity or different 
entities that intend to realise the asset and settle the liability at the same time. 
Deferred tax assets are recognised for tax losses carried forward to the extent that the realisation of the related tax 
benefit through future taxable profits from the same trade is probable. The Group assesses future forecast taxable 
profit as probable by reference to Board-approved five-year cashflow forecasts consistent with the underlying 
cashflow forecasts used in the Group’s goodwill impairment review. Any potential deferred tax asset assessed by 
reference to the level of future forecast taxable profit over this five-year period has, in the current year, been 
restricted to the extent of taxable temporary differences due to the Group’s current financial performance and 
recent history of taxable losses in its UK, US and Singapore operations. 
The Group did not recognise deferred tax assets of £60,209,000 (2023: £52,968,000) in respect of tax losses 
amounting to £256,787,000 (2023: £228,197,000) that can be carried forward against future taxable income.  
The Group did not recognise other deferred tax assets of £7,723,000 (2023: £3,816,000) in respect of other carried 
forward temporary timing differences relating to certain US accelerated capital allowances, interest restrictions  
and R&D restrictions and UK notional tax credits associated with the Groups R&D Expenditure Credit Scheme 
(RDEC) claims amounting to £24,148,000 (2023: 8,967,000). 
Tax losses in the UK totalling £173,474,000 (2023: £135,278,000) have no date of expiry. Tax losses in Singapore totalling 
£39,287,000 (2023: £39,713,000) have no date of expiry. Tax losses in the US can be carried forward against future 
142
IQE Annual Report and Accounts 2024

 
taxable income for 20 years before expiring. Of the Group’s total US tax losses of £84,514,000 (2023: £96,858,000) 
losses amounting to £16,090,426 expire within 5 years, £34,592,000 expire within 6-10 years, £11,024,000 expire within 11-
15 years and £22,809,000 may be carried forward indefinitely. 
Deferred tax liabilities have not been recognised for the withholding tax and other taxes that would be payable on 
the unremitted earnings of certain subsidiaries, as such amounts are permanently reinvested. Unremitted 
Taiwanese earnings total £34,365,000 (2023: £32,471,000). Tax credits in relation to claims made under the R&D 
Expenditure Credit Scheme (RDEC) in the UK are recognised within operating loss. Tax credits of this nature total 
£1,528,000 (2023: £1,914,000). 
Company 
Deferred tax assets
Tax Losses 
£’000
Share
Options 
£’000
Other Timing
Differences 
£’000
Total 
£’000
At 1 January 2023
744
72
(816)
–
(Charged)/credited to income statement
777
19
(794)
2
Charged to equity
–
(2)
–
(2)
At 31 December 2023
1,521
89
(1,610)
–
(Charged)/credited to income statement
263
61
(324)
–
Charged to equity
–
–
–
–
At 31 December 2024
1,784
150
(1,934)
–
The Company did not recognise deferred tax assets of £7,568,000 (2023: £6,511,000) in respect of tax losses 
amounting to £30,273,000 (2023: £26,043,000) that can be carried forward against future taxable income. The 
Company did not recognise other deferred tax assets of £39,000 (2023: £39,000) in respect of UK notional tax credits 
associated with R&D Expenditure Credit Scheme (RDEC) claims. 
11. Dividends 
No dividend has been paid or proposed in 2024 (2023: £nil). 
12. Loss per share 
Basic loss per share is calculated by dividing the loss attributable to ordinary shareholders by the weighted average 
number of ordinary shares in issue during the year.  
Diluted loss per share is calculated by dividing the loss attributable to ordinary shareholders by the weighted 
average number of shares and the dilutive effect of ‘in the money’ share options in issue. Share options are classified 
as ‘in the money’ if their exercise price is lower than the average share price for the year. As required by IAS 33, this 
calculation assumes that the proceeds receivable from the exercise of ‘in the money’ options would be used to 
purchase shares in the open market in order to reduce the number of new shares that would need to be issued.  
The Directors also present an adjusted earnings per share measure which eliminates certain adjusted items. The 
Directors believe that the adjusted earnings per share measure provides a useful comparison of performance and 
allows management and other stakeholders to better compare the performance of the Group between the current 
and prior year, excluding the effects of certain non-cash charges, non-operational items and significant infrequent 
items that would distort period on period comparability. The adjustments are detailed in note 5. 
2024 
£’000
2023 
£’000
Loss attributable to ordinary shareholders
(38,178)
(29,378)
Adjustments to loss after tax (note 5) 
14,444
5,388
Adjusted loss attributable to ordinary shareholders
(23,734)
(23,990)
2024 
Number
2023 
Number
Weighted average number of ordinary shares
964,315,248
896,744,318
Dilutive share options
14,291,760
10,155,464
Adjusted weighted average number of ordinary shares
978,607,008
906,899,782
Adjusted basic loss per share
(2.46p)
(2.68p)
Basic loss per share
(3.96p)
(3.28p)
Adjusted diluted loss per share
(2.46p)
(2.68p)
Diluted loss per share
(3.96p)
(3.28p)
Financial Statements
IQE Annual Report and Accounts 2024
143

Notes to the financial statements continued 
for the year ended 31 December 2024 
13. Intangible assets 
Group
Goodwill 
£’000
Patents 
£’000
Development
 costs 
£’000
Software 
£’000
Customer 
contracts 
£’000
Total 
£’000
Cost
At 1 January 2024
68,186
8,318
91,662
16,449
1,490
186,105
Additions
–
163
1,877
1,419
–
3,459
Foreign exchange
1,202
5
941
16
–
2,164
At 31 December 2024
69,388
8,486
94,480
17,884
1,490
191,728
 
 
 
 
 
 
Accumulated amortisation and 
impairment
 
 
 
 
 
 
At 1 January 2024
60,787
7,355
72,599
9,181
805
150,727
Charge for the year
–
290
5,084
331
685
6,390
Impairment
–
59
3,407
306
–
3,772
Foreign exchange
1,018
1
862
8
–
1,889
At 31 December 2024
61,805
7,705
81,952
9,826
1,490
162,778
 
 
 
 
 
 
Net book value
 
 
 
 
 
 
At 31 December 2024
7,583
781
12,528
8,058
–
28,950
At 31 December 2023
7,399
963
19,063
7,268
685
35,378
 
Group
Goodwill 
£’000
Patents 
£’000
Development
 costs 
£’000
Software 
£’000
Customer 
contracts 
£’000
Total 
£’000
Cost
 
 
 
 
 
 
At 1 January 2023
72,128
8,860
92,271
13,882
8,330
195,471
Additions
–
124
2,852
2,643
–
5,619
Acquired through business 
combination
204
–
–
–
1,490
1,694
Disposals
–
(651)
–
–
(8,029)
(8,680)
Foreign exchange
(4,146)
(15)
(3,461)
(76)
(301)
(7,999)
At 31 December 2023
68,186
8,318
91,662
16,449
1,490
186,105
Accumulated amortisation and 
impairment
At 1 January 2023
64,472
7,852
69,303
8,500
8,330
158,457
Charge for the year
–
167
5,996
720
805
7,688
Disposals
–
(651)
–
–
(8,029)
(8,680)
Foreign exchange
(3,685)
(13)
(2,700)
(39)
(301)
(6,738)
At 31 December 2023
60,787
7,355
72,599
9,181
805
150,727
Net book value
At 31 December 2023
7,399
963
19,063
7,268
685
35,378
At 31 December 2022
7,656
1,008
22,968
5,382
–
37,014
Customer contract intangible assets relate to customer contracts acquired as part of business combinations.  
The amortisation charge of £6,390,000 (2023: £7,688,000) has been classified within ‘selling, general and 
administrative expenses’ in the Consolidated Income Statement. Development costs include £4,054,000 
(2023: £2,992,000) and Software costs include £nil (2023: £6,722,000) of assets not subject to amortisation. 
Development cost impairment charges of £3,772,000 incorporate £2,887,000 of charges relating to the impairment 
of Dilute Nitride technology development costs where the Group has taken the decision to discontinue the 
development and commercialisation of the technology given the current lack of visibility over the timeline to 
commercialisation of the technology. The net book value of the assets has been impaired to £nil with the charge 
recognised in ‘Impairment loss on intangible assets’ in the Consolidated Income Statement. The remaining charge 
of £885,000 relates to the impairment of the Group’s US related wireless CGU assets (see note 13). 
 
144
IQE Annual Report and Accounts 2024

 
Impairment tests for goodwill 
Goodwill is tested for impairment annually and whenever there is an indication of impairment at the level of the CGU 
to which it is allocated. Multiple production facilities and production assets are included in a single CGU reflecting 
that production can (and is) transferred between sites and production assets for different operating segments to 
suit capacity planning and operational efficiency. Given the interdependency of facilities and production assets, 
goodwill is tested for impairment by grouping operational sites and production assets into CGUs based on type of 
production. Corporate assets are allocated to CGUs in proportion to the utilisation of production assets and facilities 
by each CGU. 
2024 
Cost 
£’000
2024
Impairment
£’000
2024
Foreign 
exchange
£’000
2024
NBV
£’000
2023 
Cost 
£’000
2023
Acquired on 
business 
combination 
£’000
2023 
Foreign 
exchange 
£’000
2023 
NBV 
£’000
Allocation of goodwill by 
CGU 
Wireless
–
–
–
–
–
–
–
–
Photonics
7,399
–
184
7,583
7,656
204
(461)
7,399
Total Goodwill
7,399
–
184
7,583
7,656
204
(461)
7,399
The recoverable amount of the CGUs has been determined based on value in use calculations, using cash flow 
projections for a five-year period plus a terminal value based upon a long-term growth rate of 2% (2023: 2%) in line 
with The Bank of England’s and the US Federal Reserve’s monetary policy 2% inflation target. 
Value in use calculations are based on the Group’s Board-approved 2025 budget and latest five-year cash flow 
forecasts which have been risk adjusted and adjusted to exclude the impact of expansionary capital expenditure 
and certain linked earnings and cash flows. The Group has continued to experience weak customer demand and 
low customer orders following the global semiconductor industry downturn as market recovery has been slower 
than anticipated in key sectors, driven primarily by weak consumer demand in end markets. Revenue assumptions 
in year 1 reflect modest mid-single digit percentage year-on-year growth. Revenue assumptions for years 2, 3, 4 and 
5 incorporate a combination of market penetration and new business assumptions and business segment growth 
that takes account of industry trends and external market research. 
Within the 2024 value in use calculations, risk adjustments have been factored directly into the 5-year cashflows. In 
2023, this risk adjusted was reflected within the discount rate utilised. The calculation of the recoverable amount of 
each CGU in the value in use calculations is sensitive to small changes in the following key assumptions applied in 
the 2024 cash flow forecast: 
2024
Year 1 
%
Year 2 
%
Year 3 
%
Year 4 
%
Year 5 
%
5 Year 
CAGR 
%
Unadjusted discount rate
16.8%
16.8%
16.8%
16.8%
16.8%
N/A
Photonics revenue growth rate
Adjusted Board -
approved forecast* 
Adjusted Board -
approved forecast*
15.9%
18.7%
10.8%
9.8%
18.7%
Wireless revenue growth rate
22.8%
23.6%
13.7%
7.6%
9.5%
* Adjusted Board approved forecast relates to the Group’s Board approved 2025 budget and latest five year cash flow forecasts adjusted to 
exclude earnings and cash flows associated with expansionary capital expenditure 
2023
Year 1 
%
Year 2 
%
Year 3 
%
Year 4 
%
Year 5 
%
5 Year 
CAGR 
%
Risk adjusted discount rate
18.5%
18.5%
18.5%
18.5%
18.5%
N/A
Photonics growth rate
Adjusted Board 
approved forecast*
Adjusted Board 
approved forecast*
8.6%
17.6%
11.9%
20.2%
Wireless growth rate
Adjusted Board 
approved forecast*
Adjusted Board 
approved forecast*
7.2%
4.8%
4.2%
18.5%
The assumptions and growth rates contained in the Group’s value in use calculations have been updated in 2024. 
The updated cashflow forecasts reflect latest industry trends and external market research and a slower market 
recovery in key sectors following the industry-wide semiconductor downturn compared to the assumptions 
contained in the Group’ prior year value in use calculations. The value in use calculations comprise revenue, material 
costs and site manufacturing labour and overhead cost forecasts that have been assessed and updated by 
reference to a combination of customer and supplier specific information and a combination of market penetration 
and new business assumptions combined with business segment growth rates that take account of industry trends 
and external market research market growth assumptions. 
Financial Statements
IQE Annual Report and Accounts 2024
145

Notes to the financial statements continued 
for the year ended 31 December 2024 
13. Intangible assets continued 
Photonics CGU 
The recoverable amount of the Photonics CGU of £121,751,000, determined based on value in use calculations is 
greater than the carrying amount (£121,196,000) of the associated intangible assets, property, plant and equipment, 
right-of-use assets and working capital allocated to the CGU such that no impairment of Photonics CGU assets has 
been identified. 
The Group has carried out a sensitivity analysis on the impairment test for the Photonics CGU, using various 
reasonably plausible scenarios focused on changes in business segment growth rates and changes in the discount 
rate applied in the value in use calculations. 
• Growth rates in the value in use calculations take account of continuing market demand for compound 
semiconductors and associated technology advancement, driven by macro trends of 5G and connected devices, 
and the increasing proliferation of 3D and advanced sensing end user applications that require enabling 
compound semiconductor material. If the aggregated compound annual revenue growth rate used in the value 
in use calculations to determine the recoverable amount was to decrease by 1% the magnitude of the adverse 
impact on the recoverable amount of Photonics CGU non-current assets would be £8,828,000.  
• If the aggregated compound annual revenue growth rate used in the value in use calculations to determine the 
recoverable amount was to decrease by 0.1%, this would eliminate all the headroom in the value in use calculation. 
• If the discount rate used in the value in use calculations to determine the recoverable amount was to increase by 
0.5%, the magnitude of the adverse impact on the recoverable amount of Photonics CGU non-current assets 
would be £5,112,000. 
• If the discount rate used in the value in use calculations to determine the recoverable amount was to increase by 
0.1%, this would eliminate all the headroom in the value in use calculation. 
 
Wireless CGU 
The recoverable amount of the Wireless CGU of £88,341,000 determined based on value in use calculations is lower 
than the carrying amount (£91,375,000) of the associated intangible assets, property, plant and equipment, right-of-
use assets and working capital allocated to the CGU such that an impairment of Wireless CGU assets has been 
identified. The impairment has arisen as a result of weak customer demand and lower customer orders in the 
wireless sector as market recovery has been slower than anticipated.  
The non-cash impairment loss of £3,066,000 relates to the Group’s US related wireless assets and has been allocated to 
the relevant US based intangible and tangible assets which has resulted in a non-cash intangible asset impairment 
charge of £885,000 and a non-cash property, plant and equipment impairment charge of £2,181,000. 
The Group has carried out a sensitivity analysis on the impairment test for the Wireless CGU, using various 
reasonably plausible scenarios focused on changes in business segment growth rates, direct wafer product 
margins and changes in the discount rate applied in the value in use calculations. 
• Growth rates in the value in use calculations take account of continuing market demand for compound 
semiconductors and associated technology advancement, driven by macro trends of 5G and connected devices 
where 5G network infrastructure and 5G mobile handsets are being enabled by next generation wireless 
compound semiconductor material. If the aggregated compound annual revenue growth rate used in the value 
in use calculations to determine the recoverable amount was to decrease by 1% the impact on the impairment 
charge would be to increase the charge by £6,606,000. 
• If the discount rate used in the value in use calculations to determine the recoverable amount was to increase by 
0.5%, the impact on the impairment charge would be to increase the charge by £3,457,000. 
 
 
146
IQE Annual Report and Accounts 2024

 
Company
Patents 
£’000
Software 
£’000
Total
£’000
Cost
At 1 January 2024
7,839
7,643
15,482
Additions
163
1,419
1,582
At 31 December 2024
8,002
9,062
17,064
Accumulated amortisation
At 1 January 2024
6,993
825
7,818
Charge for the year
265
181
446
Impairment
59
–
59
At 31 December 2024
7,317
1,006
8,323
Net book value
At 31 December 2024
685
8,056
8,741
At 31 December 2023
846
6,818
7,664
Company
Patents 
£’000
Software 
£’000
Total
£’000
Cost 
At 1 January 2023
7,715
5,000
12,715
Additions
124
2,643
2,767
At 31 December 2023
7,839
7,643
15,482
Accumulated amortisation
At 1 January 2023
6,782
618
7,400
Charge for the year
211
207
418
At 31 December 2023
6,993
825
7,818
Net book value
At 31 December 2023
846
6,818
7,664
At 31 December 2022
933
4,382
5,315
 
 
Financial Statements
IQE Annual Report and Accounts 2024
147

Notes to the financial statements continued 
for the year ended 31 December 2024 
14. Property, plant and equipment 
Group
Land and 
buildings 
£’000
Short leasehold 
improvements 
£’000
Fixtures  
and fittings 
£’000
Plant and  
machinery 
£’000
Total 
£’000
Cost 
At 1 January 2024
13,364
37,888
16,681
212,572
280,505
Additions
–
58
73
7,765
7,896
Disposals
–
(4,650)
(1,203)
(31,292)
(37,145)
Transfer to assets held for resale
–
–
–
(939)
(939)
Foreign exchange
(270)
776
(532)
(64)
(90)
At 31 December 2024
13,094
34,072
15,019
188,042
250,227
Accumulated depreciation
At 1 January 2024
5,705
23,388
8,161
113,698
150,952
Charge for the year
707
3,474
933
11,438
16,552
Disposals
–
(4,650)
(1,203)
(29,427)
(35,280)
Impairment
–
916
–
3,699
4,615
Transfer to assets held for resale
–
–
–
(819)
(819)
Foreign exchange
(67)
538
(159)
221
533
At 31 December 2024
6,345
23,666
7,732
98,810
136,553
Net book value
At 31 December 2024
6,749
10,406
7,287
89,232
113,674
At 31 December 2023
7,659
14,500
8,520
98,874
129,553
Property, plant and equipment includes assets in the course of construction with a net carrying value of £7,831,000 
(2023: £28,983,000).  
Group
Land and 
buildings 
£’000
Short leasehold 
improvements 
£’000
Fixtures  
and fittings 
£’000
Plant and 
machinery 
£’000
Total 
£’000
Cost 
At 1 January 2023
18,916
35,550
15,705
210,513
280,684
Additions
–
3,534
1,876
13,812
19,222
Acquired through business combination
–
–
37
3,493
3,530
Transfer to assets held for resale 
(5,086)
–
–
–
(5,086)
Other transfers
–
672
–
(3,355)
(2,683)
Disposals
–
–
(174)
(2,722)
(2,896)
Foreign exchange
(466)
(1,868)
(763)
(9,169)
(12,266)
At 31 December 2023
13,364
37,888
16,681
212,572
280,505
Accumulated depreciation
At 1 January 2023
7,720
21,408
7,712
116,789
153,629
Charge for the year
941
2,997
940
8,308
13,186
Transfer to assets held for resale 
(2,812)
–
–
–
(2,812)
Other transfers
–
–
–
(3,191)
(3,191)
Disposals
–
–
(174)
(2,321)
(2,495)
Foreign exchange
(144)
(1,017)
(317)
(5,887)
(7,365)
At 31 December 2023
5,705
23,388
8,161
113,698
150,952
Net book value
At 31 December 2023
7,659
14,500
8,520
98,874
129,553
At 31 December 2022
11,196
14,142
7,993
93,724
127,055
 
 
148
IQE Annual Report and Accounts 2024

 
Other transfers relate to a reclassification of inventory to tangible fixed assets of £nil (2023: £508,000) and 
reclassifications between cost and accumulated depreciation totalling £nil (2023: £3,191,000) within short leasehold 
improvements and plant and machinery. The reclassifications had no impact on net assets, loss after tax or total 
cash flow for 2023. 
Property, plant and machinery impairment charges of £4,615,000 incorporates £2,434,000 relating to the impairment 
of certain specific redundant plant and machinery assets linked to the restructuring of the Group’s US operations. 
The net book value of the assets has been impaired to £nil with the charge recognised in ‘Impairment loss on 
property, plant and equipment’ in the Consolidated Income Statement. The remaining charge of £2,181,000 relates to 
the impairment of the Group’s US related wireless CGU assets (see note 13). 
 
Company
Fixtures  
and fittings 
£’000
Cost 
At 1 January 2024
190
Additions
1
Disposals
(2)
At 31 December 2024
189
Accumulated depreciation
At 1 January 2024
173
Charge for the year
11
Disposals
–
At 31 December 2024
184
Net book value
At 31 December 2024
5
At 31 December 2023
17
Company
Fixtures 
and fittings 
£’000
Cost 
At 1 January 2023
538
Additions
3
Disposals
(351)
At 31 December 2023
190
Accumulated depreciation
At 1 January 2023
149
Charge for the year
24
Disposal
–
At 31 December 2023
173
Net book value
At 31 December 2023
17
At 31 December 2022
389
 
 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
149

Notes to the financial statements continued 
for the year ended 31 December 2024 
15. Right-of-use assets 
Group
Land and 
buildings 
£’000
Fixtures and 
Fittings 
£’000
Plant and  
machinery 
£’000
Total 
£’000
Cost 
At 1 January 2024
54,978
81
735
55,794
Modifications/remeasurements
7,256
3
493
7,752
Foreign exchange
460
3
10
473
At 31 December 2024
62,694
87
1,238
64,019
Accumulated depreciation
At 1 January 2024
17,188
17
694
17,899
Charge for the year
3,627
18
146
3,791
Impairment
31
–
–
31
Foreign exchange
87
1
–
88
At 31 December 2024
20,933
36
840
21,809
Net book value
At 31 December 2024
41,761
51
398
42,210
At 31 December 2023
37,790
64
41
37,895
 
Group
Land and 
buildings 
£’000
Fixtures and 
Fittings 
£’000
Plant and 
machinery 
£’000
Total 
£’000
Cost 
At 1 January 2023
55,064
26
782
55,872
Additions
798
62
–
860
Disposals
–
(4)
–
(4)
Foreign exchange
(884)
(3)
(47)
(934)
At 31 December 2023
54,978
81
735
55,794
Accumulated depreciation
At 1 January 2023
13,856
12
572
14,440
Charge for the year
3,620
10
160
3,790
Disposals
–
(4)
–
(4)
Foreign exchange
(288)
(1)
(38)
(327)
At 31 December 2023
17,188
17
694
17,899
Net book value
At 31 December 2023
37,790
64
41
37,895
At 31 December 2022
41,208
14
210
41,432
Modifications and remeasurements during the year primarily relate to adjustments in lease payments and lease 
term extensions. The total impact on right-of-use assets was £7,752,000 (2023: £nil) with corresponding changes in 
lease liabilities. 
 
 
150
IQE Annual Report and Accounts 2024

 
16. Investments 
Company
Investments in 
subsidiaries 
£’000
Total 
£’000
Cost
At 1 January 2024
126,006
126,006
Subsidiaries share-based payments charge
2,348
2,348
At 31 December 2024
128,354
128,354
Provisions for impairment
At 1 January 2024
65,837
65,837
Impairment
506
506
Reversal of impairment
(18,597)
(18,597)
At 31 December 2024
47,746
47,746
Net book value
At 31 December 2024
80,608
80,608
At 31 December 2023
60,169
60,169
 
Company
Investments in 
subsidiaries 
£’000
Total 
£’000
Cost
At 1 January 2023
124,458
124,458
Subsidiaries share-based payments charge
1,548
1,548
At 31 December 2023
126,006
126,006
Provisions for impairment
At 1 January 2023
48,210
48,210
Impairment charge
17,627
17,627
At 31 December 2023
65,837
65,837
Net book value
At 31 December 2023
60,169
60,169
At 31 December 2022
76,248
76,248
Details of the Company’s subsidiaries are set out in note 30. 
Investments are reviewed for impairment trigger events annually. This review includes a qualitative assessment of 
the business performance of each investment and a quantitative assessment of any potential impact on the 
carrying value of each investment arising from the results of the Group’s value in use calculations prepared as part 
of the Group’s goodwill impairment review.  
The Group’s value in use calculations prepared as part of the Group’s goodwill impairment review has identified an 
impairment reversal for the Company’s investment in its sub-group headed by Wafer Technology International 
Limited and an impairment trigger event for the Company’s investment in its sub-group headed by EPI Holdings 
Limited. 
A reversal of impairment has been recognised for the Company’s investment in its sub-group, headed by Wafer 
Technology International Limited. The impairment was originally recognised following a decline in forecast future 
profitability of the business, a position that has changed in the current year where improvement in forecasted future 
profitability, assessed by reference to the Group’s 2024 value in use cash flow forecasts has resulted in a £18,597,000 
(2023: £15,239,000 impairment charge) reversal of impairment in the Company’s investment in its Wafer Technology 
sub-group. 
An impairment trigger event was identified for the Company’s investment in its sub-group, headed by EPI Holdings 
Limited, primarily as a result of a forecast decline in future profitability of the subsidiary, IQE (Europe) Limited, linked to 
the Group’s restructuring activity and the decision to commence the consolidation of its South Wales activities into 
its Newport site. The decline in forecast future profitability, assessed by reference to the Group’s 2024 value in use 
cash flow forecasts resulted in an impairment of £506,000 (2023: £2,388,000) of the investment in the EPI Holdings 
sub-group. 
Financial Statements
IQE Annual Report and Accounts 2024
151

Notes to the financial statements continued 
for the year ended 31 December 2024 
17. Inventories 
Group
2024 
£’000
2023 
£’000
Raw materials and consumables
13,228
17,796
Work-in-progress and finished goods
6,781
6,781
20,009
24,577
The Directors are of the opinion that the replacement values of inventories are not materially different to the carrying 
values stated above. The carrying values are stated net of impairment provisions of £11,270,000 (2023: £13,638,000). 
£391,000 (2023: £522,000) of inventories were written down during 2024 and an expense recognised in the income 
statement.  
18. Trade and other receivables 
Current
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Trade receivables
19,567
–
15,421
–
Other receivables
1,420
701
2,894
121
Contract assets
14,061
–
16,349
–
Prepayments
2,376
935
3,556
2,096
37,424
1,636
38,220
2,217
 
Non-current
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Amounts owed by Group undertakings
–
118,032
–
165,422
–
118,032
–
165,422
Contract assets relate to bespoke manufactured customer products where the Group has a guaranteed 
contractual right of payment. Contract assets are transferred to receivables at the point that manufactured 
products are delivered to customers, except for supplier managed inventory arrangements where contract assets 
are transferred to receivables from the earlier of a specified contractual date following delivery or when the product 
is drawn from inventory by the customer. All contract assets from 2023, excluding a balance of £431,000, have been 
transferred to receivables during 2024. 
Other receivables include £1,146,000 (2023: £1,074,000) of tax receivables. 
Amounts owed by Group undertakings are unsecured and repayable on demand but expected to be paid in over 12 
months. Interest is charged at a rate of 5% per annum (2023: 5% per annum). 
The estimated fair values of trade receivables, other receivables, contract assets and amounts owed by Group 
undertakings are set out in note 23.  
19. Assets held for resale 
Current
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Property, plant and equipment held for resale
120
–
2,274
–
120
–
2,274
–
Assets held for resale at 31 December 2024 relate to certain specific plant and machinery where the Group has 
entered into a commitment to sell the plant and machinery as part of the restructuring of its US operations.  
Manufacturing activity at the Group’s Pennsylvania site ceased in 2023 with a committed management plan to sell 
the site and associated freehold property following completion of all site decommissioning activities. The freehold 
property was held as an asset held for resale in 2023 and was sold in 2024 for net proceeds of £4,062,000.  
 
 
152
IQE Annual Report and Accounts 2024

 
20. Trade and other payables 
Current
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Trade payables
8,659
562
15,243
1,306
Amounts owed by Group undertakings
–
28,507
–
24,068
Other taxation and social security
500
1,310
377
70
Other payables
9,249
6,667
11,137
3,195
Accruals and deferred income
15,825
2,991
15,750
8,554
Deferred consideration
172
–
65
–
34,405
40,037
42,572
37,193
Accruals and deferred income include contract liabilities of £2,088,000 (2023: £618,000). Contract liabilities relate to 
advance payments received from customers for services/products expected to be delivered in the next 12 months. 
All contract liabilities from 2023 have been recognised as revenue during 2024. 
Amounts owed to group undertakings are unsecured and repayable on demand. Interest is charged at a rate of 5% 
per annum (2023: 5% per annum). 
Non-Current
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Deferred consideration
2,035
–
2,208
–
2,035
–
2,208
–
Deferred consideration of £2,207,000 (2023: £2,273,000) is payable to Cardiff University in relation to the acquisition of 
CSC in instalments over a period up to 1 January 2029. 
21. Borrowings 
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Non-current borrowings
Bank borrowings
23,460
23,460
3,692
3,692
Lease liabilities
44,872
–
40,435
–
68,332
23,460
44,127
3,692
Current borrowings
Bank borrowings
–
–
4,153
857
Lease liabilities
5,658
–
5,865
–
5,658
–
10,018
857
Total borrowings
73,990
23,460
54,145
4,549
 
Bank Borrowings
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Bank borrowings fall due for repayment as follows
Within one year
–
–
4,153
857
Between one and five years
23,460
23,460
3,692
3,692
23,460
23,460
7,845
4,549
On 17 May 2023, the Company refinanced its £28,000,000 ($35,000,000) multi-currency revolving credit facility, 
provided by HSBC Bank plc. The refinancing has been treated as a debt modification. The facility is secured on the 
assets of IQE plc and its subsidiary companies with a committed term to 1 May 2026. Interest on the facility is 
payable at a margin of between 2.50 and 3.50% per annum over SONIA on any drawn balances and the facility was 
subject to quarterly leverage and Interest cover covenant tests up until 10 March 2025 when the Group negotiated a 
Deed of Amendment and Restatement to the facility which replaced the leverage and interest cover financial 
covenants with minimum adjusted EBITDA and minimum liquidity covenants. 
The Group obtained a formal waiver pre-year end of its 31 December 2024 covenant tests from HSBC Bank plc. The 
Group has complied with all the financial covenants of its borrowing facilities during 2024 and 2023. 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
153

Notes to the financial statements continued 
for the year ended 31 December 2024 
21. Borrowings continued 
Lease liabilities
2024
£’000
2023 
£’000
Lease liabilities fall due for repayment as follows
Within one year
5,658
5,865
Between one and five years
32,054
36,007
After five years
12,818
4,428
50,530
46,300
Lease liabilities are effectively secured as the rights to the leased assets recognised in the financial statements 
revert to the lessor in the event of default. Lease liabilities principally relate to property. 
22. Provisions for other liabilities and charges  
Group
Restructuring
£’000
Onerous 
Contract
£’000
Warranty
 Provision 
£’000
Dilapidation
£’000
2024
Total
£’000
Restructuring 
£’000
Onerous
Contract 
£’000
Warranty
 Provision 
£’000
Other 
£’000
2023
Total 
£’000
As at 1 January
1,650
866
1,153
–
3,669
1,252
1,332
898
150
3,632
Charged to the 
income statement
51
–
223
245
519
1,132
–
467
–
1,599
Utilised during the year
(1,675)
(394)
(830)
–
(2,899)
(735)
(413)
(164)
(150)
(1,462)
Foreign exchange
–
8
2
6
16
1
(53)
(48)
–
(100)
As at 31 December
26
480
548
251
1,305
1,650
866
1,153
–
3,669
 
Group
Restructuring
£’000
Onerous 
Contract
£’000
Warranty
Provision 
£’000
Dilapidation
£’000
2024
Total
£’000
Restructuring 
£’000
Onerous
Contract 
£’000
Warranty
Provision 
£’000
Other 
£’000
2023
Total 
£’000
Current
26
200
548
–
774
1,650
195
1,153
–
2,998
Non-current
–
280
–
251
531
–
671
–
–
671
Total 
26
480
548
251
1,305
1,650
866
1,153
–
3,669
The restructuring provision relates to costs relating to the announced closure of the Group’s manufacturing facility in 
Pennsylvania, USA and the Group’s manufacturing facility in Singapore. 
• The restructuring provision of £26,000 (2023: £1,608,000) associated with the closure of the Group’s manufacturing 
facility in the USA relates to site closure costs that are expected to be utilised over a period up to 31 March 2025.  
• The restructuring provision of £nil (2023: £42,000) associated with the closure of the Group’s manufacturing facility 
in Singapore relates to site closure costs. 
The onerous contract provision represents the cost of minimum guaranteed future royalty payments associated 
with cREO™ technology acquired from Translucent Inc that is no longer being commercialised. The onerous contract 
provision is expected to be utilised over a period up to 28 February 2027.  
The warranty provision relates to the costs of expected returns under warranty that are expected to be utilised over 
a period up to 30 June 2025. 
The dilapidation provision relates to the estimated costs to fulfil property lease obligations upon expiry of the 
relevant property lease contract. 
 
 
154
IQE Annual Report and Accounts 2024

 
Company
Onerous  
Contract 
£’000
2024 
£’000
Onerous  
Contract 
£’000
 
Other 
£’000
2023 
£’000
As at 1 January
866
866
1,332
150
1,482
Charged to the income statement
–
–
–
–
–
Utilised during the year
(394)
(394)
(413)
(150)
(563)
Foreign exchange
8
8
(53)
–
(53)
As at 31 December
480
480
866
–
866
 
Company
2024 
£’000
2023 
£’000
Current
200
195
Non-current
280
671
As at 31 December
480
866
The onerous contract provision represents the cost of minimum guaranteed future royalty payments associated 
with the cREO™ technology acquired from Translucent Inc. The onerous contract provision is expected to be utilised 
over a period up to 28 February 2027.  
23. Financial Instruments  
Financial instruments by category 
Trade and other receivables (excluding prepayments) and cash and cash equivalents are classified as financial 
assets at amortised cost. Borrowings and trade and other payables are classified as financial liabilities at amortised 
cost. Both categories are initially measured at fair value and subsequently held at amortised cost. Financial 
instruments are classified as level 2 per the fair value hierarchy. 
Derivatives (forward exchange contracts) are classified as derivatives used for hedging and accounted for at fair 
value through profit and loss in the consolidated statement of comprehensive income. 
Financial risk and treasury policies 
The Group’s finance team maintains liquidity, manages relations with the Group’s bankers, identifies and manages 
foreign exchange risk and provides a treasury service to the Group’s businesses. Treasury dealings such as 
investments, borrowings and foreign exchange are conducted only to support underlying business transactions. The 
Group has clearly defined policies for the management of foreign exchange rate risk. The Group finance team does 
not undertake speculative foreign exchange dealings for which there is no underlying exposure. Exposures resulting 
from sales and purchases in foreign currency are matched where possible and the net exposure may be hedged 
by the use of forward exchange contracts. 
Credit risk 
Credit risk is the risk of financial loss to the Group if a customer or counterparty to a financial instrument fails to meet 
its contractual obligations and arises principally from the Group’s receivables and contract assets due from 
customers, and monies on deposit with financial institutions.  
Customer credit risk is managed at the Group and site level with credit risk assessments completed for all 
customers. If no independent credit rating is available, the credit quality of the customer is assessed by reference to 
the customers’ financial position, past experience and other relevant factors. Individual credit limits are set based on 
internal or external ratings in accordance with the Group’s credit risk policies. Where the Group assesses a potential 
credit risk, this is dealt with either by up-front payment prior to the shipment of goods or by other credit risk 
mitigation measures.  
Counterparty risk associated with monies on deposit with financial institutions is managed at the Group level in 
accordance with the Group’s treasury policies. The credit quality of banks has been assessed by reference to 
external credit ratings, based on reputable credit agencies’ long-term issuer ratings. 
Trade receivables and contract assets 
The credit quality of trade receivables and contract assets that are not impaired have been assessed based on 
historical information about the counterparty default rate.  
 
 
Financial Statements
IQE Annual Report and Accounts 2024
155

Notes to the financial statements continued 
for the year ended 31 December 2024 
23. Financial Instruments continued 
Cash at bank 
The credit quality of cash has been assessed by reference to external credit ratings based on reputable credit 
agencies’ long-term issuer ratings. The Group has cash at bank balances totalling £4,660,000 (2023: £5,617,000) all 
held with banks with A1 credit ratings. 
The maximum exposure to credit risk at the reporting date is the carrying value of each class of financial asset as 
set out below. In terms of trade receivables, the terms of sale provide that the Group has recourse to the products 
sold in the event of non-payment by a customer. 
Assets as per balance sheet
2024 
Group 
£’000
2024
Company 
£’000
2023 
Group 
£’000
2023
Company 
£’000
Carrying amount 
Cash and cash equivalents
4,660
306
5,617
–
Trade receivables
19,567
–
15,421
–
Amounts owed by Group undertakings
–
118,032
–
165,422
Other receivables excluding prepayments 
15,481
701
19,243
121
39,708
119,039
40,281
165,543
Included in other receivables are contract assets of £14,061,000 (2023: £16,396,000). 
The Group is exposed to credit concentration risk with its two (2023: two) largest customers which represent 32% 
(2023: 32%) of outstanding trade receivables and contract asset balances. Customer credit risk is managed 
according to strict credit control policies. The majority of the Group’s revenues are derived from large multinational 
organisations that are established customers of the Group with no prior history of default. Events of default have 
been limited and when incurred principally relate to smaller independent customers. The Group monitors customer 
credit ratings and has experienced low levels of defaults in the past.  
Group
Gross 
2024 
£’000
Provision 
2024 
£’000
Net
2024 
£’000
Gross 
2023 
£’000
Provision 
2023 
£’000
Net
2023 
£’000
Not past due
16,217
–
16,217
11,319
–
11,319
Past due 0-30
3,220
–
3,220
3,202
–
3,202
Past due more than 30
225
(95)
130
2,065
(800)
1,265
19,662
(95)
19,567
16,586
(800)
15,786
 
Allowance for bad and doubtful debt
2024 
£’000
2023 
£’000
At 1 January
800
2,713
(Credited)/charged to the income statement
3
(1,808)
Utilised during the year
(709)
–
Foreign exchange
1
(105)
As at 31 December
95
800
As at 31 December 2024, 82% (2023: 68%) of trade receivables were within terms. Of the other trade receivables, 93% 
(2023: 61%) were less than 30 days past due. An allowance has been made for estimated irrecoverable amounts 
from the sale of goods of £95,000 (2023: £800,000). This allowance has been determined on an expected credit loss 
basis by reference to past default experience.  
The carrying values of trade and other receivables also represent their estimated fair values. Trade receivables and 
contract assets are primarily denominated in US dollars, as are trade payables limiting the exposure of the Group to 
movements in foreign exchange rates. Based on the balances held at 31 December 2024, a one cent movement in 
the US dollar to Sterling rate would impact the net value of these instruments by £193,000 (2023: £115,000).  
 
 
156
IQE Annual Report and Accounts 2024

 
Liquidity risk 
Liquidity risk is the risk that the Group will not be able to meet its financial obligations as they fall due. The Group 
manages its funding to ensure, as far as possible, that it will always have sufficient liquidity to meet its liabilities when 
due, under both normal and stressed conditions, without incurring unacceptable losses or risking damage to the 
Group’s reputation. 
The Group uses cash flow forecasts to monitor cash requirements and to optimise its borrowing position. The Group 
ensures that it has sufficient borrowing facilities to meet foreseeable operational expenses. At the year end the 
Group had available undrawn facilities of £4,400,000 (2023: £28,363,000). 
The following table illustrates the contractual maturities of financial liabilities, including interest payments where 
applicable, and excluding the impact of netting agreements on an undiscounted basis. 
Contractual cash flow maturities –  
Other financial liabilities at amortised cost 
31 December 2024
Group 
Carrying 
amount 
£’000 
Group 
Contractual 
Cash flows 
£’000
Group 
Less than  
12 months 
£’000
Group 
1 –2 Years 
£’000 
Group 
2–5 Years 
£’000
Group 
5+ Years 
£’000
Trade and other payables
19,943
20,460
18,086
505
1,869
–
Accruals
13,737
13,737
13,737
–
–
–
Bank borrowings
23,460
23,600
–
23,600
–
–
Lease liabilities
50,530
67,452
7,550
6,538
32,147
21,217
107,670
125,249
39,373
30,643
34,016
21,217
 
Contractual cash flow maturities –  
Other financial liabilities at amortised cost 
31 December 2023
Group 
Carrying 
amount 
£’000 
Group 
Contractual 
Cash flows 
£’000
Group 
Less than 
12 months 
£’000
Group 
1 –2 Years 
£’000 
Group 
2–5 Years 
£’000
Group 
5+ Years 
£’000
Trade and other payables
28,653
29,294
26,570
350
1,813
561
Accruals
15,750
15,750
15,750
–
–
–
Bank borrowings
7,845
8,214
4,277
–
3,937
–
Lease liabilities
46,300
50,882
6,115
5,998
34,728
4,041
98,548
104,140
52,712
6,348
40,478
4,602
 
Contractual cash flow maturities –  
Other financial liabilities at amortised cost 
31 December 2024
Company 
Carrying 
amount 
£’000 
Company 
Contractual 
Cash flows 
£’000
Company 
Less than  
12 months 
£’000
Company 
1 –2 Years 
£’000 
Company 
2–5 Years 
£’000
Company 
5+ Years 
£’000
Trade and other payables
7,229
7,229
7,229
–
–
–
Amounts owed to Group undertakings
28,507
28,507
28,507
–
–
–
Bank borrowings
23,460
23,600
–
23,600
–
–
Accruals
2,991
2,991
2,991
–
–
–
62,187
62,327
38,727
23,600
–
–
 
Contractual cash flow maturities –  
Other financial liabilities at amortised cost 
31 December 2023
Company 
Carrying 
amount 
£’000 
Company 
Contractual 
Cash flows 
£’000
Company 
Less than 
12 months 
£’000
Company 
1 –2 Years 
£’000 
Company 
2–5 Years 
£’000
Company 
5+ Years 
£’000
Trade and other payables
4,501
4,501
4,501
–
–
–
Amounts owed to Group undertakings
24,068
24,068
24,068
–
–
–
Bank borrowings
3,692
3,937
–
3,937
–
–
Accruals
8,554
8,554
8,554
–
–
–
40,815
41,060
37,123
3,937
–
–
 
 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
157

Notes to the financial statements continued 
for the year ended 31 December 2024 
23. Financial Instruments continued 
Financial risk management 
Market risk – Foreign Exchange Risk 
The Group operates internationally with operations in the United Kingdom, United States of America and Taiwan, and 
is exposed to foreign exchange risk arising from various currency exposures, primarily relating to fluctuations in 
exchange rates between UK sterling, US dollars and Taiwanese dollars. The Group’s presentational currency is 
sterling and foreign exchange risk arises from a combination of future commercial transactions, recognised assets 
and liabilities denominated in a currency that is not the functional currency of the relevant group entity and net 
investments in the Group’s foreign operations. 
The majority of the Group’s sales are denominated in US dollars and therefore the Group’s cash flows are affected 
by fluctuations in the rate of exchange between US dollar and UK Sterling and Taiwanese dollar exchange rates 
given that the Group is required to fund certain costs at its operations in the United Kingdom and Taiwan in local 
currencies. Foreign exchange risk of this nature is managed using a combination of the natural currency hedge 
within the Group’s operating model given that a significant proportion of the Group’s costs, including the purchase 
of certain key raw materials, are denominated in US dollars, and via the use of derivative foreign currency forward 
exchange contracts.  
Derivative foreign currency forward exchange contracts are only used for economic hedging purposes and not as 
speculative investments. Derivative foreign currency forward exchange contracts that do not meet the hedge 
accounting criteria are classified as ‘held for trading’ for accounting purposes and are accounted for at fair value 
through profit or loss. These derivative instruments are presented as current assets or liabilities to the extent they 
are expected to be settled within 12 months after the end of the reporting period. As at 31 December 2024, the fair 
value of foreign currency forward exchange contracts held for trading was £nil (2023: £nil). The foreign currency 
forward exchange contracts are classified as Level 2 financial instruments. The fair value of Level 2 financial 
instruments has been determined using observable market data based on quoted market prices or market quotes 
for similar instruments. If all significant inputs required to fair value the instrument are observable, the instrument is 
included in level 2. The Group’s accounting policy for its cash flow hedges is set out in note 2.18. 
The Group has certain investments in foreign operations in North America and Taiwan, whose net assets are 
exposed to foreign currency translation risk. Translation exposures that arise on converting the results of overseas 
subsidiaries are not hedged fully. As a guide to the sensitivity of the Group’s results to movements in foreign currency 
exchange rates, a one cent movement in the US dollar to Sterling rate would impact annual earnings by 
approximately £69,000 (2023: £161,000). 
Cash flow and fair value interest rate risk 
The Board is aware of the risks associated with changes in interest rates and does not speculate on future changes 
in interest rates. Historically, the Group has not undertaken any hedging activity in this area, although the Board 
keeps this under regular review. 
The Group’s interest rate risk arises from its cash and cash equivalents and from its bank borrowings. Cash and cash 
equivalents, including foreign currency cash deposits, earn interest at prevailing variable market rates of interest. 
The Group’s bank borrowings consist of a variable rate multi-currency revolving credit facility secured against the 
assets of the Group. 
The variable rate US dollar $35,000,000 (£28,000,000) multi-currency revolving credit facility, which is £23,600,000 
($29,500,000) (2023: £3,937,000 ($5,047,000)) utilised at 31 December 2024, has a committed term to 1 May 2026. 
Interest on the facility is payable at a margin of between 2.50 and 3.50% per annum over SONIA.  
The Group’s policy is to regularly review its exposure to interest rate risk, and in particular the mix between fixed and 
floating rate financial assets and financial liabilities. The percentage of financial assets and financial liabilities 
bearing variable rate interest was 0% (2023: 0%) and 53% (2023: 21%) respectively.  
As a guide to the sensitivity of the Group’s results to movements in interest rates, a 50-basis point (0.5%) movement 
in interest rates on the interest-bearing financial assets held at 31 December 2024, would impact annual interest 
income by approximately £nil (2023: £nil). A 50-basis point (0.5%) movement in interest rates on the interest-bearing 
liabilities held at 31 December 2024 would impact annual interest costs by approximately £117,000 (2023: £39,000).  
 
 
158
IQE Annual Report and Accounts 2024

 
Capital risk management 
The Group’s main objectives when managing capital are to safeguard the Group’s ability to continue as a going 
concern in order to provide returns for shareholders and benefits for other stakeholders and to maintain an optimal 
capital structure to reduce the cost of capital. 
The Group sets the amount of capital in proportion to risk. The Group manages the capital structure and adjusts it in 
the light of changes in economic conditions and the characteristic of the underlying assets. The Group monitors 
capital by reviewing net debt against shareholders’ funds. The position of these indicators and the movement 
during the year is shown in the Five-Year Financial Summary. 
The Group defines total capital as equity in the consolidated balance sheet plus net debt or less net funds. Total 
capital at 31 December 2024 was £203,440,000 (2023: £218,313,000). The Group monitors capital on the basis of a 
gearing ratio. The gearing ratio is calculated as net debt divided by total capital and at 31 December 2024 was 34.1% 
(2023: 22.2%).  
The Group obtained formal waiver pre-year end from HSBC Bank plc of its 31 December 2024 covenant tests. All 
covenants in relation to the Group’s borrowing facilities have been complied with during the year. 
Fair values 
Fair values of financial assets and liabilities, together with the carrying amounts shown in the balance sheet, are as 
follows: 
Group
2024 
Carrying 
amount 
£’000
2024
Fair  
value 
£’000
2023  
Carrying 
amount 
£’000
2023
Fair 
value 
£’000
Cash and cash equivalents
4,660
4,660
5,617
5,617
Trade receivables
19,567
19,567
15,421
15,421
Other receivables 
1,420
1,420
2,894
2,894
Contract assets
14,061
14,061
16,349
16,349
Trade and other payables
(19,943)
(19,943)
(28,653)
(28,653)
Bank borrowings
(23,460)
(23,460)
(7,845)
(7,845)
(3,695)
(3,695)
3,783
3,783
 
Company
2024  
Carrying 
amount 
£’000
2024
Fair  
value 
£’000
2023  
Carrying 
amount 
£’000
2023
Fair 
value 
£’000
Cash and cash equivalents
306
306
–
–
Amounts owed by Group undertakings
118,032
118,032
165,422
165,422
Other receivables 
701
701
121
121
Amounts owed to Group undertakings
(28,507)
(28,507)
(24,068)
(24,068)
Trade and other payables
(7,229)
(7,229)
(4,501)
(4,501)
83,303
83,303
136,974
136,974
 
 
Financial Statements
IQE Annual Report and Accounts 2024
159

Notes to the financial statements continued 
for the year ended 31 December 2024 
23. Financial Instruments continued 
Basis for determining fair value 
The following summarises the significant methods and assumptions used in estimating the fair values of financial 
instruments reflected in the prior table: 
Cash and cash equivalents 
Cash and cash equivalents earn interest at prevailing variable market rates of interest such that the carrying value 
of cash and cash equivalents is deemed to reflect fair value. 
Trade receivables, other receivables and contract assets 
Trade receivables, other receivables and contract assets are short-term assets with a remaining life of less than one 
year such that the amortised cost carrying value of the assets is deemed to reflect fair value. 
Amounts owed by Group undertakings 
Amounts owed by group undertakings are long-term assets with a remaining life of greater than one year with 
outstanding balances accruing interest at a rate of 5% per annum such that the amortised cost carrying value of 
the assets is deemed to reflect fair value. 
Trade and other payables 
Trade and other payables are short-term liabilities with a remaining life of less than one year such that the 
amortised cost carrying value of the liabilities is deemed to reflect fair value. 
Bank borrowings 
The carrying value of bank borrowings is deemed to reflect fair value as interest payable on bank borrowings is 
charged at a variable rate assessed as close to current market rates. 
Derivative financial instruments 
The fair value of derivative foreign currency forward exchange contracts was determined using observable market 
data based on quoted market prices or market quotes for similar instruments. 
 
 
160
IQE Annual Report and Accounts 2024

 
24. Share capital 
Group and Company
2024 
Number  
of shares
2024 
£’000
2023 
Number  
of shares
2023 
£’000
Allotted, called up and fully paid
Ordinary shares of 1p each
967,251,117
9,672
961,518,692
9,615
The movement in the number of ordinary shares during the year was: 
2024 
Number
2023 
Number
At 1 January
961,518,692
804,841,965
Employee share schemes
5,732,425
1,183,997
Placing
–
150,000,000
Retail offer
–
5,492,730
At 31 December
967,251,117
961,518,692
5,732,425 ordinary shares (2023: 156,676,727 ordinary shares) were issued during the year as follows: 
2024 
Number  
of shares
2024 
Consideration
2023 
Number  
of shares
2023 
Consideration
Employee share schemes
5,732,425
1.0p-23.0p
1,183,997
1.0p-23.0p
Placing
–
–
150,000,000
20.0p
Retail offer
–
–
5,492,730
20.0p
5,732,425
156,676,727
The share premium arising from consideration received from employee share scheme exercises was £128,000 (2023: 
£129,000).  
On 17 May 2023, IQE plc raised funds by way of a Placing and a Retail Offer to all existing shareholders. In each case 
these were offered at an issue price of 20 pence per share (the ‘Issue Price’). The Placing utilised a cashbox structure 
and therefore the premium on the ordinary shares and associated costs, in accordance with Section 612 of the 
Companies Act 2006, were initially recognised within the merger reserve (incorporated within ‘Other reserves’). The 
investment in the newly incorporated subsidiary utilised within the cashbox structure was dissolved in the prior 
period and the merger reserve was subsequently transferred into retained earnings as it was determined to be 
distributable in accordance with the Companies Act 2006. The Placing and Retail Offer raised net funds of 
£29,708,000 from the issue of 155,492,730 ordinary shares. 
25. Share-based payments 
The total amount charged to the income statement in 2024 in respect of share-based payments was £3,174,000 
(2023: £2,565,000). 
Long-term incentive plan 
The IQE Plc Share Option Scheme was adopted on 26 May 2000 and amended by shareholders at the Annual 
General Meeting on 17 May 2002. Under the scheme, the Remuneration Committee can grant long-term incentive 
awards over shares in the Company to Directors and employees of the Group. 
Long-term incentive share awards are granted with contractual lives of between three and ten years with a fixed 
exercise price of one penny, equal to the nominal value of the ordinary share.  
Directors 
Long-term incentive awards become exercisable between three and ten years from the date of grant subject to 
continued employment and achievement of performance conditions relating to growth in earnings per share and 
total shareholder return targets over a three-year vesting period that cannot be extended. The Group has no legal 
or constructive obligation to repurchase or settle the options in cash. 
Details of the Directors’ long-term incentive plan are set out in the Remuneration Report. 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
161

Notes to the financial statements continued 
for the year ended 31 December 2024 
25. Share-based payments continued 
Employees 
Long-term incentive awards become exercisable between one and ten years from the date of grant, subject to 
continued employment.  
The Group has no legal or constructive obligation to repurchase or settle the options in cash. 
Long-term incentive awards are valued using either the Black-Scholes option-pricing model or the Monte Carlo 
simulation model with the total fair value of the award that is to be expensed charged to the income statement over 
the vesting period of the long-term incentive award.  
Share option scheme 
The IQE Plc Share Option Scheme was adopted on 26 May 2000 and amended by shareholders at the Annual 
General Meeting on 17 May 2002. Under the scheme, the Remuneration Committee can grant options over shares in 
the Company to employees of the Group.  
Options are granted with a contractual life of ten years and with a fixed exercise price equal to either the market 
value of the shares under option at the date of grant or 1p. Options become exercisable between one and ten years 
from the date of grant, subject to continued employment and for awards prior to 2022 the achievement of 
performance conditions, including growth in adjusted EBITDA and earnings per share against various targets. The 
Group has no legal or constructive obligation to repurchase or settle the options in cash. 
Share options are valued using the Black-Scholes option-pricing model with the total fair value of the award that is 
to be expensed charged to the income statement over the vesting period of the share option.  
The principal assumptions used in the calculation of the fair value of long-term incentive awards and share option 
awards are as follows: 
Principal assumptions
2024
2023
Weighted average share price at grant date
27.34
31.85
Weighted average exercise price
1.76
2.33
Weighted average vesting period (years)
2
2
Option life (years)
10
10
Weighted average expected life (years)
2
2
Weighted average expected volatility factor
66
68
Weighted average risk-free rate
3.8%
3.2%
Dividend yield
0%
0%
The expected volatility factor is based on historical share price volatility over the three years immediately preceding 
the grant of the option. The expected life is the average expected period to exercise. The risk-free rate of return is the 
yield of zero-coupon UK government bonds of a term consistent with the assumed option life.  
Non-market performance conditions are incorporated into the calculation of fair value by estimating the proportion 
of share options that will vest and be exercised based on a combination of historical trends and future expected 
trading performance. These are reassessed at the end of each period for each tranche of unvested options. 
The fair value of long-term incentive awards and share options granted during the year ended 31 December 2024 
was £3,280,000 (2023: £3,821,000).  
The weighted average fair value of long-term incentive awards granted during the year ended 31 December 2024 
was 23.3p (2023: 17.1p). 
The weighted average contractual life of outstanding share options at the year end was 6 (2023: 6) years. 
 
 
162
IQE Annual Report and Accounts 2024

 
The movements on long-term incentive awards and share options during the year were as follows: 
 2024 
Number 
of options
2024
Average  
exercise price 
(pence)
 2023 
Number 
of options
2023
Average  
exercise price 
(pence)
At 1 January
38,669,816
2.33
28,970,530
4.41p
Granted
19,377,226
1.00
22,427,892
1.00p
Exercised
(5,697,425)
3.17
(1,183,997)
11.88p
Cancelled/lapsed
(21,762,832)
1.74
(11,544,609)
3.97p
At 31 December
30,586,785
1.76
38,669,816
2.33p
The weighted average share price at the date share options were exercised was 30.0p (2023: 31.0p). 
As at 31 December 2024, the total number of long-term incentive awards and share options held by employees was 
30,586,785 (2023: 38,669,816) as follows: 
Option price pence/share
Option period ending
2024 
Number of 
options
2023 
Number of 
options
1.00p – 23.83p
31 December 2024
–
2,247,373
18.42p – 25.17p
31 December 2025
2,153,699
2,798,180
1.00p – 37.92p
31 December 2026
3,601,679
7,493,226
1.00p – 169.50p
31 December 2027
3,657,112
300,000
1.00p – 143.30p
31 December 2028
25,000
45,000
1.00p – 125.00p
31 December 2029
2,500
2,500
1.00p
31 December 2030
–
–
1.00p
31 December 2031
–
2,487,464
1.00p
31 December 2032
3,867,625
8,984,712
1.00p
31 December 2033
9,171,765
14,311,361
1.00p
31 December 2034
8,107,405
–
At 31 December
30,586,785
38,669,816
26. Parent company profit and loss  
As permitted by Section 408 of the Companies Act 2006, the income statement of the parent company is not 
presented as part of these financial statements. The parent company’s loss for the financial year amounted to 
£50,892,000 (2023: £11,762,000 loss). 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
163

Notes to the financial statements continued 
for the year ended 31 December 2024 
27. Cash generated from operations 
Group
2024 
£’000
2023 
£’000
Loss before tax 
(36,905)
(28,811)
Finance costs
3,947
3,032
Depreciation of property, plant and equipment 
16,552
13,186
Depreciation of right-of-use assets
3,791
3,790
Amortisation of intangible assets
6,390
7,688
Impairment of intangible assets
3,772
–
Impairment of property, plant and equipment
4,615
–
Impairment of right-of-use assets
31
–
Gain on remeasurement of right-of-use assets
(202)
–
Inventory write downs (note 17)
391
522
Non-cash movement on trade receivable expected credit losses (note 23) 
3
(1,808)
Non-cash provision movements
288
1,599
Gain on deemed disposal of JV
–
(2,419)
Profit on disposal of fixed assets
(797)
(152)
Share-based payments
3,174
2,565
Cash inflow/(outflow) from operations before changes in working capital
5,050
(808)
Decrease in inventories
3,677
7,503
(Increase) /decrease in trade and other receivables
(608)
6,601
Decrease in trade and other payables
(3,938)
(1,760)
Decrease in provisions
(2,899)
(1,462)
Cash inflow from operations
1,282
10,074
 
Company
2024 
£’000
2023 
£’000
Loss before tax 
(50,892)
(11,764)
Finance income
(7,976)
(6,649)
Finance costs
2,026
1,222
Foreign exchange
427
(813)
Depreciation of property, plant and equipment
11
24
Amortisation of intangible assets
446
418
Impairment of intangible assets
59
–
Impairment of investments
506
17,627
Reversal of impairment in investments
(18,597)
–
Non-cash movement on trade receivable expected credit losses
64,476
(6,814)
Share-based payments
832
963
Cash outflow from operations before changes in working capital
(8,682)
(5,786)
Increase in trade and other receivables
(9,300)
(19,199)
Increase in trade and other payables
1,527
7,532
Cash outflow from operations
(16,455)
(17,453)
 
 
 
164
IQE Annual Report and Accounts 2024

 
28. Reconciliation of net cash flow to movement in net debt 
2024 
£’000
2023 
£’000
Decrease in cash in the year
(910)
(5,409)
Increase in borrowings
(19,493)
(9,932)
Repayment of borrowings
4,048
28,363
Repayment of leases
3,470
4,787
Net movement resulting from cash flows
(12,885)
17,809
Net debt at 1 January
(48,528)
(66,498)
Net movement resulting from cash flows
(12,885)
17,809
Net movement on fair value of derivative instruments
–
381
Other non-cash movements
(7,917)
(220)
Net debt at 31 December
(69,330)
(48,528)
Other non-cash movements include £7,295,000 of lease modifications (2023: £860,000 lease additions) and the 
impact of foreign exchange of £622,000 (2023: £639,000). 
29. Analysis of net debt 
At 1  
January 
2024 
£’000
Cash 
flow 
£’000
Other 
non-cash 
movements 
£’000
At 31 
December 
2024 
£’000
Bank borrowings due after one year
(3,692)
(19,493)
(275)
(23,460)
Bank borrowings due within one year
(4,153)
4,048
105
–
Lease liabilities due after one year
(40,435)
–
(4,437)
(44,872)
Lease liabilities due within one year
(5,865)
3,470
(3,263)
(5,658)
Total borrowings
(54,145)
(11,975)
(7,870)
(73,990)
Cash and cash equivalents
5,617
(910)
(47)
4,660
Net debt
(48,528)
(12,885)
(7,917)
(69,330)
Cash and cash equivalents at 31 December 2024 and 31 December 2023 comprised balances held in instant access 
bank accounts and other short-term deposits with a maturity of less than 3 months. 
Other non-cash movements include £7,295,000 of lease modifications (2023: £860,000 lease additions) and the 
impact of foreign exchange of £622,000 (2023: £639,000). 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
165

Notes to the financial statements continued 
for the year ended 31 December 2024 
30. Subsidiary undertakings 
Name of company
Class of capital
Proportion of 
shares held
Activity
Country of 
incorporation
Registered Office
IQE (Europe) Limited 
Ordinary shares 
of £1 
100%*
Manufacture of 
advanced 
semiconductor 
materials
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK 
IQE Inc 
Common stock 
of $0.001 
100%*
Manufacture of 
advanced 
semiconductor 
materials
USA
119 Technology 
Drive, Bethlehem, 
PA 18015, USA 
IQE KC LLC
Limited liability 
company 
100%*
Manufacture of 
advanced 
semiconductor 
materials
USA
200 John Hancock 
Road, Taunton, MA 
02780, USA 
IQE Taiwan ROC
Ordinary shares 
of NT$10 
100%
Manufacture of 
advanced 
semiconductor 
materials 
Taiwan
No. 2-1, Li-Hsin 
Road 
Hsinchu Science 
Park 
Hsinchu 300, 
Taiwan
IQE RF LLC 
Limited liability 
company 
100%*
Manufacture of 
advanced 
semiconductor 
materials
USA
265 Davidson 
Avenue Somerset, 
NJ 08873, USA 
IQE Silicon 
Compounds Limited 
Ordinary shares 
of £1 
100%
Manufacture of silicon 
epitaxy 
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK
MBE Technology Pte 
Ltd  
Preferred shares 
of S$1  
Ordinary shares 
of S$1
100% 
Manufacture of 
advanced 
semiconductor 
materials
Singapore
30 Tampines 
industrial Avenue 3 
Singapore 528775 
CSDC Private 
Limited 
Common stock 
of $1 par value 
100%*
Research, development 
and manufacture of 
semiconductor 
materials
Singapore
30 Tampines 
industrial Avenue 3 
Singapore 528775 
Wafer Technology 
Limited 
Ordinary shares 
of £1 
100%*
Manufacture of 
semiconductor 
compounds and ultra-
high purity materials
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK 
NanoGaN Limited
Ordinary shares 
of £0.001 
100%
Development of 
advanced 
semiconductor 
materials
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK 
Galaxy Compound 
Semiconductors Inc 
Common stock 
of $0.00 par 
value 
100%*
Manufacture of 
semiconductor 
compounds and ultra-
high purity materials 
USA
9922 E 
Montgomery 
Avenue, #7, 
Spokane, WA 
99206, USA
EPI Holdings Limited
Ordinary shares 
of £1 
100%
Dormant holding 
company 
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK
KTC Wireless LLC
Limited liability 
company 
100%
Dormant holding 
company 
USA
119 Technology 
Drive, Bethlehem, 
PA 18015, USA
IQE USA Inc
Limited liability 
company 
100%
Dormant holding 
company 
USA
119 Technology 
Drive, Bethlehem, 
PA 18015, USA
 
 
 
166
IQE Annual Report and Accounts 2024

 
30. Subsidiary undertakings continued 
IQE Solar LLC
Limited liability 
company 
100%*
Dormant company
USA
119 Technology 
Drive, Bethlehem, 
PA 18015, USA
IQE Properties Inc
Limited liability 
company 
100%*
Property holding 
company 
USA
119 Technology 
Drive, Bethlehem, 
PA 18015, USA
Wafer Technology 
International Limited 
Ordinary shares 
of £1 
100%
Holding company
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK
Compound 
Semiconductor 
Centre Limited 
Preferred A and 
B shares of £1 
Ordinary shares 
of £1 
100%*
Research, development 
and manufacture of 
semiconductor 
materials
UK
Pascal Close, St 
Mellons, Cardiff 
CF3 0LW, UK 
*  Indirect holdings 
The proportion of voting rights of subsidiaries held by the Group is the same as the proportion of shares held. All UK 
subsidiaries are exempt from the requirements to file audited financial statements by virtue of Section 479A of the 
Companies Act 2006. In adopting the exemption, IQE plc has provided a statutory guarantee to these subsidiaries in 
accordance with Section 479C of the Companies Act 2006. 
 
 
 
 
Financial Statements
IQE Annual Report and Accounts 2024
167

Notes to the financial statements continued 
for the year ended 31 December 2024 
31. Related party transactions  
Company 
Transactions with Group Companies  
2024
Income 
£’000
Expense 
£’000
Trade 
Receivable 
£’000
Trade 
Payable 
£’000
Loan
Receivable 
£’000
Loan
 Payable 
£’000
IQE (Europe) Limited
827
(158)
310
–
316
–
IQE Silicon Compounds Limited
7,862
–
480
–
2,058
–
NanoGaN Limited
–
–
–
–
–
(1,750)
Wafer Technology International Limited
–
–
–
–
–
–
Wafer Technology Limited
178
(11)
141
(3)
–
(4,163)
IQE USA Inc
–
–
–
–
9,932
–
IQE Inc
741
(78)
489
(6)
130,429
–
IQE KC LLC
4,573
(1)
597
–
–
(17,223)
IQE RF LLC
–
–
–
–
562
–
KTC Wireless LLC
–
–
–
–
–
(20,262)
Galaxy Compound Semiconductors Inc
90
–
54
–
–
(10,232)
IQE Taiwan ROC
21
–
–
–
–
–
Compound Semiconductor 
Centre Limited
108
–
120
–
–
(2,322)
As at 31 December 2023, IQE plc had a fully impaired loan receivable of £7,794,000 due from MBE Technology Pte 
Limited and £7,714,000 due from CSDC Private Limited. During 2024, the Company entered Deeds of Termination with 
MBE Technology Pte Ltd and CSDC Private Limited and irrevocably waived the loans.  
IQE plc has recognised an expected credit loss within the year of £64,476,000 (2023: reversal £6,814,000) in respect of 
loan receivables from Group companies. As at the year end, IQE plc has recognised a total expected credit loss of 
£78,270,000 (2023: £13,794,000). 
2023
Income 
£’000
Expense 
£’000
Trade 
Receivable 
£’000
Trade 
Payable 
£’000
Loan
Receivable 
£’000
Loan
 Payable 
£’000
IQE (Europe) Limited
842
(145)
598
(194)
7,036
–
IQE Silicon Compounds Limited
1,548
–
4,429
(102)
41,206
–
NanoGaN Limited
–
–
–
–
–
(1,750)
Wafer Technology 
International Limited
–
–
–
–
–
–
Wafer Technology Limited
244
(20)
190
–
–
(2,874)
IQE USA Inc
–
–
–
–
9,447
–
IQE Inc
874
(12)
620
(45)
108,471
–
IQE KC LLC
4,084
(3)
4,546
(1)
–
(10,055)
IQE RF LLC
–
–
–
–
64
–
KTC Wireless LLC
–
–
–
–
–
(19,100)
Galaxy Compound 
Semiconductors Inc
86
–
68
–
–
(8,598)
IQE Taiwan ROC
50
–
331
–
–
–
MBE Technology Pte Limited
1
–
–
–
–
–
CSDC Private Limited
–
–
–
–
–
–
Compound Semiconductor 
Centre Limited
8
–
6
–
251
–
 
 
 
 
 
 
168
IQE Annual Report and Accounts 2024

 
32. Commitments 
The Group had capital commitments at 31 December 2024 of £162,000 (2023: £553,000). 
33. Post balance sheet events 
On 10 March 2025, resolutions were passed by shareholders to issue secured zero-coupon convertible loan notes 
with a conversion price of 15 pence per ordinary share in the Company to raise aggregate subscription proceeds of 
£18,000,000. The initial term of the loan notes is 12 months, with an option to extend for a further six months. The loan 
notes are secured against the Company's assets in the UK and subordinated to the Company's existing financing 
facility with HSBC UK Bank PLC which has been amended and restated accordingly upon issuance of the loan notes. 
These events are non-adjusting and therefore had no impact on net assets, loss after tax or total cash flow for 2024. 
Financial Statements
IQE Annual Report and Accounts 2024
169

Glossary
Glossary
Artificial intelligence 
(AI)
A simulation of human intelligence in machines, including machines which are 
programmed to mimic human action or exhibit humanistic traits such as learning 
or problem-solving
Augmented Reality 
(AR)
A technology that superimposes a computer-generated image on a user’s view of 
the real world to provide a composite view
Compound 
semiconductor
A semiconductor formed from more than one element, typically comprising a mixture 
of elements from Groups III and V of the Periodic Table
Cloud computing
A network of remote servers hosted on the internet to store, manage and 
process data
CMOS++
Compound materials on Silicon
CMD
Capital Markets Day
CVD
Chemical Vapour Deposition. IQE’s technique for making Advanced Silicon/Group IV 
epiwafers, characterised by using compound sources flowed across a hot wafer 
where they are ‘cracked’ (reacted) to get the desired material
Device structure
The term used to describe the particular series of epitaxial layers on a substrate 
crystal. They are typically specified by their thickness, composition, electrical and 
opto-electronic properties
Dilute Nitride
A material where small amounts of Nitrogen are added to GaAs in order to enable 
GaAs to be used in applications typically reserved for InP
Epitaxy (epitaxial 
growth)
Deposition of high quality, crystalline layers on a substrate. By specifically choosing 
the composition and sequence of the layers in epitaxial growth, the optical and 
electrical properties of the epiwafer are able to be tuned and these individual layers 
are referred to as ‘epilayers’
Epiwafer or epitaxial 
wafer
The term used to describe the substrate crystal with epitaxial layers deposited 
thereon (see also ‘wafer’)
GaAs
Gallium Arsenide
GaN
Gallium Nitride
GaSb
Gallium Antimonide
Ge
Germanium
InP
Indium Phosphide
Internet of Things 
(IoT)
Network of physical objects – ‘things’ which are able to collect and transfer data over 
a wireless network without human intervention
IR
Infrared
LiDAR
Light detection and ranging – a method for measuring distances by illuminating the 
target with a laser light
MBE
Molecular Beam Epitaxy. One of IQE’s primary techniques for making compound 
semiconductor epiwafers, characterised by deposition using elemental sources 
impinging on a hot wafer where a reaction occurs to get the desired material. MBE 
occurs at extremely low pressure (known as ultra-high vacuum) which is comparable 
to that of outer space
170
IQE Annual Report and Accounts 2024

MOCVD
Metal Organic Chemical Vapour Deposition. One of IQE’s primary techniques for 
making compound semiconductor epiwafers, characterised by deposition using 
compound sources that are flowed across a hot wafer where they are ’cracked’ 
(reacted) to get the desired material. MOCVD occurs at much higher pressures than 
MBE and also goes by the name MOVPE (Metal Organic Vapour Phase Epitaxy)
OEM
Original equipment manufacturer
Opto-electronic 
device
A device or structure in which light and electricity interact to produce, detect or 
manipulate light
PHEMT
Pseudomorphic High Electron Mobility Transistor. A commonly used device for high-
speed switching for wireless communications
QDL
Quantum dot laser. A type of semiconductor laser technology that extends the 
wavelength to longer values for GaAs. Three dimensional islands (dots) are 
engineered to be formed during the growth of the structure active region. 
Reactor
The equipment used to produce epitaxial layers on a substrate
RF
Radio frequency
RGB display
Three-colour display where emissions from red, blue and green pixels create the 
image.
SBTi
Science-Based Target initiative. The SBTi defines and promotes best practice in 
emissions reductions and Net Zero targets in line with climate science 
Semiconductor
A material with resistivity which lies somewhere between that of a conductor and an 
insulator
Si
Silicon
SiC
Silicon Carbide
Structured light 
scanner
A 3D scanning device which measures an object using projected light patterns and a 
camera system
Substrate
The term used to describe the base wafer used for the epitaxial substrate crystal 
growth process
Time of Flight (ToF) 
camera
A camera which calculates the distance between the subject by measuring the trip 
time of an artificial light signal emitted by a laser or LED
VCSEL
Vertical Cavity Surface Emitting Laser, an opto-electronic component used in a variety 
of applications
Wafer
The term used to describe the substrate crystal in the form of thinly sliced discs or the 
substrate disc with one or more epitaxial layers deposited upon it
WiFi 6
Sixth generation of wireless local area networking technologies characterised by 
improved performance characteristics
3D Sensing
Three-dimensional depth sensing technology which is enabled by IQE’s VCSELs
5G
5th generation mobile network designed to provide enhanced connectivity and 
higher speeds
Other Information
IQE Annual Report and Accounts 2024
171

Investor information
Registered Office
Pascal Close 
St Mellons 
Cardiff CF3 0LW 
United Kingdom
Investor Relations
Amy Barlow 
Phone: +44 (0)2920 839 400 
investors@iqep.com
Principal Banker
HSBC Bank Plc 
8 Canada Square 
London E14 5HQ
Auditor
KPMG LLP 
3 Assembly Square 
Britannia Quay 
Cardiff CF10 4AX
Investor information
Oct-24
Jul-24
Apr-24
Jan-24
Dec-24
Share price (GBP)
55
60
50
45
40
35
30
25
20
15
10
Share price information
Exchange: London Stock Exchange FTSE AIM Index 
Ticker: IQE:LN 
ISIN: GB0009619924
Share price performance
as at 31 December 2024 
Loss per share: (3.96p)
Nominated Advisers and Brokers
NOMAD and Joint Broker
Peel Hunt LLP 
7th Floor 
100 Liverpool Street 
London EC2M 2AT
Joint Broker
Deutsche Numis 
45 Gresham Street 
London EC2V 7BF
Registrar
Equiniti 
Aspect House 
Spencer Road 
Lancing 
West Sussex BN99 6DA
Financial Public Relations
Headland Consultancy 
3rd Floor, One New Change 
London EC4M 9AF 
iqe@headlandconsultancy.com
172
IQE Annual Report and Accounts 2024