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IsoRay, Inc.

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FY2006 Annual Report · IsoRay, Inc.
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U N I T E D  S T A T E S  SE C U R I T I E S   A N D  E X C H A N G E  C O M M I S S I O N 
Washington, D.C.  20549 

FORM 10-KSB 

(cid:59)  Annual Report of Small Business Issuers under Section 13 or 15(d) of the Securities 

Exchange Act of 1934 
For the fiscal year ended June 30, 2006 

or 

(cid:133)  Transition Report of Small Business Issuers under Section 13 or 15(d) of the Securities 

Exchange Act of 1934 
For the transition period from __________ to ____________ 

Commission File No.  000-14247 

ISORAY, INC. 
(Exact name of registrant as specified in its charter) 

Minnesota 
(State of incorporation) 

350 Hills St., Suite 106 
Richland, Washington 99354 
(Address of principal executive offices) 

41-1458152 
(I.R.S. Employer Identification No.) 

(509) 375-1202 
(Registrant’s telephone number) 

Issuer's telephone number, including area code:  (509) 375-1202 

Securities registered under Section 12 (b) of the Exchange Act - None 

Securities registered under Section 12(g) of the Exchange Act - Common Stock - $0.001 par value 

Number of shares outstanding of each of the issuer's classes of common equity:

Class 
Common stock, $0.001 par value 

Outstanding as of September 15, 2006  
15,802,394 

Check whether the issuer is not required to file reports pursuant to Section 13 or 15(d) of the Exchange Act. (cid:134) 

Check whether the issuer has (1) filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act 
during the past 12 months (or for such shorter period the Company was required to file such reports), and (2) has 
been subject to such filing requirements for the past 90 days. Yes ⌧ No (cid:134) 

Check if there is no disclosure of delinquent filers in response to Item 405 of Regulation S-B contained in this form, 
and  no  disclosure  will  be  contained,  to  the  best  of  Company's  knowledge,  in  definitive  proxy  or  information 
statements incorporated by reference in Part III of this Form 10-KSB or any amendment to this Form 10-KSB. (cid:134) 
Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act):  
Yes (cid:134) No ⌧ 

State issuer’s revenues for its most recent fiscal year – $1,994,306. 

State the aggregate market value of the voting and non-voting common equity held by non-affiliates computed by 
reference to the price at which the common equity was sold, or the average bid and asked prices of such common 
equity, as of a specified date within the past 60 days - $44,717,880 as of September 15, 2006. 

Documents incorporated by reference – none. 
Transitional Small Business Disclosure Format : Yes  (cid:134) No ⌧ 

 
 
 
 
 
 
ISORAY, INC. 
(formerly Century Park Pictures Corporation) 

Table of Contents 

Page 

PART I 

Item 1  Description of Business   .............................................................................................    1 
Item 2  Description of Property   .............................................................................................   29 
Item 3   Legal Proceedings  ......................................................................................................   30 
Submission of Matters to a Vote of Security Holders   ...............................................   30 
Item 4 

PART II 
Item 5  Market for Common Equity and Related Stockholders’ Matters   ..............................   30 
Item 6  Management's Discussion and Analysis  ....................................................................   32 
Item 7 
Financial Statements   .................................................................................................   40 
Item 8  Changes in and Disagreements with Accountants on Accounting 

and Financial Disclosures   ..........................................................................................  40 
Item 8A  Controls and Procedures   ............................................................................................  41 
Item 8B   Other Information…………………………………………………………………….   42 

PART III 
Item 9  Directors, Executive Officers, Promoters, and Control Persons; 

Compliance with Section 16(a) of the Exchange Act  ................................................  42 
Item 10  Executive Compensation   ...........................................................................................  48 
Item 11  Security Ownership of Certain Beneficial Owners and Management 

and Related Stockholder Matters  ...............................................................................  50 
Item 12  Certain Relationships and Related Transactions   .......................................................  51 
Item 13  Exhibits and Reports on Form 8-K   ............................................................................  53 
Item 14  Principal Accountant Fees and Services  ....................................................................  56 

SIGNATURES  ........................................................................................................................... 

 
 
 
 
 
 
 
 
 
 
 
 
 
Caution Regarding Forward-Looking Information

All  statements  contained  in  this  Form  10-KSB,  other  than  statements  of  historical  facts,  that  address 
future  activities,  events  or  developments  are  forward-looking  statements,  including,  but  not  limited  to, 
statements  containing  the  words  “believe,”  “anticipate,”  “expect”  and  words  of  similar  import.  These 
statements are based on certain assumptions and analyses made by us in light of our experience and our 
assessment  of  historical  trends,  current  conditions  and  expected  future  developments  as  well  as  other 
factors we believe are appropriate under the circumstances. However, whether actual results will conform 
to  the  expectations  and  predictions  of  management  is  subject  to  a  number  of  risks  and  uncertainties 
described  under  “Risk  Factors”  beginning  on  page  22  below  that  may  cause  actual  results  to  differ 
materially. 

Consequently,  all  of  the  forward-looking  statements  made  in  this  Form  10-KSB  are  qualified  by  these 
cautionary  statements  and  there  can  be  no  assurance  that  the  actual  results  anticipated  by  management 
will  be  realized  or,  even  if  substantially  realized,  that  they  will  have  the  expected  consequences  to  or 
effects on our business operations.  

As  used  in  this  Form  10-KSB,  unless  the  context  requires  otherwise,  “we”  or  “us”  or  the  “Company” 
means IsoRay, Inc. and its subsidiary. 

PART I

ITEM 1 - DESCRIPTION OF BUSINESS 

General

Century Park Pictures Corporation (“Century”) was organized under Minnesota law in 1983.  Century had 
no operations since its fiscal year ended September 30, 1999 through June 30, 2005. 

On  July  28,  2005,  IsoRay  Medical,  Inc.  (“Medical”)  became  a  wholly-owned  subsidiary  of  Century 
pursuant to a merger.  Century changed its name to IsoRay, Inc. (“IsoRay” or the “Company”).  In the 
merger,  the  Medical  stockholders  received  approximately  82%  of  the  then  outstanding  securities  of  the 
Company.  

Medical, a Delaware corporation, was incorporated effective June 15, 2004 to develop, manufacture and 
sell isotope-based medical products and devices for the treatment of cancer and other diseases.  Medical is 
headquartered in Richland, Washington. 

Medical was formed for the purpose of combining the operations of IsoRay, Inc. (a former Washington 
corporation)  (“IsoRay  (WA)”)  and  its  subsidiary,  IsoRay  Products  LLC,  two  companies  that  shared 
common  ownership  and  management  with  Medical.      Medical’s  management  initiated  a  merger 
transaction effective October 1, 2004, to combine operations. 

Business Operations 

Certain Defined Terms

The technical terms defined below are important to understand as they are used throughout this report and 
particularly  in  this  discussion  of  the  business  of  IsoRay.  When  used  in  this  report,  unless  the  context 
requires otherwise: 

“Brachytherapy”  refers  to  the  process  of  placing  therapeutic  radiation  sources  in,  or  near,  diseased 
tissue. Brachytherapy is derived from a Greek term meaning “short distance” therapy.  

 
  
 
 
 
  
  
  
  
 
 
 
  
  
  
131
“Cesium-131”,  “ Cs”  or  “Cs-131”
  is  an  isotope  of  the  element  Cesium  that  gives  off  low  energy, 
“soft”  x-rays  as  it  decays.  Cesium-131  decays  to  50%  of  its  original  activity  every  9.7  days,  becoming 
essentially inert after 100 days.  

“EBRT” (external beam radiation therapy) is the external treatment of prostate cancer using an x-ray-like 
machine that targets a beam of radiation at the cancer site. The treatment damages genetic material within 
the cancer cells, which prevents the cells from growing and the affected cells eventually die. Treatments 
are generally performed at an outpatient center five days a week for seven or eight weeks. 

“Half-life” means the time required for a radioisotope to decay to one-half of its previous activity. The 
amount of radiation emitted thus decreases to 25% of original activity in two half-lives, 12.5% in three 
half-lives, and so on. 

“Isotope”  refers  to  atoms  of  the  same  element  that  have  different  atomic  masses.  The  word  “isotope” 
means “same place,” referring to the fact that isotopes of a given element have the same atomic number 
and  hence  occupy  the  same  place  in  the  Periodic  Table  of  the  Elements.  Thus,  they  are  very  similar  in 
their chemical behavior.  

131

“ Cs seed”
currently known.  

 is the name by which IsoRay’s first product, the Cesium-131-based brachytherapy seed, is 

“Pure-beta particle emitter” is a radioisotope whose only emissions during radioactive decay are beta 
particles (electrons). Beta particles can travel several millimeters in tissue. 

“RP”  (radical  prostatectomy  or  prostatectomy)  is  the  complete  surgical  removal  of  the  prostate,  under 
significant  anesthesia.  Two  main  types  of  surgery  have  evolved:  nerve-sparing  and  non  nerve-sparing. 
The nerve-sparing surgery is designed to minimize damage to the nerves that control penile erection. 

“Radiobiologic” is characteristic of the effects of radiation on organisms or tissues, most commonly the 
effectiveness of therapeutic radiation in interrupting cell growth and replication. 

“Radioisotope” is a natural or man-made isotope of an element that spontaneously decays while emitting 
ionizing radiation. 

“Seed”  is  a  common  term  for  small  radiation  sources  consisting  of  a  radioisotope  sealed  within  a 
biocompatible  capsule  such  as  gold  or  titanium,  suitable  for  temporary  or  permanent  brachytherapy 
implantation. 

“Therapeutic  radiation”  refers  to  ionizing  radiation  with  sufficient  energy  to  disrupt  basic  biological 
processes of cells. 

Overview 

IsoRay  intends  to  utilize  its  patented  radioisotope  technology,  experienced  chemists  and  engineers,  and 
management team to create a major therapeutic medical isotope and medical device company with a goal 
of providing improved patient outcomes in the treatment of prostate cancer and other solid tumor cancers. 
IsoRay  began  production  and  sales  of  its  Food  and  Drug  Administration  (“FDA”)  cleared  product,  the 
IsoRay  131Cs  brachytherapy  seed,  in  October  2004  for  the  treatment  of  prostate  cancer.  Management 
believes its technology will allow it to capture a leadership position in an expanded brachytherapy market. 
The more clinically beneficial characteristics of the Cesium-131 (Cs-131 or 131Cs) isotope are expected to 
decrease  radiation  exposure  to  the  patient  and  reduce  the  severity  and  duration  of  side  effects,  while 
treating cancer cells as effectively, if not more so than other isotopes used in seed brachytherapy. Cesium-
131 could also enable meaningful penetration in other solid tumor applications such as breast, lung, liver, 
brain and pancreatic cancer, expanding the total available market opportunity. 

2 

 
 
  
  
  
  
  
  
  
  
  
  
  
 
 
Brachytherapy seeds are small devices used in an internal radiation therapy procedure. In recent years the 
procedure has become one of the primary treatments for prostate cancer and is now used more often than 
surgical  removal  of  the  prostate.  The  brachytherapy  procedure  places  radioactive  seeds  as  close  as 
possible  to  (in  or  near)  the  cancer  tumor  (the  word  “brachytherapy”  means  close  therapy).  The  seeds 
deliver therapeutic radiation by killing the tumor cells and cells located in the immediate vicinity of the 
tumor while minimizing exposure to adjacent healthy tissue. This allows doctors to administer a higher 
dose  of  radiation  at  one  time  than  is  possible  with  external  beam  radiation.  Each  seed  contains  a 
radioisotope  sealed  within  a  welded  titanium  capsule.  Approximately  85  to  135  seeds  are  permanently 
implanted in the prostate in a 45-minute outpatient procedure. The isotope decays over time and the seeds 
become  inert.  The  seeds  may  be  used  as  a  primary  treatment  or,  in  conjunction  with  other  treatment 
modalities  such  as  external  beam  radiation  therapy,  chemotherapy,  or  as  treatment  for  residual  disease 
after excision of primary tumors.  

Management believes that the IsoRay 131Cs seed represents the first major advancement in brachytherapy 
technology in over 18 years with attributes that could make it the long term “seed of choice” for internal 
radiation procedures.  The 131Cs seed has FDA approval for treatment of malignant disease (e.g. cancers 
of the head and neck, brain, liver, lung, breast, prostate, etc.) and may be used in surface, interstitial, and 
intracavity applications for tumors with known radiosensitivity. 

The  131Cs isotope appears to have specific advantages for treating cancer over Iodine-125 (I-125 or  125I) 
and  Palladium-103  (Pd-103  or  103Pd),  the  other  isotopes  commonly  used  in  brachytherapy  procedures. 
IsoRay believes that the short half-life and higher dose rate characteristics of  131Cs will expand industry 
applications  and  facilitate  meaningful  penetration  into  the  treatment  of  other  forms  of  cancer  such  as 
breast  cancer.  The  shorter  half-life  of 9.7 days  for  131Cs  (versus  17  days  for  103Pd  and  60 days  for  125I) 
mitigates negative effects of long radiation periods on healthy tissue and is believed to reduce the duration 
of certain side effects. The higher initial dose rate is believed to be more effective on fast growing cancers 
by aggressively attacking cancer cells and disrupting cancer cell re-population cycles. The characteristics 
of 131Cs may result in the use of 10-30% fewer seeds per procedure compared to Pd-103, thereby reducing 
the total physical radiation dose to the patient and reducing the costs of the procedure for both third-party 
payers and the patient.  

IsoRay and its predecessor companies have accomplished the following key milestones:  

(cid:131)  Treated 500th patient (September 2006); 
(cid:131)  Opened a new manufacturing and production facility (October 2005); 
(cid:131)  Deployed a direct sales force to the market (July 2004 - July 2005); 
(cid:131)  Developed a treatment protocol for prostate cancer with a leading oncologist (January 2005); 
(cid:131)  Treated the first patient (October 2004); 
(cid:131)  Commenced production of the 131Cs seed (August 2004); 
(cid:131)  Filed five additional patent applications for the 131Cs process (November 2003 - August 2004); 
(cid:131)  Obtained a Nuclear Regulatory Commission Sealed Source and Device Registration required by 

the Washington State Department of Health and the FDA (September 2004); 

(cid:131)  Received a Radioactive Materials License from the Washington State Department of Health (July 

(cid:131) 

2004); 
Implemented  an  ISO-9000  Quality  Management  System  and  production  operating  procedures 
(under continuing development); 

(cid:131)  Signed  a  Commercial  Work  for  Others  Agreement  between  Battelle  (manager  of  the  Pacific 
Northwest  National  Laboratory  or  PNNL)  and  IsoRay,  allowing  initial  production  of  seeds 
through 2006  at PNNL (April 2004); 

(cid:131)  Raised over $23.0 M in debt and equity funding (September 2003 - August 2006) 
(cid:131)  Obtained  favorable  Medicare  reimbursement  codes  for  the  Cs-131  brachytherapy  seed 

(November 2003); 

(cid:131)  Obtained FDA 510(k) approval to market the first product: the 131Cs brachytherapy seed (March 

2003); 

3 

 
 
  
  
 
(cid:131)  Completed  initial  radioactive  seed  production,  design  verification,  computer  modeling  of  the 
radiation profile, and actual dosimetric data compiled by the National Institute of Standards and 
Technology and PNNL (October 2002); and 

(cid:131)  Obtained initial patent for 131Cs isotope separation and purification (May 2000). 

Incidence of Prostate Cancer

Industry Information

Excluding skin cancer, prostate cancer is the most common form of cancer, and the second leading cause 
of cancer deaths in men. The American Cancer Society estimated there will be about 234,460 new cases 
of  prostate  cancer  diagnosed  and  an  estimated  27,350  deaths  associated  with  the  disease  in  the  United 
States during 2006. Because of early detection techniques (e.g., screening for prostate specific antigen, or 
PSA)  approximately  70%  (164,100)  of  these  cases  are  potentially  treatable  with  seed  brachytherapy, 
when the cancers are still locally confined within the prostate.  

The prostate is a walnut-sized gland surrounding the male urethra, located below the bladder and adjacent 
to  the  rectum.  The  two  most  prevalent  prostate  diseases  are  benign  prostatic  hyperplasia  (BPH)  and 
prostate cancer. BPH is a non-cancerous enlargement of the innermost part of the prostate. Prostate cancer 
is a malignant tumor that begins most often in the periphery of the gland and, like other forms of cancer, 
may spread beyond the prostate to other parts of the body.  

Prostate cancer incidence and mortality increase with age. Prostate cancer is found most often in men who 
are over the age of 50. More than seven out of ten men diagnosed with prostate cancer are over the age of 
65.  According  to  the  American  Cancer  Society,  approximately  one  man  in  six  will  be  diagnosed  with 
prostate cancer during his lifetime.  

In  addition  to  age,  other  risk  factors  are  linked  to  prostate  cancer,  such  as  genetics.    Men  who  have 
relatives that have been affected, especially if the relatives were young at the time of diagnosis, have an 
even higher risk of contracting the disease.  Researchers have discovered that changes in certain genes, 
influenced  by  DNA  mutations  inherited  from  a  parent,  may  cause  some  men  to  be  more  inclined  to 
develop prostate cancer. It has also been suggested that environmental factors such as exposure to cancer-
causing  chemicals  or  radiation  may  cause  DNA  mutations  in  many  organs.    Another  factor  that  may 
contribute to prostate cancer is diet, with diets high in fat and high in calcium possibly increasing the risk 
of prostate cancer.  

The American Cancer Society recommends that men without symptoms, risk factors and who have a life 
expectancy of at least ten years, should begin regular annual medical exams at the age of 50, and believes 
that health care providers should offer as part of the exam the prostate-specific antigen (PSA) blood test 
and a digital rectal examination.  The PSA blood test determines the amount of prostate specific antigen 
present in the blood.  PSA is found in a protein secreted by the prostate, and elevated levels of PSA can 
be associated with either prostatitis (a noncancerous inflammatory condition) or a proliferation of cancer 
cells  in  the  prostate.    Transrectal  ultrasound tests  and  biopsies  are  typically performed  on  patients  with 
elevated PSA readings to confirm the existence of cancer.  

A  tumor  found  by  a  prostate  biopsy  is  usually  assigned  a  grade  by  a  pathologist.  The  most  common 
prostate cancer grading system is called the Gleason grading system. A Gleason score, which ranges from 
2 to 10, usually is used to estimate the tumor’s growth rate. Typically, the lower the score, the slower the 
cancer  grows.  Most  localized  cancers  of  the  prostate  gland  are  associated  with  an  intermediate  score 
ranging from Gleason scores 4 through 6. 

Staging is the process of determining how far the cancer has spread. The treatment and recovery outlook 
depend on the stage of the cancer. The TNM system is the staging process used  most often. The TNM 
system  describes  the  extent  of  the  primary  tumor  (T  stage),  whether  the  cancer  has  spread  to  nearby 
lymph  nodes  (N  stage),  and  the  absence  or  presence  of  distant  metastasis  (M  stage).  The  TNM 
4 

 
 
 
  
  
 
 
  
  
 
 
descriptions can be grouped together with stages labeled 0 through IV (0-4). The higher the number, the 
further the cancer has spread. The following table summarizes the various stages of prostate cancer. 

Stages 
T1 or T2 
T3 or T4 
N+ or M+ 

Characteristics of Prostate Cancer 
Localized in the prostate 
Locally advanced 
Spread to pelvic lymph nodes (N+) or distant organs (M+) 

Treatment Options and Protocol

In  addition  to  brachytherapy,  localized  prostate  cancer  is  commonly  treated  with  radical  prostatectomy 
(RP)  and  external  beam  radiation  therapy  (EBRT).  Recently,  intensity  modulated  radiation  therapy 
(IMRT)  has  seen  increased  application,  particularly in  combination  with  brachytherapy  for  cancers  that 
have  begun  to  spread  beyond  the  prostate.  Other  treatments  include  cryosurgery,  hormone  therapy, 
watchful waiting, and finasteride, a drug commonly prescribed to treat benign enlargement of the prostate 
and male baldness. Some of these therapies may be combined in special cases to address a specific cancer 
stage or patient need. When the cancerous tissue is not completely eliminated, the cancer typically returns 
to the primary site, often with metastases to other areas.  

Radical  Prostatectomy.  Historically  the  most  common  treatment  option  for  prostate  cancer,  radical 
prostatectomy  is  an  invasive  surgical  procedure  in  which  the  entire  prostate  gland  is  removed.  RP  is 
performed  under  general  anesthesia  and  typically  involves  a  hospital  stay  of  several  days  for  patient 
observation and recovery. This procedure is often associated with relatively high rates of impotence and 
incontinence.  For  instance,  a  study  published  in  the  Journal  of  the American  Medical  Association  in 
January 2000 reported that approximately 60% of men who had received RP reported erectile dysfunction 
as a result of surgery. The same report found that approximately 40% of the patients studied reported at 
least  occasional  incontinence.  New  bilateral  nerve-sparing  techniques  are  currently  being  used  more 
frequently  in  order  to  address  these  side  effects,  but  these  techniques  require  a  high  degree  of  surgical 
skill. RP is typically more expensive than other common treatment modalities. 

External Beam Radiation Therapy. EBRT allows patients to receive treatment on an outpatient basis and 
at  a  lower  cost  than  RP.  EBRT  involves  directing  a  beam  of  radiation  from  outside  the  body  at  the 
prostate gland in order to destroy cancerous tissue. The course of treatment usually takes seven to eight 
weeks to deliver the total dose of radiation prescribed to kill the tumor. Studies have shown, however, that 
the  ten-year  disease  free  survival  rates  with  treatment  through  EBRT  are  less  than  the  disease  free 
survival rates after RP or brachytherapy treatment. In addition, because the radiation beam travels through 
the  body  to  reach  the  prostate,  normal  tissue  lying  in  the  path  of  the  radiation  beam  is  also  damaged. 
Other  side  effects  are  associated  with  EBRT.  For  instance,  rectal  wall  damage  caused  by  the  radiation 
beam  is  a  noted  negative  side  effect.  Data  suggests  that  between  30%  and  40%  of  the  patients  who 
undergo EBRT suffer problems with erectile dysfunction after treatment. 

Intensity  Modulated  Radiation  Therapy.  IMRT  is  a  newer,  more  advanced  form  of  EBRT  in  which 
sophisticated computer control is used to aim the beam at the target volume from multiple different angles 
and to vary the intensity of the beam. Thus, damage to normal tissue and critical structures is minimized 
by distributing the unwanted radiation over a larger geometric area. The course of treatment is similar to 
EBRT and requires daily doses over a period of seven to eight weeks to deliver the total dose of radiation 
prescribed to kill the tumor. IMRT is relatively new and thus not widely available for use as a treatment 
modality.  As  a  result  fewer  clinical  data  regarding  treatment  effectiveness  and  the  incidence  of  side 
effects  are available. One  advantage of IMRT, and to some  extent EBRT, is the ability to treat cancers 
that  have  begun  to  spread  from  the  tumor  site.  An  increasingly  popular  therapy  for  patients  with  more 
advanced prostate cancer is a combination of IMRT with seed implant brachytherapy.  

Cryosurgery. Cryosurgery, a procedure in which tissue is frozen to destroy tumors, is another treatment 
option  for  prostate  cancer.  Currently,  this  procedure  is  less  widely  used,  although  promising  treatment 

5 

 
 
 
 
 
 
 
 
 
  
  
 
 
  
 
outcomes  have  been  reported.  Cryosurgery  typically  requires  a  one  to  two  day  hospital  stay  and  is 
associated with higher rates of impotence and other side effects than seed implant brachytherapy. 

Other Treatments. Other treatments include hormone therapy and chemotherapy, which may be used to 
reduce  the  size  of  cancerous  tumors.  However,  these  treatments  are  not  intended  to  ultimately  cure  a 
patient of prostate cancer. Instead, such treatment choices are made by physicians in an attempt to extend 
patients’  lives  if  the  cancer  has  reached  an  advanced  stage  or  as  ancillary  treatment  methods  used  in 
conjunction  with  other  treatment  modalities.  Common  side  effects  of  hormone  therapy  are  impotence, 
decreased libido and breast enlargement.  Common side effects of chemotherapy are nausea, hair loss and 
fatigue. 

“Watchful waiting” or “active surveillance”, while not a treatment, is recommended by some physicians 
in extreme circumstances based on the severity and growth rate of the disease, as well as the age and life 
expectancy of the patient. Physicians and patients who choose watchful waiting are frequently seeking to 
avoid  the  negative  side  effects  associated  with  RP  or  other  treatment  modalities.  Through  careful 
monitoring of PSA levels and close examination for advancing symptoms of prostate cancer, physicians 
may choose active treatments at a later date. 

Treatment Protocol. Prostate cancer patients electing seed therapy first undergo an ultrasound test or CT 
scan,  which  generates  a  two-dimensional  image  of  the  prostate.  With  the  assistance  of  a  computer 
program, a three-dimensional treatment plan is created that calculates the number and placement of the 
seeds required for the best possible distribution of radiation to the prostate. Once the implant model has 
been constructed, the procedure is scheduled and the seeds are ordered. The number of seeds implanted 
normally  ranges  from  85  to  135,  with  the  number  of  seeds  varying  with  the  size  of  the  prostate.  The 
procedure is  usually performed under local anesthesia in an outpatient setting. The seeds  are implanted 
using  needles  inserted  into  the  prostate.  When  all  seeds  have  been  inserted,  seed  placement  is  verified 
through  an  ultrasound  image,  CT  scan,  fluoroscope  or  MRI.  An  experienced  practitioner  typically 
performs the procedure in approximately 45 minutes, with the patient normally returning home the same 
day.  Most  patients  are  able  to  return  to  their  normal  activities  within  one  or  two  days  following  the 
procedure.  

Origin of Brachytherapy seeds

One of the first reports in the medical literature regarding brachytherapy seeds that deliver “soft x-ray” 
radiation  directly  to  tumors  by  permanent  implantation  appeared  in  1965,  authored  by  Donald  C. 
Lawrence  and  Dr. Ulrich  K.  Henschke.  Don  Lawrence  later  developed  and  patented  the  titanium-
encapsulated  I-125  brachytherapy  seed.  His  company,  Lawrence  Soft  Ray  Inc.,  provided  the  world’s 
supply of seeds from 1967 to 1978 until the 3M Corporation purchased the technology. Eventually 3M 
sold  the  business  to  Amersham  PLC,  which  spun  off  this  business  to  its  division  ONCURA,  today  the 
market leader in Iodine-125 seeds. All commercially available seeds trace their origin to Mr. Lawrence’s 
invention. Don Lawrence was a founder of IsoRay, LLC, the first predecessor company to IsoRay. 

Brachytherapy has been used as a treatment for prostate cancer for more than 30 years. Formerly, seeds 
containing  the  radioactive  isotope  Iodine-125  were  implanted  in  prostate  tumors  through  open  surgery. 
However, this technique fell into disfavor because the seeds were often haphazardly arranged resulting in 
radiation not reaching all of the targeted cancerous tissue. Compounding this was the fact that often an 
unintended  radiation  dose  was  delivered  to  healthy  surrounding  tissues,  particularly  the  urethra  and 
rectum.  Originally,  brachytherapy  earned  an  unfavorable  reputation  because  the  early  adopters  did  not 
have the imaging technologies needed for accurate placement of the seeds. This resulted in  poor tumor 
control and greater damage to surrounding healthy tissue. Since the introduction of the ultrasound-guided, 
transperineal  implantation  technique  in  the  late  1980s,  brachytherapy  has  become  a  treatment  that  not 
only  provides  excellent  therapeutic  value  but  is  very  convenient  and  economical  for  the  patient.  The 
benefits of the advancements in imaging, computer dose planning, and the actual implant procedure have 
been validated by the improved clinical results achieved using modern brachytherapy techniques.  

6 

 
 
 
 
 
 
 
 
 
The  introduction  of  Palladium-103  in  the  mid-1980s  represented  a  major  technology  advancement  in 
brachytherapy  and  played  a  significant  role  in  the  dramatic  increase  in  the  number  of  brachytherapy 
procedures  performed.  Within  a  relatively  short  period  of  time,  103Pd  captured  40%  of  the  growing 
brachytherapy market.  

Cesium-131 represents the  first  major  advancement  in  brachytherapy  technology  in  over  18  years  with 
attributes  that  management  believes  could  make  it  the long  term  “seed  of  choice”  for  internal  radiation 
procedures. Management believes that the  131Cs seed has specific clinical advantages for treating cancer 
over 125I and 103Pd.  

There is a large and growing potential market for the Company’s products. Several significant clinical and 
market  factors  are  contributing  to  the  increasing  popularity  of  the  brachytherapy  procedure.  In  Europe 
brachytherapy is growing in excess of 25% per year and it is expected that market growth in the U.S. will 
also increase dramatically. In 1996 only 4% of prostate cancer cases were treated with brachytherapy, or 
about  8,000  procedures.  In  2005,  it  was  estimated  that  over  60,000  brachytherapy  procedures  were 
performed  for  prostate  cancer.  Brachytherapy  as  a  treatment  is  now  more  common  than  radical 
prostatectomy  and  has  become  the  treatment  of  choice  for  early-stage  prostate  cancer.  Considerable 
attention is now being given to high risk and faster growing prostate cancers as well. Brachytherapy has 
significant  advantages  over  competing  treatments  including  lower  cost,  better  survival  data,  fewer  side 
effects, a faster recovery time and the convenience of a single outpatient procedure that generally lasts 45 
minutes  (Merrick,  et  al.,  Techniques  in Urology,  Vol.  7,  2001;  Potters,  et  al.,  Journal of  Urology,  May 
2005; Sharkey, et al., Current Urology Reports, 2002).  

Clinical Results

Long  term  survival  data  are  now  available  for  brachytherapy  with  103Pd  and  125I,  which  support  the 
efficacy  of  brachytherapy.  Clinical  data  indicate  that  brachytherapy  offers  success  rates  for  early-stage 
prostate cancer treatment that are equal to or better than those of RP or EBRT. While clinical studies of 
brachytherapy to date have focused on results from brachytherapy with Pd-103 and I-125, management 
believes  that  this  data  will  be  relevant  for  brachytherapy  with  Cs-131,  and  Cs-131  may  offer  improved 
clinical outcomes over Pd-103 and I-125, given its shorter half-life and higher energy. 

Improved patient outcomes. A number of published studies on the use of  103Pd and 125I brachytherapy in 
the treatment of early-stage prostate cancer have been very positive (we have not obtained consents to cite 
the studies listed below). 

(cid:131) 

In September 2006 a 5 year prospective study to assess the impact of interstitial brachytherapy on 
the  quality  of  life  of  patients  with  localized  prostate  cancer  was  published.  The  results  of  the 
present study confirm that the impact of interstitial brachytherapy on the patients’ quality of life 
is  low  despite  its  transient  negative  effects  on  some  function,  and  extend  existing  knowledge 
concerning  quality  of  life  after  interstitial  brachytherapy.  International  Journal  of  Radiation 
Oncology; Volume 66; 1;31-37. 

(cid:131)  A  twelve-year  clinical  study  published  in  the  2004  Supplement  of  the  International  Journal  of 
Radiation  Oncology,  Biology  and  Physics,  reported  relative  survival  rate  of  84%  for  low  risk 
cancer patients, 78% for intermediate risk cancer patients and 68% for high risk cancer patients. 
The  study  was  conducted  by  Dr. Lou  Potters,  et  al.  of  the  New  York  Prostate  Institute  and 
included 1,504 patients treated with brachytherapy between 1992 and 2000. 

(cid:131)  A study published in the January 2004 issue of the International Journal of Radiation Oncology, 
Biology and Physics, reported that brachytherapy, radical prostatectomy, high-dose external beam 
radiation therapy and combined therapies produced similar cure rates. The study was conducted 
by Dr. Patrick Kupelian, Dr. Louis Potters, et al. and included 2,991 patients with Stage T1 or T2 
prostate  cancer.  Of  these  patients,  35%  of  patients  underwent  surgery,  16%  received  low-dose 
EBRT,  10%  received  high-dose  EBRT,  7%  received  combination  therapy  and  32%  received 
brachytherapy.  After  five  years,  the  biochemical  relapse-free  survival  rate  was  83%  for 

7 

 
 
 
 
 
 
 
 
brachytherapy,  81%  for  radical  prostatectomy,  81%  for  high-dose  EBRT,  77%  for  combination 
therapy and 51% for low-dose EBRT. 

(cid:131)  A  nine-year  clinical  study  published  in  the  March  2000  issue  of  the  International  Journal  of 
Radiation  Oncology,  Biology  and  Physics,  reported  that  83.5%  of  patients  treated  with  Pd-103 
seeds were cancer-free at nine years. The study was conducted by Dr. John Blasko of the Seattle 
Prostate Institute and included 230 patients with clinical stage T1 and T2 prostate cancer. Only 
3% experienced cancer recurrence in the prostate. 

(cid:131)  Results  from  a  10-year  study  conducted  by  Dr. Datolli  and  Dr. Wallner  published  in  the 
International  Journal  of  Radiation  Oncology,  Biology  and  Physics  in  September  2002,  were 
presented  at  the  October  2002  American  Society  for  Therapeutic  Radiology  and  Oncology 
(ASTRO) conference confirming the effectiveness of the Pd-103 seed in patients with aggressive 
cancer  who  previously  were  considered  poor  candidates  for  brachytherapy.  The  10-year  study 
was comprised of 175 patients with Stage T2-T3 prostate cancer treated from 1991 through 1995. 
Of  these  patients,  79  percent  remained  completely  free  of  cancer  without  the  use  of  hormonal 
therapy or chemotherapy. 

(cid:131)  A  study  by  the  Northwest  Prostate  Institute  in  Seattle,  Washington  reported  79%  disease-free 
survival at 12 years for brachytherapy in combination with external beam radiation (Ragde, et al., 
Cancer, July 2000). The chance of cure from brachytherapy is nearly 50% higher than for other 
therapies for men with large cancers (PSA 10-20) and over twice as high as other therapies for 
men  with  the  largest  cancers  (PSA  20+)  (K.  Wallner,  Prostate  Cancer:  A  Non-Surgical 
Perspective, Smart Medicine Press, 2000). 

Reduced Incidence of Side Effects. Sexual potency and urinary incontinence are two major concerns men 
face when choosing among various forms of treatment for prostate cancer. Because the IsoRay 131Cs seed 
delivers a highly concentrated and confined dose of radiation directly to the prostate, healthy surrounding 
tissues and organs typically experience less radiation exposure. Management believes, and initial results 
appear to support, that this should result in lower incidence of side effects and complications than may be 
incurred  with  other  conventional  therapies,  and  when  side  effects  do  occur,  they  should  resolve  more 
rapidly than those experienced with I-125 and Pd-103 isotopes. 

Favorable Market Factors

Lower  Treatment  Cost.  The  total  one-time  cost  of  brachytherapy  ranges  from  $10,000  to  $17,000  per 
procedure.  This  is  less  than  the  cost  of  a  radical  prostatectomy  or  RP,  which  ranges  from  $17,000  to 
$20,000,  excluding  treatment  for  side  effects  and  post-operative  complications.  Brachytherapy  cost  is 
comparable to the cost of EBRT (external beam radiation), which is approximately $14,000 to $35,000 
for a seven to nine week course of treatment.  

Favorable  Demographics.  Prostate  cancer  incidence  and  mortality  increase  with  age.  Prostate  cancer  is 
found most often in men who are over the age of 50. The National Cancer Institute has reported that the 
incidence of prostate cancer increases dramatically in men over the age of 55. Currently, one out of every 
six men is at lifetime risk of developing prostate cancer. More than seven out of ten men diagnosed with 
prostate cancer are over the age of 65. At the age of 70, the chance of having prostate cancer is 12 times 
greater  than  at  age  50.  According  to  the  American  Cancer  Society,  prostate  cancer  incidence  rates 
increased  between  1988  and  1992  due  to  earlier  diagnosis  in  men  who  otherwise  had  no  sign  of 
symptoms. Early screening has fostered a decline in the prostate cancer death rate since 1990.  

The number of prostate cancer cases in the U.S. is expected to increase due to the expanding population 
of men over the age of 55. The U.S. Census Bureau estimates this segment of the population will increase 
from  25.9  million  men  in  2000  to  32  million  men  by  2008  -  a  24%  increase.  Extrapolating  that  data, 
management  believes  that  the  U.S.  will  provide  over  180,000  candidates  annually  for  prostate 
brachytherapy by 2008.  

Increased PSA Screening. Early PSA screening and testing leads to early diagnosis. The American Cancer 
Society recommends that men without symptoms or risk factors and who have a life expectancy of at least 
8 

 
 
  
  
  
  
 
  
ten  years,  should  begin  regular  annual  medical  exams  at  the  age  of  50,  and  believes  that  health  care 
providers  should  offer  as  part  of  the  exam  the  prostate-specific  antigen  blood  test.  The  PSA  blood  test 
determines the amount of prostate specific antigen present in the blood. PSA is found in a protein secreted 
by  the  prostate,  and  elevated  levels  of  PSA  can  be  associated  with  either  prostatitis  (a  noncancerous 
inflammatory condition) or a proliferation of cancer cells in the prostate. Industry studies have shown that 
the PSA test  can detect prostate cancer up to five years earlier than the digital rectal  exam. Ultrasound 
tests and biopsies are typically performed on patients with elevated PSA readings to confirm the existence 
of cancer.  

Our Strategy

The key elements of IsoRay’s strategy include:  

(cid:131)  Continue to introduce the IsoRay  Cs seed into the U.S. brachytherapy market

. Utilizing a direct 
sales organization and selected channel partners, IsoRay intends to capture a leadership position 
by expanding overall use of the brachytherapy procedure for prostate cancer, capturing much of 
the incremental market growth and taking market share from existing competitors. 

131

(cid:131)  Create  a  state-of-the-art  manufacturing  process.  IsoRay  has  constructed  a  state-of-the-art 
manufacturing  facility  in  Richland,  Washington  in  its  newly  leased  facility,  to  implement  our 
proprietary  manufacturing  process  which  is  designed  to  improve  profit  margins  and  provide 
adequate manufacturing capacity to support future growth and ensure quality control. If Initiative 
297  presents  a  strategic  roadblock  to  the  Company,  IsoRay  plans  to  construct  a  permanent 
manufacturing facility in another state. Working with leading scientists, IsoRay intends to design 
and create a proprietary separation process to manufacture enriched barium, a key source material 
for 131Cs, to ensure adequate supply and greater manufacturing efficiencies.  
Introduce  Cesium-131  therapies  for  other  cancers.  IsoRay  intends  to  partner  with  other 
companies  to  develop  the  appropriate  delivery  technology  and  therapeutic  delivery  systems  for 
treatment  of  other  solid  tumors  such  as  breast,  lung,  liver,  pancreas,  neck,  and  brain  cancer. 
IsoRay’s management believes that the first major opportunities may be for the use of Cesium-
131 in adjunct therapy for the treatment of residual lung and breast cancers. 

(cid:131) 

(cid:131)  Support  clinical  research  and  sustained  product  development.  The  Company  plans  to  structure 
and support clinical studies on the therapeutic benefits of Cs-131 for the treatment of solid tumors 
and  other  patient  benefits.  We  are  and  will  continue  to  support  clinical  studies  with  several 
leading  radiation  oncologists  to  clinically  document  patient  outcomes,  provide  support  for  our 
product  claims  and  compare  the  performance  of  our  seeds  to  competing  seeds.  IsoRay  plans  to 
sustain  long-term  growth  by  implementing  research  and  development  programs  with  leading 
medical  institutions  in  the  U.S.  to  identify  and  develop  other  applications  for  IsoRay’s  core 
radioisotope technology. 

Management  believes  there  is  a  large  and  growing  addressable  market  for  IsoRay’s  products.  Several 
factors  appear  to  contribute  to  the  increasing  popularity  of  the  brachytherapy  procedure.  Long-term 
survival  data  are  now  available  for  brachytherapy  (other  than  with  respect  to  treatment  from  Cs-131 
seeds). Brachytherapy has become the treatment of choice for not only early-stage prostate cancer but is 
now  being  considered  for  treatment  of  fast  growing,  aggressive  tumors.  For  the  treatment  of  prostate 
cancer,  seed  brachytherapy  is  now  more  common  than  surgery  (radical  prostatectomy).  Seed 
brachytherapy has significant advantages over competing treatments including lower cost, better survival 
data,  fewer  side  effects,  a  faster  recovery  time  and  the  convenience  of  an  outpatient  procedure  that 
generally lasts 45 minutes. Over 60,000 procedures were forecasted to occur in the U.S. in 2005. At the 
June 30, 2006 Cs-131 seed price of $55, this represents a potential $330 million market for seeds that is 
forecast  to  grow  substantially  by  2009  according  to  a  recent  market  survey  performed  by  Frost  & 
Sullivan, a nationally recognized market research firm. IsoRay’s management believes that the 131Cs seed 
will  add  incremental  growth  to  the  existing  brachytherapy  seed  market  as  physicians  who  are  currently 
reluctant  to  recommend  brachytherapy  for  their  prostate  patients  due,  in  part,  to  side  effects  caused  by 
longer-lived isotopes, become comfortable with the shorter half-life of 131Cs, and the anticipated reduction 
of side effects.  

9 

 
 
  
  
 
  
Products

IsoRay  markets  the  Cesium-131 seed  and  intends  to  market  other  radioactive  isotopes  in  the  future. 
Additionally, it will attempt to create a market, primarily in clinical trials, for the liquid Cs-131 isotope, 
which is created in the production of IsoRay’s 131Cs seed. 

Cs-131 Seed Product Description and Use in Cancer Treatment

Brachytherapy  seeds  are  small  devices  that  deliver  therapeutic  radiation  directly  to  tumors.  Each  seed 
contains  a  radioisotope  sealed  within  a  welded  titanium  capsule.  In  prostate  cancer  procedures, 
approximately  85  to  135  seeds  are  permanently  implanted  in  a  45-minute  outpatient  procedure.  The 
isotope decays over time, and the seeds become inert.  The seeds may be used as a primary treatment or in 
conjunction with other treatment modalities such as external beam radiation therapy, chemotherapy, or as 
treatment for residual disease after excision of primary tumors. 

Significant  advantages  of  brachytherapy  over  competing  treatments  include:  fewer  side  effects  (the 
likelihood of impotence and incontinence is reduced when seeds are used to treat prostate cancer); short, 
convenient outpatient procedure (typically 45 minutes); faster recovery time (days vs. weeks); lower cost 
than  other  treatment  modalities;  higher  cure  rates  for  solid  tumors;  less  pain;  and  overall  considerably 
better  quality  of  life.  The  primary  disadvantage  of  brachytherapy  is  subjecting  the  human  body  to 
radiation  and  the  side  effects  of  radiation.  Physician  errors  in  seed  placement  and  the  number  of  seeds 
implanted  may  also  result  in  the  failure  to  eradicate  the  cancer  or  in  negative  side  effects  from  over-
radiation of certain tissues in the body. 

A diagram of the IsoRay seed appears in Figure 1. The seed contains an x-ray opaque marker surrounded 
by a ceramic substrate to which the isotope is chemically attached. The seed core is placed in a titanium 
tube and precision laser welded to form a hermetically sealed source of therapeutic radiation suitable for 
permanent implantation. The x-ray marker allows the physician to accurately determine seed placement 
within the tumor. 

Figure 1:  Cross section of  Cs seed

131

Competitive Advantages of Cs-131

Management  believes  that  131Cs  has  specific  clinical  advantages  for  treating  cancer  over  I-125  and  Pd-
103,  the  other  isotopes  currently  used  in  brachytherapy  seeds.  The  table  below  highlights  the  key 
differences of the three seeds. The Company believes that the short half-life, high-energy characteristics 
of  131Cs  will  increase  industry  growth  and  facilitate  meaningful  penetration  into  the  treatment  of  other 
forms of cancer such as breast cancer. 

10 

  
 
 
 
 
 
 
 
  
 
 
 
 
 
Brachytherapy Isotope Comparison

Half Life
Avg. Energy 
Dose Delivery
Total Dose
Anisotropy Factor*
*Degree of symmetry of therapeutic dose, a factor of 1.00 indicates symmetry.  
+KeV = kiloelectron volt, a standard unit of measurement for electrical energy. 

Palladium-103
17.5 days 
21 KeV+
90% in 58 days 
125 Gy 
.877 (TheraSeed® 2000) .930 (OncoSeed® 6711) 

Iodine-125
60 days 
28.5 KeV+
90% in 204 days 
145 Gy 

Cesium-131
9.7 Days 
30.4 KeV+
90% in 33 days 
115 Gy 
.969 

Shorter half-life. The Company believes that Cesium-131’s shorter half-life of 9.7 days will prove to have 
greater  biological  effectiveness,  will  mitigate  the  negative  effects  of  long  radiation  periods  on  healthy 
tissue  and  will  reduce  the  duration  of  any  side  effects.  A  shorter  half-life  produces  more  intense 
therapeutic radiation over a shorter period of time and may reduce the potential for cancer cell survival 
and  tumor  recurrence.  Radiobiological  studies  indicate  that  shorter-lived  isotopes  are  more  effective 
against  faster  growing  tumors  (Dicker,  et.  al.,  Semin.  Urol.  Onc.  18:2,  May  2000).  Other  researchers 
conclude that “half-lives in the approximate range 4-17 days are likely to be significantly better for a wide 
range of tumor types for which the radiobiologic characteristics may not be precisely known in advance.” 
(Armpilia CI, et. al., Int. J. Rad. Oncol. Biol. Phys. 55:2, February 2003). 

Higher energy. The Cs-131 isotope average decay energy of 30.4 KeV (versus 21 KeV for Pd-103 and 
28.5  KeV  for  I-125)  generates  a  therapeutic  radiation  field  that  extends  beyond  the  current  dosimetry 
reference point of 1 cm. Pd-103 seeds emit radiation that does not penetrate as far in tissue (up to 40% 
lower than Cs-131). To compensate for this more Pd-103 seeds are required to attain the equivalent dose 
as if Cs-131 seeds were used. This increase in the number of seeds implanted increases the time and cost 
required  to  perform  Pd-103-based  procedures.  The  lower  energy  from  103Pd  seeds  may  also  result  in 
greater non-uniformity of the implant dose as dose rates near the surface of each seed must be higher to 
compensate for lower doses at greater distances from each seed. The high energy of Cs-131 can result in 
radiation  toxicity  if  the  dosage  is  not  properly  calculated  by  the  implanting  physician  and  staff  but  the 
higher energy of Cs-131 does make the isotope more “forgiving” for treatment planning purposes. 

Reduced side effects. Because the IsoRay  131Cs seed device delivers a highly concentrated and confined 
dose  of  radiation  directly  to  the  prostate,  healthy  surrounding  tissues  and  organs  are  exposed  to  less 
radiation than with other treatments. Management believes this should result in fewer and less severe side 
effects and complications than may be incurred with other conventional therapies. 

Figure 2:  Cs-131 seed Autoradiograph 

Shape of radiation field. The shape of the radiation field generated by a 131Cs seed is more uniform than 
most  brachytherapy  seed  designs,  and  this  uniformity  may  result  in  better  radiation  dose  coverage  and 
improved  therapeutic  effectiveness.  Figure  2  shows  an  autoradiograph  (film  exposed  by  radiation  from 
the seed itself) of an IsoRay seed, which shows this uniformity of the radiation field that is expected to 
result in better radiation dose coverage. IsoRay has conducted extensive computer modeling and testing 
11 

 
 
  
  
  
 
 
  
 
 
 
of  the  seed  design.  The  IsoRay  seed  has  passed  all  Nuclear  Regulatory  Commission  (“NRC”) 
requirements for sealed radioactive sources. Dose uniformity was tested and the results compared well to 
those  predicted  by  industry  standard  computer  modeling  techniques.  In  the  third  quarter  of 2002,  seeds 
were  sent  to  the  National  Institute  for  Standards  and  Technology  for  calibration,  and  have  undergone 
dosimetry testing according to American Association of Physicists in Medicine (“AAPM”) protocols. The 
results  of  these  tests  were  compiled  in  IsoRay’s  510(k)  submission  to  the  FDA  and  were  subsequently 
published  in  the  June  2004  issue  of  Medical  Physics.  The  results  of  these  tests  showed  superior  dose 
characteristics relative to the leading I-125 and Pd-103 seeds. 

Reduced costs. The characteristics of 131Cs seeds described above may result in the use of 10%-30% less 
seeds per procedure, compared to other isotopes, thereby reducing the total physical radiation dose to the 
patient and reducing the costs of the procedure for the third-party payers and the patient.  

Yttrium 90 

Since formation of the Company, management had intended to introduce a second product, Yttrium 90, 
sometime  in  2006.  However,  management  now  intends  to  focus  all  of  its  efforts  on  manufacturing  and 
marketing  Cs-131  as  it  now  believes  that  Yttrium  90  will  require  far  too  much  capital  and  distract 
management from its core business at a time when it believes it can gain valuable market share for Cs-
131.  

Cs-131 Manufacturing Process

Cs-131 is a radioactive isotope that can be produced by the neutron bombardment of Barium-130. When 
Ba-130 is put into a nuclear reactor it becomes Ba-131, the radioactive material that is the parent isotope 
of Cs-131. The overall process includes the following: 

(cid:131) 

(cid:131) 

Isotope Generation. The radioactive isotope Cs-131 is normally produced by placing a quantity of 
stable  non-radioactive  barium  (ideally  pure  Ba-130)  into  the  neutron  flux  of  a  nuclear  reactor. 
The irradiation process converts a small fraction of this material into a radioactive form of barium 
(Ba-131). The Ba-131 decays by electron capture to the radioactive isotope of interest (Cs-131). 
Due  to  the  short  half-life  of  both  the  Ba-131  and  Cs-131  isotopes,  potential  suppliers  must  be 
capable of removing irradiated materials from the reactor core on a routine basis for subsequent 
processing  to  produce  ultra-pure  Cs-131.    The  Company  has  identified  more  than  five  reactor 
facilities  in  the  U.S.,  Europe  and  the  former  Soviet  Union  that  are  capable  of  meeting  these 
requirements. As of the date of this report, IsoRay has agreements in place with two suppliers of 
irradiated  Ba-131  or  Cs-131.  The  Company’s  agreement  with  Russia’s  Institute  of  Nuclear 
Materials  (which  commenced  as  of  August  25,  2005  and  ends  August  25,  2012)  allows  the 
Company to purchase irradiated Ba-131 for $300.00 per Curie of the isotope. The projected value 
of  the  agreement  over  its  term  is  $30,000,000  with  $300,000  worth  of  isotope  projected  to  be 
delivered in the first full year of production, although neither of these amounts are obligations to 
purchase any given quantity of the isotopes in a particular time period. Through June 30, 2006, 
the Company had paid approximately $74,000 to the Institute of Nuclear Materials. In addition, 
the  Company  is  engaged  in  the  development  of  a  barium  enrichment  device  that,  if  successful, 
should reduce the cost of producing Cs-131 while maintaining the purity and consistency required 
in the end product. 
Isotope Separation and Purification. Upon irradiation of the barium feedstock, the Ba-131 begins 
decaying  to  Cs-131.  At  pre-determined  intervals  the  Cs-131  produced  is  separated  from  the 
barium  feedstock  and  purified  using  a  proprietary  radiochemical  separations  process  (patent 
applied for). Due to the high-energy decay of Ba-131, this process is performed under stringent 
radiological controls in a highly shielded isolator or “hot cell” using remote manipulators. After 
separating Cs-131 from the energetic Ba-131, subsequent seed processing may be performed in 
locally  shielded  fume  hoods  or  glove  boxes.  If  enriched  barium  feedstock  is  used,  the  residual 
barium remaining after subsequent Cs-131 separation cycles (“milkings”) will be recycled back to 
the  reactor  facility  for  re-irradiation.  This  material  will  be  recycled  as  many  times  as 

12 

 
 
  
 
 
 
 
 
(cid:131) 

economically feasible, which should make the process  more cost  effective. As an alternative  to 
performing  the  Cs-131  separation  in our  own  facilities,  IsoRay may  enter  into  agreements  with 
other entities to supply “raw” Cs-131 by performing the initial barium/cesium separation at their 
facilities, followed by final purification at IsoRay’s facility. 
Internal  Seed  Core  Technology. The  purified  Cs-131  isotope  is  incorporated  into  an  internal 
assembly that contains a binder, spacer and a gold X-ray marker. This internal core assembly is 
subsequently  inserted  into  a  titanium  case.  The  dimensional  tolerance  for  each  material  is 
extremely important. Several carrier materials and placement methods have been evaluated, and 
through a process of elimination, we have developed favored materials and methods during our 
laboratory testing. The equipment necessary to produce the internal core includes accurate cutting 
and  gauging  devices,  isotope  incorporation  vessels,  reaction  condition  stabilization  and 
monitoring systems, and tools for placing the core into the titanium tubing prior to seed welding. 

(cid:131)  Seed Welding. Following production of the internal core and placement into the titanium capsule, 
each  seed  is  laser  welded  to  produce  a  sealed  radioactive  source  and  biocompatible  medical 
device.  This  manufacturing  technology  requires:  accurate  placement  of  seed  components  with 
respect  to  the  welding  head,  accurate  control  of  welding  parameters  to  ensure  uniform 
temperature and depth control of the weld, quality control assessment of the weld integrity, and 
removal of the finished product for downstream processing or rejection of unacceptable materials 
to waste. Inspection systems are capable of identifying and classifying these variations for quality 
control  and  to  ensure  low  scrap  rates.  Finally,  the  rapid  placement  and  removal  of  components 
from the welding zone affects overall product throughput. 

(cid:131)  Quality  Control. We  have  established  procedures  and  controls  to  meet  all  FDA  and  ISO 
9001:2000 Quality Standards.  Product quality and reliability will be secured by utilizing multiple 
sources of irradiation services, feedstock material, and other seed manufacturing components.  An 
intensive production line preventive maintenance and spare parts program will be implemented. 
Also,  an  ongoing  training  program  will  be  established  for  customer  service  to  ensure  that  all 
regulatory requirements for the FDA, DOT and applicable nuclear radiation and health authorities 
are fulfilled.  

The Company has implemented a just-in-time production  process that is keenly responsive to customer 
input and orders to ensure that individual customers  receive a higher level of customer service from us 
than  from  existing  seed  suppliers  who  have  the  luxury  of  longer  lead  times  due  to  longer  half-life 
products. Time from order confirmation to completion of product manufacture can be reduced to several 
working days, including receipt of irradiated barium (from a supplier’s reactor), separation of Cs-131 (at 
our facilities), isotope labeling of the core, and loading of cores into pre-welded titanium “cans” for final 
welding, testing, quality assurance and shipping. 

It  is  up  to  each  physician  to  determine  the  dosage  necessary  for  implants  and  acceptable  dosages  vary 
among physicians. Many of the physicians who order our seeds order more seeds than necessary but wish 
to  assure  themselves  that  they  have  a  sufficient  amount.  Upon  receipt  of  an  order,  the  Company  either 
delivers the seeds from its facility directly to the physician using Federal Express or sends the order to an 
independent preloading service which  delivers the seeds  preloaded into needles just prior to implant. If 
the implant is postponed or rescheduled, the short half-life of the seeds makes them unsuitable for use and 
therefore they must be re-ordered. The Company's historical profit margin on seeds has been sufficient to 
justify unusable inventory and  management has  monitored the amount of unused inventory carefully to 
review its calculations of wastage in its business plans. 

Automated Manufacturing Process

IsoRay has held discussions with leading designers and manufacturers of automated seed manufacturing 
equipment that have manufactured, installed and deployed automated production lines in Europe and the 
United  States.  In  addition,  IsoRay  engaged  in  preliminary  discussions  with  another  seed  manufacturer 
regarding  obtaining  an  existing  automated  seed  production  line.  Based  on  technical  evaluations  and  on 
site  reviews  of  both  options,  IsoRay  elected  to  automate  its  current  manufacturing  process  in  phases. 
Current production rates with IsoRay’s semi automated seed welding equipment exceed those attainable 
13 

 
 
  
  
  
 
with fully automated lines. Phased implementation of automation is expected to be less costly than fully 
automated  production  lines  and  will  benefit  IsoRay  by  reducing  labor  costs  and  helping  to  ensure 
consistent manufacturing quality.   

Manufacturing Facility

The  initial  production  of  the  IsoRay  Cs-131  brachytherapy  seed  commenced  at  PNNL  in  2004.  IsoRay 
has  signed  a  lease  agreement  and  completed  construction  (tenant  improvements)  of  a  new  interim 
production  facility  in  Richland,  Washington  that  received  final  regulatory  approval  on  October 6,  2005 
and began radioactive production operations shortly thereafter. The Company is also considering another 
state  as  a  location  for  a  future  facility,  either  as  the  Company’s  sole  manufacturing  facility  or  as  a 
secondary  production  facility.  No  agreements  have  been  reached  for  any  possible  facilities  outside  of 
Washington. 

Isotope Testing in Idaho 

On December 14, 2005, IsoRay and Idaho’s Advanced Test Reactor (“ATR”) entered into a collaboration 
and  partnership  agreement  for  the  design,  analysis  and  fabrication  of  a  capsule  containing  barium 
carbonate, to be irradiated at the ATR and then shipped to IsoRay for processing and analysis of the 131Cs 
product.  As an adjunct to this testing, IsoRay and the Pocatello Development Authority entered into an 
Economic Development Agreement, dated December 14, 2005, under which the Pocatello Development 
Authority provided IsoRay with $200,000 (subject to repayment under certain conditions) to use toward 
the  cost  of  testing  at  the  ATR.   During  July  2006,  several  capsules  were  irradiated  and  shipped  to 
IsoRay’s  PIRL  facility  for  analysis.   The  results  of  the  analyses  indicate  the  capsule  performed  as 
designed and that a planned capsule shuttle system will provide adequate conditions for 131Cs production 
that will enhance IsoRay’s overall production capacity. 

Repackaging Services

Most  brachytherapy  manufacturers  offer  their  seed  product  to  the  end  user  packaged  in  four  principal 
configurations provided in a sterile or non-sterile package depending on the customer’s preference. These 
include:  

(cid:131)  Loose seeds 
(cid:131)  Pre-loaded needles (loaded with 3 to 5 seeds and spacers) 
(cid:131)  Strands of seeds (consists of seeds and spacers in a biocompatible “shrink wrap”)  
(cid:131)  Pre-loaded  Mick  cartridges  (fits  the  Mick  applicator  -  seed  manufacturers  usually  load  and 

sterilize Mick cartridges in their own manufacturing facilities) 

No  single  package  configuration  dominates  the  market  at  this  point.  Market  share  estimates,  based  on 
internal  management  studies  of  the  market,  for  each  of  the  four  packaging  types  are:  loose  seeds 
(negligible amount), Mick cartridges (20%), pre-loaded needles (30%) and strands (50%). Market trends 
indicate  significant  movement  toward  the  stranded  configuration,  as  there  are  some  clinical  data 
suggesting less potential for post-implant seed migration when a stranded configuration is used. 

The  role  of  the  preloading  service  is  to  package,  assay  and  certify  the  contents  of  the  final  product 
configuration  shipped  to  the  customer.  A  commonly  used  method  of  providing  this  service  is  through 
independent radiopharmacies such as Anazao Healthcare and Advanced Care Medical Inc. Manufacturers 
send loose seeds along with the physician's instructions to the radiopharmacy who, in turn, loads needles 
and/or strands the seeds according to the doctor's instructions. These pharmacies then sterilize the product 
and certify the final packaging prior to shipping directly to the end user. 

IsoRay has held discussions with the major independent radiopharmacies and determined the additional 
time  required  for  delivery of  loose  seeds  to  an  off-site  radiopharmacy  for  subsequent  assay,  preloading 

14 

 
 
  
  
 
 
 
 
 
and sterilization creates additional loss of our isotope due to decay and is prohibitive on a long-term basis. 
However, to increase sales in the near-term we are using these services until our own custom preloading 
operation comes fully on-line in 2006. On March 1, 2006, the Company entered into a Service Agreement 
with  Advanced  Care  Medical,  Inc.  for  preloading  services.  The  term  of  the  Service  Agreement  is  one 
year,  with  automatic  one  year  extensions  unless  terminated,  and  prices  vary  from  $6-18  per  seed 
depending on how the seeds are packaged.  In late March 2006, the Company’s stranding service became 
operational  but  stranding  activity  was  suspended  pending  FDA  510(k)  clearance  of  preloaded  seed 
configurations  as  devices  rather  than  convenience  kits  for  seeds.    The  510(k)  filing  for  the  stranding 
activity was submitted to the FDA in August 2006 and the Company expects to receive clearance in the 
second quarter of fiscal 2007.  

The Company currently loads Mick cartridges in our own facility which in recent months accounted for 
more than 65% of total seed orders. The Company has retained a consultant to assist with implementation 
of the custom preloading service and expects to begin offering its seed in all four of the commonly used 
packaging  configurations  to  the  rest  of  its  customer  base  within  forty-five  to  sixty  days,  pending  FDA 
510(k)  clearance  of  selected  preloaded  seed  configurations.  Providing  this  service  in-house  will  reduce 
the current cycle time for any given customer order by three to four days by eliminating the need to ship 
loose seeds to a third-party provider. This reduction in cycle time will eliminate approximately 25% loss 
in isotope activity due to radioactive decay. The cost of priority overnight shipment of each order of seeds 
to  a  third-party  provider  is  also  eliminated.  However,  we  will  continue  to  utilize  the  independent 
radiopharmacies in the future both as a backup to our own preloading operation and to handle periodic 
increases in demand.  

Independent radiopharmacies usually provide the final packaging of the product delivered to the end user. 
This eliminates the opportunity for reinforcing the "branding" of our seed product. By providing its own 
repackaging  service,  the  Company  preserves  the  product  branding  opportunity  and  eliminates  any 
concerns related to the handling of its product by a third party prior to delivery to the end user. 

Providing  different  packaging  configurations  adds  significant  value  to  the  product  while  providing  an 
additional  revenue  stream  and  incremental  margins  to  the  Company  through  the  pricing  premiums  that 
can be charged. The end users of these packaging options are willing to pay a premium because of the 
savings  they  realize  by  eliminating  the  need  for  loose  seed  handling  and  loading  capabilities  on  site, 
eliminating  the  need  for  additional  staffing  to  load  and  sterilize  seeds  and  needles,  and  eliminating  the 
expense of additional assaying of the seeds.   

Management estimates the cost of establishing the custom preloading service in its new, leased facility to 
be  approximately  $250,000,  most  of  which  has  already  been  spent  on  capital  equipment.    The  custom 
preloading  area  has  been  created  in  the  facility  and  the  necessary  equipment  has  been  delivered  and 
installed.    Operating  procedures  are  in  place,  staff  members  have  been  trained,  and  process  validation 
activities have been completed. Technicians have been added to the staff to handle the seed loading and 
stranding operations.  As the Company is not currently performing the stranding function pending FDA 
510(k) clearance, these staff members are currently being utilized in our seed production process. PNNL 
will  continue  to  provide  independent  third-party  assay  of  the  seeds  for  the  foreseeable  future.  Our 
customer  service  staff  will  provide  assistance  with  shipping,  documentation  and  tracking  of  all  orders 
from the repackaging service to the end user.

Barium Enrichment Device

Barium-130  is  the  original  source  material  for  Cs-131.  When  Ba-130  is  put  into  a  nuclear  reactor  it 
becomes  Ba-131,  the  radioactive  material  that  is  the  parent  isotope  of  Cs-131.  Barium  metal  found  in 
nature contains only 0.1% of Ba-130 with six other isotopes making up the other 99.9%. As part of its 
manufacturing  process  the  Company  intends  to  develop  a  barium  enrichment  device  that  should  create 
“enriched barium” with a higher concentration of the Ba-130 isotope than is found in naturally occurring 
barium.  In  addition  to  creating  a  higher  purity  Ba-130,  which  translates  into  higher  purity  Cs-131,  a 

15 

 
 
 
 
barium enrichment device will result in higher yields of Cs-131. The Company has identified sources of 
enriched  barium,  including  in  the  former  Soviet  Union,  that  we  are  using  until  the  barium  enrichment 
device is developed. 

Marketing and Sales

Marketing Strategy

The Company intends to position Cs-131 as the isotope of choice for prostate brachytherapy. Based on 
preliminary  clinical  studies,  management  believes  there  is  no  apparent  clinical  reason  to  use  other 
isotopes when Cesium-131 is available. The advantages associated with a higher energy and shorter half-
life  isotope  are  generally  accepted  within  the  clinical  community  and  the  Company  intends  to  help 
educate potential patients about the clinical benefits a patient would experience from the use of Cs-131 
for  their  brachytherapy  seed  treatment.  The  potential  negative  effects  of  the  prolonged  radiation  times 
associated with the long half-life of Iodine-125 make this isotope less attractive than Cesium-131.  

We  target  competing  isotopes  as  our  principal  competition  rather  than  the  various  manufacturers  and 
distributors of these isotopes. In this way, the choice of brachytherapy isotopes will be less dependent on 
the  name  and  distribution  strengths  of  the  various  iodine  and  palladium  manufacturers  and  distributors 
and more dependent on the therapeutic benefits of Cs-131. The Company focuses the purchasing decision 
on  the  advantages  and  functionality  of  the  Cs-131  isotope  while  seeking  to  educate  the  cancer  patient 
about these clinical benefits. 

The professional and patient market segments each play a role in the ultimate choice of cancer treatment 
and the specific isotope chosen for seed brachytherapy treatment. The Company is tailoring its marketing 
message to each audience. IsoRay has retained an advertising agency in the Seattle area to assist with its 
marketing  communication  program.  The  agency  is  coordinating  the  creation  and  distribution  of  all 
advertising material and work with the print and visual media.  

We are seeking to promote the advantages of Cs-131’s unique combination of high energy and short half-
life  within  the  clinical  market.  Because  we  believe  there  is  no  apparent  clinical  reason  to  choose  other 
isotopes over cesium, we have and will continue to target those high volume users of other isotopes as our 
implant sites. We also emphasize the prolonged radiation times and the high doses of radiation given to 
the  patient  by  the  iodine  isotope  and  the  possible  negative  effects  of  this  prolonged  radiation  to  the 
adjacent  healthy  tissues.  We  believe  that  this  is  an  important  marketing  message  because  clinicians 
generally agree the radiation given by Iodine has little or no clinical benefit after 120 to 150 days.  

To  promote  our  products  to  the  clinical  and  professional  audience,  we  are  using  a  combination  of 
marketing  messages to  appear in print and visual  media. Past and planned marketing activities include: 
attendance  at  the  major  brachytherapy-related  clinical  conferences  to  exhibit  our  products  and  provide 
marketing  information  for  annual  meetings,  conferences  and  other  forums  of  the  various  professional 
societies;  print  advertising  in  brachytherapy  clinical  journals;  and  promoting  clinical  presentations  by 
experts in the field at major conferences. 

In today’s U.S. health care market patients are more informed and involved in the management of their 
health  and  any  treatments  required.  Many  physicians  relate  incidents  of  their  patients  coming  for 
consultations armed with articles researched on the Internet and other sources describing new treatments 
and medications. In many cases, these patients are demanding a certain therapy or drug and the physicians 
are complying when medically appropriate.  

Because  of  this  market  factor,  we  also  promote  our  products  directly  to  the  general  population.  The 
audience targeted will be the prostate cancer patient, his spouse, family and care givers. The marketing 
message to this segment of the market emphasizes the specific advantages of Cs-131, including fewer side 
effects, less total radiation, and shorter period of radiation. The Company is targeting this market through 

16 

 
 
 
 
 
 
 
 
 
 
 
its  website,  located  at  www.isoray.com,  advertising  in  magazines  read  by  prostate  cancer  patients  and 
their care givers, and through patient advocacy efforts. 

Another key element of our strategy is to validate and support all product claims with well-designed and 
executed clinical studies that support the efficacy and positive patient outcomes of our Cs-131 seed. We 
intend to sponsor physician-directed studies that will compare the performance of our seeds to Pd-103 and 
I-125 seeds. During the remainder of 2006 and into 2007, IsoRay plans to continue its collaboration with 
leading physicians to develop clinical data on the efficacy of Cs-131 seeds. Noted contributors from the 
medical physics community will be consulted regarding the benefits of brachytherapy using shorter half-
life,  improved  dosimetry,  and  higher  decay  energy  seeds.  Articles  will  be  submitted  to  professional 
journals  such  as  Medical  Physics  and  the  International  Journal  of  Radiation Oncology,  Biology,  and 
Physics.  

Sales and Distribution

According  to  a  recent  industry  survey,  approximately  2,000  hospitals  and  free  standing  clinics  are 
currently offering  radiation  oncology  services  in  the  United  States.  Not  all  of  these  facilities  offer  seed 
brachytherapy  services.  These  institutions  are  staffed  with  radiation  oncologists  and  medical  physicists 
who provide expertise in radiation therapy treatments and serve as consultants for urologists and prostate 
cancer patients. We target the radiation oncologists and the medical physicists as well as urologists as key 
clinical decision makers in the type of radiation therapy offered to prostate cancer patients.  

IsoRay has a direct sales organization to introduce Cs-131 to radiation oncologists and medical physicists. 
During 2006, IsoRay expanded its sales force to four experienced individuals. By hiring experienced and 
successful brachytherapy sales people, the Company reduces the risk of delay in penetrating the market 
due to a lack of knowledge of the industry or unfamiliarity with the key members of the brachytherapy 
community. 

The  initial  response  to  our  new  isotope  from  prominent  radiation  oncologists,  medical  physicists  and 
urologists in the US has been very positive. As of September 1, 2006, the Company had supplied the 131Cs 
seed to 27 well-known implant centers strategically located throughout the U.S. 

The  Company  will  expand  its  U.S.  sales  force  as  it  expands  the  customer  base.    If  the  Company 
implements its plans to expand outside the U.S. market, it plans to use established distributors in the key 
markets in these other countries. This strategy should reduce the time and expense required to identify, 
train  and  penetrate  the  key  implant  centers  and  establish  relationships  with  the  key  opinion  leaders  in 
these  markets.  Using  established  distributors  also  should  reduce  the  time  spent  acquiring  the  proper 
radiation handling licenses and other regulatory requirements of these markets. 

Pricing

Payment  for  IsoRay  products  comes  from  third-party  payers  including  Medicare/Medicaid  and  private 
insurance  groups.  These  payers  reimburse  the  hospitals  and  clinics  via  well-established  payment 
procedures. On October  31, 2003, as a result of IsoRay’s predecessor’s filing for an Additional Device 
Category, CMS (Centers for Medicare and Medicaid Services) approved a HCPCS/CPT code for Cs-131 
brachytherapy seeds of $44.67 per seed. This is the same price as awarded to Pd-103 seeds, and compares 
favorably  to  the  $37.34  price  granted  to  I-125  seeds.  Medicare  is  the  most  significant  U.S.  payer  for 
prostate brachytherapy services, and is the payer in approximately 70% of all U.S. prostate brachytherapy 
cases. CMS reviews and adjusts outpatient reimbursement on a periodic and ad hoc basis, but no changes 
are expected for 2006. As of July 31, 2005, the price for our loose seeds was $55 per seed but we plan to 
increase this price to $59.00 as of October 1, 2006. 

Prostate brachytherapy is typically performed in an outpatient setting, and as such, is covered by the CMS 
Outpatient  Prospective  Payment  System.  In  January  2004,  brachytherapy  procedure  prices  were 
unbundled by CMS, allowing itemized invoicing for seeds with no limit on the number of seeds used per 
17 

 
 
 
 
 
 
 
 
 
 
 
procedure, and CMS currently reimburses hospitals and clinics for their seed purchases on a cost basis. 
Other insurance companies have followed these CMS changes. With the new reimbursement structure and 
industry consolidation, management believes that prices of brachytherapy seeds will stabilize and increase 
over the next few years.  

When charges for the seeds are correctly submitted in the appropriate format to CMS, 100% of the total 
cost of the seeds is reimbursed to the hospital or clinic by CMS.  

Other Information

Customers

Customers representing ten percent or more of total Company sales for the twelve months ended June 30, 
2006 include: 

Community Hospital of Los Gatos 
Chicago Prostate Cancer Center 
Mills Peninsula Health Center 

Los Gatos, CA 
Westmont, IL 
San Mateo, CA 

20.1% of revenue 
18.7% of revenue 
10.4% of revenue 

The loss of any of these significant customers would have a temporary adverse effect on the Company’s 
revenues, which would continue until the Company located new customers to replace them. 

Proprietary Rights

The  Company  relies  on  a  combination  of  patent,  copyright  and  trademark  laws,  trade  secrets,  software 
security  measures,  license  agreements  and  nondisclosure  agreements  to  protect  its  proprietary  rights. 
Some of the Company’s proprietary information may not be patentable. 

The  Company  intends  to  vigorously  defend  its  proprietary  technologies,  trademarks,  and  trade  secrets. 
Members of management, employees, and certain equity holders have previously signed non-disclosure, 
non-compete agreements, and future employees, consultants, advisors, with whom the Company engages, 
and who are privy to this information, will be required to do the same. A patent for the Cesium separation 
and purification process was granted on May 23, 2000 by the U.S. Patent and Trademark Office (USPTO) 
under Patent Number 6,066,302, with an expiration date of May 23, 2020. The process was developed by 
Lane  Bray,  a  shareholder  of  the  Company,  and  has  been  assigned  exclusively  to  IsoRay.  IsoRay’s 
predecessor  also  filed  for  patent  protection  in  four  European  countries  under  the  Patent  Cooperation 
Treaty. Those patents have been assigned to IsoRay. 

Our management believes that certain aspects of the IsoRay seed design and construction techniques are 
patentable  innovations.  These  innovations  have  been  documented  in  IsoRay  laboratory  records,  and  a 
patent  application  was  filed  with  the  USPTO  on  November  12,  2003.  Certain  methodologies  regarding 
isotope  production,  separation,  and  seed  manufacture  are  retained  as  trade  secrets  and  are  embodied  in 
IsoRay’s  procedures  and  documentation.  In  June  and  July  of  2004,  three  patent  applications  were  filed 
relating  to  methods  of  deriving  Cs-131  developed  by  IsoRay  employees.  The  Company  is  currently 
working on developing and patenting additional methods of deriving Cs-131 and other isotopes.  

There  are  specific  conditions  attached  to  the  assignment  of  the  Cs-131  patent  from  Lane  Bray.  In 
particular,  the  associated  Royalty  Agreement  provides  for  1%  of  gross  profit  payment  from  seed  sales 
(gross seed sales price minus direct production cost) to Lane Bray and 1% of gross profit from any use of 
the Cs-131 process patent for non-seed products. If IsoRay reassigns the Royalty Agreement to another 
company,  these  royalties  increase  to  2%.  The  Royalty  Agreement  has  an  anti-shelving  clause  which 
requires IsoRay to return the patent if IsoRay permanently abandons sales of products using the invention.  

Effective  August  1,  1998,  Pacific  Management  Associates  Corporation  (PMAC)  transferred  its  entire 
right,  title  and  interest  in  an  exclusive  license  agreement  with  Donald  Lawrence  to  IsoRay,  LLC  (a 

18 

 
 
  
  
  
 
 
 
 
 
  
  
  
 
 
 
predecessor company) in exchange for a membership interest. The license agreement was transferred to 
IsoRay through a series of mergers and the reverse acquisition.  

The terms of the license agreement require the payment of a royalty based on the Net Factory Sales Price, 
as  defined  in  the  agreement,  of  licensed  product  sales.  Because  the  licensor’s  patent  application  was 
ultimately  abandoned,  only  a  1%  “know-how”  royalty  based  on  Net  Factory  Sales  Price,  as  defined, 
remains applicable. To date, there have been no product sales incorporating the licensed technology and 
there  is  no  royalty  due  pursuant  to  the  terms  of  the  agreement.  Management  believes  that  because  this 
technology is not presently being used and believes it will not be used in the future that no royalties will 
be paid under this agreement.  

Research And Development

From  inception  (December  17,  2001)  through  June  30,  2006,  IsoRay  and  its  predecessor  companies 
incurred more than $2.25 million in costs related to research and development activities. The Company 
expects  to  continue  to  have  employees  working  on  activities  that  will  be  classified  as  research  or 
development for the foreseeable future.  

Government Regulation

The Company's present and future intended activities in the development, manufacture and sale of cancer 
therapy products are subject to extensive laws, regulations, regulatory approvals and guidelines. Within 
the  United  States,  the  Company's  therapeutic  radiological  devices  must  comply  with  the  U.S.  Federal 
Food, Drug and Cosmetic Act, which is enforced by the FDA. The Company is also required to adhere to 
applicable  FDA  regulations  for  Good  Manufacturing  Practices,  including  extensive  record  keeping  and 
periodic inspections of manufacturing facilities. IsoRay's predecessor obtained FDA 510(k) clearance in 
March 2003 to market the IsoRay 131Cs seed for the treatment of localized solid tumors. 

Specifically,  in  the  United  States,  the  FDA  regulates,  among  other  things,  new  product  clearances  and 
approvals to establish the safety and efficacy of these products. We are also subject to other federal and 
state  laws  and  regulations,  including  the  Occupational  Safety  and  Health  Act  and  the  Environmental 
Protection Act.  

The Federal Food, Drug, and Cosmetic Act and other federal statutes and regulations govern or influence 
the  research,  testing,  manufacture,  safety,  labeling,  storage,  record  keeping,  approval,  distribution,  use, 
reporting, advertising and promotion of such products. Noncompliance with applicable requirements can 
result in civil penalties, recall, injunction or seizure of products, refusal of the government to approve or 
clear  product  approval  applications,  disqualification  from  sponsoring,  or  conducting  clinical 
investigations,  prevent  us  from  entering  into  government  supply  contracts,  withdrawal  of  previously 
approved applications and criminal prosecution.  

Approval  of  new  medical  devices  is  a  lengthy  procedure  and  can  take  a  number  of  years  and  the 
expenditure of significant resources. There is a shorter FDA review and clearance process, the premarket 
notification process, or the 510(k) process, whereby a company can market certain medical devices that 
can  be  shown  to  be  substantially  equivalent  to  other  legally  marketed  devices.  We  have  been  able  to 
achieve market clearance for our 131Cs seed using the 510(k) process.  

In the United States, medical devices are classified into three different categories over which FDA applies 
increasing  levels  of  regulation:  Class I,  Class II  and  Class III.  Most  Class I  devices  are  exempt  from 
premarket  notification  (510(k));  most  Class II  devices  require  premarket  notification  (510(k))  and  most 
Class III devices require premarket approval. Our 131Cs seed is a Class II device and has received 510(k) 
clearance.  

As  a  registered  medical  device  manufacturer  with  the  FDA,  we  are  subject  to  inspection  to  ensure 
compliance with their current Good Manufacturing Practices, or cGMP. These regulations require that we 
19 

 
 
  
  
  
  
  
 
 
  
  
  
and any of our contract manufacturers design, manufacture and service products and maintain documents 
in  a  prescribed  manner  with  respect  to  manufacturing,  testing,  distribution,  storage,  design  control  and 
service activities. Modifications or enhancements that could significantly affect the safety or effectiveness 
of a device or that constitute a major change to the intended use of the device require a new 510(k) notice 
for any product modification. We may be prohibited from marketing the modified product until the 510(k) 
notice is cleared by the FDA.  

The Medical Device Reporting regulation requires that we provide information to the FDA on deaths or 
serious injuries alleged to be associated with the use of our devices, as well as product malfunctions that 
are likely to cause or contribute to death or serious injury if the malfunction were to recur. Labeling and 
promotional  activities  are  regulated  by  the  FDA  and,  in  some  circumstances,  by  the  Federal  Trade 
Commission.  

As  a  medical  device  manufacturer,  we  are  also  subject  to  laws  and  regulations  administered  by 
governmental  entities  at  the  federal,  state  and  local  levels.  For  example,  our  facility  is  licensed  as  a 
medical  product  manufacturing  facility  in  the  State  of  Washington  and  is  subject  to  periodic  state 
regulatory inspections. Our customers are also subject to a wide variety of laws and regulations that could 
affect the nature and scope of their relationships with us.  

In  the  United  States,  as  a  manufacturer  of  medical  devices  and  devices  utilizing  radioactive  byproduct 
material, we are subject to extensive regulation by not only federal governmental authorities, such as the 
FDA, but also by state and local governmental authorities, such as the Washington State Department of 
Health, to ensure such devices are safe and effective. In Washington State, the Department of Health, by 
agreement with the federal Nuclear Regulatory Commission ("NRC"), regulates the possession, use, and 
disposal  of  radioactive  byproduct  material  as  well  as  the  manufacture  of  radioactive  sealed  sources  to 
ensure compliance with state and federal laws and regulations. Our  131Cs brachytherapy seeds constitute 
both medical devices and radioactive sealed sources and are subject to these regulations.  

Moreover, our use, management and disposal of certain radioactive substances and wastes are subject to 
regulation  by  several  federal  and  state  agencies  depending  on  the  nature  of  the  substance  or  waste 
material. We believe that we are in compliance with all federal and state regulations for this purpose.  

Washington voters approved Initiative 297 in late 2004, which may impose additional restrictions on sites 
at  which  mixed  radioactive  and  hazardous  wastes  are  generated  and  stored,  including  PNNL,  as  it 
prohibits additional mixed radioactive and hazardous waste from being brought to sites, such as PNNL, 
until the existing on-site waste conforms to all state and federal environment laws.  In June 2006, a U.S. 
District  court  judge  ruled  that  Initiative  297  was  unconstitutional  in  its  entirety.    However,  the  state  of 
Washington has indicated that it would appeal the decision.  If this decision is overturned and Initiative 
297 is enforced it could impact our ability to manufacture our seeds, whether at PNNL or elsewhere in the 
State of Washington. 

Seasonality

The  Company  is  now  aware  of  a  seasonal  influence  on  its  business.    During  the  months  of  July  and 
August, physicians take vacations and defer seed implantation surgeries causing a momentary decline in 
revenue which management believes is ultimately realized later. 

Employees

As  of  September  1,  2006,  IsoRay  employed  53  full-time  individuals  and  one  part-time  individual.  The 
Company's  future  success  will  depend,  in  part,  on  its  ability  to  attract,  retain,  and  motivate  highly 
qualified  technical  and  management  personnel.  From  time  to  time,  the  Company  may  employ 
independent  consultants  or  contractors  to  support  its  research  and  development,  marketing,  sales  and 
support  and  administrative  organizations.  None  of  the  Company's  employees  are  represented  by  any 

20 

 
 
 
  
  
  
  
  
  
  
  
collective  bargaining  unit.  IsoRay  estimates  that  successful  implementation  of  its  growth  plan  would 
result in up to 30 additional employees by the end of calendar year 2007. 

Competition

The Company competes in a market characterized by technological innovation, extensive research efforts 
and significant competition.  In general, the IsoRay seed competes with conventional methods of treating 
localized cancer, including, but not limited to, radical prostatectomy and external beam radiation therapy 
which  includes  intensity  modulated  radiation  therapy,  as  well  as  competing  permanent  brachytherapy 
devices.  RP  has  historically  represented  the  most  common  medical  treatment  for  early-stage,  localized 
prostate cancer.  EBRT is also a well-established method of treatment and is widely accepted for patients 
who  represent  a  poor  surgical  risk  or  whose  prostate  cancer  has  advanced  beyond  the  stage  for  which 
surgical  treatment  is  indicated.    Management  believes  that  if  general  conversion  from  these  treatment 
options (or other established or conventional procedures) to the IsoRay seed does occur, such conversion 
will likely be the result of a combination of equivalent or better efficacy, reduced incidence of side effects 
and complications, lower cost, quality of life issues and pressure by health care providers and patients.  

History has shown the advantage of being the first to market a new brachytherapy product.  For example, 
Oncura currently claims nearly 30% of the market with the original I-125 seed.  Theragenics Corp., which 
introduced the original Pd-103 seed, is second with a nearly 30% market share.  The Company believes it 
may obtain a similar and significant advantage by being the first to introduce a Cs-131 seed.  

The  Company’s  patented  Cs-131  separation  process  is  likely  to  provide  us  a  sustainable  competitive 
advantage in this area. Production of Cs-131 also requires specialized facilities (hot cells) that represent 
high cost and long lead time if not readily available. In addition, a competitor would need to develop a 
method for isotope attachment and seed assembly, would need to conduct testing to meet NRC and FDA 
requirements, and would need to obtain regulatory approvals before marketing a competing device. 

Several  companies  have  obtained  regulatory  approval  to  produce  and  distribute  Palladium-103  and 
Iodine-125 seeds, which compete directly with our seed. Six of those companies represent nearly 100% of 
annual  brachytherapy  seed  sales  worldwide:  CR  Bard,  Inc.,  Oncura  (part  of  Galil),  Theragenics  Corp., 
North American Scientific, Inc., Mentor Corp., and Best Medical International, Inc. The top three – CR 
Bard, Inc., Oncura and Theragenics - currently garner over 80% of annual sales.  

It  is  possible  that  three  or  four  of  the  current  I-125  or  Pd-103  seed  manufacturers  (e.g.,  Oncura, 
Theragenics, North American Scientific, etc.) are capable of producing and marketing a Cs-131 seed, but 
none  have  reported  efforts  to  do  so.  Best  Medical  obtained  a  seed  core  patent  in  1992  that  named  10 
different isotopes, including Cs-131, for use in their seeds. Best Medical received FDA 510(k) approval to 
market a Cs-131 seed on June 6, 1993 but has failed to produce any products for sale.  

Additional Growth Opportunities

The Cs-131 isotope has the performance characteristics to be a technological platform for sustained long-
term  growth.  The  most  immediate  opportunities  are  introducing  Cs-131  to  Canada,  Europe  and  other 
international markets, introducing Cs-131-based therapies for other forms of solid tumors focusing first 
on breast tumors, and through the marketing of other radioactive isotopes.  These growth initiatives are in 
the early stages of planning and appear to be significant incremental opportunities.  

The  Company  plans  to  introduce  Cs-131 initially  into  Europe  and  later  into  other  international  markets 
through  partnerships  and  strategic  alliances  with  channel  partners  for  manufacturing  and  distribution. 
Another advantage of the Cs-131 isotope is its potential applicability to other cancers and other diseases. 
Cs-131  has  FDA  approval  to  be  used  for  treatments  for  a  broad  spectrum  of  cancers  including  breast, 
brain,  lung,  and  liver  cancer,  and  the  Company  believes  that  a  major  opportunity  exists  as  an  adjunct 
therapy for the treatment of breast cancer. Preliminary discussions have begun with prominent physicians 
regarding the use of Cs-131-based therapies for the treatment of lung, pancreatic and brain cancer.  There 
21 

 
 
 
 
 
 
 
  
 
 
 
is the opportunity to develop and market other radioactive isotopes to the US market, and to market the 
Cs-131 isotope itself, separate from its use in our seeds. The Company is also in the preliminary stages of 
exploring  alternate  methods  of  delivering  our  isotopes  to  various  organs  of  the  body,  as  it  may  be 
advantageous  to  use  delivery  methods  other  than  a  titanium-encapsulated  seed  to  deliver  radiation  to 
certain organs. 

Risk Factors

Our  Independent  Accountants  Have  Expressed  Doubt  About  Our  Ability  To  Continue  As  A  Going 
Concern.  IsoRay  has  generated  material  operating  losses  since  inception.  We  expect  to  continue  to 
experience  net  operating  losses.  Our  ability  to  continue  as  a  going  concern  is  subject  to  our  ability  to 
obtain  necessary  funding  from  outside  sources,  including  obtaining  additional  funding  from  the  sale  of 
our  securities  or  obtaining  loans  and  grants  from  various  financial  institutions  where  possible.  The 
substantial doubt expressed by IsoRay’s auditors about its ability to continue as a going concern increases 
the difficulty in meeting such goals.  IsoRay began generating revenue in October 2004 and is in the early 
stages  of  marketing  its  IsoRay  131Cs  seed.    IsoRay  has  limited  historical,  operating  or  financial 
information upon which to evaluate its performance.  There can be no assurance that the Company will 
attain profitability.  

Our  Revenues  Depend  Upon  One  Product.  Until  such  time  as  we  develop  additional  products,  our 
revenues depend upon the successful production, marketing, and sales of the IsoRay 131Cs seed.  The rate 
and level of market acceptance of this product may vary depending on the perception by physicians and 
other members of the healthcare community of its safety and efficacy as compared to that of competing 
products, if any; the clinical outcomes of the patients treated; the effectiveness of our sales and marketing 
efforts  in  the  United  States  and  Europe;  any  unfavorable  publicity  concerning  our  product  or  similar 
products; our product’s price relative to other products or competing treatments; any decrease in current 
reimbursement  rates  from  the  Centers  for  Medicare  and  Medicaid  Services  or  third-party  payers; 
regulatory  developments  related  to  the  manufacture  or  continued  use  of  the  product;  availability  of 
sufficient supplies of enriched barium for 131Cs seed production; ability to produce sufficient quantities of 
this  product;  and  the  ability  of  physicians  to  properly  utilize  the  device  and  avoid  excessive  levels  of 
radiation  to  patients.  Because  of  our  reliance  on  this  product  as  the  sole  source  of  our  revenue,  any 
material  adverse  developments  with  respect  to  the  commercialization  of  this  product  may  cause  us  to 
continue to incur losses rather than profits in the future.  

Although Approved To Treat Any Malignant Tissue, Our Sole Product Is Currently Used To Treat One 
Type Of Cancer. Currently, the IsoRay 131Cs seed is used exclusively for the treatment of prostate cancer. 
We believe the 131Cs seed will be used to treat cancers of other sites as well, as is currently the case with 
our competitors’ 125I and 103Pd seeds. However, we believe that clinical data gathered by select groups of 
physicians  under  treatment  protocols  specific  to  other  organs  will  be  needed  prior  to  widespread 
acceptance of our product for treating other cancer sites. If our current and future products do not become 
accepted in treating cancers of other sites, our sales will depend solely on treatment of prostate cancer and 
will require ever increasing market share to increase revenues.  

131

. As of September 1, 2006, the IsoRay 131Cs 
We Have Limited Data On The Clinical Performance Of  Cs
seed has been implanted in over 500 patients. While this number of patients may prevent us from drawing 
statistically  significant  conclusions,  the side  effects  experienced  by  these  patients  were  less  severe  than 
side  effects  observed  in  seed  brachytherapy  with  125I and  103Pd  and  in  other  forms  of  treatment  such  as 
radical prostatectomy These early results indicate that the onset of side effects generally occurs between 
one and three weeks post-implant, and the side effects are resolved between five and eight weeks post-
implant, indicating that, at least for these initial patients, side effects resolved more quickly than the side 
effects that occur with competing seeds or with other forms of treatment. These limited findings support 
management’s belief that the 131Cs seed will result in less severe side effects than competing treatments, 
but we may have to gather data on outcomes from additional patients before we can establish statistically 
valid conclusions regarding the incidence of side effects from our seeds.  

22 

 
 
 
 
 
  
  
  
We  Will  Need  To  Raise  Additional  Capital.  The  hiring  of  upper  level  executives  and  increasing 
production requirements significantly increased IsoRay’s monthly cash requirements since August 2005. 
Monthly operating cash requirements as of September 1, 2006 were approximately $800,000, excluding 
capitalized items. Capital expenditures typically include the purchase or capital lease of equipment, with a 
life-expectancy of more than 12 months, costing in excess of $2,500, which would include among other 
things:  analytical  systems,  improved  packaging  for  final  products  and,  new  production  systems  which 
increase  manufacturing  throughput.  Ongoing  requirements  to  meet  greater  payroll  obligations  coupled 
with  legal  and  accounting  fees  associated  with  our  public  reporting  status  have  resulted  in  greater 
amounts of short-term cash demands. IsoRay will need to continue to raise capital. 

We will also need substantial funds to complete the development, manufacturing, and marketing of our 
current  and  future  products.    Consequently,  we  will  seek  to  raise  additional  capital  through  not  only 
public and private offerings of equity and debt securities, but also collaborative arrangements, strategic 
alliances, or from other sources.  We will need to raise at least $3.2 million of additional capital to fund 
working  capital  needs  through  the  end  of  fiscal  year  2007.    IsoRay  currently  has  a  manufacturing  and 
production facility located in Richland, Washington that its management believes will provide adequate 
space  to  manufacture  the  131Cs  seed  product  for  the  prostate  and  other  organ  cancer  markets  until  late 
2007.  

We may be unable to raise additional capital on commercially acceptable terms, if at all, and if we raise 
capital  through  additional  equity  financing,  existing  shareholders  may  have  their  ownership  interests 
diluted.  Our  failure  to  be  able  to  generate  adequate  funds  from  operations  or  from  additional  sources 
would harm our business. 

The  Passage  Of  Initiative  297  In  Washington  May  Result  In  The  Relocation  Of  Our  Manufacturing 
Operations.  Washington  voters  approved  Initiative  297  in  late  2004,  which  may  impose  restrictions  on 
sites at which mixed radioactive and hazardous wastes are generated and stored. IsoRay has been assured 
by  the  Attorney  General’s  office  of  the  State  of  Washington  that  medical  isotopes  are  not  included  in 
Initiative 297 and that manufacturing in IsoRay’s new production facility would not be interrupted, but 
there  is  no  assurance  that  this  interpretation  of  Initiative  297  by  the  Attorney  General’s  Office  will 
continue to exclude medical isotopes.  In June 2006, a U.S. District court judge ruled that Initiative 297 
was unconstitutional in its entirety.  However, the state of Washington has indicated that it may appeal the 
decision.    If  this  decision  is  overturned  and  Initiative  297  is  enforced  it  could  impact  our  ability  to 
manufacture our seeds in the State of Washington. 

Management  believes  that  we  will  be  able  to  continue  our  manufacturing  operations  in  the  State  of 
Washington for the foreseeable future. In the event Initiative 297 is enforced against us, management may 
consider  establishing  an  alternate  manufacturing  facility  outside  of  Washington,  and  we  may  consider 
moving all or part of our operations to another state even if Initiative 297 is not enforced against us. 

We  Have  Limited  Manufacturing  Experience  And  May  Not  Be  Able  To  Meet  Demand.  The  existing 
management team and staff of IsoRay have experience primarily in research and development of products 
and our experience in commercial-scale manufacturing is limited. IsoRay began commercial production 
of  the  131Cs  seed  in  the  fourth  quarter  of  2004.    Although  IsoRay’s  management  team  has  significant 
radiochemistry  experience,  there  is  a  possibility  that  production  demands  may  result  in  challenges  that 
may be too difficult or expensive to overcome. IsoRay has developed and deployed semi-automated laser 
welding  equipment  that  can  produce  seeds  faster  than  fully-automated  equipment  the  Company  has 
reviewed  that  would  cost  several  million  dollars  to  design  and  fabricate.  IsoRay  believes  it  will 
continually find more efficient means of welding the titanium seeds; however, there is a possibility that 
future demand will outstrip our ability to produce seeds using the semi-automated process. With its new 
facility,  IsoRay’s  management  believes  that  IsoRay  will  be  able  to  meet  future  demand  unless  demand 
greatly  exceeds  management’s  current  projections,  which  management  does  not  believe  will  occur. 
IsoRay has entered into a lease agreement and has relocated to a manufacturing and production facility 
located in Richland, Washington that management believes will provide adequate space to manufacture 
131Cs seed product for the prostate and other organ cancer markets until late 2007.  

23 

 
 
 
 
 
 
 
Sales  And  Marketing  Experience.  IsoRay’s  sales  and  marketing  team  has  extensive  experience  in 
successfully  establishing  and  training  domestic  and  international  sales  forces  as  well  as  successfully 
introducing new medical devices to the market, but we have limited specific experience with commercial 
sales and marketing of the Cesium-131 radioisotope. IsoRay has employed marketing professionals with 
extensive experience selling medical devices, including radioisotopes for large, international companies. 
Our  initial  marketing  activities  have  been  targeted  to  a  limited  number  of  physicians  and  treatment 
centers, and we will need to recruit additional employees to assist in expanding our customer base. We 
have developed in-house customer service, order entry, shipping, billing, and sales support.  In addition, 
the Company engaged a nationally recognized reimbursement specialist, Kathy Francisco, of the Pinnacle 
Health Group, with over 25 years of healthcare reimbursement experience, to assist with reimbursement 
questions and to provide reimbursement guidelines and appropriate insurance coding numbers needed to 
obtain reimbursement for seed costs and the implant procedure by our customers.  Although, this group 
and  other  consultants  continue  to  be  available  to  support  the  Company  in  its  reimbursement  and 
marketing  programs,  we  cannot  be  certain  that  our  products  will  be  marketed  and  distributed  in 
accordance with our expectations or that our market research will be accurate. We also cannot be certain 
that  we  will  be  able  to  develop  our  own  sales  and  marketing  capabilities  to  the  extent  anticipated  by 
management. We may choose to add third-party distribution channels, but we may not be able to maintain 
satisfactory arrangements with the third parties upon whom we rely. 

We Are Subject To The Risk That Certain Third Parties May Mishandle Our Product. We rely on third 
parties, such  as Federal Express, to deliver our  131Cs seed, and on other third parties, including various 
radiopharmacies, to package our  131Cs seed in certain specialized packaging forms that, as of the date of 
this report, we do not provide at our own facilities. We are subject to the risk that these third parties may 
mishandle our product, which could result in adverse effects, particularly given the radioactive nature of 
our product. As an example, on January 5, 2006, IsoRay was notified by one of its primary customers, 
Chicago  Prostate  Cancer  Center  (“CPCC”),  that  it  would  no  longer  accept  131Cs  products  from  the 
radiopharmacy exclusively used by IsoRay at that time due to quality control concerns. The role of the 
radiopharmacy is to provide third-party assay, preloading, and sterilization of the  131Cs seeds which are 
then  shipped  directly  to  customers  for  use  in  patient  implants.  IsoRay  immediately  began  working  to 
bring  these  functions  in  house.  On  March  28,  2006,  following  commencement  of  operations  of  the 
Company’s  pre-load  department,  which  performs  third-party  assay,  preloading  and  sterilization  of  the 
131Cs  seeds,  CPCC  resumed  ordering  from  us.    Initial  shipments  of  131Cs  seeds,  custom-loaded  to  this 
customer’s  specifications,  met  the  quality  control  guidelines  established  by  CPCC.  Although  the 
temporary  three  month  suspension  of  seed  orders  by  CPCC  had  a  negative  impact  on  revenue  in  the 
quarter  ended  March  31,  2006,  the  Company’s  management  believes  any  long-term  impact  will  be 
nominal. 

Our Operating Results Will Be Subject To Significant Fluctuations. Our quarterly revenues, expenses, and 
operating results are likely to fluctuate significantly in the future. Fluctuation may result from a variety of 
factors, which are discussed in detail throughout this “RISK FACTORS” section, including: 

effects of aggressive competitors; 

research and development and manufacturing expenses; 

(cid:131)  our achievement of product development objectives and milestones; 
(cid:131)  demand and pricing for the Company’s products; 
(cid:131) 
(cid:131)  hospital, clinic and physician buying decisions; 
(cid:131) 
(cid:131)  patient outcomes from our therapy; 
(cid:131)  physician acceptance of our products; 
(cid:131)  government or private healthcare reimbursement policies; 
(cid:131)  our manufacturing performance and capacity; 
(cid:131) 
(cid:131) 
(cid:131) 

incidents, if any, that could cause temporary shutdown of our manufacturing facilities; 
the amount and timing of sales orders; 
rate and success of future product approvals; 

24 

 
 
  
 
(cid:131) 

timing  of  FDA  approval,  if  any,  of  competitive  products  and  the  rate  of  market  penetration  of 
competing products; 
seasonality of purchasing behavior in our market; 

(cid:131) 
(cid:131)  overall economic conditions; and 
(cid:131) 

the successful introduction or market penetration of alternative therapies. 

We Rely Heavily On A Limited Number Of Suppliers. Some materials used in our products are currently 
available  only  from  a  limited  number  of  suppliers.  For  example,  virtually  all  titanium  tubing  used  in 
brachytherapy seed manufacture comes from a single source, Accellent Corporation. We currently obtain 
a key component of our seed core from a single supplier. We do not have formal written agreements with 
either this key supplier or with Accellent Corporation. Any interruption or delay in the supply of materials 
required  to  produce  our  products  could  harm  our  business  if  we  were  unable  to  obtain  an  alternative 
supplier or substitute equivalent materials in a cost-effective and timely manner. Additional factors that 
could cause interruptions or delays in our source of materials include limitations on the availability of raw 
materials  or  manufacturing  performance  experienced  by  our  suppliers  and  a  breakdown  in  our 
commercial  relations  with  one  or  more  suppliers.  Some  of  these  factors  may  be  completely  out  of  our 
control and our suppliers’ control. 

Future Production Increases Will Depend on Our Ability to Acquire Larger Quantities of  Cs and Hire 
IsoRay  currently  obtains  131Cs  through  reactor  irradiation  of  natural  barium  and 
More  Employees. 
subsequent  separation  of  cesium  from  the  irradiated  barium  targets.  The  amount  of  131Cs  that  can  be 
produced  from  a  given  reactor  source  is  limited  by  the  power  level  and  volume  available  within  the 
reactor  for  irradiating  targets.  This  limitation  can  be  overcome  by  utilizing  barium  feedstock  that  is 
enriched in the stable isotope 130Ba. However, the number of suppliers of enriched barium is limited and 
they may be unable to produce this material in sufficient quantities at a reasonable price. 

131

IsoRay  has  entered  into  an  exclusive  agreement  with  the  Institute  of  Nuclear  Materials  in  the  former 
Soviet  Union  to  provide  irradiated  barium  and  131Cs  in  quantities  sufficient  to  supply  a  significant 
percentage  of  future  demand  for  131Cs.  Delivery  of  the  isotopes  from  the  Institute  of  Nuclear  Materials 
began in January 2006.  IsoRay believes this supplier may also provide access to sufficient quantities of 
enriched  barium  that  may  be  recycled  for  use  in  other  reactors  to  increase  the  production  of  131Cs.  
Although the agreement provides for supplying  131Cs in significant quantities, there is no assurance that 
this  will  result  in  IsoRay  gaining  access  to  a  sufficient  supply  of  enriched  barium  feedstock  and  if 
sufficient supplies are attained we will need to increase our manufacturing staff.  

We  Are  Subject  To  Uncertainties  Regarding  Reimbursement  For  Use  Of  Our  Products.  Hospitals  and 
freestanding  clinics  may  be  less  likely  to  purchase  our  products  if  they  cannot  be  assured  of  receiving 
favorable  reimbursement  for  treatments  using  our  products  from  third-party  payers,  such  as  Medicare, 
Medicaid  and  private  health  insurance  plans.  Currently,  Medicare  reimburses  hospitals,  clinics  and 
physicians for the cost of seeds used in brachytherapy procedures on a per seed basis. Historically, private 
insurers  have  followed  Medicare  guidelines  in  establishing  reimbursement  rates.  However,  third-party 
payers are increasingly challenging the pricing of certain medical services or devices, and we cannot be 
sure that they will reimburse our customers at levels sufficient for us to maintain favorable sales and price 
levels for our products.  There is no uniform policy on reimbursement among third-party payers, and we 
can provide no assurance that our products will continue to qualify for reimbursement from all third-party 
payers  or  that  reimbursement  rates  will  not  be  reduced.    A  reduction  in  or  elimination  of  third-party 
reimbursement  for  treatments  using  our  products  would  likely  have  a  material  adverse  effect  on  our 
revenues. 

In  2003,  IsoRay  applied  to  the  Centers  for  Medicare  and  Medicaid  Services  (CMS)  and  received 
reimbursement  codes  for  use  of  our  131Cs  seed  (HCPCS  code  C2633  and  APC  code  2633).  However, 
since  January  1,  2004  hospitals  and  clinics  ordering  brachytherapy  seeds  have  been  reimbursed  for  the 
cost  of  the  seeds  plus  a  fixed  mark-up  at  a  rate  prescribed  by  CMS.    Reimbursement  amounts  are 
reviewed and revised periodically, and on an ad hoc basis.  Although the Company is not currently aware 
of any changes to CMS reimbursement rates that would have a material effect on our ability to maintain 
25 

 
 
 
 
 
 
 
our  pricing  structure,  adjustments  could  be  made  to  these  reimbursement  amounts  or  policies,  which 
could result in reduced reimbursement for brachytherapy services, which could negatively affect market 
demand for our products. 

Furthermore,  any  federal  and  state  efforts  to  reform  government  and  private  healthcare  insurance 
programs  could  significantly  affect  the  purchase  of  healthcare  services  and  products  in  general  and 
demand for our products in particular.  We are unable to predict whether potential healthcare reforms will 
be enacted, whether other healthcare legislation or regulations affecting the business may be proposed or 
enacted  in  the  future  or  what  effect  any  such  legislation  or  regulations  would  have  on  our  business, 
financial condition or results of operations. 

It Is Possible That Other Treatments May Be Deemed Superior To Brachytherapy. Our  131Cs seed faces 
competition not only from companies that sell other radiation therapy products, but also from companies 
that are developing alternative therapies for the treatment of cancers. It is possible that advances in the 
pharmaceutical, biomedical, or gene therapy fields could render some or all radiation therapies, whether 
conventional  or  brachytherapy,  obsolete.    If  alternative  therapies  are  proven  or  even  perceived  to  offer 
treatment  options  that  are  superior  to  brachytherapy,  physician  adoption  of  our  product  could  be 
negatively affected and our revenues from our product could decline. 

Our  Industry  Is  Intensely  Competitive.  The  medical  products  industry  is  intensely  competitive.    We 
compete with both public and private medical device, biotechnology and pharmaceutical companies that 
have been established longer than we have, have a greater number of products on the market, have greater 
financial and other resources, and have other technological or competitive advantages.  We also compete 
with academic institutions, government agencies, and private research organizations in the development 
of  technologies  and  processes  and  in  acquiring  key  personnel.    Although  we  have  patents  granted  and 
patents applied for to protect our isotope separation processes and  131Cs seed manufacturing technology, 
we cannot be certain that one or more of our competitors will not attempt to obtain patent protection that 
blocks or adversely affects our product development efforts.  To minimize this potential, we have entered 
into exclusive agreements with key suppliers of isotopes and isotope precursors. 

We May Be Unable To Adequately Protect Or Enforce Our Intellectual Property Rights Or Secure Rights 
To  Third-Party  Patents.  Our  ability  and  the  abilities  of  our  partners  to  obtain  and  maintain  patent  and 
other  protection  for  our  products  will  affect  our  success.  We  are  assigned,  have  rights  to,  or  have 
exclusive licenses to patents and patents pending in the U.S. and numerous foreign countries. The patent 
positions  of  medical  device  companies  can  be  highly  uncertain  and  involve  complex  legal  and  factual 
questions. Our patent rights may not be upheld in a court of law if challenged. Our patent rights may not 
provide competitive advantages for our products and may be challenged, infringed upon or circumvented 
by  our  competitors.  We  cannot  patent  our  products  in  all  countries  or  afford  to  litigate  every  potential 
violation worldwide.  

Because  of  the  large  number  of  patent  filings  in  the  medical  device  and  biotechnology  field,  our 
competitors  may  have  filed  applications  or  been  issued  patents  and  may  obtain  additional  patents  and 
proprietary  rights  relating  to  products  or  processes  competitive  with  or  similar  to  ours.  We  cannot  be 
certain  that  U.S.  or  foreign  patents  do  not  exist  or  will  not  be  issued  that  would  harm  our  ability  to 
commercialize our products and product candidates. 

One Of Our Licensed Patents May Be Terminated Under Certain Conditions. Our 131Cs separation patent 
is essential for the production of Cesium-131.  The owner of the patent, Lane Bray, a shareholder of the 
Company and Chief Chemist of IsoRay, has the right to terminate the license agreement that allows the 
Company  to  use  this  patent  if  we  discontinue  production  for  any  consecutive  18  month  period.    The 
Company  has  no  plans  to  discontinue  production,  and  management  considers  it  highly  unlikely  that 
production will be discontinued for any significant period at any time in the future. 

Failure To Comply With Government Regulations Could Harm Our Business. As a medical device and 
medical isotope manufacturer, we are subject to extensive, complex, costly, and evolving governmental 
26 

 
 
 
 
 
 
  
  
 
rules, regulations and restrictions administered by the FDA, by other federal and state agencies, and by 
governmental authorities in other countries.  Compliance with these laws and regulations is expensive and 
time-consuming, and changes to or failure to comply with these laws and regulations, or adoption of new 
laws and regulations, could adversely affect our business. 

In the United States, as a  manufacturer of  medical devices  and devices utilizing radioactive by-product 
material, we are subject to extensive regulation by federal, state, and local governmental authorities, such 
as the FDA and the Washington State Department of Health, to ensure such devices are safe and effective. 
Regulations  promulgated  by  the  FDA  under  the  U.S.  Food,  Drug  and  Cosmetic  Act,  or  the  FDC  Act, 
govern the design, development, testing, manufacturing, packaging, labeling, distribution, marketing and 
sale, post-market surveillance, repairs, replacements, and recalls of medical devices. In Washington State, 
the  Department  of  Health,  by  agreement  with  the  federal  Nuclear  Regulatory  Commission  ("NRC"), 
regulates the possession, use, and disposal of radioactive byproduct material as well as the manufacture of 
radioactive  sealed  sources  to  ensure  compliance  with  state  and  federal  laws  and  regulations.  Our  131Cs 
brachytherapy  seeds  constitute  both  medical  devices  and  radioactive  sealed  sources  and  are  subject  to 
these regulations. 

Under  the  FDC  Act,  medical  devices  are  classified  into  three  different  categories,  over  which  the  FDA 
applies increasing levels of regulation: Class I, Class II, and Class III. Our 131Cs seed has been classified 
as a Class II device and has received clearance from the FDA through the 510(k) pre-market notification 
process.  Although not anticipated, any modifications to the device that would significantly affect safety 
or effectiveness, or constitute a  major change in intended use, would require a new 510(k) submission.  
As with any submittal to the FDA, there is no assurance that a 510(k) clearance would be granted to the 
Company. 

In  addition  to  FDA-required  market  clearances  and  approvals  for  our  products,  our  manufacturing 
operations are required to comply with the FDA's Quality System Regulation, or QSR, which addresses 
requirements  for  a  company's  quality  program  such  as  management  responsibility,  good  manufacturing 
practices, product and process design controls, and quality controls used in manufacturing. Compliance 
with applicable regulatory requirements is monitored through periodic inspections by the FDA Office of 
Regulatory  Affairs  ("ORA").  We  anticipate  both  announced  and  unannounced  inspections  by  the  FDA. 
Such inspections could result in non-compliance reports (Form 483) which, if not adequately responded 
to,  could  lead  to  enforcement  actions.  The  FDA  can  institute  a  wide  variety  of  enforcement  actions, 
ranging  from  public  warning  letters  to  more  severe  sanctions  such  as  fines,  injunctions,  civil  penalties, 
recall  of  our  products,  operating  restrictions,  suspension  of  production,  non-approval  or  withdrawal  of 
pre-market clearances for new products or existing products, and criminal prosecution. There can be no 
assurance that we will not incur significant costs to comply with these regulations in the future or that the 
regulations  will  not  have  a  material  adverse  effect  on  our  business,  financial  condition  and  results  of 
operations. 

The marketing of our products in foreign countries will, in general, be regulated by foreign governmental 
agencies similar to the FDA. Foreign regulatory requirements vary from country to country. The time and 
cost required to obtain regulatory approvals could be longer than that required for FDA clearance in the 
United  States  and  the  requirements  for  licensing  a  product  in  another  country  may  differ  significantly 
from  FDA  requirements.  We  will  rely,  in  part,  on  foreign  distributors  to  assist  us  in  complying  with 
foreign  regulatory  requirements.  We  may  not  be  able  to  obtain  these  approvals  without  incurring 
significant expenses or at all, and the failure to obtain these approvals would prevent us from selling our 
products in the applicable countries. This could limit our sales and growth. 

Our  Business  Exposes  Us  To  Product  Liability  Claims.  Our  design,  testing,  development,  manufacture, 
and  marketing  of  products  involve  an  inherent  risk  of  exposure  to  product  liability  claims  and  related 
adverse  publicity.  Insurance  coverage  is  expensive  and  difficult  to  obtain,  and,  although  we  currently 
have  a  five  million  dollar  policy,  in  the  future  we  may  be  unable  to  obtain  or  renew  coverage  on 
acceptable terms, if at all. If we are unable to obtain or renew sufficient insurance at an acceptable cost or 

27 

 
 
 
  
 
 
  
if a successful product liability claim is made against us, whether fully covered by insurance or not, our 
business could be harmed.  

Our  Business  Involves  Environmental  Risks.  Our  business  involves  the  controlled  use  of  hazardous 
materials,  chemicals,  biologics,  and  radioactive  compounds.    Manufacturing is  extremely  susceptible  to 
product loss due to radioactive, microbial, or viral contamination; material or equipment failure; vendor 
or operator error; or due to the very nature of the product’s short half-life.  Although we believe that our 
safety procedures for handling and disposing of such  materials comply with state and federal standards 
there will always be the risk of accidental contamination or injury.  In addition, radioactive, microbial, or 
viral contamination may cause the closure of the respective manufacturing facility for an extended period 
of time.  By law, radioactive materials may only be disposed of at state-approved facilities.  At our leased 
facility we use commercial disposal contractors.  We may incur substantial costs related to the disposal of 
these materials.  If we were to become liable for an accident, or if we were to suffer an extended facility 
shutdown, we could incur significant costs, damages, and penalties that could harm our business.  

We Rely Upon Key Personnel. Our success will depend, to a great extent, upon the experience, abilities 
and continued services of our executive officers and key scientific personnel. IsoRay has an employment 
agreement with Roger Girard, its Chief Executive Officer, and its subsidiary has employment agreements 
with most of its executive officers and key scientific personnel.  If we lose the services of several of these 
officers or key scientific personnel, our business could be harmed.  Our success also will depend upon our 
ability  to  attract  and  retain  other  highly  qualified  scientific,  managerial,  sales,  and  manufacturing 
personnel  and  their  ability  to  develop  and  maintain  relationships  with  key  individuals  in  the  industry.  
Competition  for  these  personnel  and  relationships  is  intense  and  we  compete  with  numerous 
pharmaceutical  and  biotechnology  companies  as  well  as  with  universities  and  non-profit  research 
organizations.  We may not be able to continue to attract and retain qualified personnel. 

The  Value  Of  Our  Granted  Patent,  and  Our  Patents  Pending,  Is Uncertain.  Although  our management 
strongly  believes  that  our  patent  on  the  process  for  producing  131Cs,  our  patent  pending  on  the 
manufacture of the brachytherapy seed, our patent applications on additional methods for producing 131Cs 
and other isotopes which have been filed, and anticipated future patent applications, which have not yet 
been filed, have significant value, we cannot be certain that other like-kind processes may not exist or be 
discovered, that any of these patents is enforceable, or that any of our patent applications will result in 
issued patents. 

Our Ability To Expand Into Foreign Markets Is Uncertain.  Our future growth will depend in part on our 
ability to establish, grow and maintain product sales in foreign markets, particularly in Europe and Asia. 
However,  we  have  limited  experience  in  marketing  and  distributing  products  in  other  countries.  Any 
foreign operations would subject us to additional risks and uncertainties, including our customers’ ability 
to obtain reimbursement for procedures using our products in foreign markets; the burden of complying 
with  complex  and  changing  foreign  regulatory  requirements;  language  barriers  and  other  difficulties  in 
providing long-range customer service; potentially longer accounts receivable collection times; significant 
currency  fluctuations,  which  could  cause  third-party  distributors  to  reduce  the  number  of  products  they 
purchase from us because the cost of our products to them could fluctuate relative to the price they can 
charge their customers; reduced protection of intellectual property rights in some foreign countries; and 
the possibility that contractual provisions governed by foreign laws would be interpreted differently than 
intended  in  the  event  of  a  contract  dispute.  Any  future  foreign  sales  of  our  products  could  also  be 
adversely affected by export license requirements, the imposition of governmental controls, political and 
economic instability, trade restrictions, changes in tariffs and difficulties in staffing and managing foreign 
operations. Many of these factors may also affect our ability to import enriched barium from Russia under 
our contract with the Institute of Nuclear Materials. 

Our Ability To Initiate Operations And Manage Growth Is Uncertain. Our efforts to commercialize our 
medical  products  will  result  in  new  and  increased  responsibilities  for  management  personnel  and  will 
place a strain upon the entire company. To compete effectively and to accommodate growth, if any, we 
may  be  required  to  continue  to  implement  and  to  improve  our  management,  manufacturing,  sales  and 
28 

 
 
  
  
 
 
 
marketing,  operating  and  financial  systems,  procedures  and  controls  on  a  timely  basis  and  to  expand, 
train,  motivate  and  manage  our  employees.  There  can  be  no  assurance  that  our  personnel,  systems, 
procedures, and controls will be adequate to support our future operations. If the IsoRay 131Cs seed were 
to rapidly become the “seed of choice,” it is unlikely that we could meet demand. We could experience 
significant  cash  flow  difficulties  and  may  have  difficulty  obtaining  the  working  capital  required  to 
manufacture  our  products  and  meet  demand.  This  would  cause  customer  discontent  and  invite 
competition.  

Our  Reporting  Obligations  As  A  Public  Company  Are  Costly.  Operating  a  public  company  involves 
substantial costs to comply with reporting obligations under federal securities laws that are continuing to 
increase as provisions of the Sarbanes Oxley Act of 2002 are implemented. These reporting obligations 
will  increase  our  operating  costs.  We  may  not  reach  sufficient  business  volume  to  justify  our  public 
reporting status. 

There Is A Limited Market For Our Common Stock.  Currently only a limited trading market exists for our 
common stock.  Our common stock currently trades on the Over-The-Counter Bulletin Board, a market 
with limited liquidity and minimal listing standards, under the symbol “ISRY.OB.” While  management 
has plans to apply for listing on the American Stock Exchange, the Company currently does not meet the 
applicable requirements and is uncertain as to when it will be able to do so. Any broker/dealer that makes 
a market in our stock or other person that buys or sells our stock could have a significant influence over 
its price at any given time. Shareholders may experience more difficulty in attempting to sell their shares 
than if the shares were listed on a national stock exchange or quoted on the NASDAQ Stock Market. We 
cannot assure our shareholders that a market of our stock will be sustained. There is no assurance that our 
shares will have any greater liquidity than shares that do not trade on a public market.  

Our Stock Price Is Likely To Be Volatile. There is generally significant volatility in the market prices and 
limited  liquidity  of  securities  of  early  stage  companies,  and  particularly  of  early  stage  medical  product 
companies. Contributing to this volatility are various events that can affect our stock price in a positive or 
negative  manner.  These  events  include,  but  are  not  limited  to:  governmental  approvals,  refusals  to 
approve, regulations or actions; market acceptance and sales growth of our products; litigation involving 
the Company or our industry; developments or disputes concerning our patents or other proprietary rights; 
changes  in  the  structure  of  healthcare  payment  systems;  departure  of key  personnel;  future  sales  of  our 
securities; fluctuations in our financial results or those of companies that are perceived to be similar to us; 
investors’ general perception of us; and general economic, industry and market conditions. If any of these 
events occur, it could cause our stock price to fall.  

Our Common Stock Is Subject To Penny Stock Regulation. As the market price of our shares has declined 
below $5.00 per share, our shares are now subject to the provisions of Section 15(g) and Rule 15g-9 of 
the  Securities  Exchange  Act  of  1934,  as  amended,  commonly  referred  to  as  the  “penny  stock”  rule. 
Section  15(g)  sets  forth  certain  requirements  for  transactions  in  penny  stocks  and  Rule  15g-9(d)(1) 
incorporates  the  definition  of  penny  stock  as  that  used  in  Rule  3a51-1  of  the  Exchange  Act.  The  SEC 
generally defines penny stock to be any equity security that has a market price less than $5.00 per share, 
subject  to  certain  exceptions.  Rule  3a51-1  provides  that  any  equity  security  is  considered  to  be  penny 
stock  unless  that  security  is:  registered  and  traded  on  a  national  securities  exchange  meeting  specified 
criteria set by the SEC; authorized for quotation on The NASDAQ Stock Market; issued by a registered 
investment company; excluded from the definition on the basis of price (at least $5.00 per share) or the 
Company’s  net  tangible  assets;  or  exempted  from  the  definition  by  the  SEC.  As  our  shares  are  now 
deemed to be “penny stocks”, trading in the shares are subject to additional sales practice requirements on 
broker-dealers  who  sell  penny  stocks  to  persons  other  than  established  customers  and  accredited 
investors.  This  classification  also  makes  our  shares  ineligible  for  market  coverage  by  many  established 
brokerage firms.  

ITEM 2 - DESCRIPTION OF PROPERTY

29 

 
 
 
 
  
  
 
  
Subsequent  to  June  2005,  the  Company’s  executive  offices  are  located  at  350  Hills  Street,  Suite  106, 
Richland, WA 99354, (509) 375-1202, where IsoRay currently leases approximately 3,765 square feet of 
office and laboratory space for $5,144 per month from Energy Northwest.  The lease expires December 
31, 2006, but is renewable. The Company is not affiliated with its lessor.  Additional office space will be 
needed as employees are hired, and is currently available at this location.  The Company believes that its 
current facilities will be adequate until the end of fiscal year 2007, but it will need additional facilities at 
that  time.  In  the  future,  due  to  business  growth,  the  Company  may  elect  to  combine  administrative 
services  and  production  in  one  building  which  the  Company  may  lease  or  build  depending  on  market 
conditions.  

We have entered into a lease, which commenced as of regulatory licensing approval on October 6, 2005, 
for a facility located in Richland, Washington that management believes will provide adequate space to 
manufacture  the  Cs-131  product  for  the  prostate  cancer  markets  until  late  2007,  with  a  maximum 
manufacturing capacity of approximately 60,000 seeds per month and total square footage of 4,400 feet. 
The  lease  is  for  a  term  of  twelve  months  following regulatory  licensing  approval,  with  a  twelve-month 
extension  option.    Payment  for  the  initial  lease  term  was  the  issuance  of  24,007  shares  of  IsoRay,  Inc. 
common  stock.  The  lease  may  be  extended  on  a  month-to-month  basis  by  mutual  agreement  of  the 
parties. The lessor is Pacific EcoSolutions Incorporated (PEcoS), and the Company is not affiliated with 
this  lessor.  Equipment  installed  at  this  facility  includes  a  hot  cell,  a  glove  box,  three  fume-hoods,  laser 
welders  and  laser  welding  tooling,  which  complete  the  laser  sealing  of  the  seeds;  sophisticated  testing 
equipment that allows us to test materials used at several stages of the production process and assay the 
completed seeds prior to shipment; and sterilizing and packaging systems that allow the seeds to be pre-
loaded into delivery systems according to customer specifications. We believe we will need to add to the 
capital  production  equipment  installed  at  this  facility  within  the  next  six  to  twelve  months  to  meet 
increasing demand for our product, and have adequate room at the facility to install equipment that would 
approximately double the production capacity up to 60,000 seeds per month (approximately 600 patient 
treatments).  If additional production space is needed it is available at the PEcoS facility. 

The Company’s management believes that all facilities occupied by the Company are adequate for present 
requirements,  and  that  the  Company’s  current  equipment  is  in  good  condition  and  is  suitable  for  the 
operations involved.  

ITEM 3 - LEGAL PROCEEDINGS 

The Company is not involved in any material legal proceedings. 

ITEM 4 - SUBMISSION OF MATTERS TO A VOTE OF SECURITY HOLDERS 

No  matter  was  submitted  to  a  vote  of  the  Company’s  security  holders  during  the  fourth  quarter  of  the 
fiscal year covered by this Annual Report.  

PART II

ITEM 5 - MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDERS’ MATTERS

The  Company’s  Articles  of  Incorporation  provide  that  the  Company  has  the  authority  to  issue 
200,000,000 shares of capital stock, which are currently divided into two classes as follows: 194,000,000 
shares of common stock, par value of $0.001 per share; and 6,000,000 shares of preferred stock, par value 
of $0.001 per share.  As of September 18, 2006, we had 15,802,394 outstanding shares of Common Stock 
and 122,543 outstanding shares of Preferred Stock.  

Our common stock is quoted on the OTC Bulletin Board under the symbol "ISRY.OB" and on the Pink 
Sheets under the symbol "ISRY.PK." There is limited trading activity in our securities, and there can be 
no assurance a regular trading market for our common stock will be sustained. We resumed trading on the 
Pink Sheets on August 18, 2005, after a period of no trading activity from February 18, 2005 until August 
30 

 
 
 
 
 
 
 
 
 
 
 
 
18,  2005.  We  also  had  a  period  of  no  trading  activity  from  July  2003  until  February  7,  2005.  On 
November 2, 2005, we began trading on the OTC Bulletin Board. The following table sets forth, for the 
calendar periods indicated, the range of the high and low last reported bid prices of our common stock 
from October 1, 2003 through December 31, 2005, as reported by the Pink Sheets and the OTC Bulletin 
Board.  The quotations represent inter-dealer prices without retail mark-ups, mark-downs or commissions, 
and may not necessarily represent actual transactions.  The quotations may be rounded for presentation. 
There is an absence of an established trading market for the Company's common stock, as the market is 
limited, sporadic and highly volatile, which may affect the prices listed below. 

The  following  table  sets  forth,  for  the  fiscal  quarters  indicated,  the  high  and  low  sales  prices  for  our 
common stock as reported on the OTC Bulletin Board and the Pink Sheets. 

Year ended June 30, 2006 

First quarter 
Second quarter 
Third quarter 
Fourth quarter 

Year ended June 30, 2005 

First quarter 
Second quarter 
Third quarter(1) 

High 
$  5.95 
8.25 
7.25 
6.40 

High 
$  N/A 
* 
  N/A 

Low 
$  1.00 
4.50 
6.20 
3.25 

Low 
$  N/A 
* 
  N/A 

*  Less than $0.01. 
(1)     Due to our change of fiscal year end from September 30 to June 30, our 2005 fiscal year 

was only nine months long. 

The Company has never paid any cash dividends on its Common Stock and does not plan to pay any cash 
dividends in the foreseeable future. 

As of September 15, 2006, we had approximately 890 shareholders of record, exclusive of shares held in 
street name. 

Equity Compensation Plans

On May 27, 2005, the Company adopted the 2005 Stock Option Plan (the “Option Plan”) and the 2005 
Employee  Stock  Option  Plan  (the  “Employee  Plan”),  pursuant  to  which  it  may  grant  equity  awards  to 
eligible persons.  On August 15, 2006, the Company adopted the 2006 Director Stock Option Plan (the 
“Director  Plan”)  pursuant  to  which  it  may  grant  equity  awards  to  eligible  persons.    The  Option  Plan 
allows  the  Board  of  Directors  to  grant  options  to  purchase  up  to  1,800,000  shares  of  common  stock  to 
directors, officers, key employees and service providers of the Company, and the Employee Plan allows 
the Board of Directors to grant options to purchase up to 2,000,000 shares of common stock to officers 
and key employees of the Company.  The Director Plan allows the Board of Directors to grant options to 
purchase up to 1,000,000 shares of common stock to directors of the Company. Options granted under all 
of the Plans have a ten year maximum term, an exercise price equal to at least the fair market value of the 
Company’s  common  stock  (based  on  the  trading  price  on  the  OTC  Bulletin  Board)  on  the  date  of  the 
grant, and with varying vesting periods as determined by the Board.   

31 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
As of June 30, 2006, the following options had been granted under the option plans. 

Number of 
securities to 
be issued on 
exercise of 
outstanding 
options, 
warrants 
and rights 
# 
N/A 

Weighted-
average 
exercise 
price of 
outstanding 
options, 
warrants, 
and rights 
$ 
N/A 
       3,257,592 $           2.11           333,982 

Number of 
securities 
remaining 
available for 
future 
issuance 
under equity 
compensation 
plans 
N/A 

Plan Category
Equity compensation plans approved by shareholders 
Equity compensation plans not approved by shareholders 

Total 

    3,257,592 $           2.11           333,982 

Sales of Unregistered Securities

During the last fiscal year, the following sales of unregistered securities were completed by the Company 
and not previously reported: 

(cid:131)  On October 6, 2005, the Company issued 24,007 shares of common stock to Nuvotec USA, Inc. 
as payment for one year’s lease of the PIRL facilities pursuant to the exemption from registration 
provided by Section 4(2) of the Securities Act. 

In addition, during the last fiscal year, the following sales of unregistered securities were completed by 
IsoRay Medical, Inc. and not previously reported: 

(cid:131)  Between  January  31,  2005  and  July  10,  2005,  IsoRay  Medical,  Inc.  sold  approximately 
$4,137,875 in principal amount of 8% convertible debentures (less commissions of ten percent on 
securities placed by broker/dealers), in reliance on the exemption from registration provided by 
Rule  506  of  Regulation  D  of  the  Securities  Act,  that  subsequent  to  the  merger  between  the 
Company and IsoRay Medical, Inc. were convertible into 995,882 shares of common stock of the 
Company.  On December 13, 2005, the Board of Directors of the Company announced a short-
term  conversion  inducement  to  current  holders  of  these  convertible  debentures.    Holders  were 
permitted  two  conversion  options:  1)  convert  under  the  original  terms  of  the  debenture  to  the 
Company’s common stock at a $4.15 conversion price, and include the newly issued shares in the 
Company’s registration statement on Form SB-2, or 2) convert under terms essentially identical 
to  those  offered  to  purchasers  of  Units  in  the  Company’s  October  2005  Offering:  a  $4.00 
conversion price and one callable warrant to purchase one share of the Company's common stock 
at an exercise price of $6.00 per share for each share issued upon conversion (waiving registration 
rights for approximately one year).  Holders of $3,682,875 of debentures converted to common 
stock  of  the  Company.    The  Company  issued  911,276  shares  of  common  stock,  and  659,469 
warrants to purchase shares of common stock, exercisable at $6.00 per share, leaving $455,000 in 
principal  amount  of  debentures  unconverted.    Of  the  911,276  shares  of  common  stock  issued 
pursuant to conversion of the debentures, 251,800 shares were included in the Company’s Form 
SB-2 filing (file number 333-129646) which became effective on June 8, 2006. 

ITEM 6 - MANAGEMENT’S DISCUSSION AND ANALYSIS OR PLAN OF OPERATION

Critical Accounting Policies and Estimates

The  discussion  and  analysis  of  the  Company’s  financial  condition  and  results  of  operations  are  based 
upon  its  consolidated  financial  statements,  which  have  been  prepared  in  accordance  with  accounting 
principles  generally  accepted  in  the  United  States  of  America.    The  preparation  of  these  financial 
32 

 
 
 
  
 
 
    
   
 
 
  
 
 
 
 
 
 
 
 
statements  requires  management  to  make  estimates  and  judgments  that  affect  the  reported  amounts  of 
assets, liabilities, revenues and expenses, and related disclosure of contingent liabilities.  On an on-going 
basis,  management  evaluates  past  judgments  and  estimates,  including  those  related  to  bad  debts, 
inventories,  accrued  liabilities,  and  contingencies.    Management  bases  its  estimates  on  historical 
experience and on various other assumptions that are believed to be reasonable under the circumstances, 
the results of which form the basis for making judgments about the carrying values of assets and liabilities 
that  are  not  readily  apparent  from  other  sources.    Actual  results  may  differ  from  these  estimates  under 
different assumptions or conditions. 

The Company believes the following critical accounting policies affect its more significant judgments and 
estimates used in the preparation of its consolidated financial statements. 

Accounts Receivable

Accounts receivable are stated at the amount that  management of the Company expects to collect from 
outstanding balances. Management provides for probable uncollectible amounts through an allowance for 
doubtful  accounts.  Additions  to  the  allowance  for  doubtful  accounts  are  based  on  management’s 
judgment,  considering  historical  write-offs,  collections  and  current  credit  conditions.  Balances  which 
remain  outstanding  after  management  has  used  reasonable  collection  efforts  are  written  off  through  a 
charge to the allowance for doubtful accounts and a credit to the applicable accounts receivable. Payments 
received subsequent to the time that an account is written off are considered bad debt recoveries. 

Inventory

Inventory  is  reported  at  the  lower  of  cost,  determined  using  the  weighted  average  method,  or  net 
realizable value. 

Asset Retirement Obligation 

SFAS No. 143, Asset Retirement Obligations, establishes standards for the recognition, measurement and 
disclosure  of  legal  obligations  associated  with  the  costs  to  retire  long-lived  assets.    Accordingly,  under 
SFAS No. 143, the fair value of the future retirement costs of the Company’s leased assets are recorded as 
a liability on a discounted basis when it is incurred and an equivalent amount is capitalized to property 
and equipment.  The initial recorded obligation, which has been discounted using the Company’s credit-
adjusted  risk  free-rate,  will  be  reviewed  periodically  to  reflect  the  passage  of  time  and  changes  in  the 
estimated future costs underlying the obligation.  The Company amortizes the initial amount capitalized 
to property and equipment and recognizes accretion expense in connection with the discounted liability 
over the estimated remaining useful life of the leased assets. 

Revenue Recognition

The  Company  applies  the  provisions  of  SEC  Staff  Accounting  Bulletin  (“SAB”)  No. 104,  Revenue 
Recognition.  SAB  No. 104,  which  supersedes  SAB  No. 101,  Revenue  Recognition  in  Financial 
Statements,  provides  guidance  on  the  recognition,  presentation  and  disclosure  of  revenue  in  financial 
statements. SAB No. 104 outlines the basic criteria that must be met to recognize revenue and provides 
guidance for the disclosure of revenue recognition policies. The Company recognizes revenue related to 
product sales when (i) persuasive evidence of an arrangement exists, (ii) shipment has occurred, (iii) the 
fee is fixed or determinable, and (iv) collectibility is reasonably assured. 

Revenue  for  the  fiscal  years  ended  June  30,  2006  and  2005  was  derived  solely  from  sales  of  the  131Cs 
brachytherapy seed, which is used in the treatment of cancer. The Company recognizes revenue once an 
order has been received and shipped to the customer. Prepayments, if any, received from customers prior 
to the time that products are shipped are recorded as deferred revenue. In these cases, when the related 
products are shipped, the amount recorded as deferred revenue is recognized as revenue. The Company 
accrues for sales returns and other allowances at the time of shipment. 

33 

 
 
 
 
 
 
 
 
 
 
 
  
Legal Contingencies 

In the ordinary course of business, the  Company is  involved in legal proceedings involving contractual 
and employment relationships, product liability claims, patent rights, and a variety of other matters. The 
Company records contingent liabilities resulting from asserted and unasserted claims against it, when it is 
probable  that  a  liability  has  been  incurred  and  the  amount  of  the  loss  is  reasonably  estimable.  The 
Company discloses contingent liabilities when there is a reasonable possibility that the ultimate loss will 
exceed  the  recorded  liability.  Estimating  probable  losses  requires  analysis  of  multiple  factors,  in  some 
cases  including  judgments  about  the  potential  actions  of  third-party  claimants  and  courts.  Therefore, 
actual losses in any future period are inherently uncertain. Currently, the Company does not believe any 
of its pending legal proceedings or claims will have a material impact on its financial position or results of 
operations.  However,  if  actual  or  estimated  probable  future  losses  exceed  the  Company’s  recorded 
liability for such claims, it would record additional charges as other expense during the period in which 
the actual loss or change in estimate occurred. 

Results of Operations

Financial Presentation 

Statement  of  Financial  Accounting  Standards  (SFAS)  No.  141,  Business  Combinations,  requires  that 
following  a  merger  the  accounting  acquirer’s  financial  statements  should  be  used  for  historical 
comparisons.  Although the legal acquirer was Century, for accounting purposes Medical was the acquirer 
and  as  such  Medical’s  historical  financial  statements  are  shown  for  comparative  purposes.    Also  for 
accounting purposes, the merger was accounted for as though it happened on July 1, 2005. 

The  following  sets  forth  a  discussion  and  analysis  of  the  Company’s  financial  condition  and  results  of 
operations  for  the  two  years  ended  June  30,  2006.  This  discussion  and  analysis  should  be  read  in 
conjunction  with  our  consolidated  financial  statements  appearing  elsewhere  in  this  Annual  Report  on 
Form 10-KSB.  The  following  discussion  contains  forward-looking  statements.  Our  actual  results  may 
differ  significantly  from  the  results  discussed  in  such  forward-looking  statements.    Factors  that  could 
cause or contribute to such differences include, but are not limited to, those discussed in “Item 1 — Risk 
Factors” of this Annual Report on Form 10-KSB. 

Year ended June 30, 2006 compared to year ended June 30, 2005 

Product  sales.    Revenues  for  the  year  ended  June  30,  2006  were  $1,994,306,  an  increase  of 
$1,792,575  over  sales  for  the  year  ended  June  30,  2005  of  $201,731.    All  of  the  Company’s 
revenues were generated through sales of its 131Cs seeds.  IsoRay began sales of its 131Cs seed on 
October  26,  2004  with  one  medical  center  customer.  By  June  30,  2006  the  number  of  medical 
center customers who had ordered the 131Cs seed had grown to 26. 

Gross  loss.    Gross  loss  was  $1,820,816  for  the  year  ended  June  30,  2006  or  an  increase  of 
$548,296 as compared to a gross loss of $1,272,520 for the year ended June 30, 2005.  Cost of 
products sold was $3,815,122 for the year ended June 30, 2006 or an increase of $2,340,871 over 
the $1,474,251 incurred for the year ended June 30, 2005.  During the year ended June 30, 2006, 
the  Company  paid  $868,650  to  Pacific  Northwest  National  Laboratory  (PNNL)  under  our 
contract  with  them  for  use  of  their  facilities  and  personnel  to  support  production.    During  the 
fourth quarter of fiscal year 2006, we paid approximately $110,000 for quality assurance support 
and as a deposit to extend our contract through December 31, 2007.  The Company is currently 
using PNNL for certain research and development and quality assurance activities.  Also during 
fiscal 2006, the Company paid approximately $1 million in wages, benefits, and related taxes for 
production personnel and approximately $1.6 million in direct and indirect material costs. These 
costs increased due to a larger staff and material and supply costs related to an increase in sales 
during fiscal year 2006.  

34 

 
 
 
 
 
 
 
 
 
 
 
Also included in cost of products sold during 2006 were over $109,000 for production and small 
tools, none of which individually exceeded the $2,500 threshold we use in determining whether to 
capitalize  production  equipment.    These  materials  and  small  tools  were  needed  to  commence 
production  in  our  independent  production  facility,  the  PEcoS-IsoRay  Radioisotope  Laboratory 
(“PIRL”).    Most  are  long-lived  items  and  will  not  need  replacing  in  the  next  fiscal  year.    The 
Company has moved essentially all of its Cs-131 production operations to PIRL. 

Research and development.  Research and development expenses for the year ended June  30, 
2006  were  $450,425  an  increase  of  $312,893  over  research  and  development  expenses  of 
$137,532 for the year ended June 30, 2005.  During 2006, $116,200 was spent on protocol studies 
of patients that have been implanted with the Company’s 131Cs brachytherapy seeds.  Also during 
2006, $144,588 was spent on research to improve Cs-131 production. 

Sales  and  marketing  expenses.    Sales  and  marketing  expenses  were  $1,420,500  for  the  year 
ended June 30, 2006.  This represents an increase of $718,678 over the expense of $701,822 for 
the year ended June 30, 2005.  During fiscal 2006, approximately $994,000 was spent on wages, 
travel,  office,  and  other  support  expenses  on  behalf  of  the  sales  and  marketing  and  customer 
service  staff.    The  balance  was  spent  on  advertising,  market  research  and  trade  shows  and 
conferences.    The  increases  are  due  to  increased  marketing  of  the  Company’s  131Cs  seed  since 
introduction of our product to the market in October 2004. 

General  and  administrative  expenses.    General  and  administrative  expenses  were  $3,503,522 
for the year ended June 30, 2006 or an increase of $1,632,197 as compared to $1,871,325 for the 
year ended June 30, 2005.  Included in general and administrative expenses in 2006 is $330,000 
relating to consulting fees for the reverse acquisition that was paid with the issuance of common 
stock  (see  Item  1).  The  increases  over  the  prior  periods  are  due  to  supporting  the  Company’s 
increased manufacturing and sales activities.  These activities have increased as the Company has 
only  been  manufacturing  and  selling  its  product  since  October  2004.    Additionally,  increased 
expenses in the 2006 fiscal year were due to compliance with SEC regulations following the July 
28,  2005  merger.  Significant  components  of  general  and  administrative  expenses  include 
$838,797 in consulting expense, payroll and related expenses of $866,863 and professional fees, 
including  accounting  and  legal  fees  of  $522,318.  Consulting  services  increased  in  connection 
with  the  establishment  of  the  independent  PIRL  production  facilities,  which  commenced 
production  in  the  late  Fall  of  2005,  and  associated  equipment  installation,  customization  and 
validation;  review  and  advice  on  business  and  capital  strategies,  and  the  addition  of  a  medical 
director  who  serves  as  a  consultant.  Professional  fees  increased  due  to  the  Company’s  July  28, 
2005 merger, SEC compliance activities including the Company’s registration statement on Form 
SB-2 filed that was effective in June 2006, and other general business activities. 

Operating loss.  Due to the Company’s significant research and develop expenditures, additional 
responsibilities  as  a reporting company, rapid structural growth, and nominal product revenues, 
the Company has not been profitable, and has generated operating losses since inception.  For the 
year ended June 30, 2006, the Company had an operating loss of $7,195,263.  This represents an 
increased loss of $3,212,064 in comparison with the year ended June 30, 2005 operating loss of 
$3,983,199. 

Interest income.  Interest income increased by $49,350 to $51,744 for the year ended June 30, 
2006.  Interest income is mainly derived from excess funds held in certain near-liquid accounts. 

Financing expense.  Financing expense for the year ended June 30, 2006 includes $332,493 of 
interest expense incurred on long-term debt and convertible debentures outstanding. The interest 
expense increased over the prior year due to interest payments on the convertible debentures that 
were  sold  as  part  of  the  January  1,  2005  PPM,  computed  interest  expense  on  the  capital  leases 
entered into during fiscal 2006, and interest expense on other loans that were initiated in January 

35 

 
 
 
 
 
 
 
 
 
2005. The remaining balance of financing expense represents amortization of deferred financing 
costs  primarily  related  to  the  January  2005  issuance  of  common  stock  to  guarantors  of  certain 
loans made to the Company, commissions and legal costs paid in conjunction with the issuance of 
convertible  debentures,  issuance  of  warrants  as  an  inducement  for  a  note  payable,  and  costs 
associated  with  the  initiation  of  the  Hanford  Area  Economic  Investment  Fund  Committee 
(HAEIFC)  note  payable.    During  2006,  $89,516  of  deferred  financing  costs  were  expensed 
relating to debentures that were converted to common stock. 

Debt conversion expense.  This amount of approximately $385,000 relates to the one-time, non-
cash  expense  resulting  from  the  short-term  inducement  offered  to  debenture  holders  to  their 
convert debentures to common stock (see Note 11).  This expense was recognized in accordance 
with  Statement  of  Financial  Accounting  Standard  No.  84,  Induced  Conversions  of  Convertible 
Debt.  

Year ended June 30, 2005 compared to year ended June 30, 2004

Product sales.  Revenues for the year ended June 30, 2005 were $201,731.  The Company did 
not have any revenues for the year ended June 30, 2004.  IsoRay began sales of its 131Cs seed on 
October 26, 2004 with one medical center customer.  All of the Company’s sales in 2005 were 
generated through sales of its 131Cs seeds. 

Gross  loss.    Gross  loss  was  $1,272,520  and  cost  of  products  sold  was  $1,474,251  for  the  year 
ended June 30, 2005.  The Company did not have any gross loss or cost of products sold for the 
year ended June 30, 2005.  During the year ended June 30, 2005, the Company paid $574,225 to 
Pacific  Northwest  National  Laboratory  (PNNL)  under  our  contract  with  them  for  use  of  their 
facilities and personnel to support production.  The Company was using PNNL for production of 
its seeds and other activities. 

Research and development.  Research and development expenses for the year ended June  30, 
2005 were $137,532 an increase of $95,206 over research and development expenses of $42,326 
for the year ended June 30, 2004.  The change is due to research to improve Cs-131 production 
and of other isotopes. 

Sales and marketing expenses.  Sales and marketing expenses were $701,822 for the year ended 
June 30, 2005.  This represents an increase of $620,336 over the expense of $81,486 for the year 
ended June 30, 2004.  Most of the 2005 expenses were spent on wages, travel, office, and other 
support expenses on behalf of the sales and marketing and customer service staff.  The increases 
are due to hiring sales personnel during 2005 to market the Company’s 131Cs seed which was only 
introduced to the market in October 2004. 

General  and  administrative  expenses.    General  and  administrative  expenses  were  $1,871,325 
for the year ended June 30, 2005 as compared to $650,161 for the year ended June 30, 2004.  The 
increase is due to increased salaries for officers who were foregoing salaries or were paid under 
market  and  the  hiring  of  additional  staff  as  the  Company  began  manufacturing  and  selling  its 
product.  Approximately $870,000 was spent on payroll, benefits, and related employment costs 
during  fiscal  year  2005.    Other  significant  components  of  general  and  administrative  expenses 
included  about  $178,000  in  consulting  services  and  $269,000  of  professional  fees.    Consulting 
expenses increased as the Company hired advisors for operations, business and capital strategies. 
Professional  fees  increased  due  to  the  merger  of  the  two  predecessor  companies  into  IsoRay 
Medical, Inc. as well as the Company’s private placements and other general business matters. 

Operating loss.  Due to the Company’s significant research and development expenditures, large 
general  and  administrative  expenses  and  payroll  related  to  properly  staffing  the  Company  for 
anticipated  further  growth  coupled  with  nominal  product  revenues,  the  Company  generated 
operating  losses.    For  the  year  ended  June  30,  2005,  the  Company  had  an  operating  loss  of 

36 

 
 
 
 
 
 
 
 
 
 
$3,983,199.  This represents an increased loss of $3,209,226 in comparison with the year ended 
June 30, 2004 operating loss of $773,973. 

Interest  income.    Interest  income  was  $2,394  for  the  year  ended  June  30,  2005  which  was  an 
increase of $496 over interest income of $1,898 for the year ended June 30, 2004. 

Financing expense.  Financing expense for the year ended June 30, 2005 includes amortization 
of  deferred  financing  costs  and  interest  expense  incurred  on  long-term  debt  and  convertible 
debentures  outstanding.    The  deferred  financing  costs  relate  primarily  to  the  January  2005 
issuance of common stock to guarantors of certain loans made to the Company and commissions 
and legal costs paid in conjunction with the issuance of convertible debentures.  Amortization of 
these costs amounted to $76,746 during 2005.  The remaining balance relates to interest expense 
which increased due to the issuance of the convertible debentures in 2005. 

Loss on disposal of fixed assets.  This loss in 2005 relates to the write-off of certain rudimentary 
production  equipment  that  was  replaced  by  complex  production  equipment  that  improves  the 
manufacturing process. 

Liquidity and capital resources.  At June 30, 2006, cash and cash equivalents amounted to $2,207,452.  
During the year ended June 30, 2006, the Company issued 1,768,889 shares of common stock pursuant to 
two  private  placements,  which  raised  $6,516,350  of  cash,  net  of  legal  costs  and  commissions  paid.  
Additionally, the Company issued 666,691 shares of common stock pursuant to the exercise of common 
stock  options  and  warrants  and  preferred  stock  warrants,  which  were  exchanged  for  common  stock 
immediately upon exercise.  These option and warrant exercises were paid in cash and by surrendering a 
partial  note  payable.    The  Company  received  $1,400,114  in  cash  and  forgiveness  of  $48,313  of  notes 
payable  pursuant  to  these  exercises.    During  2006,  the  Company  exchanged  $3,682,875  of  convertible 
debentures for 911,271 common shares and 659,469 warrants.  This conversion allowed the Company to 
alleviate approximately $3.68 million of indebtedness at a favorable equity exchange rate. The Company 
also issued 207,479 shares of common stock for $515,035 of consulting services, production equipment 
repair and maintenance, production equipment, and production rent. 

On August 17, 2006, the Company closed a round of institutional funding that provided approximately $5 
million, net of offering costs.  The Company issued 2,063,000 shares of common stock at a price of $2.50 
per share and 2,269,300 common stock warrants (including broker warrant commissions) with an exercise 
price of $3.00 per share.  The warrants have a call feature which the Company can trigger once the stock 
trades above $4.50 per share for a specified period of time. 

The Company had approximately $5.9 million of cash on hand as of September 1, 2006.  As of that date 
management  believes  that  the  Company’s  monthly  required  cash  operating  expenditures  were 
approximately  $800,000.    This  recent  increase  in  monthly  expenditures  is  primarily  a  result  of  the 
addition of various protocols for seed applications and the obsolescence of the Company’s oversupply of 
Cesium  resulting  from  an  inability  to  forecast  demand  after  the  slower  than  anticipated  months  of  July 
and August.  Management is focused on achieving better forecasting demand models to alleviate loss of 
viable seeds due to a half life which results in quick obsolescence and believes that increases in demand 
will  lessen  the  impact  of  overoptimistic  forecasts.    The  Company  has  issued  purchase  orders  for 
additional  production  equipment  that  will  allow  it  to  expand  production  capacity  in  its  current  facility.  
The total of these purchase orders is approximately $260,000 and it is anticipated that about $225,000 of 
this equipment will be funded with the HAEIFC loan.  As of September 1, 2006, management believes 
that assuming expenditures continue at approximately the same monthly rate and that it is able to fund a 
portion  of  its  equipment  purchases  with  the  HAEIFC  loan  that  the  Company’s  cash  on  hand  will  fund 
operating expenditures through the beginning of March 2007.  This is based on the Company attaining its 
current  revenue  targets  and  the  ability to  efficiently  manufacture  our  product.    If  we  should  experience 
disruptions in our revenues then our monthly cash requirements would increase and necessitate that we 
obtain additional funding prior to March 2007. 

37 

 
 
 
 
 
 
 
 
  
Our growth plans for fiscal 2007 include expanding sales to new customers, growing sales volume with 
existing  customers,  and  expanding  production  capability  through  the  purchase  of  additional  equipment.  
The Company has also begun a review of its current facilities and future needs. The Company continues 
to use PNNL to provide third-party assay of its products, but has otherwise vacated PNNL facilities. This 
review includes evaluating the Company’s need for space given its growth projections.  It is anticipated 
that additional employees and production equipment will be needed to  meet future growth.  This could 
create the need for additional production and office space that would be leased through an operating lease. 

IsoRay has four loans outstanding as of June 30, 2006.  The first from Tri-City Industrial Development 
Council, with an original principal amount of $40,000, was funded in 2001 and required a final principal-
only  payment  of  $10,000  which  was  paid  in  August  2006.    It  was  non-interest  bearing  and  unsecured.  
The second loan is from the Benton-Franklin Economic Development District (“BFEDD”) in an original 
principal amount of $230,000 and was funded in December 2004.  It bears interest at eight percent and 
has a sixty month term with a final balloon payment.  As of June 30, 2006, the principal balance owed 
was  $204,237.    This  loan  is  secured  by  certain  equipment,  materials  and  inventory  of  IsoRay,  and  also 
required  personal  guarantees,  for  which  the  guarantors  were  issued  approximately  70,455  shares  of 
common stock.  The third loan is a line of credit from Columbia River Bank, which provides credit in the 
amount  $395,000.    It  bears  interest  at  a  floating  prime  plus  two  percent  rate,  and  is  secured  by  certain 
accounts  receivable  and  inventory  and  personal  guarantees,  for  which  the  guarantors  were  issued 
approximately 107,401 shares of common stock.  As of June 30, 2006, no balance was outstanding on the 
line of credit.  The line of credit expires on March 1, 2007.  The fourth loan is from the Hanford Area 
Economic Fund Investment Committee and was originated in June 2006.  The loan has a total facility of 
$1,400,000 and bears interest at nine percent.  As of June 30, 2006, the Company has taken only a partial 
draw  of  $418,670  on  the  facility  and  the  remaining  facility  of  $981,330  is  available  to  use  to  purchase 
equipment.    This  loan  is  secured  by  receivables,  equipment,  materials  and  inventory  of  IsoRay,  and 
certain life insurance policies. 

The  BFEDD  has  granted  IsoRay  a  waiver  from  enforcing  violations  of  paying  officers  in  excess  of 
$100,000 per year and maintaining a certain current asset ratio.  The waiver is effective through June 30, 
2007  and  also  excuses  non-compliance  with  covenants  prohibiting  fixed  asset  of  lease  obligations  in 
excess  of  $24,000  per  year,  covenants  prohibiting  mergers,  and  covenants  requiring  maintenance  of  a 
certain  long-term  debt  to  equity  ratio.    Management  believes  that  if  the  BFEDD  accelerates  repayment 
that it has sufficient cash resources to satisfy this obligation. 

The Company has certain capital leases for production and office equipment that expire at various times 
from March 2008 to April 2009.  These leases currently call for total monthly payments of $19,361.  The 
total of capital lease obligations at June 30, 2006 was $403,969. 

At June 30, 2006, the Company had outstanding $455,000 of convertible debentures.  These debentures 
could be converted into 109,639 shares of common stock at a conversion rate of $4.15 per share.  Each 
debenture  bears  interest  at  an  annual  rate  of  eight  percent  (not  compounded)  with  accrued  interest  paid 
quarterly.  The debentures mature at various times from February 2007 to June 2007. 

Through  September  1,  2006,  the  Company  had  issued  purchase  orders  for  approximately  $260,000  of 
production  and  office  equipment.    The  Company  anticipates  financing  most  of  these  purchases  through 
the HAEIFC facility. 

In February 2006, the Company signed a license agreement with International Brachytherapy s.a. (“IBt”) 
covering North America and providing the Company with access to IBt’s Ink Jet production process and 
its  proprietary  polymer  seed  technology  for  use  in  brachytherapy  procedures  using  Cesium-131.    The 
Company paid license fees of $275,000 during 2006 and another payment of $225,000 was to be made in 
August 2006 pursuant to the license agreement.  Royalty payments based on net sales revenue are also 
required,  with  minimum  quarterly  royalties  ranging  from  $100,000  to  $200,000  and  minimum  annual 
royalties ranging from $400,000 to $800,000 over the term of the agreement. Management is engaged in 

38 

 
 
 
 
  
 
 
 
further negotiations with IBt and may ultimately terminate this agreement, although management has not 
yet decided on a course of action.  

As of the date of this report, the August 2006 payment has not been made as the Company has been in 
continued negotiations with IBt concerning the amount and timing of future royalty payments due to the 
low market acceptance of the polymer seed technology. 

In September 2006, the Company entered into a settlement agreement with a former executive.  As part of 
the  settlement  the  Company  agreed  to  pay  the  former  executive  $100,000  in  September  2006  and 
$215,000  in  January  2007.    As  the  former  executive’s  employment  with  the  Company  ended  in  March 
2006, the full amount of both payments was accrued as of June 30, 2006 in accrued payroll. 

The Company is subject to various local, state, and federal environmental regulations and laws due to the 
isotopes used to produce the Company’s product.  As part of normal operations, amounts are expended to 
ensure  that  the  Company  is  in  compliance  with  these  laws  and  regulations.    While  there  have  been  no 
reportable incidents, the Company believes that were it to discontinue or relocate its current production 
facilities then certain remediation expenses would be incurred.  Therefore, the Company has established 
an initial asset retirement obligation of $63,040 which represents the discounted cost of cleanup that the 
Company anticipates it will have to incur at the end of its equipment leases.  This amount was determined 
based on discussions with qualified production personnel and on historical evidence.  The Company does 
not believe that any amount of this accrual will be spent during fiscal year 2007. 

The  industry  that  the  Company  operates  in  is  subject  to  product  liability  litigation.    Through  its 
production  and  quality  assurance  procedures,  the  Company  works  to  mitigate  the  risk  of  any  lawsuits 
concerning its product.  The Company also carries product liability insurance to help protect it from this 
risk. 

The Company expects to finance its future cash needs through the sale of equity securities, solicitation to 
warrant  holders  to  exercise  their  warrants,  and  possibly  strategic  collaborations  or  debt  financing  or 
through  other  sources  that  may  be  dilutive  to  existing  shareholders.  If  the  Company  needs  to  raise 
additional money to fund its operations, funding may not be available to it on acceptable terms, or at all. 
If the Company is unable to raise additional funds when needed, it may not be able to market its products 
as planned or continue development and regulatory approval of its future products. If the Company raises 
additional funds through equity sales, these sales may be dilutive to existing investors. 

The Company has no off-balance sheet arrangements. 

Going Concern Issues 

Our financial statements have been prepared assuming we will continue as a going concern.  We had net 
losses  of  $8,218,130  and  $4,269,188  for  the  years  ended  June  30,  2006  and  2005  and  an  accumulated 
deficit of $13,546,261 at June 30, 2006.  These factors, among others, raise substantial doubt about our 
ability to continue as a going concern.  Our financial statements do not include any adjustment that might 
result from the outcome of this uncertainty.  Management plans to obtain the necessary financing and to 
continue  to  grow  revenues  in  order  to  achieve  profitability  but  no  assurances  can  be  given  that 
management will be able to obtain additional financing or grow revenues to a profitable level. 

If we are unable to generate profits and unable to obtain additional financing to meet our working capital 
requirements,  we  may  have  to  curtail  our  business  or  cease  operations.    Our  continuation  as  a  going 
concern is dependent upon our ability to generate sufficient cash flow to meet our obligations on a timely 
basis, to obtain additional financing, and, ultimately, to attain profitability.  Should any of these events 
not  occur,  the  accompanying  financial statements  will  be  adversely  effected  and  we  may  have  to  cease 
operations. 

Inflation

39 

 
 
 
 
 
 
 
 
 
  
 
 
Inflation and changing prices are not anticipated to have a significant impact on the future operations of 
the Company. 

Recent Accounting Pronouncements 

In December 2004, the FASB issued SFAS 123(Revised), Share-Based Payment (“SFAS 123R”), which 
replaces SFAS 123 and supersedes APB 25. On April 14, 2005, the Securities and Exchange Commission 
adopted  a  new  rule  that  amends  the  compliance  dates  for  SFAS 123R.  Under  the  new  rule,  we  are 
required to adopt SFAS 123R for the three-month period commencing July 1, 2006. SFAS 123R requires 
all  share-based  payments  to  employees,  including  grants  of  employee  stock  options,  be  recognized  as 
compensation  cost  in  the  financial  statements  based  on  their  fair  values.  As  such,  reporting  employee 
stock  options  under  the  intrinsic  value-based  method  prescribed  by  APB 25  will  no  longer  be  allowed. 
We  have  historically  elected  to  use  the  intrinsic  value  method  and  have  not  recognized  expense  for 
employee stock options granted.  We plan to adopt SFAS 123R on July 1, 2006 on a prospective basis. 
Upon adoption, all future employee stock option grants plus the balance of the non-vested grants awarded 
prior to July 1, 2006, will be expensed over the stock option vesting period based on the fair value at the 
date  the  options  are  granted.  We  estimate  that  the  impact  of  adoption  will  be  an  additional  expense  of 
$189,430 for employee stock options granted prior to June 30, 2006. 

In  May  2005,  the  FASB  issued  SFAS No. 154,  Accounting  Changes  and  Error  Corrections —  A 
Replacement  of  APB  Opinion  No. 20  and  FASB  Statement  No. 3 (“SFAS 154”).  SFAS 154  requires  the 
retrospective application to prior periods’ financial statements of changes in accounting principle, unless 
it  is  impractical  to  determine  either  the  period-specific  effects  or  cumulative  effect  of  the  accounting 
change. SFAS No. 154 also requires that a change in depreciation, amortization, or depletion method for 
long-lived non-financial assets be accounted for as a change in accounting estimate affected by a change 
in accounting principle. SFAS No. 154 is effective for accounting changes and corrections of errors made 
in fiscal years beginning after December 15, 2005 and we will adopt this provision, as applicable, during 
fiscal year 2007. 

ITEM 7 - FINANCIAL STATEMENTS

The required accompanying financial statements begin on page F-1 of this document. 

ITEM 8 - CHANGES IN AND DISAGREEMENTS WITH ACCOUNTANTS ON ACCOUNTING 
AND FINANCIAL DISCLOSURE

The Company’s Board of Directors engaged DeCoria, Maichel & Teague, P.S., the independent auditor 
for the Company's wholly-owned subsidiary, to be its new independent auditor effective  November 15, 
2005, which was also the effective date of S.W. Hatfield, CPA’s dismissal as the Company’s certifying 
accountant by the Board. 

Except for an expression of doubt about our ability to continue as a going concern, S.W. Hatfield, CPA's 
audit reports on the Company’s financial statements as of June 30, 2005 and September 30, 2004 did not 
contain an adverse opinion or disclaimer of opinion, nor were they qualified or modified as to uncertainty, 
audit scope or accounting principles.  

During  the  two  fiscal  years  ended  June  30,  2005  and  September  30,  2004,  and  through  November  15, 
2005  there  were  no  disagreements  with  S.W.  Hatfield,  CPA  on  any  matter  of  accounting  principles  or 
practices,  financial  statement  disclosure,  or  auditing  scope  or  procedures,  which  disagreements,  if  not 
resolved to the satisfaction of S.W. Hatfield, CPA would have caused it to make a reference to the subject 
matter of the disagreements in connection with its report; and there were no reportable events as described 
in Item 304(a)(1)(iv)(B) of Regulation S-B promulgated by the Securities and Exchange Commission (the 
“SEC”) pursuant to the Securities Exchange Act of 1934, as amended. 

40 

 
 
  
 
 
 
 
  
  
 
  
  
   
During the Company’s two most recent fiscal years and through November 15, 2005, the Company did 
not consult DeCoria, Maichel & Teague, P.S. with respect to the application of accounting principles to a 
specified transaction, either completed or proposed, or the type of audit opinion that might be rendered on 
the Company’s financial statements, or any other matters or reportable events listed in Item 304(a)(2) of 
Regulation S-B.  However, IsoRay Medical, Inc., the Company's wholly-owned subsidiary, has consulted 
with  DeCoria,  Maichel  &  Teague,  P.S.,  its  independent  auditor,  during  these  time  periods  solely  in 
connection with IsoRay Medical, Inc.'s financial statements. 

ITEM 8A - CONTROLS AND PROCEDURES

(a) Under the supervision and with the participation of our management, including our principal executive 
officer  and  principal  financial  officer,  we  conducted  an  evaluation  of  the  design  and  operation  of  our 
disclosure  controls  and  procedures,  as  such  term  is  defined  under  Rules 13a-14(c)  and  15d-14(c) 
promulgated under the Securities Exchange Act of 1934, as amended (the "Exchange Act"), as of June 30, 
2006.    Based  on  that  evaluation,  our  principal  executive  officer  and  our  principal  financial  officer 
concluded that the design and operation of our disclosure controls and procedures were effective in timely 
alerting them to material information required to be included in the Company's periodic reports filed with 
the  SEC  under  the  Exchange  Act.    The  design  of  any  system  of  controls  is  based  in  part  upon  certain 
assumptions  about  the  likelihood  of  future  events,  and  there  can  be  no  assurance  that  any  design  will 
succeed  in  achieving  its  stated  goals  under  all  potential  future  conditions,  regardless  of  how  remote.  
However,  management  believes  that  our  system  of  disclosure  controls  and  procedure  is  designed  to 
provide a reasonable level of assurance that the objectives of the system will be met. 

(b) In connection with the review of our consolidated financial statements for the period ended September 
30,  2005,  our  independent  registered  public  accounting  firm  advised  the  Board  of  Directors  and 
management  of  certain  significant  internal  control  deficiencies  that  they  considered  to  be,  in  the 
aggregate,  a  material  weakness.    In  particular,  our  independent  registered  public  accounting  firm 
identified the following weaknesses in our internal control system: (1) a lack of segregation of duties and 
(2)  a  lack  of  formal  procedures  relating  to  all  areas  of  financial  reporting.    The  independent  registered 
public accounting firm indicated that they considered these deficiencies to be reportable conditions as that 
term is defined under standards established by the American Institute of Certified Public Accountants.  A 
material weakness is a significant deficiency in one or more of the internal control components that alone 
or in the aggregate precludes our internal controls from reducing to an appropriately low level of risk that 
material  misstatements  in  our  financial  statements  will  not  be  prevented  or  detected  on  a  timely  basis.  
The  Company  considered  these  matters  in  connection  with  the  period  end  closing  of  accounts  and 
preparation of the related consolidated financial statements and determined that no prior period financial 
statements were materially affected by such matters.  Notwithstanding the material weaknesses identified 
by  our  independent  registered  public  accountants,  we  believe  that  the  financial  statements  and  other 
financial information included in this report, fairly present in all material respects, the financial condition, 
results of operation and cash flows of the Company as of, and for, the periods represented in this report.  

The size of the Company has previously prevented us from being able to employ sufficient resources at 
this  time  to  enable  us  to  have  an  adequate  level  of  supervision  and  segregation  of  duties  within  our 
internal control system.  Set forth below is a discussion of the significant internal control deficiencies that 
had not been remediated as of the end of the period covered by this report. 

Lack of segregation of duties.  Our size has prevented us from being able to employ sufficient resources 
to enable us to have an adequate level of segregation of duties within our internal control system.  There 
is one dedicated employee and three employees that work in accounting and other departments who are 
involved in the processing of transactions.  Due to the small employee base it is difficult to effectively 
segregate  accounting  duties.    While  we  strive  to  segregate  duties  as  much  as  practicable,  budgetary 
considerations have not previously allowed the addition of full time staff.  We are currently reorganizing 
the  accounting  department  to  more  effectively  segregate  duties  but  we  believe  additional  staff  is  still 
needed.  We will continue in our attempt to add staff to allow for fuller segregation of duties, although 
there is no certainty additional staff can be successfully hired.  As a result, this significant internal control 
41 

 
 
  
 
 
 
 
deficiency has not been remediated as of the end of the period covered by this report, nor do we know if 
we will be able to remediate this weakness during the upcoming quarter. 

Lack  of  formal  procedures  relating  to  all  areas  of  financial  reporting  including  a  lack  of  review  by 
management.  Due to the size of our Company, and as a consequence of the lack segregation of duties, we 
have not previously had formal month end close procedures.  As a result, there has been a lack of timely 
review  of  the  financial  statements.    However,  near  the  end  of  the  fiscal  year  our  controller  began 
developing monthly close procedures and these were partially implemented at June 30, 2006.  Although 
this  significant  internal  control  deficiency  has  not  been  fully  remediated  as  of  the  end  of  the  period 
covered by this report, we have made progress and expect to have this fully remediated by the end of the 
second quarter of fiscal year 2007. 

If we are unable to remediate the identified material weaknesses, there is a more than remote likelihood 
that a material misstatement to our SEC reports will not be prevented or detected, in which case investors 
could  lose  confidence  in  the  accuracy  and  completeness  of  our  financial  reports,  which  could  have  an 
adverse effect on our ability to raise additional capital and could also have an adverse effect on our stock 
price. 

ITEM 8B – OTHER INFORMATION 

There  were  no  items  required  to  be  disclosed  in  a  report  on  Form  8-K  during  the  fourth  quarter  of  the 
fiscal year ended June 30, 2006 that have not been properly disclosed on a Form 8-K filed with the SEC. 

PART III

ITEM 9 - DIRECTORS, EXECUTIVE OFFICERS, PROMOTERS AND CONTROL PERSONS; 
COMPLIANCE WITH SECTION 16(a) OF THE EXCHANGE ACT

In  conjunction  with  the  Merger,  and  effective  as  of  July  28,  2005  (the  closing  date  of  the  Merger), 
Thomas Scallen resigned from his positions as Chief Executive Officer and Chairman of the Board, Philip 
Rogers  resigned  from  his  position  as  President  and  a  director,  and  Wally  Bietak  resigned  from  his 
position as a director of the Company. 

Effective  as  of  July  28,  2005,  Roger  Girard  and  David  Swanberg  were  appointed  as  directors  by  the 
resigning Board, and, also effective as of July 28, 2005, they appointed Robert Kauffman, Thomas LaVoy 
and  Stephen  Boatwright  to  fill  the  remaining  three  vacant  Board  positions.    On  March  31,  2006,  the 
number of directors was increased to seven and Dwight Babcock and Albert Smith were appointed to fill 
the newly created positions. 

The  Board  has  established  an  Audit  Committee  consisting  of  Thomas  LaVoy,  (Chairman)  and  Robert 
Kauffman,  and  a  Compensation  Committee  consisting  of  Dwight  Babcock  and  Al  Smith.  No  other 
committees have been formed. 

The Audit Committee is responsible for assisting the Board of Directors in monitoring and oversight of 
(1)  the  integrity  of  the  Company’s  financial  statements  and  its  systems  of  internal  accounting  and 
financial  controls  and  (2)  the  independence  and  performance  of  the  Company’s  independent  auditors.  
The Board of Directors has determined that Mr. LaVoy and Mr. Kauffman are each an “audit committee 
financial expert” as defined in Item 401 of Regulation S-B promulgated by the Securities and Exchange 
Commission,  and  are  each  independent.    The  Board’s  conclusions  regarding  the  qualifications  of 
Mr. LaVoy as an audit committee financial expert were based on his service as a chief financial officer of 
a  public  company,  his  experience  as  a  certified  public  accountant  and  his  degree  in  accounting.    The 
Board’s conclusions regarding the qualifications of Mr. Kauffman as an audit committee financial expert 
were based on his service as a chief executive officer of multiple public companies, his active supervision 
of  the  principal  financial  and  accounting  officers  of  the  public  companies  for  which  he  served  as  chief 
executive officer, and his M.B.A. in Finance.   

42 

 
 
 
 
 
 
 
  
 
 
 
 
Effective as of July 28, 2005, Roger Girard was appointed as Chief Executive Officer and President of the 
Company and Michael Dunlop was appointed as Chief Financial Officer and Treasurer of the Company. 
Also  effective  July  28,  2005,  John  Hrobsky  was  appointed  Vice  President,  Sales  and  Marketing  and 
David Swanberg was appointed Secretary and Vice President-Operations.  

In March 2006, Mr. Hrobsky’s employment was terminated with the Company and in September 2006 the 
Company reached a settlement agreement with him. 

On September 7, 2006, Mr. Dunlop resigned from his position as Chief Financial Officer and Treasurer.  
Jonathan  Hunt,  formerly  controller  of  the  Company,  was  appointed  as  Chief  Financial  Officer  and 
Treasurer of the Company on September 7, 2006 to succeed Mr. Dunlop. 

Further information about the current directors and officers may be found below. 

The directors and executive officers serving the Company as of September 7, 2006 were as follows: 

Name 

 Age  Position Held 

Roger Girard 
Jonathan Hunt 
David Swanberg 

  63   Chairman, President, CEO 
  39   Chief Financial Officer – Treasurer 

50 

Executive Vice President – Operations and 
Corporate Secretary, Director 

  65   Director  
Robert Kauffman 
Thomas LaVoy 
  46   Director 
Stephen Boatwright   42   Director  
  58   Director 
Dwight Babcock 
  62   Director 
Albert Smith 
* For directors only  

Term* 

Annual 

Annual 

Annual 
Annual 
Annual 
Annual 
Annual 

Roger Girard – In addition to serving as President, Chairman and CEO for the Company, Mr. Girard is 
also  the  CEO,  President  and  Chairman  of  the  Board  of  IsoRay  Medical,  Inc.,  and  has  served  in  these 
positions  since  the  formation  of  IsoRay  Medical,  Inc.    Mr.  Girard  was  CEO  and  Chairman  of  IsoRay's 
predecessor company from August of 2003 until October 1, 2004. Mr. Girard has been actively involved 
in  the  management  and  the  development  of  the  management  team  at  IsoRay,  and  his  experienced 
leadership  has  helped  drive  IsoRay's  development  to  date.    From  June  1998  until  August  of  2003,  Mr. 
Girard  served  as  President  of  Strategic  Financial  Services,  a  business  consulting  company  based  in 
Seattle,  Washington  designed  to  help  wealthy  individuals  and  companies  with  strategic  planning  and 
financial  strategy.    Strategic  Financial  Services  previously  provided  its  services  to  a  medical  device 
company.  Mr. Girard served as its sole employee.  Mr. Girard also served as the managing partner for the 
Northwest  office  of  Capital  Consortium,  another  business  consulting  company  based  in  Seattle,  during 
this time.  Capital Consortium employed four people and analyzed business market potential for start-ups 
and  early  stage  companies.    Mr.  Girard  has  knowledge,  experience  and  connections  to private, 
institutional and public sources of capital and is experienced in managing and designing capital structures 
for  business  organizations  as  well  as  organizing  and  managing the  manufacturing  process,  distribution, 
sales, and marketing, based on his 35 years of experience.  

Jonathan  Hunt  –  Mr.  Hunt  has  over  10  years  of  finance  and  accounting  experience,  including  financial 
reporting,  SEC  knowledge,  and  operational  analysis.    Before  joining  IsoRay  earlier  this  year,  he  was 
employed by Hypercom Corporation, a global provider of electronic payment solutions and manufacturer 
of  credit  card  terminals,  serving  as  its  Assistant  Corporate  Controller  from  2005  to  2006.    His  finance 
background also includes serving as both a Manager and Director of Financial Reporting and a Director 
of Operational Planning and Analysis for Circle K Corporation and its affiliates from 2000 to 2005 and 
working for PricewaterhouseCoopers LLP from 1992 to 1999 where his last position held was Business 

43 

 
 
 
 
 
 
 
 
  
  
 
    
 
 
 
 
 
 
Assurance  Manager.    Mr.  Hunt  holds  Masters  of  Accountancy  and  Bachelor  of  Science  degrees  from 
Brigham Young University and is a Certified Public Accountant. 

David Swanberg - Mr. Swanberg has more than 22 years experience in engineering and materials science, 
nuclear waste and chemical processing, aerospace materials and processes, and environmental technology 
development and environmental compliance. Beginning in November 1995 and until January 2004, Mr. 
Swanberg  was  employed  full  time  as  Sr.  Chemical/Environmental  Engineer  for  Science  Applications 
International  Corporation  working  on  a  variety  of  projects  including  nuclear  waste  research  and 
development. Mr. Swanberg joined IsoRay's predecessor company in March of 1999 on a part-time basis 
and has held management positions in the IsoRay companies since 2000. Mr. Swanberg began full-time 
employment with IsoRay in February 2004. He has been instrumental in development of IsoRay's initial 
product,  the  Cs-131  brachytherapy  seed,  including  interfaces  with  technical,  regulatory,  and  quality 
assurance  requirements.  With  IsoRay  and  its  predecessor  companies,  he  has  managed  the  development 
and  production  of  radioactive  seeds  to  support  testing  to  meet  NRC  and  FDA  requirements,  provided 
technical guidance for characterization of the IsoRay seed to meet AAPM Task Group 43 protocols, and 
coordinated  production  and  testing  of  non-radioactive  seeds  to  conform  to  ISO  standards  for 
brachytherapy  devices.  He  is  President  of  the  Nuclear  Medicine  Research  Council.  He  holds  an  MS  in 
Chemical Engineering, is a licensed Chemical Engineer, and a certified Level II Radiation Worker. 

Robert Kauffman – Mr. Kauffman has served as Chief Executive Officer and Chairman of the Board of 
Alanco  Technologies,  Inc.  (NASDAQ:  ALAN),  an  Arizona-based  information  technology  company, 
since  July  1,  1998.  Mr. Kauffman  was  formerly  President  and  Chief  Executive  Officer  of  NASDAQ-
listed Photocomm, Inc., from 1988 until 1997 (since renamed Kyocera Solar, Inc.). Photocomm was the 
nation’s largest publicly owned manufacturer and marketer of wireless solar electric power systems with 
annual revenues in excess of $35 million. Prior to Photocomm, Mr. Kauffman was a senior executive of 
the Atlantic Richfield Company (ARCO) whose varied responsibilities included Senior Vice President of 
ARCO  Solar,  Inc.,  President  of  ARCO  Plastics  Company  and  Vice  President  of  ARCO  Chemical 
Company.  Mr. Kauffman  earned  an  M.B.A.  in  Finance  at  the  Wharton  School  of  the  University  of 
Pennsylvania, and holds a B.S. in Chemical Engineering from Lafayette College, Easton, Pennsylvania. 

Thomas  LaVoy  –  Mr.  LaVoy  has  served  as  Chief  Financial  Officer  of  SuperShuttle  International,  Inc., 
since July 1997 and as Secretary since March 1998. SuperShuttle is one of the largest providers of shuttle 
services  in  major  cities  throughout  the  West  and  Southwest  regions  of  the  United  States.  He  has  also 
served as a director of Alanco Technologies, Inc. (NASDAQ: ALAN) since 1998. From September 1987 
to February 1997, Mr. Lavoy served as Chief Financial Officer of NASDAQ-listed Photocomm, Inc. Mr. 
Lavoy was a Certified Public Accountant with the firm of KPMG Peat Marwick from 1980 to 1983. Mr. 
Lavoy has a Bachelor of Science degree in Accounting from St. Cloud University, Minnesota, and is a 
Certified Public Accountant. 

Stephen Boatwright – Mr. Boatwright has been a member of Keller Rohrback, PLC in Phoenix, Arizona 
since  January  2005.  From  1997  through  January  2005,  Mr. Boatwright  was  a  partner  at  Gammage  & 
Burnham, PLC, also in Phoenix, Arizona. Throughout his career, he has provided legal counsel to both 
private and public companies in many diverse industries. In recent years, Mr. Boatwright’s legal practice 
has  focused  on  representing  technology,  biotechnology,  life  science  and  medical  device  companies  for 
their securities, corporate and intellectual property licensing needs. Mr. Boatwright earned both a J.D. and 
an  M.B.A.  from  the  University  of  Texas  at  Austin,  and  holds  a  B.A.  in  Philosophy  from  Wheaton 
College. 

Dwight  Babcock  –  Mr.  Babcock  has  served  as  Chairman  and  Chief  Executive  Officer  of  Apex  Data 
Systems,  Inc.  an  information  technology  company,  since  1975.    Apex  Data  Systems  automates  the 
administration and claims adjudication needs of insurance companies both nationally and internationally.  
Mr. Babcock was formerly President and CEO of Babcock Insurance Corporation (BIC) from 1974 until 
1985.    BIC  was  a  nationally  recognized  Third  Party  Administrator  operating  within  35  states.    Mr. 
Babcock  has  knowledge  and  experience  in  the  equity  arena  and  has  participated  in  various  activities 

44 

 
 
 
 
within the venture capital, private and institutional capital markets.  Mr. Babcock studied marketing and 
economics  at  the  University  of  Arizona  where  he  currently  serves  on  the  University  of  Arizona 
Astronomy Board. 

Albert  Smith  –  Mr.  Smith  was  the  co-founder  of  and  served  as  Vice  Chairman  of  CSI  Leasing,  Inc.,  a 
private  computer  leasing  company  from  1972  until  March  2005.    He  founded  Extreme  Video,  LLC  a 
private video conferencing company in Scottsdale, Arizona in December 2005 where he presently serves 
as CEO and President.  Mr. Smith presently serves as a director for Center for Arizona Policy (Scottsdale) 
and  Doulos  Ministries  (Denver).    Mr.  Smith  has  extensive  experience  in  marketing  and  sales  having 
managed  a  national  sales  force  of  over  fifty  people  while  at  CSI  Leasing,  Inc.    Mr.  Smith  has  a  BS  in 
Business Administration from Ferris State College. 

The  Company’s  Directors,  as  named  above,  will  serve  until  the next  annual  meeting  of  the Company’s 
stockholders or until their successors are duly elected and have qualified.  Directors will be elected for 
one-year terms at the annual stockholders meeting.  Officers will hold their positions at the pleasure of the 
board of directors, absent any employment agreement, of which none currently exists or is contemplated.  
There is no arrangement or understanding between any of the directors or officers of the Company and 
any other person pursuant to which any director or officer was or is to be selected as a director or officer, 
and  there  is  no  arrangement,  plan  or  understanding  as  to  whether  non-management  shareholders  will 
exercise their voting rights to continue to elect the current directors to the Company’s board.  There are 
also  no  arrangements,  agreements  or  understandings  between  non-management  shareholders  that  may 
directly or indirectly participate in or influence the management of the Company’s affairs. 

There are no agreements or understandings for any officer or director to resign at the request of another 
person, and none of the officers or directors are acting on behalf of, or will act at the direction of, any 
other person. 

Significant Employees 

Certain significant employees of our subsidiary, IsoRay Medical, Inc., and their respective ages as of the 
date of this report are set forth in the table below. Also provided is a brief description of the experience of 
each significant employee during the past five years.  

Name 
Lane Bray 
Garrett Brown 
Oleg Egorov 
Lisa Mayfield 
Keith Welsch 
Lori Woods 

   Age     Position Held and Tenure 

78     Chemist 
43     Chief Technology Officer 
36    Director of Radiochemical Development 
37    Director of Operations 
59     Chief Quality Officer 
44    Vice President 

Lane  Bray  –  Mr. Bray  is  known  nationally  and  internationally  as  a  technical  expert  in  separations, 
recovery,  and  purification  of  isotopes  and  is  a  noted  authority  in  the  use  of  cesium  and  strontium  ion 
exchange for Department of Energy’s West Valley and Hanford nuclear waste cleanup efforts. In 2000, 
Mr. Bray  received  the  ’Radiation  Science  and  Technology’  award  from  the  American  Nuclear  Society. 
Mr. Bray has authored or co-authored over 110 research publications, 12 articles for 9 technical books, 
and  holds  24  U.S.  and  foreign  patents.  Mr. Bray  patented  the  USDOE/PNNL  process  for  purifying 
medical grade Yttrium-90 that was successfully commercialized in 1999. Mr. Bray also recently invented 
and  patented  the  proprietary  isotope  separation  and  purification  process  that  is  assigned  to  IsoRay. 
Mr. Bray  was  elected  ’Tri-Citian  of  the  Year’  in  1988,  nominated  for  ’Engineer  of  the  Year’  by  the 
American  Nuclear  Society  in  1995,  and  was  elected  ’Chemist  of  the  Year  for  1997’  by  the  American 
Chemical  Society,  Eastern  Washington  Section.  Mr. Bray  retired  from  the  Pacific  Northwest  National 
Laboratory in 1998. Since retiring in 1998, Mr. Bray worked part time for PNNL on special projects until 
devoting all of his efforts to IsoRay in 2004. Mr. Bray has been a Washington State Legislator, a Richland 
City Councilman, and a Mayor of Richland. Mr. Bray has a B.A. in Chemistry from Lake Forest College. 
45 

 
 
 
 
 
 
  
  
  
  
 
 
  
 
  
instrumental 

implant  device 

in  bringing  a  new  brachytherapy  seed 

Garrett  Brown  –  Dr. Brown  was  Manager  of  Radiochemistry  -  Hot  Cell  Operations  for  International 
Isotopes, Inc., a major radiopharmaceutical and medical device startup company, from January 1998 until 
May  1999  and  was 
to 
commercialization.  Dr. Brown’s  responsibilities  included  hands-on  radiological  work  in  fume  hoods, 
glove  boxes  and  remote  manipulator  hot  cells,  process  definition,  research,  development,  installation, 
optimization, waste minimization, procedure documentation, facility design and training. Dr. Brown also 
served as the technical interface to executive management for business development, shipping/receiving, 
QA/QC,  facilities  and  marketing/sales.  Prior  to  that,  Dr. Brown,  as  a  Senior  Research  Scientist  at  the 
Pacific  Northwest  National  Laboratory,  was  responsible  for  the  weekly  production  of  multi-Curie 
quantities of medical grade Y-90, and research programs to develop high tech sorbents for separation of 
Cs-137, Sr-90 and Tc-99 from high-level radioactive wastes stored at the Hanford Nuclear Reservation. 
From  May  1999  to  the  present,  Dr. Brown  has  been  a  technical  consultant  with  GNB  Technical 
Consultants.  Dr. Brown  has  co-authored  numerous  technical  publications  in  the  field.  Dr. Brown  has  a 
Ph.D.  in  Analytical  Chemistry  and  BS  in  Chemistry,  cum  laude.  He  has  served  as  IsoRay’s  Chief 
Technical Officer since May of 2000. In March 2004, Dr. Brown was certified as a Radiological Safety 
Officer. 

Oleg  Egorov  –  Dr.  Egorov  is  recognized  nationally  and  internationally  for  his  work  in  radiochemistry, 
radioanalytical chemistry, analytical chemistry and instrumentation. Prior to joining IsoRay in December 
of  2005  as  Director  of  Radiochemical  Development,  Dr.  Egorov  worked  from  May  1998  as  a  Senior 
Research Scientist at the Pacific Northwest National Laboratory (PNNL). Prior to that time, he served the 
Environmental  Molecular  Sciences  Laboratory  at  PNNL  as  a  Graduate  Research  Fellow,  from  August 
1994 to May 1998, and as a Graduate Research Assistant to the University of Washington’s Center for 
Process Analytical Chemistry from September 1992 to August 1993. Former positions included a tenure 
as a Research Engineer at the Department of Radiochemistry at the Moscow State University, Moscow, 
Russia between September 1998 to August 1992, and Field Chemist at the Institute of Volcanology, at the 
Russian  Academy  of  Science  at  Petropavlovsk-Kamchatsky,  Russia,  during  the  summers  of  1989  and 
1990 concurrent to studies that lead to his acquisition of Master of Science in Radiochemistry from the 
Moscow State University. During his tenure at PNNL, Dr. Egorov had led world-class basic and applied 
R&D programs directed at new chemistries and instrumentation for automated production of short-lived 
medical  isotopes  for  the  treatment  of  cancer,  automated  process  monitoring,  radionuclide  sensors  for 
groundwater monitoring, and laboratory automation. Dr. Egorov pioneered the application of flow-based 
techniques  for  automating  radiochemical  analyses  of  nuclear  wastes,  renewable  surface  sensing  and 
separations,  and  equilibration-based  radionuclide  sensing.  He  has  authored/co-authored  numerous  peer-
reviewed  publications  in  these  areas,  including  several  book  chapters.  Dr.  Egorov  holds  four 
U.S./international patents, three of which have been licensed to industry. Dr. Egorov was a recipient of 
numerous outstanding performance and key contributor awards. In 2003, Dr. Egorov was nominated for 
the  American  Chemical  Society  Arthur  F.  Findeis  Award  for  Achievements  by  a  Young  Analytical 
Scientist. In 2004, Dr. Egorov was a recipient of a Federal Laboratory Consortium Award for Excellence 
in  Technology  Transfer  for  “Alpha  Particle  Immunotherapy  for  Treating  Leukemia  and  Solid-Tumor 
Metastases”.  Dr.  Egorov  holds  a  M.S.  in  Radiochemistry  from  Moscow  State  University,  Moscow, 
Russia; a M.S. in Environmental and Analytical Chemistry and a Ph.D. in Analytical Chemistry from the 
University of Washington. 

Lisa Mayfield - Lisa Mayfield has over ten years of commercial healthcare sales, marketing and business 
development  experience.  Between  December  1993  and  August  2004,  Ms.  Mayfield  has  held  senior 
management  positions  in  the  pharmaceutical  and  medical  device  and  diagnostics  sectors  of  Johnson  & 
Johnson  as  well  as  at  J&J  Corporate.  During  her  time  at  J&J  and  prior  to  joining  IsoRay  in  December 
2005,  Ms.  Mayfield  was  responsible  for  implementing  positive  business  results  in  over  11  different 
therapeutic markets. After leaving J&J and prior to joining IsoRay, Ms. Mayfield worked as a consultant 
to various healthcare companies in the radioisotope and oncology markets. As a result of her exposures, 
Ms.  Mayfield  has  built  a  wealth  of  knowledge  about  the  healthcare  marketplace  as  a  whole  and 
complements  this  knowledge  with  a  comprehensive  understanding  of  internal  operations.  Ms.  Mayfield 
has  been  responsible  for  best  practices  for  product  development,  branding,  forecasting,  regulatory 
46 

 
 
 
 
 
compliance,  reimbursement  and  strategic  planning.  During  her  time  at  IsoRay,  Ms.  Mayfield  has  been 
able to successfully implement new policies and procedures that facilitate growth as well as provide top 
level  guidance  over  strategic  business  operations.  Ms.  Mayfield  is  acting  Director  of  Operations  at 
IsoRay. Ms. Mayfield holds a Bachelors of Science in Economics from the University of Washington.   

Keith  Welsch  –  Mr. Welsch  is  a  quality  control  professional  with  experience  in  a  wide  range  of 
organizations  and  disciplines  including  the  nuclear,  aerospace,  environmental  restoration,  construction, 
tubing, steel and aluminum industries. Mr. Welsch managed the registration of a plant to ISO 9002:1994 
and  subsequently  transitioned  the  facility  to  ISO  9001:2000  and  conducted  continuous  improvement 
actions.  These  included  statistical  process  control,  six  sigma,  lean  manufacturing,  and  total  preventive 
maintenance  programs.  Mr. Welsch’s  other  significant  achievements  include  facilitation  of  quality 
improvement  and  stand  down  teams,  innovative  education  training  manager,  management  of  records 
review for two nuclear sites, management of audit programs and corrective-action systems, and teaching 
safety,  technical,  and  quality  courses.  He  has  earned  the  Certified  Quality  Auditor,  Certified  Quality 
Technician  and  Certified  Quality  Improvement  Associate  certifications  from  the  American  Society  for 
Quality.  Prior  to  joining  IsoRay  in  2004,  Mr. Welsch  served  as  Quality  Assurance  Manager  for  Kaiser 
Aluminum  Products  of  Richland,  Washington  since  1997.  Mr. Welsch  received  a  BA  in  Business 
Administration from Washington State University. 

Lori Woods – Ms. Woods joined the Company in July 2006 and has over 20 years experience in medical 
device  technology  and  healthcare  services.    Ms.  Woods  served  as  the  CEO  of  Pro-Qura,  a  medical 
services company focusing on brachytherapy quality assurance and education, from 2002 until joining the 
Company.    During  her  tenure  at  Pro-Qura,  Ms.  Woods  developed  its  business  strategy,  expanded  its 
business  portfolio  in  quality  assurance  beyond  prostate  brachytherapy  into  other  areas  of  cancer,  and 
increased  funding  by  50%.    Prior  to  this,  she  served  as  the  Vice  President  of  Sales  at  ATI  Medical  in 
2002,  Vice  President  of  Sales  –  West  and  Vice  President  of  Marketing  and  Business  Development  for 
Imagyn Medical Technologies from 2000 to 2002, Director of Business Development for Seattle Prostate 
Institute from 1998 to 2000, and Regional Vice President and Regional Manager of Interdent from 1994 
to 1998.  Ms. Woods holds a Bachelor of Science degree in Business Administration – Marketing from 
Loma Linda University. 

Section 16(a) Beneficial Ownership Reporting Compliance

Section  16(a)  of  the  Securities  Exchange  Act  of  1934  (the  “Exchange  Act”)  requires  the  Company’s 
directors and executive officers, and persons who beneficially own more than ten percent of a registered 
class of our equity securities, to file with the Securities and Exchange Commission (the “Commission”) 
initial  reports  of  beneficial  ownership  and  reports  of  changes  in  beneficial  ownership  of  our  Common 
Stock.  The rules promulgated by the Commission under Section 16(a) of the Exchange Act require those 
persons to furnish us with copies of all reports filed with the Commission pursuant to Section 16(a).  The 
information in this section is based solely upon a review of Forms 3, Forms 4, and Forms 5 received by 
us. 

We believe that IsoRay’s executive officers, directors and 10% shareholders timely complied with their 
filing requirements during the year ended June 30, 2006 except as follows: Roger Girard (one Form 3), 
Robert  Kauffman  (one  Form  3  and  one  Form  4),  John  Hrobsky  (one  Form  3),  Karen  Thompson  (one 
Form 3), Stephen Boatwright (one Form 4), Thomas LaVoy (one Form 4), Michael Dunlop (one Form 4), 
David Swanberg (one Form 4), Dwight Babcock (one Form 3 and one Form 4), and Albert Smith (one 
Form 3 and one Form 4). We believe all of these forms have been filed as of the date of this Report. 

Code of Ethics

We have adopted a Code of Conduct and Ethics that applies to all of our officers, directors and employees 
and a separate Code of Ethics for Chief Executive Officer and Senior Financial Officers that supplements 
our Code of Conduct and Ethics.  The Code of Conduct and Ethics was previously filed as Exhibit 14.1 to 
our Form 10-KSB for the period ended June 30, 2006, and the Code of Ethics for Chief Executive Officer 
47 

 
 
 
 
 
  
 
 
  
and  Senior  Financial  Officers  was  previously  filed  as  Exhibit  14.2  to  this  same  report.    The  Code  of 
Ethics  for  Chief  Executive  Officer  and  Senior  Financial  Officers  is  also  available  to  the  public  on  our 
website at http://www.isoray.com/ethicsForCeo.htm.  Each of these policies comprises written standards 
that are reasonably designed to deter wrongdoing and to promote the behavior described in Item 406 of 
Regulation  S-B  promulgated  by  the  Securities  and  Exchange  Commission.    Each  of  these  policies  was 
adopted after the period ended June 30, 2005. 

ITEM 10 - EXECUTIVE COMPENSATION

The following summary compensation table sets forth information concerning compensation for services 
rendered in all capacities during our past three fiscal years awarded to, earned by or paid to each of the 
following executive officers (the “Executive Officers”).  None of the Company’s executive officers, other 
than those listed below, received compensation in fiscal year 2006 in excess of $100,000. 

Name and Principal Position

Fiscal Year(1)

Salary

Bonus

  Restricted 
Stock 
Awards

Securities 
Underlying 
Options

All Other 
Compensation

Annual Compensation

Long-Term Compensation Awards

Roger Girard, Chief Executive 

Officer(5)

Thomas Scallen, Former Chief 

Executive Officer(2)

David Swanberg, Executive Vice 

President – Operations 

Barry Griffiths, Former Western 

Area Director 

Curtis Ellis, Midwest Area 

Director 

2006 
2005 
2004 

2006 
2005 
2004 

2006 
2005 
2004 

2006 
2005 
2004 

2006 
2005 
2004 

   $
   $
   $

199,231
113,958
71,031

--
--
--

120,000
54,746
32,515

124,800
79,241
15,000

168,115
--
--

$

$
$

$

$
$
$

$
$
$

$

--  
--  
--   $

--
--  
--   $

25,000 
-- 
-- 

55,000 
52,500 
-- 

39,125 
-- 
-- 

--     
--     
9,900     

--
--
7,871 (4)   

--    
--     
--     

-- 
-- 
-- 

-- 
-- 
-- 

--  
--  
513,840  

--
-- 
--  

--
--
--  

  $

--  
50,000 (3)
--  

150,000 
--  
--  

-- 
252,708 
-- 

84,236 
-- 
-- 

-- 
-- 
-- 

-- 
-- 
-- 

-- 
-- 
-- 

(1)  Fiscal  year  2006  consisted  of  the  period  from  July  1,  2005  to  June  30,  2006;  fiscal  year  2005 
consisted  of  the  period  from  October  1,  2004  through  June  30,  2005;  and,  fiscal  year  2004 
consisted of the year ended September 30, 2004. 

(2)  Mr. Scallen  served  as  our  Chief  Executive  Officer  during  the  listed  fiscal  years  and  until  his 

resignation effective July 28, 2005. 

(3)  Represents a $50,000 cash payment in June 2005 to Mr. Scallen in settlement of all accrued but 

unpaid compensation. 

(4)  Represents the issuance of 787,100 shares of restricted common stock as compensation associated 
with  the  conversion  of  the  outstanding  notes  payable  and  accrued  interest  payable.    This 
transaction  was  valued  at  approximately  $7,781,  which  was  equal  to  the  “fair  value”  of  the 
Company’s common stock on the conversion date.  The Company relied upon Section 4(2) of the 
Securities Act of 1933, as amended, for an exemption from registration for this issuance. 

(5)  Mr. Girard did not begin serving as our CEO until July 28, 2005, but he has served as CEO of our 
subsidiary and its predecessor company since August 2003.  The compensation listed was paid to 
Mr. Girard by IsoRay or its predecessor company. 

48 

 
 
 
  
 
 
 
 
 
  
 
 
 
 
  
 
    
  
 
 
 
  
     
     
 
 
 
 
 
 
 
 
 
 
 
 
 
     
 
 
 
 
 
  
  
 
 
 
 
  
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Option/SAR Grants in Last Fiscal Year 
The  following  table  sets  forth  information  concerning  grants  of  stock  options  to  the  Executive  Officers 
during the fiscal year ended June 30, 2006. 

Name 

David Swanberg 
Curtis Ellis 

Number of 
Securities 
Underlying 
Options 

Percent of total 
options Granted to 
Employees in Fiscal 
Year 

Exercise Price 
($/Share) 

150,000 
84,236 

23.45% 
13.17% 

$ 
$ 

1.00 
4.15 

Expiration Date 
8/18/2015 
8/01/2015 

Aggregated Option Exercises in Last Fiscal Year and Fiscal Year End Option Values
The  following  table  sets  forth  the  number  of  shares  covered  by  unexercised  stock  options  held  by  the 
Executive Officers as of June 30, 2006, and the value of "in-the-money" stock options, which represents 
the  positive  spread  between  the  exercise  price  of  a  stock  option  or  warrant  and  the  market  price  of  the 
shares subject to such option or warrant as of June 30, 2006.  

Number of 
Shares 
Acquired 
on 
Exercise 

0 
0 
0 
0 

Name 
Roger Girard 
David Swanberg 
Barry Griffiths 
Curtis Ellis 

Employment Agreements 

Number of Securities 
Underlying Unexercised 
Options at Fiscal Year-End 

Value of Unexercised In-the-
Money Options at Fiscal Year-
End 

Value 
Realized 
$ 
$ 
$ 
$ 

0 
0 
0 
0 

Exercisable 
513,840 
150,000 
84,236 
0 

Unexercisable 

Exercisable 

0  $ 
0  $ 
168,472  $ 
84,236  $ 

1,186,970  $ 
375,000  $ 
194,585  $ 
N/A  $ 

Unexercisable 
N/A 
N/A 
389,170 
N/A 

The  Company  entered  into  an  employment  agreement  with  Roger  Girard,  its  Chief  Executive  Officer, 
effective  October  6,  2005  (the  "Girard  Agreement").    The  term  of  the  Girard  Agreement  is  through 
October 6, 2009, and will automatically extend for an additional one year term on each anniversary date 
unless the term is modified or terminated in accordance with the terms of the Girard Agreement at least 
ninety  days  prior  to  a  given  anniversary  date.    The  Girard  Agreement  provides  for  a  base  salary  of 
$300,000 which was effective July 1, 2006. Mr. Girard is also entitled to participate in any benefit plans 
provided to key executives of the Company, and to a bonus at the discretion of the Board of Directors. 

The Company has not entered into employment agreements with any other officers as of the date of this 
filing. 

Director Compensation

Since July 28, 2005, we have paid our directors who are not employees of the Company a director’s fee of 
$1,000 per meeting attended, plus expenses.  We also granted each non-employee director immediately 
exercisable options to purchase 100,000 shares of our common stock during the fiscal year ended June 30, 
2006.  Robert  Kauffman,  Thomas  LaVoy  and  Stephen  Boatwright  each  received  100,000  options  at  an 
exercise price of $2.00 per share. Dwight Babcock and Al Smith each received 100,000 options, 50,000 
of which are exercisable at $6.30 per share and 50,000 of which are exercisable at $3.80 per share.  

The Company’s directors did not receive any cash compensation during the nine months ended June 30, 
2005 or either of the respective years ended September 30, 2004 or 2003. 

49 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
ITEM  11 
MANAGEMENT

-  SECURITY  OWNERSHIP  OF  CERTAIN  BENEFICIAL  OWNERS  AND 

The following tables set forth certain information regarding the beneficial ownership of the Company’s 
common stock and preferred stock as of September 15, 2006 for (a) each person known by the Company 
to  be  a  beneficial  owner  of  five  percent  or  more  of  the  outstanding  common  or  preferred  stock  of  the 
Company, (b) each executive officer, director and nominee for director of the Company, and (c) directors 
and  executive  officers  of  the  Company  as  a  group.    As  of  September  15,  2006,  the  Company  had 
15,802,394 shares of common stock and 122,543 shares of preferred stock outstanding. 

Name and Address of Beneficial Owner (1)

Roger Girard, Chief Executive Officer, President and 
Chairman 
Jonathan Hunt, Chief Financial Officer 
Michael Dunlop, Former Chief Financial Officer 
David Swanberg, Executive Vice President and 
Director 
Robert Kauffman, Director 
Thomas LaVoy, Director 
Stephen Boatwright, Director(3)
Dwight Babcock, Director(4)
Albert Smith, Director 
Thomas K. Scallen, Former Chief Executive 
Officer(5) 
MicroCapital Fund LP and MicroCapital Fund Ltd(6)
All Officers and Directors as a group (8 persons) 

Derivative 
Securities 
Exercisable or 
Convertible 
Within 60 
Days of 
September 15, 
2006 

Amount of 
Common 
Shares 
Owned 

Total 
Common 
Shares 
Beneficially 
Owned 

Percent of 
Common Shares 
Owned(2)

368,532  
-- 
138,050  

324,327  
43,802  
8,423  
--  

42,403
108,947

513,840  
-- 
145,000  

150,000  
150,000  
150,000  
234,236  
150,000
150,000

882,372  
-- 
 283,050  

 474,327  
193,802  
 158,423  
234,236  
192,403
258,947

317,442  

1,200,000 
896,434  

--
1,200,000 
1,498,076  

 317,442  
2,400,000 
2,394,510  

5.41%
--%
1.77 %

2.97%
1.21%
0.99%
1.46%
1.21%
1.62%

2.01%
14.12%
13.84%

(1)  Except as otherwise noted, the address for each of these individuals is c/o IsoRay, Inc., 350 Hills St., Suite 

106, Richland, Washington 99354. 

(2)  Percentage  ownership  is  based  on  15,802,394  shares  of  Common  Stock  outstanding  on  September  15, 
2006.  Shares  of  Common  Stock  subject  to  stock  options,  warrants  or  convertible  debentures  which  are 
currently exercisable/convertible or will become exercisable/convertible within 60 days after September 15, 
2006 are deemed outstanding for computing the percentage ownership of the person or group holding such 
options,  but  are  not  deemed  outstanding  for  computing  the  percentage  ownership  of  any  other  person  or 
group. 

(3)  Mr. Boatwright’s options include 84,236 options held by an entity controlled by Mr. Boatwright. 
(4)  Mr. Babcock’s common shares include 2,695 shares owned by his spouse. 
(5)  Mr. Scallen’s address is 4701 IDS Center, Minneapolis, MN 55302. 
(6)  MicroCapital Fund LP and MicroCapital Fund Ltd’s address is 1285 Avenue of the Americas, New York, 

NY 10019. 

50 

 
 
  
 
 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
 
  
  
  
  
  
 
 
 
  
 
 
  
  
 
Preferred Stock Share Ownership as of September 15, 2006

Name and Address of Beneficial Owner 

Aissata Sidibe(2)
Daniel MacKay(3)
John Arvid Forsman(4)
William and Karen Thompson Trust(5)
Jamie Granger(6)
James Hartley(7)
Hostetler Living Trust(8)
Forest Ridge Properties Ltd(9)

Options or 
Warrants 
Exercisable 
Within 60 
Days of 
August 31, 
2006 

   Amount of 
Preferred 
Shares 
Owned 

Total 
Preferred 
Shares 
Beneficially 
Owned 

Percent of 
Preferred 
Shares 
Owned(1)

35,546  
18,015 
14,218 
14,218 
10,529 
9,479 
9,479 
6,220  

--  
-- 
-- 
-- 
-- 
-- 
-- 
--  

35,546  
18,015 
14,218 
14,218 
10,529 
9,479 
9,479 
6,220  

29.01%
14.70%
11.60%
11.60%
8.59%
7.74%
7.74%
5.08%

(1)  Percentage  ownership  is  based  on  122,543  shares  of  Preferred  Stock  outstanding  on  August  31,  2006. 
Shares  of  Preferred  Stock  subject  to  stock  options  or  warrants  which  are  currently  exercisable  or  will 
become  exercisable  within  60  days  after  September  15,  2006  are  deemed  outstanding  for  computing  the 
percentage  ownership  of  the  person  or  group  holding  such  options,  but  are  not  deemed  outstanding  for 
computing the percentage ownership of any other person or group. 
(2)  The address of Ms. Sidibe is 229 Lasiandra Ct, Richland, WA 99352. 
(3)  The address of Mr. MacKay is 41 NW Sierra Drive, Camas, WA 98607. 
(4)  The address of Mr. Forsman is 659 Alden Lane, Livermore, CA 94550. 
(5)  The address of the William and Karen Thompson Trust is 285 Dondero Way, San Jose, CA 95119. 
(6)  The address of Jamie Granger is 53709 South Nine Canyon Road, Kennewick, WA 99337. 
(7)  The address of Mr. Hartley is 1675 April Loop, Richland, WA 99352. 
(8)  The address of the Hostetler Living Trust is 9257 NE 175th Street, Bothell, WA 98011. 
(9)  The address of Forest Ridge Properties Ltd is 630 Montreal Street, Apt. 1002, Victoria, BC V8V 4Y2. 

No officers or directors beneficially own shares of Preferred Stock. 

ITEM 12 - CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

Through  June  30,  2005,  the  Company’s  former  Chief  Executive  Officer,  Thomas  K.  Scallen,  advanced 
the  Company  an  aggregate  of  approximately  $44,500  to  support  operations,  settle  outstanding  trade 
accounts payable and provide working capital.  The advance was repayable upon demand and was non-
interest bearing and was unsecured.  Effective June 30, 2005, with the anticipation of the consummation 
of the reverse acquisition transaction with IsoRay Medical, Inc., as previously discussed, these advances 
were forgiven and reclassified as additional paid-in capital in the accompanying financial statements as of 
that date. 

Mr. Stephen  Boatwright,  a  Company  director,  has  been  actively  involved  in  providing  various  legal 
services to the Company, IsoRay Medical, Inc. and IsoRay Medical, Inc.’s predecessors through the law 
firms of Gammage and Burnham and Keller Rohrback, PLC.  From September 2004 until January 2005, 
Gammage  and  Burnham  received  approximately  $141,000  as  payment  for  legal  services  performed  for 
IsoRay Medical, Inc. and its predecessors.  From February 2005 though June 30, 2005, IsoRay Medical, 
Inc. paid Keller Rohrback, PLC approximately $144,000 for legal services.  During the fiscal year ended 
June 30, 2006, the Company paid Keller Rohrback, PLC approximately $390,000 for legal services.  In 
addition, the Company had accrued at June 30, 2006 approximately $77,000 in legal fees to be paid.  In 
exchange for consulting services including providing advice to IsoRay Medical, Inc. as to the structure of 
organization  and  compensation  arrangements  with  employees  and  also  in  connection  with  developing 
various policies and procedures, Quatsch Ventures, LLC, an entity controlled by Mr. Boatwright, received 
options to purchase 84,236 shares of our common stock in 2004.  

51 

 
 
  
  
  
  
  
     
 
  
 
  
     
  
  
 
 
 
 
 
 
  
 
 
 
 
 
 
IsoRay  Medical,  Inc.’s  patent  rights  to  its  Cesium-131  process  were  acquired  from  Lane  Bray,  a 
shareholder  of  the  Company,  and  are  subject  to  a  1%  royalty  on  gross  profits  and  certain  contractual 
restrictions.    Pursuant  to  the  royalty  agreement,  the  Company  must  also  pay  a  royalty  of  2%  of  Gross 
Sales,  as  defined,  for  any  sub-assignments  of  the  aforesaid  patented  process  to  any  third  parties.    The 
royalty  agreement  will  remain  in  force  until  the  expiration  of  the  patents  on  the  assigned  technology, 
unless earlier terminated in accordance with the terms of the underlying agreement.  To date, there have 
been no product sales incorporating the technology and there is no royalty due pursuant to the terms of the 
agreement. 

On January 16, 2005, in addition to certain other shareholders, the following officers and directors of the 
Company  were  awarded  shares  of  common  stock  for  guaranteeing  a  loan  with  the  Benton  Franklin 
Economic Development District (“BFEDD”) in the amount of $230,000, which was funded in December 
2004,  and  a  line  of  credit  with  Columbia  River  Bank  in  the  amount  of  $395,000:  Michael  Dunlop 
guaranteed $15,000 of the BFEDD loan and $30,000 of the Columbia River Bank line of credit, for which 
he received 12,888 post-merger shares; Roger Girard guaranteed $20,000 of the BFEDD loan, for which 
he received 5,728 post-merger shares; John Hrobsky guaranteed $15,000 of the Columbia River Bank line 
of credit, for which he received 4,296 post merger shares; and David Swanberg guaranteed $30,000 of the 
Columbia River Bank line of credit, for which he received 8,592 post-merger shares.  During fiscal year 
2006,  certain  original  guarantors,  including  John  Hrobsky,  declined  to  continue  guaranteeing  the  loans 
and  forfeited  the  shares  which  had  been  granted  to  them.    Due  to  this  the  following  officers  agreed  to 
increase the amount of their guarantees as follows:  Michael Dunlop guaranteed an additional $5,000 of 
the Columbia River Bank line of credit, for which he received an additional 1,432 common shares; and 
Roger Girard guaranteed an additional $105,000 of the Columbia River Bank line of credit, for which he 
received an additional 30,072 common shares. 

On  May  27,  2005,  the  Company,  Century  Park  Transitory  Subsidiary,  Inc.,  a  Delaware  corporation, 
Thomas  Scallen  and  Anthony  Silverman  (shareholders  of  the  Company),  and  IsoRay  Medical,  Inc.,  a 
Delaware  corporation,  entered  into  a  Merger  Agreement.  Pursuant  to  the  Merger  Agreement,  Century 
Park Transitory Subsidiary, Inc. was merged with and into IsoRay Medical, Inc. and IsoRay Medical, Inc. 
became  a  wholly-owned  subsidiary  of  the  Company.  The  Merger  Agreement  was  subject  to  the 
satisfaction of certain conditions, including the granting of certain "piggy-back" and demand registration 
rights to the purchasers of certain convertible debentures of IsoRay Medical, Inc., Anthony Silverman and 
certain other affiliates of the Company; the agreements of the officers and directors of IsoRay Medical, 
Inc. to lock-up the shares of common stock of the Company they received in the merger for a period of 
one year from the closing of the merger; the agreements of Thomas Scallen and Anthony Silverman  to 
escrow certain shares of  common stock of the Company; and the receipt by IsoRay Medical, Inc. from 
Anthony Silverman or his associates of one million dollars as the purchase price of certain securities of 
IsoRay  Medical,  Inc.  before  the  closing.  These  conditions  were  satisfied  prior  to  the  closing  of  the 
merger, which occurred on July 28, 2005. 

The Board voted on July 28, 2005 to compensate each of the independent Directors $1,000 per meeting 
for their attendance at the Board meetings. On July 28, 2005, the Company’s Board of Directors granted 
100,000  options  to  purchase  common  stock  to  each  of  its  three  independent  Directors:  Thomas  Lavoy, 
Stephen  Boatwright,  and  Robert  Kauffman.    On  March  31,  2006  and  June  30,  2006,  the  Company’s 
Board of Directors granted a total of 100,000 options to purchase common stock to its new independent 
Directors:  Albert  Smith  and  Dwight  Babcock.  Directors  who  are  also  serving  as  management  of  the 
Company were not granted stock options for Director service, and will not be paid for attendance at Board 
meetings. 

During  2005,  IsoRay  Medical,  Inc.  paid  or  accrued  $5,600  for  accounting  services  performed  by  a 
company owned by a member of the Board of Directors of IsoRay Medical, Inc.  

52 

 
 
 
 
 
 
 
Patent and Know-How Royalty License Agreement 

Effective  August  1,  1998,  Pacific  Management  Associates  Corporation  (PMAC)  transferred  its  entire 
right,  title  and  interest  in  an  exclusive  license  agreement  with  Donald  Lawrence  to  IsoRay,  LLC  (a 
predecessor company) in exchange for a membership interest.  The terms of the license agreement require 
the payment of a royalty based on the Net Factory Sales Price, as defined in the agreement, of licensed 
product  sales.    Because  the  licensor’s  patent  application  was  ultimately  abandoned,  only  a  1%  “know-
how” royalty based on Net Factory Sales Price, as defined, remains applicable.  To date, there have been 
no product sales incorporating the licensed technology and there is no royalty due pursuant to the terms of 
the  agreement.    The  Company  believes  that  because  this  technology  is  not  presently  being  used  and 
believes it will not be used in the future that no royalties will be paid under this agreement. 

ITEM 13 - EXHIBITS AND REPORTS ON FORM 8-K 

(except as otherwise indicated, all exhibits were previously filed) 

Exhibit #   

Description

2.1 

2.2 

3.1 

3.2 

3.3 

4.2 

4.3 

4.4 

4.5 

4.6 

4.7 

4.8 

4.9 

4.10 

4.11 

4.12 

Merger  Agreement  dated  as  of  May  27,  2005,  by  and  among  Century  Park  Pictures
Corporation,  Century  Park  Transitory  Subsidiary,  Inc.,  certain  shareholders  and  IsoRay
Medical, Inc. incorporated by reference to the Form 8-K filed on August 3, 2005. 
Certificate  of  Merger,  filed  with  the  Delaware  Secretary  of  State  on  July  28,  2005
incorporated by reference to the Form 8-K filed on August 3, 2005.  
Articles  of  Incorporation  and  By-Laws  are  incorporated  by  reference  to  the  Exhibits  to  the 
Company's Registration Statement of September 15, 1983. 
Certificate  of  Designation  of  Rights,  Preferences  and  Privileges  of  Series  A  and  B
Convertible  Preferred  Stock,  filed  with  the  Minnesota  Secretary  of  State  on  June  29,  2005 
incorporated by reference to the Form 8-K filed on August 3, 2005. 
Restated and Amended Articles of Incorporation incorporated by reference to the Form 10-
KSB filed on October 11, 2005. 
Form of Lock-Up Agreement for Certain IsoRay Medical, Inc. Shareholders incorporated by
reference to the Form 8-K filed on August 3, 2005. 
Form of Lock-Up Agreement for Anthony Silverman incorporated by reference to the Form
8-K filed on August 3, 2005. 
Form of Registration Rights Agreement among IsoRay Medical, Inc., Century Park Pictures
Corporation and the other signatories thereto incorporated by reference to the Form 8-K filed 
on August 3, 2005. 
Form of Escrow Agreement among Century Park Pictures Corporation, IsoRay Medical, Inc. 
and Anthony Silverman incorporated by reference to the Form 8-K filed on August 3, 2005. 
Form of Escrow Agreement among Century Park Pictures Corporation, IsoRay Medical, Inc.
and Thomas Scallen incorporated by reference to the Form 8-K filed on August 3, 2005. 
Amended  and  Restated  2005  Stock  Option  Plan  incorporated  by  reference  to  the  Form  S-8 
filed on August 19, 2005. 
Amended and Restated 2005 Employee Stock Option Plan incorporated by reference to the
Form S-8 filed on August 19, 2005. 
Form of Registration Right Agreement among IsoRay Medical, Inc., Meyers Associates, L.P.
and  the  other  signatories  thereto,  dated  October  15,  2004,  incorporated  by  reference  to  the
Form SB-2 filed on November 10, 2005. 
Form of Registration Rights Agreement among IsoRay, Inc., Meyers Associates, L.P. and the
other signatories thereto, dated February 1, 2006, incorporated by reference to the Form SB-
2/A1 filed on March 24, 2006. 
Form  of  IsoRay,  Inc.  Common  Stock  Purchase  Warrant,  incorporated  by  reference  to  the
Form SB-2/A1 filed on March 24, 2006.   
2006 Director Stock Option Plan, incorporated by reference to the Form S-8 filed on August 
18, 2006.  

53 

 
 
 
  
  
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
 
4.13 

4.14 

10.2 

10.3 

10.4 

10.5 

10.6 

10.7 

10.8 

10.9 

10.10 

10.11 

10.12 
10.13 

10.14 

10.15 

10.16 

10.17 

10.18 

10.19 

10.20 

Form of Registration Rights Agreement among IsoRay, Inc. and the other signatories thereto, 
dated August 9, 2006, incorporated by reference to the Form 8-K filed on August 18, 2006. 
Form of IsoRay, Inc. Common Stock Purchase Warrant, dated August 9, 2006, incorporated
by reference to the Form 8-K filed on August 18, 2006. 
Universal License Agreement, dated November 26, 1997 between Donald C. Lawrence and
William J. Stokes of Pacific Management Associates Corporation, incorporated by reference
to the Form SB-2 filed on November 10, 2005. 
Royalty Agreement of Invention and Patent Application, dated July 12, 1999 between Lane
A. Bray and IsoRay LLC, incorporated by reference to the Form SB-2 filed on November 10, 
2005. 
Tri-City Industrial Development Council Promissory Note, dated July 22, 2002, incorporated 
by reference to the Form SB-2/A2 filed on April 27, 2006. 
Section  510(k)  Clearance  from  the  Food  and  Drug  Administration  to  market  Lawrence
CSERION Model CS-1, dated March 28, 2003, incorporated by reference to the Form SB-2 
filed on November 10, 2005. 
Battelle Project No. 45836 dated June 20, 2003, incorporated by reference to the Form SB-
2/A2 filed on April 27, 2006. 
Applied  Process  Engineering  Laboratory  APEL  Tenant  Lease  Agreement,  dated  April  23, 
2001  between  Energy  Northwest  and  IsoRay,  LLC,  incorporated  by  reference  to  the  Form
SB-2/A2 filed on April 27, 2006. 
Work for Others Agreement No. 45658, R2, dated April 27, 2004 between Battelle Memorial
Institute, Pacific Northwest Division and IsoRay Products LLC, incorporated by reference to
the Form SB-2/A2 filed on April 27, 2006. 
Development  Loan  Agreement  for  $230,000,  dated  September  15,  2004  between  Benton-
Franklin  Economic  Development  District  and  IsoRay  Medical,  Inc.,  incorporated  by 
reference to the Form SB-2/A2 filed on April 27, 2006. 
Registry  of  Radioactive  Sealed  Sources  and  Devices  Safety  Evaluation  of  Sealed  Source,
dated September 17, 2004, incorporated by reference to the Form SB-2/A2 filed on April 27, 
2006. 
CRADA PNNL/245, "Y-90 Process Testing for IsoRay", dated December 22, 2004 between
Pacific Northwest National Laboratory and IsoRay Medical Inc., including Amendment No.
1, incorporated by reference to the Form SB-2/A2 filed on April 27, 2006. 

   Intentionally Omitted 

Amendment  1  to  Agreement  45658,  dated  February  23,  2005  between  Battelle  Memorial
Institute Pacific Northwest Division and IsoRay Medical, Inc., incorporated by reference to
the Form SB-2/A2 filed on April 27, 2006. 
Equipment  Lease  Agreement  dated  April  14,  2005  between  IsoRay  Medical,  Inc.  and
Nationwide Funding, LLC, incorporated by reference to the Form SB-2/A2 filed on April 27, 
2006. 
Lease Agreement, Rev. 2, dated November 1, 2005 between Pacific EcoSolutions, Inc. and 
IsoRay Medical, Inc., incorporated by reference to the Form SB-2/A2 filed on April 27, 2006.
Master Lease Agreement Number 5209, dated May 7, 2005 between VenCore Solutions LLC
and IsoRay Medical, Inc., incorporated by reference to the Form SB-2/A2 filed on April 27, 
2006. 
Contract #840/08624332/04031 dated August 25, 2005 between IsoRay, Inc. and the Federal
State  Unitary  Enterprise  <<  Institute  of  Nuclear  Materials  >>,  Russia,  incorporated  by
reference to the Form SB-2 filed on November 10, 2005. 
State  of  Washington  Radioactive  Materials  License  dated October 6, 2005, incorporated by
reference to the Form SB-2 filed on November 10, 2005. 
Express  Pricing  Agreement  Number  219889,  dated  October  5, 2005  between  FedEx  and 
IsoRay Medical, Inc., incorporated by reference to the Form 10-QSB filed on November 21, 
2005. 
Girard Employment Agreement, dated October 6, 2005 between Roger E. Girard and IsoRay,
Inc., incorporated by reference to the Form 10-QSB filed on November 21, 2005. 

10.21 

   Contract Modification Quality Class G, dated October 25, 2005 to Contract Number X40224

54 

 
 
 
 
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
  
10.22 

10.23 

10.24 

10.25 

10.26 

10.27 

10.28 

10.29 

10.30 

10.31 

10.32 

10.33 

10.34 

16.1 

21.1 

31.1 

31.2 

between Energy Northwest and IsoRay, Inc., incorporated by reference to the Form 10-QSB 
filed on November 21, 2005. 
Agreement  dated  August  9,  2005  between  the  Curators  of  the  University  of  Missouri  and
IsoRay Medical, Inc., incorporated by reference to the Form SB-2/A2 filed on April 27, 2006 
(confidential treatment requested). 
SICAV  ONE  Securities  Purchase Agreement,  dated  December  7,  2005,  by  and  between
IsoRay, Inc. and Mercatus & Partners, Ltd., incorporated by reference to the Form 8-K filed 
on December 12, 2005. 
SICAV  TWO  Securities  Purchase  Agreement,  dated  December  7,  2005,  by  and  between
IsoRay, Inc. and Mercatus & Partners, Ltd., incorporated by reference to the Form 8-K filed 
on December 12, 2005. 
Economic Development Agreement, dated December 14, 2005, by and between IsoRay, Inc.
and the Pocatello Development Authority, incorporated by reference to the Form 8-K filed on 
December 20, 2005. 
License  Agreement,  dated  February  2,  2006,  by  and  between  IsoRay  Medical,  Inc.  and  IBt
SA,  incorporated  by  reference  to  the  Form  8-K  filed  on  March  24,  2006  (confidential 
treatment requested). 
Benton Franklin Economic Development District Loan Covenant Waiver Letter, dated as of
March 31, 2005, incorporated by reference to the Form SB-2/A3 filed on May 12, 2006. 
Service Agreement between IsoRay, Inc. and Advanced Care Medical, Inc., dated March 1, 
2006, incorporated by reference to the Form SB-2/A2 filed on April 27, 2006.  
Business  Loan  Agreement  between  IsoRay  Medical,  Inc.  and  Columbia  River  Bank,  dated
March 1, 2006, incorporated by reference to the Form SB-2/A4 filed on May 26, 2006. 
Letter from HAEIFC to IsoRay Medical, Inc. dated April 26, 2006, incorporated by reference
to the Form SB-2/A5 filed on June 6, 2006. 
Loan Agreement, dated June 15, 2006, by and between IsoRay Medical, Inc. and the Hanford 
Area Economic Investment Fund Committee, incorporated by reference to the Form 8-K filed 
on June 21, 2006. 
Commercial Security Agreement, dated June 15, 2006, by and between IsoRay Medical, Inc.
and  the  Hanford  Area  Economic  Investment  Fund  Committee,  incorporated  by  reference  to 
the Form 8-K filed on June 21, 2006. 
Common  Stock  and  Warrant  Purchase  Agreement  among  IsoRay,  Inc.  and  the  other
signatories thereto, dated August 9, 2006, incorporated by reference to the Form 8-K filed on 
August 18, 2006. 
Benton  Franklin  Economic  Development  District  Loan  Covenant  Waiver  Letter,  dated
September 26, 2006, filed herewith. 
Letter  from  S.W.  Hatfield,  CPA  to  the  SEC  dated  December  13,  2005,  incorporated  by
reference to the Form 8-K filed on December 14, 2005. 
Subsidiaries of the Company, incorporated by reference to the Form 10-KSB filed on October 
11, 2005. 
Certification Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 - Chief Executive 
Officer, filed herewith. 

Certification  Pursuant  to  Section  302  of  the  Sarbanes-Oxley  Act  of  2002  -  Chief  Financial 
Officer, filed herewith. 

32.1 

   Certifications Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, filed herewith.  

Reports on Form 8-K 

On  April  6,  2006,  the  Company  filed  a  Current  Report  on  Form  8-K  announcing  the  expansion  of  the 
Board of Directors to seven members and appointing Albert Smith and Dwight Babcock as directors. 

On May 2, 2006, the Company filed a Current Report on Form 8-K/A amending its March 26, 2006 Form 
8-K filing. 

55 

 
 
  
  
  
  
  
  
  
 
 
 
 
 
 
  
  
  
 
  
  
  
 
  
  
 
 
 
On  May  9,  2006,  the  Company  filed  a  Current  Report  on  Form  8-K  providing  notice  that  certain 
previously filed consolidated financial statements were to be restated. 

On  June  21,  2006,  the  Company  filed  a  Current  Report  on  Form  8-K  announcing  its  entry  into  a  loan 
agreement with the Hanford Area Economic Investment Fund Committee (“HAEIFC”) for a $1.4 million 
loan facility. 

On  August  10,  2006,  the  Company  filed  a  Current  Report  on  Form  8-K  announcing  the  return  of  the 
Mercatus shares and their cancellation. 

On  August  18,  2006,  the  Company  filed  a  Current  Report  on  Form  8-K  announcing  the  sale  of 
unregistered common stock and warrants pursuant to a Common Stock and Warrant Purchase Agreement. 

On September 8, 2006, the Company filed a Current Report on Form 8-K announcing a press release of 
the Company’s preliminary financial results for the year ended June 30, 2006 and anticipated first quarter 
of fiscal year 2007. 

On September 11, 2006, the Company filed a Current Report on Form 8-K announcing the resignation of 
the  Company’s  Chief  Financial  Officer,  the  appointment  of  a  new  Chief  Financial  Officer,  and  the 
transcript from the Company’s presentation at the Roth Capital Conference. 

ITEM 14 - PRINCIPAL ACCOUNTANT FEES AND SERVICES

The  Company  paid  or  accrued  the  following  fees  in  each  of  the  prior  two  fiscal  years  to  its  principal 
accountant,  DeCoria,  Maichel  &  Teague,  P.S.,  and to  its  previous  principal  accountant,  S. W.  Hatfield, 
CPA of Dallas, Texas:  

1.  Audit fees(1)
2.  Audit-related fees 
3.  Tax fees 
4.  All other fees 
Totals 

Year ended 
June 30, 
2006 

Nine months 
ended June 
30, 2005 

Year ended 
September 
30, 2004 

   $

   $

72,292   $
1,150  
2,750  
-  

76,192   $

4,663   $

-  
-  
-  

4,663   $

5,512 
- 
- 
- 
5,512 

(1) 

Fees  for  the  year  ended  June  30,  2006  were  as  follows:  $49,125  paid  to  DeCoria,  Maichel  & 
Teague, P.S. and $23,167 paid to S. W. Hatfield, CPA. 

As  part  of  its  responsibility  for  oversight  of  the  independent  registered  public  accountants,  the  Audit 
Committee  has  established  a  pre-approval  policy  for  engaging  audit  and  permitted  non-audit  services 
provided  by  our  independent  registered  public  accountants,  DeCoria,  Maichel  &  Teague,  P.S.    In 
accordance  with  this  policy,  each  type  of  audit,  audit-related,  tax  and  other  permitted  service  to  be 
provided by the independent auditors is specifically described and each such service, together with a fee 
level  or  budgeted  amount  for  such  service,  is  pre-approved  by  the  Audit  Committee.    The  Audit 
Committee  has  delegated  pre-approval  authority  to  its  Chairman  to  pre-approve  additional  non-audit 
services (provided such services are not prohibited by applicable law) up to a pre-established aggregate 
dollar limit.  All services pre-approved by the Chairman of the Audit Committee must be presented at the 
next Audit Committee meeting for their review and ratification.  All of the services provided by DeCoria, 
Maichel & Teague, P.S. described above were approved by our Audit Committee. 

The Company’s principal accountant, DeCoria, Maichel & Teague P.S. did not engage any other persons 
or firms other than the principal accountant’s full-time, permanent employees. 

56 

 
 
 
 
 
 
 
  
  
  
 
  
  
  
  
 
  
     
     
     
 
  
 
  
 
  
 
  
 
 
IsoRay, Inc.
Index to Financial Statements

Page 

Report of Independent Registered Public Accounting Firm   ...................................................... F-2 

Financial Statements: 

Consolidated Balance Sheets as of June 30, 2006 and 2005   ..................................... F-3 
Consolidated Statements of Operations for the years ended  

June 30, 2006 and 2005......................................................................................... F-4 

Consolidated Statements of Shareholders’ Equity (Deficit) for the years 

ended June 30, 2006 and 2005   ............................................................................ F-5 

Consolidated Statements of Cash Flows for the years ended June 30, 

2006 and 2005  ..................................................................................................... F-6 
Notes to Consolidated Financial Statements   ............................................................. F-7 

F-1 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
Report of Independent Registered Public Accounting Firm

Board of Directors and Shareholders 
IsoRay, Inc. 
Richland, Washington 

We  have  audited  the  accompanying  consolidated  balance  sheets  of  IsoRay,  Inc.  and  Subsidiary  (“the 
Company”)  (see  Note  1)  as  of  June  30,  2006  and  2005,  and  the  related  consolidated  statements  of 
operations,  changes  in  shareholders’  equity  (deficit)  and  cash  flows  for  the  years  then  ended.  These 
financial statements are the responsibility of the Company’s management. Our responsibility is to express 
an opinion on these financial statements based on our audits. 

We conducted our audits in accordance with the standards of the Public Company Accounting Oversight 
Board (United States). Those standards require that we plan and perform the audit to obtain reasonable 
assurance  about  whether  the  financial  statements  are  free  of  material  misstatement.  An  audit  includes 
examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. 
An  audit  also  includes  assessing  the  accounting  principles  used  and  significant  estimates  made  by 
management, as well as evaluating the overall financial statement presentation. We believe that our audits 
provide a reasonable basis for our opinion. 

In  our  opinion  the  financial  statements  referred  to  above  present  fairly,  in  all  material  respects,  the 
consolidated  financial  position  of  IsoRay,  Inc.  and  Subsidiary  as  of  June  30,  2006  and  2005,  and  the 
consolidated results of their operations and their cash flows for the years then ended, in conformity with 
accounting principles generally accepted in the United States of America. 

The accompanying financial statements have been prepared assuming that the Company will continue as a 
going  concern.    As  discussed  in  Note  3  to  the  financial  statements,  certain  conditions  raise  substantial 
doubt about the Company’s ability to continue as a going concern.  Management's plans in regard to these 
matters  are  also  described  in  Note  3.    The  accompanying  financial  statements  do  not  include  any 
adjustments that might result from the outcome of this uncertainty. 

/s/ DeCoria, Maichel & Teague, P.S. 

Spokane, Washington 
September 26, 2006 

F-2 

 
 
 
 
 
 
 
 
 
 
 
 
IsoRay, Inc. and Subsidiary
Consolidated Balance Sheets

ASSETS

Current assets:

Cash and cash equivalents
Accounts receivable, net of allowance for doubtful accounts

of $85,183 and $17,075, respectively

Inventory
Prepaid expenses

Total current assets

Fixed assets, net of accumulated depreciation
Deferred financing costs, net of accumulated amortization
Licenses, net of accumulated amortization
Other assets, net of accumulated amortization

June 30,

2006

2005

$    

2,207,452

$      

1,653,144

596,447
161,381
161,546

49,969
81,926
181,266

3,126,826

1,966,305

1,642,293
274,358
273,475
338,987

842,323
548,837
18,656
226,263

Total assets

$    

5,655,939

$      

3,602,384

LIABILITIES AND SHAREHOLDERS' EQUITY (DEFICIT)

Current liabilities:

Accounts payable and accrued expenses
Accrued payroll and related taxes
Accrued interest payable
Notes payable, due within one year
Capital lease obligations, due within one year
Convertible debentures payable, due within one year

Total current liabilities

Notes payable, due after one year
Capital lease obligations, due after one year
Convertible debentures payable, due after one year
Asset retirement obligation

Total liabilities

Shareholders' equity (deficit):

Preferred stock, $.001 par value; 6,000,000 shares authorized:

Series A: 1,000,000 shares allocated; no shares issued and outstanding
Series B: 5,000,000 shares allocated; 144,759 and 1,338,167 shares issued and

outstanding

Common stock, $.001 par value; 194,000,000 and 100,000,000 shares authorized;

15,157,901 and 6,163,623 shares issued and outstanding

Subscriptions receivable
Additional paid-in capital
Accumulated deficit

$       

584,296
614,645
11,986
51,351
183,554
455,000

$         

695,588
157,924
41,325
43,116
9,604
-

1,900,832

947,557

581,557
220,415
-
67,425

562,224
19,584
3,587,875

-

2,770,229

5,117,240

-

145

15,158
(6,122,007)
22,538,675
(13,546,261)

-

1,338

6,164
-

3,805,773
(5,328,131)

Total shareholders' equity (deficit)

2,885,710

(1,514,856)

Total liabilities and shareholders' equity (deficit)

$    

5,655,939

$      

3,602,384

The accompanying notes are an integral part of these financial statements.

         
             
         
             
         
           
      
        
      
           
         
           
         
             
         
           
         
           
           
             
           
             
         
                
         
                   
      
           
         
           
         
             
                 
        
           
                   
      
        
                 
                   
                 
                
           
                
     
                   
    
        
   
       
      
       
IsoRay, Inc. and Subsidiary
Consolidated Statements of Operations

Product sales
Cost of product sales

Gross loss

Operating expenses:

Research and development
Sales and marketing expenses
General and administrative expenses

Year ended June 30,
2006
2005

$   

1,994,306
3,815,122

$      

201,731
1,474,251

(1,820,816)

(1,272,520)

450,425
1,420,500
3,503,522

137,532
701,822
1,871,325

Total operating expenses

5,374,447

2,710,679

Operating loss

(7,195,263)

(3,983,199)

Non-operating income (expense):

Interest income
Financing expense
Loss on disposal of fixed assets
Debt conversion expense (Note 11)

51,744
(689,100)
-
(385,511)

2,394
(167,493)
(120,890)
-

Non-operating income (expense), net

(1,022,867)

(285,989)

Net loss

$ 

(8,218,130)

$ 

(4,269,188)

Basic loss per share

$          

(0.68)

$          

(0.78)

Shares used in computing net loss per share:

Basic

12,051,964

5,470,046

The accompanying notes are an integral part of these financial statements.

     
     
   
   
        
        
     
        
     
     
     
     
   
   
          
            
      
      
               
      
      
               
   
      
   
     
IsoRay, Inc. and Subsidiary
Consolidated Statement of Changes in Shareholders' Equity (Deficit) 

Balances at June 30, 2004 

-

$           
-

-

$           
-

2,767,700

$                  

2,768

-

$           
-

8,424

$              
8

$                    
-

$             

1,369,910

$      

(1,058,943)

$      

313,743

Series B Preferred Stock

Common Stock 

IsoRay, Inc. (WA) Common Stock  (2)

Series B Preferred Stock

Common Stock 

IsoRay, Inc. (MN) (1)

IsoRay Medical, Inc. 

Shares  

Amount 

Shares  

Amount 

Shares  

Amount 

 Shares 

Amount 

Shares 

Amount 

 Subscriptions 
Receivable 

 Additional Paid-in 
Capital 

 Accumulated 
Deficit 

Total 

Issuance of IsoRay, Inc. (WA) common shares pursuant to exercise of options
Issuance of IsoRay, Inc. (WA) common shares as compensation
Issuance of IsoRay Products LLC member shares for cash, net of offering costs
Merger of IsoRay, Inc (WA) and IsoRay Products LLC into IsoRay Medical, Inc.
Reversal of dividends accrued by IsoRay Products LLC
Issuance of IsoRay Medical, Inc. common shares for cash pursuant to private

placement, net of offering costs

Issuance of IsoRay Medical, Inc. common shares pursuant to exercise of warrants

granted in connection with private placement

Issuance of IsoRay Medical, Inc. common shares as inducement for guarantee of debt
Issuance of IsoRay Medical, Inc. common shares as partial payment for laser

welding stations

Issuance of Series B preferred shares pursuant to exercise of warrants
Exchange of Series B preferred shares for IsoRay Medical, Inc. common shares
Payments to common shareholders in lieu of issuing fractional shares
Net loss

71,580
57,025

71
57

(2,896,305)

(2,896)

1,249,832

1,249

5,195,205

5,196

644,828

109,296
177,856

25,526

2,488

645

109
178

26

2

90,823
(2,488)

91
(2)

71,509
56,968
303,743
(3,549)
91,765

1,355,933

64,766
348,203

49,974
96,651
-
(100)

71,580
57,025
303,743

-
91,765

1,356,578

64,875
348,381

50,000
96,742
-
(100)
(4,269,188)

(4,269,188)

Balances at June 30, 2005 

-

-

-

-

-

-

1,338,167

1,338

6,163,623

6,164

-

3,805,773

(5,328,131)

(1,514,856)

Merger of IsoRay, Inc. (formerly Century Park Pictures Corporation) and
IsoRay Medical, Inc., net of fractional shares paid in cash (see Note 1)
Common stock held by shareholders of Century Park Picture Corporation

after the reverse acquisition

Issuance of common shares as payment for merger consulting services
Payments to shareholders in lieu of issuing fractional shares
Issuance of preferred stock pursuant to exercise of warrants
Issuance of preferred stock pursuant to exercise of warrants paid by surrending

a partial note payable

Issuance of common stock pursuant to exercise of warrants
Issuance of common stock pursuant to exercise of options
Conversion of preferred stock to common stock
Exchange of convertible debentures payable to common stock
Issuance of warrants pursuant to short-term inducement to convert debentures
Issuance of warrants as inducement for note payable from shareholder (see Note 9)
Issuance of common stock pursuant to the October 2005 private

placement, net of offering costs

Issuance of common stock pursuant to the February 2006 private

placement, net of offering costs

Issuance of common stock to Mercatus subject to a subscription

receivable agreement

Issuance of common stock for payment of invoices
Issuance of common stock pursuant to the June 2006 warrant

exercise solicitation, net of offering costs

Net loss

Balances at June 30, 2006

1,338,132

1,338

6,163,518

8,708

44,788

8

45

(1,246,869)

(1,246)

2,498,534
168,472

84,147
101,284
1,246,869
911,271

6,164

2,499
169

84
101
1,246
911

1,500,000

1,500

268,889

1,748,146
39,007

427,764

269

1,748
39

428

(1,338,167)

(1,338)

(6,163,623)

(6,164)

8,733
329,831
(734)
6,977

48,268
49,866
119,476

3,681,964
385,511
60,000

5,406,626

1,107,955

6,120,259
184,996

1,223,174

-

11,232
330,000
(734)
6,985

48,313
49,950
119,577

-

3,682,875
385,511
60,000

5,408,126

1,108,224

-

185,035

(8,218,130)

1,223,602
(8,218,130)

(6,122,007)

144,759

$          

145

15,157,901

$     

15,158

-

$                      
-

-

$           
-

-

$           
-

$       

(6,122,007)

$           

22,538,675

$    

(13,546,261)

$   

2,885,710

1. IsoRay, Inc (MN) is the current registrant (formerly Century Park Pictures Corporation) and a Minnesota corporation.
2. IsoRay, Inc. (WA) is a former Washington corporation which was merged into IsoRay Medical, Inc. in fiscal year 2005.

The accompanying notes are an integral part of these financial statements.

                
                
            
                
            
                  
                         
                     
          
                  
                         
                     
          
                   
        
           
                   
     
         
     
         
                      
                
                     
          
        
            
               
     
        
            
                     
          
        
            
                   
        
          
              
                     
          
          
              
                     
          
           
               
            
                
                           
                
                         
              
    
    
    
    
    
    
    
    
        
    
                
             
                
             
                        
                        
     
         
     
         
                      
               
        
    
     
         
     
         
    
        
    
        
                
     
         
                       
          
        
            
                   
        
                         
              
            
                
                       
            
          
              
                     
          
          
              
                     
          
        
            
                   
        
    
        
     
         
                
        
            
               
     
                   
        
                     
          
     
         
               
     
        
            
               
     
     
         
         
               
                
          
              
                   
        
        
            
               
     
        
    
        
   
                        
                
                
IsoRay, Inc. and Subsidiary
Consolidated Statements of Cash Flows

CASH FLOWS FROM OPERATING ACTIVITIES:
Net loss
Adjustments to reconcile net loss to net cash used by operating activities:

Depreciation and amortization of fixed assets
Amortization of deferred financing costs and other assets
Accretion of asset retirement obligation
Loss on disposal of fixed assets
Merger consulting fees paid by issuance of common stock
Consulting and repair fees paid by issuance of common stock
Rent expense paid by issuance of common stock
Debt conversion expense (Note 11)
Changes in operating assets and liabilities:

Accounts receivable, net
Inventory
Prepaid expenses
Accounts payable and accrued expenses
Accrued payroll and related taxes
Accrued interest payable

Year ended June 30,
2006
2005

$ 

(8,218,130)

$ 

(4,269,188)

271,060
384,266
4,385
-
330,000
39,750
90,026
385,511

(546,478)
(79,455)
41,252
(132,646)
456,721
(29,339)

140,099
82,358
-
120,890
-
57,025
-
-

(49,969)
(62,200)
(104,133)
566,567
99,914
33,090

Net cash used by operating activities

(7,003,077)

(3,385,547)

CASH FLOWS FROM INVESTING ACTIVITIES:
Purchases of fixed assets
Additions to licenses and other assets
Cash acquired in reverse acquisition (Note 1)

Net cash used by investing activities

CASH FLOWS FROM FINANCING ACTIVITIES:
Proceeds from issuance of notes payable, net of financing costs
Proceeds from sales of convertible debentures payable
Principal payments on notes payable
Principal payments on capital lease obligations
Proceeds from cash sales of common shares pursuant to private placement, net of offering costs
Proceeds from cash sales of preferred stock, pursuant to exercise of warrants
Proceeds from cash sales of common stock, pursuant to exercise of warrants
Proceeds from cash sales of common stock, pursuant to exercise of options
Proceeds from cash sales of common stock, pursuant to June 2006 warrant exercises
Payments to common shareholders in lieu of issuing fractional shares

Net cash provided by financing activities

Net increase in cash and cash equivalents
Cash and cash equivalents, beginning of period

(474,795)
(395,201)
32,587

(724,029)
(431,438)
-

(837,409)

(1,155,467)

646,542
550,000
(592,790)
(124,688)
6,516,350
6,985
49,950
119,577
1,223,602
(734)

315,000
3,587,875
(23,653)
(2,914)
1,847,511

-
-
-
-
(100)

8,394,794

5,723,719

554,308
1,653,144

1,182,705
470,439

CASH AND CASH EQUIVALENTS, END OF PERIOD

$   

2,207,452

$   

1,653,144

Supplemental disclosures of cash flow information:

Cash paid for interest

Non-cash investing and financing activities:

Exchange of convertible debentures payable for shares of common stock
Fixed assets acquired by capital lease obligations
Increase in PP&E related to asset retirement obligation
Issuance of common shares as partial payment for production equipment
Issuance of common shares as partial payment of notes payable
Liabilities acquired in acquisition
Prepaid rent paid by issuance of common stock
Issuance of warrants as an inducement for a note payable
Issuance of preferred shares for debt reduction
Issuance of common shares as compensation for guarantee of debt
Reversal of dividends payable to IsoRay Products LLC members

$      

361,832

$       

57,657

$   

3,682,875
507,947
63,040
25,248
48,313
21,355
120,036
60,000
-
-
-

$              
-
32,102

50,000
-
-
-
-
46,007
348,381
(91,765)

The accompanying notes are an integral part of these financial statements.

       
       
       
         
           
                
                
       
       
                
         
         
         
                
       
                
      
        
        
        
         
      
      
       
       
         
        
         
   
   
      
      
      
      
         
                
      
   
       
       
       
     
      
        
      
          
     
     
           
                
         
                
       
                
     
                
              
              
     
     
       
     
     
       
       
         
         
         
         
         
                
         
                
       
                
         
                
                
         
                
       
                
        
IsoRay, Inc.
Notes to Consolidated Financial Statements 
For the years ended June 30, 2006 and 2005

1.  Organization 

Historical Organization 

Century Park Pictures Corporation (“Century”) was organized under Minnesota law in 1983.  Century is a 
public company subject to the periodic reporting requirements of the Securities Exchange Act of 1934. 

Century had no operations since its fiscal year ended September 30, 1999 through June 30, 2005. 

Merger Transaction 

On  May  27,  2005,  IsoRay  Medical,  Inc.  (“Medical”)  entered  into  a  merger  agreement  with  Century  to 
merge with Century’s newly-formed, wholly-owned subsidiary.  

On July 28, 2005, the merger transaction closed.  As a result of the merger, Medical became a wholly-
owned  subsidiary  of  Century,  which  concurrently  changed  its  name  to  IsoRay,  Inc.  (“IsoRay”  or  “the 
Company”). 

IsoRay issued shares of its common and preferred stock to the holders of common and preferred stock of 
Medical  at  a  rate  of  0.842362  share  of  IsoRay’s  stock  for  each  share  of  Medical’s  stock.    Options  and 
warrants to purchase common and preferred stock of Medical were also converted at the same rate into 
options and warrants to purchase common and preferred stock of IsoRay, Inc.  On a fully-diluted basis, 
Medical’s shareholders owned approximately 82% of IsoRay’s outstanding securities. 

Management  believes  the  transaction  was  structured  to  qualify  as  a  non-taxable  reorganization  under 
Section 368(a)(1)(A) of the Internal Revenue Code of 1986, as amended. 

Financial Presentation 

Medical, a Delaware corporation, was incorporated effective June 15, 2004 to develop, manufacture and 
sell isotope-based medical products and devices for the treatment of cancer and other diseases.  Medical is 
headquartered in Richland, Washington. 

Medical was formed for the purpose of combining the operations of IsoRay, Inc. (a former Washington 
corporation)  (“IsoRay  (WA)”)  and  its  subsidiary,  IsoRay  Products  LLC,  two  companies  that  shared 
common  ownership  and  management  with  Medical.    Medical’s  management  initiated  a  merger 
transaction effective October 1, 2004, in order to accomplish the combining of operations. 

Statement  of  Financial  Accounting  Standards  (SFAS)  No.  141,  Business  Combinations,  requires  that 
following  a  merger  the  accounting  acquirer’s  financial  statements  should  be  used  for  historical 
comparisons.  Although the legal acquirer was Century, for accounting purposes Medical was the acquirer 
and  as  such  Medical’s  historical  financial  statements  are  shown  for  comparative  purposes.    Also  for 
accounting purposes, the merger was accounted for as though it happened on July 1, 2005. 

As part of the reverse merger, Medical acquired cash of $32,587 and accounts payable of $21,355. 

F-7 

 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
2. 

Summary of Significant Accounting Policies 

Consolidation 

The accompanying consolidated financial statements include the accounts of the Company and its wholly-
owned subsidiary (collectively the “Company”). All significant intercompany accounts and transactions 
have been eliminated. 

Basis of Presentation 

During  the  fourth  quarter  of  fiscal  year  2005,  Medical’s  management  determined  that  Medical  had 
emerged  from  the  development  stage,  inasmuch  as  its  planned  principal  operations  had  commenced.  
Prior to that time, Medical’s activities had consisted primarily of conducting research and development 
and soliciting equity and debt financing.  Accordingly, the Company’s financial statements are no longer 
presented  as  those  of  a  development  stage  enterprise  as  they  were  in  prior  periods,  as  prescribed  by 
Statement of Financial Accounting Standards (SFAS) No. 7, Accounting and Reporting by Development 
Stage Enterprises. 

Cash Equivalents 

The  Company  considers  all  highly  liquid  investments  with  maturities  of  three  months  or  less  when 
purchased to be cash equivalents. 

Accounts Receivable 

Accounts receivable are stated at the amount that  management of the Company expects to collect from 
outstanding balances. Management provides for probable uncollectible amounts through an allowance for 
doubtful  accounts.  Additions  to  the  allowance  for  doubtful  accounts  are  based  on  management’s 
judgment,  considering  historical  write-offs,  collections  and  current  credit  conditions.  Balances  which 
remain  outstanding  after  management  has  used  reasonable  collection  efforts  are  written  off  through  a 
charge to the allowance for doubtful accounts and a credit to the applicable accounts receivable. Payments 
received subsequent to the time that an account is written off are considered bad debt recoveries. 

Inventory 

Inventory  is  reported  at  the  lower  of  cost,  determined  using  the  weighted  average  method,  or  net 
realizable value. 

Fixed Assets 

Fixed assets are carried at the lower of cost or net realizable value. Production equipment with a cost of 
$2,500  or  greater,  and  other  fixed  assets  with  a  cost  of  $1,000  or  greater  are  capitalized.  Major 
betterments that extend the useful lives of assets are also capitalized. Normal maintenance and repairs are 
charged to expense as incurred. When assets are sold or otherwise disposed of, the cost and accumulated 
depreciation are removed from the accounts and any resulting gain or loss is recognized in operations.  

Depreciation is computed using the straight-line method over the following estimated useful lives: 

Production equipment 
Office equipment 
Furniture and fixtures 

7 years 
5 years 
5 years 

Leasehold improvements and capital lease assets are amortized over the shorter of the life of the lease or 
the estimated life of the asset. 

F-8 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The Company has adopted the provisions of SFAS No. 144, Accounting for the Impairment or Disposal 
of  Long-Lived  Assets.  The  provisions  of  SFAS  No.  144  require  that  an  impairment  loss  be  recognized 
when the estimated future cash flows (undiscounted and without interest) expected to result from the use 
of an asset are less than the carrying amount of the asset. Measurement of an impairment loss is based on 
the estimated fair value of the asset if the asset is expected to be held and used. 

Management  of  the  Company  periodically  reviews  the  net  carrying  value  of  all  of  its  equipment  on  an 
asset  by  asset  basis.  These  reviews  consider  the  net  realizable  value  of  each  asset,  as  measured  in 
accordance with the preceding paragraph, to determine whether an impairment in value has occurred, and 
the need for any asset impairment write-down.  

Although  management  has  made  its  best  estimate  of  the  factors  that  affect  the  carrying  value  based  on 
current  conditions,  it  is  reasonably  possible  that  changes  could  occur  which  could  adversely  affect 
management's estimate of net cash flows expected to be generated from its assets, and necessitate asset 
impairment write-downs. 

Deferred Financing Costs 

Financing costs related to the acquisition of debt are deferred and amortized over the term of the related 
debt using the effective interest method.  Deferred financing costs include the fair value of shares issued 
to certain shareholders for their guarantee of certain Company debt (see Notes 8 and 9).  Amortization of 
deferred  financing  costs,  totaling  $296,608  and  $76,746  for  the  years  ended  June  30,  2006  and  2005, 
respectively, is included in financing expense on the statements of operations. 

Licenses 

Amortization of licenses is computed using the straight-line method over the estimated economic useful 
lives of the assets.  In fiscal year 2006, the Company entered into an agreement with IBt, SA, a Belgian 
company (“IBt”) to use IBt’s proprietary “Ink Jet” production process and paid to IBt $275,000.  The IBt 
license is being amortized over the 15 year term of the license.  Amortization of licenses was $20,530 and 
$2,674 for the years ended June 30, 2006 and 2005, respectively. 

The Company periodically reviews the carrying values of licenses in accordance with SFAS No. 144 and 
any impairments are recognized when the expected future operating cash flows to be derived from such 
assets are less than their carrying value. 

Based  on  the  licenses  recorded  at  June  30,  2006,  and  assuming  no  subsequent  impairment  of  the 
underlying assets, the annual amortization expense for each fiscal year ending June 30th, is expected to be 
as  follows:  $20,224  for  2007,  $20,224  for  2008,  $20,224  for  2009,  $18,600  for  2010,  and  $18,333  for 
2011. 

Other Assets 

Other  assets,  which  include  deferred  charges  and  patents,  are  stated  at  cost,  less  accumulated 
amortization.  Amortization  of  patents  is  computed  using  the  straight-line  method  over  the  estimated 
economic useful lives of the assets. The Company periodically reviews the carrying values of patents in 
accordance with SFAS No. 144 and any impairments are recognized when the expected future operating 
cash flows to be derived from such assets are less than their carrying value. 

Based on the patents and other intangible assets recorded in other assets at June 30, 2006, and assuming 
no subsequent impairment of the underlying assets, the annual amortization expense for each fiscal year 
ending  June  30th,  is  expected  to  be  as  follows:  $10,790  for  2007,  $4,826  for  2008,  $1,843  for  2009, 
$1,843 for 2010, and $1,843 for 2011. 

F-9 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Asset Retirement Obligation 

SFAS No. 143, Asset Retirement Obligations, establishes standards for the recognition, measurement and 
disclosure  of  legal  obligations  associated  with  the  costs  to  retire  long-lived  assets.    Accordingly,  under 
SFAS No. 143, the fair value of the future retirement costs of the Company’s leased assets are recorded as 
a liability on a discounted basis when it is incurred and an equivalent amount is capitalized to property 
and equipment.  The initial recorded obligation, which has been discounted using the Company’s credit-
adjusted  risk  free-rate,  will  be  reviewed  periodically  to  reflect  the  passage  of  time  and  changes  in  the 
estimated future costs underlying the obligation.  The Company amortizes the initial amount capitalized 
to property and equipment and recognizes accretion expense in connection with the discounted liability 
over the estimated remaining useful life of the leased assets. 

During the years ended June 30, 2006 and 2005, the asset retirement obligation changed as follows: 

Beginning balance 
New obligations 
Accretion of discount 

Ending balance 

Financial Instruments 

2006 

- 
63,040 
4,385 

67,425 

$ 

$ 

The Company discloses the fair value of financial instruments, both assets and liabilities, recognized and 
not recognized in the balance sheet, for which it is practicable to estimate the fair value. The fair value of 
a financial instrument is the amount at which the instrument could be exchanged in a current transaction 
between willing parties, other than a forced liquidation sale. 

The carrying amounts of financial instruments, including cash and cash equivalents; accounts receivable; 
accounts  payable;  notes  payable;  capital  lease  obligations;  and  convertible  debentures  payable, 
approximated their fair values at June 30, 2006 and 2005. 

Revenue Recognition 

The  Company  applies  the  provisions  of  SEC  Staff  Accounting  Bulletin  (“SAB”)  No. 104,  Revenue 
Recognition.  SAB  No. 104,  which  supersedes  SAB  No. 101,  Revenue  Recognition  in  Financial 
Statements,  provides  guidance  on  the  recognition,  presentation  and  disclosure  of  revenue  in  financial 
statements. SAB No. 104 outlines the basic criteria that must be met to recognize revenue and provides 
guidance for the disclosure of revenue recognition policies. The Company recognizes revenue related to 
product sales when (i) persuasive evidence of an arrangement exists, (ii) shipment has occurred, (iii) the 
fee is fixed or determinable, and (iv) collectibility is reasonably assured. 

Revenue  for  the  fiscal  years  ended  June  30,  2006  and  2005  was  derived  solely  from  sales  of  the  131Cs 
brachytherapy seed, which is used in the treatment of cancer. The Company recognizes revenue once an 
order has been received and shipped to the customer. Prepayments, if any, received from customers prior 
to the time that products are shipped are recorded as deferred revenue. In these cases, when the related 
products are shipped, the amount recorded as deferred revenue is recognized as revenue. The Company 
accrues for sales returns and other allowances at the time of shipment. 

Stock-Based Compensation 

SFAS  No.  123,  Accounting  for  Stock-Based  Compensation,  as  amended  by  SFAS  No.  148,  requires 
companies to recognize stock-based expense based on the estimated fair value of employee stock options. 
Alternatively,  SFAS  No.  123  allows  companies  to  retain  the  current  approach  set  forth  in  Accounting 
Principles  Board  Opinion  No.  25,  Accounting  for  Stock  Issued  to  Employees  (APB  25),  provided  that 
F-10 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
expanded  footnote  disclosure  is  presented.  The  Company  has  not  adopted  the  fair  value  method  of 
accounting  for  stock-based  compensation  under  SFAS  No.  123,  but  provides  the  pro  forma  disclosure 
required when appropriate (see Note 12). 

Research and Development Costs 

Research  and  development  costs,  including  salaries,  research  materials,  administrative  expenses  and 
contractor  fees,  are  charged  to  operations  as  incurred.  The  cost  of  equipment  used  in  research  and 
development activities which has alternative uses is capitalized as part of fixed assets and not treated as 
an  expense  in  the  period  acquired.  Depreciation  of  capitalized  equipment  used  to  perform  research  and 
development is classified as research and development expense in the year computed. 

Advertising and Marketing Costs 

Advertising  and  marketing  costs  are  expensed  as  incurred  except  for  the  cost  of  tradeshows  which  are 
deferred until the tradeshow occurs. 

Shipping and Handling Costs 

Shipping and handling costs are expensed as incurred and included in cost of product sales. 

Legal Contingencies 

In the ordinary course of business, the  Company is  involved in legal proceedings involving contractual 
and employment relationships, product liability claims, patent rights, and a variety of other matters. The 
Company records contingent liabilities resulting from asserted and unasserted claims against it, when it is 
probable  that  a  liability  has  been  incurred  and  the  amount  of  the  loss  is  reasonably  estimable.  The 
Company discloses contingent liabilities when there is a reasonable possibility that the ultimate loss will 
exceed  the  recorded  liability.  Estimating  probable  losses  requires  analysis  of  multiple  factors,  in  some 
cases  including  judgments  about  the  potential  actions  of  third-party  claimants  and  courts.  Therefore, 
actual losses in any future period are inherently uncertain. Currently, the Company does not believe any 
probable  legal  proceedings  or  claims  will  have  a  material  impact  on  its  financial  position  or  results  of 
operations.  However,  if  actual  or  estimated  probable  future  losses  exceed  the  Company’s  recorded 
liability for such claims, it would record additional charges as other expense during the period in which 
the actual loss or change in estimate occurred. 

Income Taxes 

Income  taxes  are  accounted  for  under  the  liability  method.  Under  this  method,  the  Company  provides 
deferred income taxes for temporary differences that will result in taxable or deductible amounts in future 
years based on the reporting of certain costs in different periods for financial statement and income tax 
purposes.  This  method  also  requires  the  recognition  of  future  tax  benefits  such  as  net  operating  loss 
carryforwards, to the extent that realization of such benefits is more likely than not. Deferred tax assets 
and liabilities are  measured using enacted tax rates expected to apply to taxable income in the years in 
which  those  temporary  differences  are  expected  to  be  recovered  or  settled.  The  effect  on  deferred  tax 
assets  and  liabilities  of  a  change  in  tax  rates  is  recognized  in  operations  in  the  period  that  includes  the 
enactment of the change. 

Income (Loss) Per Common Share 

The  Company  accounts  for  its  income  (loss)  per  common  share  according  to  SFAS  No.  128,  Earnings 
Per  Share.  Under  the  provisions  of  SFAS  No.  128,  primary  and  fully  diluted  earnings  per  share  are 
replaced with basic and diluted earnings per share. Basic earnings per share is calculated by dividing net 
income  (loss)  available  to  common  shareholders  by  the  weighted  average  number  of  common  shares 
outstanding,  and  does  not  include  the  impact  of  any  potentially  dilutive  common  stock  equivalents. 
F-11 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
Common stock equivalents, including warrants to purchase the Company's common stock and common 
stock issuable upon the conversion of notes payable, are excluded from the calculations when their effect 
is antidilutive.  Basic weighted average shares outstanding for the year ended June 30, 2005 have been 
adjusted to reflect the exchange ratio contained in the merger transaction dated July 28, 2005 (see Note 
1).    At  June  30,  2006  and  2005,  the  calculation  of  diluted  weighted  average  shares  does  not  include 
preferred stock, options, or warrants that are potentially convertible into common stock as those would be 
antidilutive due to the Company’s net loss position. 

Securities that could be dilutive in the future as of June 30, 2006 and 2005 are as follows: 

Preferred stock 
Preferred stock warrants 
Common stock warrants 
Common stock options 
Convertible debentures 

2006   
144,759 
179,512 
2,502,769 
3,129,692 
109,639 

2005   
1,338,167 
233,008 
136,158 
2,237,802 
864,548 

Total potential dilutive securities 

6,066,371 

4,809,683 

Use of Estimates 

The preparation of financial statements in accordance with accounting principles generally accepted in the 
United States of America requires management of the Company to make estimates and assumptions that 
affect  the  amounts  reported  in  the  financial  statements  and  accompanying  notes.  Accordingly,  actual 
results could differ from those estimates and affect the amounts reported in the financial statements.  

Reclassification Entries 

Certain reclassifications, primarily the separate disclosure of deferred financing costs and licenses, have 
been  made  to  the  2005  financial  statements  to  conform  to  the  presentation  in  the  2006  financial 
statements.  

3. 

Risks and Uncertainties 

The Company’s financial statements have been prepared on a going concern basis, which contemplates 
the realization of assets and settlement of liabilities and commitments in the normal course of business.   
However, our large operating losses and accumulated deficit, among other things, raise substantial doubt 
about  our  ability  to  continue  as  a  going  concern.    Management  plans  to  raise  additional  financing 
(including the sale of additional equity or borrowings) and grow the revenues of our core product while 
continually  analyzing  other  market  opportunities.    However,  no  assurance  can  be  given  that  such 
financing  will  be  completed  on  terms  acceptable  to  the  Company  or  that  the  Company  will  be  able  to 
meet its revenue targets. If the Company is unable to obtain additional financing and grow revenues, we 
may  have  to  curtail  our  business  or  cease  operations.  The  financial  statements  do  not  include  any 
adjustments relating to the recoverability of assets and classification of liabilities that might be necessary 
should the Company be unable to continue as a going concern. 

4. 

Inventory

Inventory consists of the following at June 30, 2006 and 2005: 

Raw materials 
Work in process 
Finished goods 

$ 

2006 

  61,531 
  67,906 
  31,944 

$ 

2005 

  27,659 
  54,267 
–  

F-12 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
$ 

 161,381 

$ 

  81,926 

The cost of materials and production costs contained in inventory that are not useable due to the passage 
of  time,  and  resulting  loss  of  bio-effectiveness,  are  written  off  to  cost  of  product  sales  at  the  time  it  is 
determined that the product is not useable.  It is not possible to determine what portion of cost of product 
sales is represented by “spoilage.” 

5. 

Prepaid Expenses

Prepaid expenses consist of the following at June 30, 2006 and 2005: 

Prepaid contract work 
Prepaid insurance 
Prepaid rent 
Other prepaid expenses 

$ 

2006 

  7,913 
  21,340 
  30,009 
 102,284 

$ 

2005 

  65,328 
  15,853 
– 
 100,085  

$ 

 161,546 

$ 

 181,266 

6. 

Fixed Assets

Fixed assets consist of the following at June 30, 2006 and 2005: 

Production equipment 
Office equipment 
Furniture and fixtures 
Leasehold improvements 
Capital lease assets (a) 
Construction in progress 

Less accumulated depreciation 

2006 

2005 

$ 

 590,908 
  70,060 
 100,653 
 652,404 
 599,738 
  34,254 

$ 

 399,448 
  31,028 
  7,736 
 138,692 
  34,049 
 366,034  

2,048,017 
(405,724) 

 976,987 
  (134,664) 

$ 

1,642,293 

$ 

 842,323 

(a) 

June 30, 2006 balance includes asset retirement addition of $63,040. 

Depreciation and amortization expense related to fixed assets totaled $271,060 and $140,099 for 2006 and 
2005, respectively.  Accumulated amortization of capital lease assets totaled $55,644 at June 30, 2006. 

7.  Other Assets

Other assets, net of accumulated amortization, consist of the following at June 30, 2006 and 2005: 

Deferred charges 
Patents and trademarks, net of  

accumulated amortization of  
$13,831 and $12,318 

2006 

2005 

$ 

 318,885 

$ 

 204,649 

  20,102 

  21,614 

$ 

 338,987 

$ 

 226,263 

F-13 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Deferred  charges  consist  of  prepaid  legal  fees  for  patents  which  have  not  yet  been  obtained,  and 
prepayments  and  deposits  on  fixed  assets  and  contracts.  Amortization  of  patents  and  trademarks  was 
$1,513 and $2,938 for the years ended June 30, 2006 and 2005, respectively. 

8. 

Bank Line of Credit

The Company has a $375,000 revolving line of credit with Columbia River Bank that expires on March 1, 
2007. Amounts outstanding under the line bear interest at the bank’s reference rate (Wall Street Journal 
Prime  Rate,  which  was  8.25%  at  June  30,  2006)  plus  2.0%.  The  line  of  credit  is  collateralized  by  all 
accounts receivable and inventory, and is personally guaranteed by certain shareholders up to $375,000 
(see Note 12). The Company had no borrowings under the line of credit at June 30, 2006. 

9. 

Notes Payable

Notes payable consist of the following at June 30, 2006 and 2005: 

Tri-City Industrial Development Council  

(TRIDEC) note payable (a) 

$ 

  10,000 

$ 

  20,000 

2006 

2005 

Benton-Franklin Economic Development  
  District (BFEDD) note payable (b) 
Columbia River Bank note payable (c) 
Convertible notes payable (d) 
Hanford Area Economic Investment Fund 
Committee (HAEIFC) note payable (e) 

Less amounts due within one year 

 204,237 
– 
– 

 418,671 

 632,908 
 (51,351) 

 222,693 
  43,654 
 318,993 

– 

 605,340 
 (43,116) 

Amounts due after one year 

$ 

 581,557 

$ 

 562,224 

(a)  This is a non-interest bearing note, due in annual installments of $10,000, maturing August 
2006.  The note payable to TRIDEC bears no interest, but has not been discounted because 
the note was exchanged solely for cash. 

(b)  The  note  payable  to  BFEDD,  which  is  collateralized  by  substantially  all  of  the  Company’s 
assets,  and  guaranteed  by  certain  shareholders,  was  executed  pursuant  to  a  Development 
Loan Agreement.  The note contains certain restrictive covenants relating to: working capital; 
levels  of  long-term  debt  to  equity;  incurrence  of  additional  indebtedness;  payment  of 
compensation  to  officers  and  directors;  and  payment  of  dividends.    The  note  is  payable  in 
monthly installments including interest at 8.0% per annum with a final balloon payment due 
in October 2009. At June 30, 2006, the Company was not in compliance with certain of the 
covenants.  The  Company  has  obtained  a  waiver  from  BFEDD,  relating  to  these  covenants, 
through June 30, 2007. 

(c)  During fiscal year 2006, the Company repaid the note payable to Columbia River Bank from 

cash on hand. 

(d)  The merger agreement between Medical, IsoRay (WA), and IsoRay Products LLC (see Note 
1) provided the former note holders of IsoRay Products LLC with the option of exchanging 
their notes for IsoRay Medical, Inc. Series A preferred shares, or receiving IsoRay Medical, 
Inc. notes payable with substantially the same terms and conditions as their IsoRay Products 
LLC  notes.  None  of  the  IsoRay  Products  LLC  note  holders  elected  to  receive  IsoRay 
Medical,  Inc.  Series  A  preferred  shares.  Accordingly,  all  the  note  holders  (i.e.,  investors) 
were  issued  convertible  notes.  Note  holders  can  convert  principal  and  accrued  interest  on 
their outstanding balances into Series B preferred shares by exercising the warrants that were 
issued  to  them  in  connection  with  the  merger  (see  Note  1).    The  notes  accrued  interest  at 

F-14 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
10%, which was paid quarterly, and were scheduled to mature in 2006 and 2007.  All of the 
notes were converted into preferred shares or repaid during 2006. 

(e)  In June 2006, the Company entered into a note payable with HAEIFC, which is collateralized 
by  receivables,  inventory,  equipment,  and  certain  life  insurance  policies.    The  total  note 
payable facility is for $1.4  million and is to be used to purchase production equipment.  In 
June 2006, the Company requested an initial disbursement of approximately $400,000.  The 
note  contains  certain  restrictive  covenants  relating  to:  financial  ratios;  payment  of 
compensation to officers and directors; and payment of dividends.  The note accrues interest 
at 9% and is payable in monthly installments with the final installment due in July 2016. 

On  October  14,  2005,  the  Company  borrowed  $250,000  under  a  short-term  note  payable  from  a 
shareholder  who  was  later  appointed  to  the  Board  of  Directors  in  April  2006.    The  note,  which  bore 
interest at the rate of 10.0%, was paid in full on its due date of December 1, 2005.  In connection with the 
loan, the Company granted a warrant to purchase 12,500 shares  of common stock at an aggregate total 
exercise price of $10.  The Company recorded financing expenses of $60,000 related to the issuance of 
these warrants. 

Principal maturities on notes payable are due as follows: 

Year ending June 30, 
2007 
2008 
2009 
2010 
2011 
Thereafter 

$ 

51,351 
49,072 
53,593 
179,068 
38,204 
261,620 

$ 

632,908 

10.  Capital Lease Obligations

The Company leases certain equipment under long-term agreements that represent capital leases. Future 
minimum lease payments under capital lease obligations are as follows:  

Year ending June 30, 
2007 
2008 
2009 
2010 
2011 
Thereafter 

Total future minimum lease payments 
Less amounts representing interest 

Present value of net minimum lease payments 
Less amounts due in one year 

$ 

232,336 
215,057 
27,627 
– 
– 
– 

475,020 
(71,051) 

403,969 
(183,554) 

  Amounts due after one year 

$ 

220,415 

11.  Convertible Debentures Payable

Through  June  30,  2005,  the  Company  had  sold  $3,587,875  of  convertible  debentures  pursuant  to  the 
January  31,  2005  Offering  (see  Note  12).    In  July  2005,  the  Company  sold  an  additional  $550,000  of 
these convertible debentures.  The debentures, which bear interest at 8% and mature two years from the 
F-15 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
date of issuance (through June 2007), can be converted into shares of the Company’s common stock at a 
rate of $4.15 per share plus, at the discretion of the Company, either a cash payment for accrued interest, 
or that number of common shares equal to the amount of unpaid accrued interest at $4.15 per share. 

After the debentures had been outstanding for six months, the Company could, at its option, prepay them, 
in whole or in part, by paying the principal and interest accrued through the date of the prepayment. If 
only  a  portion  of  the  debenture  is  prepaid,  a  new  debenture  with  substantially  the  same  terms  and 
conditions will be issued to the debenture holder for the remaining principal balance. 

On December 13, 2005, the Board of Directors announced a short-term conversion inducement to current 
holders of the convertible debentures, originally issued in conjunction with the January 31, 2005 Private 
Placement Offering.  Holders were permitted two conversion options: 1) convert under the original terms 
of  the  debenture  to  the  Company’s  common  stock  at  a  $4.15  conversion  price,  and  register  the  newly 
issued shares in the Form SB-2 Registration Statement filed with the SEC on November 10, 2005, or 2) 
convert under terms essentially identical to those offered to purchasers of Units in the Offering of October 
17,  2005  –  a  $4.00  conversion  price  and  one  callable  warrant  to  purchase  one  share  of  the  Company's 
common  stock  at  an  exercise  price  of  $6.00  per  share  for  each  share  issued  upon  conversion  (waiving 
registration rights for approximately one year).  As of June 30, 2006, holders of $3,682,875 of debentures 
had  converted  to  common  stock  of  the  Company,  responding  to  the  inducement  of  the  second  exercise 
method described above.  As of June 30, 2006, the Company had issued 911,271 shares of common stock 
(including  approximately  23,840  incremental  shares  not  previously  available  to  holders  of  debentures 
under the original conversion terms), and 659,469 warrants to purchase shares of common, exercisable at 
$6.00  per  share.  As  of  June  30,  2006,  the  Company  recognized  $385,511  in  non-cash  short-term 
inducement expense, in accordance with SFAS No. 84. 

12.  Shareholders’ Equity (Deficit)

The authorized capital structure of the Company consists of $.001 par value preferred stock and $.001 par 
value common stock. 

Preferred Stock 

The  Company's  Certificate  of  Incorporation  authorizes  6,000,000  shares  of  $0.001  par  value  preferred 
stock available for issuance with such rights and preferences, including liquidation, dividend, conversion 
and voting rights, as described below. 

Series A 

Series A preferred shares are entitled to a 10% dividend annually on the stated par value per share. 
These shares are convertible into shares of common stock at the rate of one share of common stock 
for  each  share  of  Series  A  preferred  stock,  and  are  subject  to  automatic  conversion  into  common 
stock  upon  the  closing  of  an  underwritten  public  offering  pursuant  to  an  effective  registration 
statement under the Securities Act of 1933 covering the offer and sale of common stock in which the 
gross proceeds to the Company are at least $4 million. Series A preferred shareholders have voting 
rights  equal  to  the  voting  rights  of  common  stock,  except  that  the  vote  or  written  consent  of  a 
majority of the outstanding preferred shares is required for any changes to the Company’s Certificate 
of  Incorporation,  Bylaws  or  Certificate  of  Designation,  or  for  any  bankruptcy,  insolvency, 
dissolution or liquidation of the Company. Upon liquidation of the Company, the Company’s assets 
are first distributed ratably to the Series A preferred shareholders. At June 30, 2006, there were no 
Series A preferred shares outstanding. 

Series B 

Series B preferred shares are entitled to a cumulative 15% dividend annually on the stated par value 
per  share.  These  shares  are  convertible  into  shares  of  common  stock  at  the  rate  of  one  share  of 

F-16 

 
 
 
 
 
 
 
 
 
 
 
 
common  stock  for  each  share  of  Series  B  preferred  stock,  and  are  subject  to  automatic  conversion 
into  common  stock  upon  the  closing  of  an  underwritten  public  offering  pursuant  to  an  effective 
registration statement under the Securities Act of 1933 covering the offer and sale of common stock 
in which the gross proceeds to the Company are at least $4 million. Series B preferred shareholders 
have voting rights equal to the voting rights of common stock, except that the vote or written consent 
of  a  majority  of  the  outstanding  preferred  shares  is  required  for  any  changes  to  the  Company’s 
Certificate of Incorporation, Bylaws or Certificate of Designation, or for any bankruptcy, insolvency, 
dissolution or liquidation of the Company. Upon liquidation of the Company, the Company’s assets 
are  first  distributed  ratably  to  the  Series  A  preferred  shareholders,  then  to  the  Series  B  preferred 
shareholders.  At  June  30,  2006,  there  were  144,759  Series  B  preferred  shares  outstanding  and 
cumulative dividends in arrears were $39,356. 

In  addition  to  the  shares  of  common  stock  and  Series  B  preferred  stock  issued  pursuant  to  the  merger 
transaction (see Note 1), the Company had the following transactions that affected shareholders’ equity 
(deficit) during the years ended June 30, 2006 and 2005. 

IsoRay, Inc. June 2006 Warrant Exercise Solicitation 

In  June  2006,  the  Board  of  Directors  approved  a  limited  one-time  discount  of  the  exercise  price  of 
outstanding warrants (with exercise prices over $3.00) to $3.00 per share of common stock if the warrants 
were exercised on or before June 30, 2006.  The warrants were primarily held by investors who purchased 
them  as  part  of  the  Company’s  October  2005  and  February  2006  private  placement  offerings.    The 
Company  issued  427,764  common  shares  and  raised  $1,223,602,  net  of  offering  costs,  through  this 
warrant exercise solicitation. 

IsoRay, Inc. February 2006 Private Placement 

On  February  1,  2006  the  Company  commenced  an  offering  of  Investment  Units  (“Units”)  for  sale, 
pursuant  to  a  Private  Placement  Offering  (the  “February  2006  Offering”),  which  management  believes 
was exempt from registration under the Securities Act of 1933 ("the Act") pursuant to Section 4(2) of the 
Act  and  Rule  506  of  Regulation  D.  The  February  2006  Offering  consisted  of  a  maximum  of  89  Units, 
each Unit consisting of 5,000 shares of common stock and a warrant to purchase 5,000 shares of common 
stock at an exercise price  of $6.50 per share. The Units were sold for $22,500 per Unit. The Company 
closed this offering on February 24, 2006.  Approximately $1.1 million, net of offering costs, was raised 
under the February 2006 Offering. 

IsoRay, Inc. Subscriptions Receivable 

On December 7, 2005, the Company entered into a SICAV ONE Securities Purchase Agreement and a 
SICAV TWO Securities Purchase Agreement (collectively, the "Purchase Agreements") with Mercatus & 
Partners,  Limited,  a  United  Kingdom  private  limited  company  ("Mercatus").  The  Purchase  Agreements 
permitted Mercatus to purchase 1,748,146 shares of the Company's common stock at a purchase price of 
$3.502 per share subject to receipt of funding. As no funding had been received, on May 18, 2006, the 
Company requested immediate return of the certificates representing all shares of common stock to which 
Mercatus  had  previously  subscribed  in  accordance  with  the  terms  of  the  Purchase  Agreements.  The 
Purchase Agreements call for return of certificates within ten days if funding is not received within two 
days of receipt of the notice.  After significant delay and the Company's attainment of a court order, the 
share  certificates  were  returned.  On  August  8,  2006,  the  share  certificates  were  cancelled  and  the 
Purchase Agreements were terminated (see Note 17). 

IsoRay, Inc. October 2005 Private Placement 

On January 30, 2006 the Company closed an offering of Units for sale, pursuant to a Private Placement 
Offering  (“the  October  2005  Offering”)  of  October  17,  2005,  which  management  believes  was  exempt 
from  registration  under  the  Securities  Act  of  1933  ("the  Act")  pursuant  to  Section  4(2)  of  the  Act  and 
F-17 

 
 
 
 
 
 
 
 
 
 
 
Rule 506 of Regulation D. The October 2005 Offering consisted of a maximum of 200 Units, each Unit 
consisting of 5,000 shares of common stock and a warrant to purchase 5,000 shares of common stock at 
an exercise price of $6.00 per share. This maximum was increased, pursuant to the terms of the October 
2005 Offering, at the sole discretion of the Company, to a maximum of 300 Units. The Units were sold 
for  $20,000 per  Unit.    Approximately  $5.4  million,  net  of  offering  costs,  was  raised  under  the  October 
2005 Offering. 

IsoRay Medical, Inc. January 2005 Private Placement 

In January 2005, Medical commenced an offering (“the January 2005 Offering”) of up to $2,000,000 of 
8%  convertible  debentures  (see  Note  11)  to  accredited  investors  in  a  private  placement,  which 
management believes was exempt from registration under the Securities Act of 1933 ("the Act") pursuant 
to  Section  4(2)  of  the  Act  and  Rule  506  of  Regulation  D.    On  May  27,  2005,  Medical  amended  and 
restated the January 2005 Offering to increase the maximum amount of the offering to $4,150,000. 

Through  June  30,  2005,  Medical  sold  debentures  totaling  $3,587,875.    In  connection  with  the  sales  of 
these  debentures,  Medical  paid  commissions  totaling  $216,783  and  legal  expenses  totaling  $56,470, 
which amounts have been recorded as deferred financing costs. 

In July 2005, Medical sold an additional $550,000 of debentures pursuant to this offering.  The sale of 
these additional debentures was not subject to payment of commissions. 

In  2006,  $3,682,875  of  the  debentures  were  converted  to  common  stock  pursuant  to  a  short-term 
conversion inducement (see Note 11). 

IsoRay Medical, Inc. October 2004 Private Placement 

In October 2004, Medical commenced an offering (“the October 2004 Offering”) of up to $2,000,000 of 
securities  to  accredited  investors  in  a  private  placement,  which  management  believes  was  exempt  from 
registration under the Securities Act of 1933 ("the Act") pursuant to Section 4(2) of the Act and Rule 506 
of  Regulation  D.    The  October  2004  Offering  consisted  of  up  to  100  Investment  Units,  each  unit 
consisting of 10,000 shares of Medical’s common stock and a callable warrant to purchase 3,000 shares of 
common stock at an exercise price of $.50 per share, for $20,000 per Investment Unit.  Simultaneous with 
the  October  2004  Offering,  the  officers  and  directors  of  Medical  had  the  right  to  independently  sell 
similar Investment Units pursuant to a separate private placement memorandum on substantially the same 
terms and conditions as the October 2004 Offering. 

During  the  year  ended  June  30,  2005,  Medical  sold  76.55  Investment  Units,  representing  765,500 
common  shares  and  callable  warrants  for  the  purchase  of  229,650  common  shares,  for  cash  totaling 
$1,531,000.  In connection with the sales of the Investment Units, Medical paid commissions and expense 
allowances totaling $119,980 to broker-dealers, and legal expenses totaling $54,442 to attorneys, which 
amounts have been recorded as reductions of additional paid-in capital. 

In  connection  with  the  October  2004  Offering,  Medical  granted  the  selling  broker-dealers  warrants  to 
purchase 4.23 Investment Units at $20,000 per Investment Unit.  These Investment Units, which expire 
on  March  25,  2007,  represent  42,300  IsoRay  Medical,  Inc.  common  shares  and  12,690  warrants  to 
purchase common shares at $.50 per share. 

Issuance of Common Stock for Guarantee of Debt 

During fiscal year 2005, Medical issued 211,140 shares of its common stock to certain shareholders as an 
inducement  for  their  guarantee  of  the  Columbia  River  Bank  line  of  credit  (see  Note  8)  and  the  note 
payable to Benton-Franklin Economic Development District (see Note 9). The transactions were recorded 
at the fair value of the shares, estimated to be $348,381, since management considered this amount to be 

F-18 

 
 
 
 
 
 
 
 
 
 
 
 
 
more  readily  determinable  than  the  value  of  the  guarantees.  The  guarantees  were  recorded  as  deferred 
financing costs (see Note 2). 

F-19 

 
 
 
Issuance of Common Stock in Payment of Consulting Services 

During 2006, the Company issued 173,472 shares of its common stock in full satisfaction of consulting 
services including 168,472 shares that were issued as payment for merger consulting services (see Note 
1).  The shares were valued using the market price of the stock on the date of issue. 

Issuance of Common Stock in Partial Payment of Equipment Purchase 

During  2006,  the  Company  issued  10,000  shares  of  its  common  stock  and  paid  $962  of  cash  in  full 
satisfaction  for  the  purchase  of  production  equipment  and  repairs  and  maintenance  invoices  totaling 
$40,962.  The shares were valued using the market price of the stock on the date of issue. 

During  2005,  Medical  issued  30,303  shares  of  its  common  stock  and  paid  $40,000  of  cash  in  full 
satisfaction of the $90,000 purchase price of three laser welding stations. The transaction was recorded at 
the  purchase  price  of  the  laser  welding  stations,  since  management  considered  this  amount  to  be  more 
readily determinable than the fair value of the shares. 

Cash Payments for Fractional Shares 

During  2006,  the  Company  paid  a  combined  total  of  $734  to  the  former  common  and  preferred 
shareholders of Medical and Century for fractional shares that resulted from the merger that was effective 
July 28, 2005 (see Note 1). 

During 2005, Medical paid a combined total of $100 to the former common shareholders of IsoRay, Inc. 
(WA)  and  the  former  Class  A,  B  and  C  members  of  IsoRay  Products  LLC  for  fractional  shares  that 
resulted from the merger that was effective October 1, 2004 (see Note 1). 

Warrants to Purchase Series B Preferred Stock 

Pursuant  to  a  private  placement  of  debt  units  during  2003  and  2004,  IsoRay  Products  LLC  issued 
$365,000 of notes payable to investors (see Note 9) and granted warrants for the purchase of 227,750 of 
its  Class  A  member  shares.    In  connection  with  the  merger  transaction  of  IsoRay  (WA)  and  IsoRay 
Products  LLC  into  IsoRay  Medical,  Inc.  (see  Note  1),  Medical  exchanged  the  IsoRay  Products  LLC 
warrants for warrants to purchase 384,440 IsoRay Medical, Inc. Series B preferred shares.  The warrants 
activity is summarized as follows: 

Beginning balance outstanding 
Exercised 

2006 (a) 

2005 (a) 

  Warrants   
233,008 
(53,496) 

Price (b) 
$  0.84 
1.03 

  Warrants   
323,830 
(90,822) 

Price (b) 
$  0.91 
1.07 

Ending balance outstanding 

179,512 

$  0.79 

233,008 

$  0.84 

(a)  2005  share  and  price  data  and  2006  beginning  balances  have  been  adjusted  to  reflect  the 

0.842362 conversion ratio (see Note 1). 

(b)  Weighted average price per share. 

F-20 

 
 
 
 
 
 
 
 
 
  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The  following  table  summarizes  additional  information  about  the  Company’s  preferred  warrants 
outstanding as of June 30, 2006: 

Number of Warrants 
56,876 
28,438 
31,102 
6,220 
56,876 

  179,512 

  Price   
$  0.70 
  0.70 
  1.06 
  1.40 
  0.70 

Expiration Date 
October 30, 2006 
January 31, 2007 
February 28, 2007 
February 28, 2007 
March 30, 2007 

Warrants to Purchase Common Stock 

In connection with the February 2006 Offering, the October 2005 Offering, the October 2004 Offering, 
and  at  other  times  the  Company  has  issued  warrants  for  the  purchase  of  common  stock.    The  warrants 
activity is summarized as follows: 

Beginning balance outstanding 
Warrants issued 
Exercised 

2006 (a) 

2005 (a) 

  Warrants   
136,158 
2,878,522 
(511,911) 

Price (b) 
$  1.20 
5.85 
2.49 

  Warrants   
- 
245,454 
         (109,296) 

Price (b) 
$         -  
    0.93 
0.59 

Ending balance outstanding 

2,502,769 

$  5.73 

136,158 

$  1.20 

(a)  2005  share  and  price  data  and  2006  beginning  balances  have  been  adjusted  to  reflect  the 

0.842362 conversion ratio (see Note 1). 

(b)  Weighted average price per share. 

The  following  table  summarizes  additional  information  about  the  Company’s  common  warrants 
outstanding as of June 30, 2006: 

Number of Warrants 

19,500 
2,488 
46,419 
277,616 
12,500 
53,000 
162,500 
935,382 
680,750 
281,923 
5,691 
25,000 

  2,502,769 

Range of Exercise Prices 
$6.00 
$1.06 
$0.59 to $2.37 
$4.15 
$0.0008 
$6.00 
$6.00 
$5.75 to $6.00 
$6.00 
$6,00 to $6,50 
$4.15 
$2.00 

Expiration Date 
January 2007 
February 2007 
March 2007 
July 2007 
October 2007 
October 2007 
November 2007 
December 2007 
January 2008 
February 2008 
March 2008 
July 2015 

Common Stock Option Plans 

On July 28, 2005, the Company adopted the Amended and Restated 2005 Stock Option Plan (the "Option 
Plan")  and  the  Amended  and  Restated  2005  Employee  Stock  Option  Plan  (the  "Employee  Plan"), 
pursuant to which it may grant equity awards to eligible persons. The Option Plan allows the Board of 
F-21 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Directors to grant options to purchase up to 1,800,000 shares of common stock to directors, officers, key 
employees and service providers of the Company, and the Employee Plan allows the Board of Directors 
to grant options to purchase up to 2,000,000 shares of common stock to officers and key employees of the 
Company.  These options can be granted with various vesting schedules and have a maximum term of 10 
years. 

These plans replaced the IsoRay Medical, Inc. 2004 Stock Option Plan (“the 2004 Plan”) and the IsoRay 
Medical, Inc. 2004 Employee Stock Option Plan (“the 2004 Employee Plan”).  The stated purpose of the 
plans was to provide an incentive-based form of compensation to directors, officers, key employees and 
service providers of Medical and encourage such persons to invest in shares of Medical’s common stock, 
thereby acquiring a proprietary interest in the success of Medical. 

Replacement options were issued from the Option Plan and the Employee Plan to replace those options 
previously  granted  under  the  2004  Plan  and  the  2004  Employee  Plan.    The  replacement  options  are 
included in the totals show below for options granted and outstanding pursuant to the Option Plan and the 
Employee Plan. 

Stock-Based Compensation 

As  described  in  Note  2,  the  Company  currently  accounts  for  stock-based  compensation  in  accordance 
with  SFAS  No.  123.    As  permitted  by  SFAS  No.  123,  management  currently  accounts  for  share-based 
payments  to  employees  using  APB  25's  intrinsic  value  method,  and  provides  expanded  footnote 
disclosure when necessary. 

In  December  2004,  the  Financial  Accounting  Standards  Board  issued  SFAS  No.  123  (revised  2004), 
Share-Based Payment ("SFAS No. 123(R)"), which is a revision of SFAS No. 123.  SFAS No. 123(R) 
also supersedes APB 25, and amends SFAS No. 95, Statement of Cash Flows.  Generally, the approach in 
SFAS No. 123(R) is similar to the approach prescribed by SFAS No. 123.  SFAS No. 123(R) requires that 
all share-based payments to employees, including grants of employee stock options, be recognized in the 
income statement based on their fair values.  Pro forma disclosure will no longer be permitted.  SFAS No. 
123(R)  is  effective  at  the  beginning  of  the  first  fiscal  year  beginning  after  December  15,  2005.    The 
Company plans to adopt SFAS 123(R) on July 1, 2006 on a prospective basis.  Upon adoption, all future 
employee stock option grants plus the balance of the non-vested grants awarded prior to July 1, 2006, will 
be  expensed  over  the  stock  option  vesting  period  based  on  the  fair  value  at  the  date  the  options  are 
granted.  The Company estimates that the impact of adoption will be an additional expense of $189,430 
for employee stock options granted prior to June 30, 2006. 

A summary of the Company’s stock option activity and related information for the years ended June 30, 
2006 and 2005 is as follows: 

Beginning balance outstanding 
Granted (c) 
Cancelled 
Exercised 

2006 (a) 

Shares 
2,237,802 
1,189,722 
(196,548) 
(101,284) 

Price (b) 
$  1.31 
3.23 
1.19 
1.18 

Ending balance outstanding 
Exercisable at end of year 

3,129,692 
2,649,576 

$  2.05 
$  1.79 

2005 (a) 

Shares 

383,430 
1,962,703 
- 
(108,331) 

Price (b) 
$  1.19 
      1.33 
           - 
1.19 

2,237,802 

$  1.31 

(a)  2005  share  and  price  data  and  2006  beginning  balances  have  been  adjusted  to  reflect  the 

0.842362 conversion ratio (see Note 1). 

(b)  Weighted average price per share. 
(c)  All  options  granted  had  exercise  prices  equal  to  the  ending  market  price  of  the  Company’s 

common stock on the grant date. 

F-22 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
The following table summarizes additional information about the Company’s stock options outstanding as 
of June 30, 2006: 

Options Outstanding 

Range of Exercise Prices 
$1.00 to $1.19 
$1.96 to $2.00 
$3.80 to $4.15 
$5.50 to $6.55 
Total options 

  Shares 
1,886,179 
653,791 
318,472 
  271,250 
3,129,692 

Price (a) 
$  1.16 
1.98 
3.99 
6.15 

Life (b) 
8.97 yrs 
9.09 yrs 
9.49 yrs 
9.64 yrs 

 Options Exercisable 
  Shares 
1,717,707 
653,791 
128,078 
  150,000 
2,649,576 

Price (a) 
$  1.16 
1.98 
3.88 
6.38 

Weighted average exercise price. 

(a) 
(b)  Weighted average remaining contractual life. 

The pro forma net loss presented below for the years ended June 30, 2006 and 2005 was determined as if 
the  Company  had  accounted  for  these  options under the fair value  method of SFAS No. 123.  The fair 
value  of  these  options  was  estimated  at  the  date  of  grant  using  the  Black-Scholes  method  set  forth  in 
SFAS No. 123(R). 

Net loss as reported 
SFAS No. 123 stock option expense 

$ 

2006 
8,218,130 
1,167,086 

$ 

2005 
4,269,188 
771,365 

Pro forma net loss 

$ 

9,385,216 

$ 

5,040,553 

Net loss per share: 

Basic, as reported 
Basic, pro forma 
  Diluted, as reported 
  Diluted, pro forma 

$ 

$ 

0.68 
0.77 
0.68 
0.77 

0.78 
0.92 
0.78 
0.92 

The following assumptions were used in calculating the fair value of the options: 

Weighted average risk-free interest rate 
Expected life of the option (in years) 
Expected price volatility 
Expected dividend yield 

2006 

4.67% 
7.31 
31.24% 
0.00% 

2005 

3.50% 
10.00 
30.00% 
0.00% 

If the Company had fully accounted for its employee stock options in accordance with the provisions of 
SFAS  No.  123,  compensation  expense  would  have  been  $1,167,086  and  $771,365  greater  than  the 
amounts recorded for the years ended June 30, 2006 and 2005, respectively. 

13. 

Income Taxes 

The Company recorded no income tax provision or benefit for the years ended June 30, 2006 and 2005. 

At  June  30,  2006,  the  Company  had  a  net  deferred  tax  asset  of  approximately  $3,820,000,  arising 
principally  from  net  operating  loss  carryforwards.    The  deferred  tax  asset  was  calculated  based  on  the 
currently enacted 34% statutory income tax rate.  Since management of the Company cannot determine if 
it is more likely than not that the Company will realize the benefit of its net deferred tax asset, a valuation 
allowance equal to the full amount of the net deferred tax asset at June 30, 2006 has been established. 

F-23 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
  
 
 
 
At  June  30,  2006,  the  Company  had  tax  basis  net  operating  loss  carryforwards  of  approximately 
$11,000,000  available  to  offset  future  regular  taxable  income.    These  net  operating  loss  carryforwards 
expire through 2026. 

IsoRay Products LLC was a limited liability company prior to the merger with Medical.  In lieu of current 
federal  income  taxes  arising  at  the  company  level,  the  individual  members  were  taxed  on  their 
proportionate  share  of  the  company’s  taxable  income.    Accordingly,  there  are  no  net  operating  loss 
carryforwards related to this entity.  

14.  Related Party Transactions 

In addition to transactions described in Note 12, the Company had the following transactions with related 
parties: 

The Company received various legal services from two law firms in which one of the firm’s partners is a 
member of the Company’s Board of Directors.  The total amounts paid in 2006 and 2005 to the law firms 
were $390,000 and $285,000, respectively.  The 2006 expenses include approximately $77,000 accrued in 
accounts payable as of June 30, 2006. 

During fiscal year 2006, the Company paid $60,000 to a shareholder for strategic business and financial 
consulting. 

During 2005, Medical paid or accrued $5,600 for accounting services performed by a company owned by 
a member of Medical’s Board of Directors. 

15.  Commitments and Contingencies 

Royalty Agreement for Invention and Patent Application 

A shareholder of the Company previously assigned his rights, title and interest in an invention to IsoRay 
Products  LLC  in  exchange  for  a  royalty  equal  to  1%  of  the  Gross  Profit,  as  defined,  from  the  sale  of 
“seeds” incorporating the technology.  The patent and associated royalty obligations were transferred to 
the Company in connection with the merger transactions (see Note 1). 

The Company must also pay a royalty of 2% of Gross Sales, as defined, for any sub-assignments of the 
aforesaid  patented  process  to  any  third  parties.    The  royalty  agreement  will  remain  in  force  until  the 
expiration  of  the  patents  on  the  assigned  technology,  unless  earlier  terminated  in  accordance  with  the 
terms  of  the  underlying  agreement.    To  date,  there  have  been  no  product  sales  incorporating  the 
technology and there is no royalty due pursuant to the terms of the agreement. 

Patent and Know-How Royalty License Agreement 

IsoRay Products LLC was the holder of an exclusive license to use certain “know-how.”  This license was 
transferred to Medical and subsequently to the Company in connection with the merger transactions (see 
Note 1).  The terms of the original license agreement required the payment of a royalty based on the Net 
Factory Sales Price, as defined in the agreement, of licensed product sales.  Because the licensor’s patent 
application was ultimately abandoned, only a 1% “know-how” royalty based on Net Factory Sales Price, 
as  defined,  remains  applicable.    To  date,  there  have  been  no  product  sales  incorporating  the  licensed 
technology  and  there  is  no  royalty  due  pursuant  to  the  terms  of  the  agreement.    Management  does  not 
believe that it will ever incorporate this technology in its products and therefore that no royalty payment 
will be due. 

F-24 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Battelle Memorial Institute Production Agreement 

In April 2004, IsoRay Products LLC entered into an agreement with Battelle Memorial Institute, Pacific 
Northwest  Division  (Battelle),  the  operator  of  the  Pacific  Northwest  National  Laboratory,  for  certain 
production-related services and facilities.  This agreement was assumed by Medical and subsequently by 
the  Company  following  the  merger  transactions  (see  Note  1).    In  accordance  with  the  terms  of  the 
agreement, the Company is required to make advance payments, which are then applied against billings 
by  Battelle  as  services  are  provided.    During  the  years  ended  June  30,  2006  and  2005,  the  Company 
incurred  $868,650  and  $574,225,  respectively,  of  costs  for  production-related  services  and  facilities 
provided by Battelle.  At June 30, 2006, prepaid expenses include $7,913 related to this agreement.  The 
agreement, which expires December 31, 2007, may be terminated at any time by either party, upon giving 
a 60-day written notice to the other party. 

Operating Lease Agreements 

The  Company  leases  office  and  laboratory  space  and  production  and  office  equipment  under 
noncancelable  operating  leases.    The  lease  agreements  require  monthly  lease  payments  and  expire  on 
various dates through June 2011.  Future minimum lease payments under operating leases are as follows: 

Year ending June 30, 
2007 
2008 
2009 
2010 
2011 
Thereafter 

$ 

45,443 
13,369 
9,747 
9,604 
9,175 
– 

$ 

87,338 

In  February  2005,  the  Company  entered  into  a  lease  agreement  for  a  portion  of  a  building  in  which  it 
established production facilities.  The lease term commenced on regulatory licensing approval, which was 
obtained in October 2005, and terminates one year from the commencement date of the lease.  The annual 
rental was paid using 24,007 shares of the Company’s common stock.  Rent expense of $90,026 has been 
recognized in the year ended June 30, 2006 relating to this facility. 

Rental expense (including rent paid with common stock) amounted to $155,838 and $28,641 for the years 
ended June 30, 2006 and 2005, respectively. 

License Agreement with IBt 

In February 2006, the Company signed a license agreement with International Brachytherapy s.a. (“IBt”) 
covering North America and providing the Company with access to IBt’s Ink Jet production process and 
its  proprietary  polymer  seed  technology  for  use  in  brachytherapy  procedures  using  Cesium-131.    The 
Company paid license fees of $275,000 during 2006 and another payment of $225,000 was to be made in 
August  2006  pursuant  to  the  license  agreement.    Royalty  payments  based  on  net  sales  revenue 
incorporating the technology are also required, with minimum quarterly royalties ranging from $100,000 
to  $200,000  and  minimum  annual  royalties  ranging  from  $400,000  to  $800,000  over  the  term  of  the 
agreement. 

As of the date of this report, the August 2006 payment has not been made as the Company has been in 
continued negotiations with IBt concerning the amount and timing of future royalty payments due to the 
low market acceptance of the polymer seed technology. 

F-25 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
16.  Concentrations of Credit and Other Risks 

Financial Instruments 

The Company’s financial instruments that are exposed to concentrations of credit risk consist primarily of 
cash and cash equivalents and accounts receivable. 

The  Company’s  cash  and  cash  equivalents  are  maintained  with  high-quality  financial  institutions.    The 
accounts are guaranteed by the Federal Deposit Insurance Corporation (FDIC) up to $100,000.  At June 
30, 2006, uninsured cash balances totaled $1,726,445.  

The  Company’s  accounts  receivable  result  from  credit  sales  to  customers.  The  Company  had  three 
customers whose sales were greater than 10% for each of the years ended June 30, 2006 and 2005.  These 
customers represented 49.15% and 70.93% of the Company’s total revenues for the years ended June 30, 
2006 and 2005, respectively.  Those same customers accounted for 47.9% and 77.5% of the Company’s 
net accounts receivable balance at June 30, 2006 and 2005, respectively.  

Sales to the Company’s largest customer totaled 20.6% and 30.6% of total revenues in 2006 and 2005, 
respectively.  

The loss of any of these significant customers would have a temporary adverse effect on the Company’s 
revenues, which would continue until the Company located new customers to replace them. 

The  Company  routinely  assesses  the  financial  strength  of  its  customers  and  provides  an  allowance  for 
doubtful accounts as necessary.  

Inventories 

Most  components  used  in  the  Company’s  product  are  purchased  from  outside  sources.  Certain 
components are purchased from single suppliers. The failure of any such supplier to meet its commitment 
on  schedule  could  have  a  material  adverse  effect  on  the  Company’s  business,  operating  results  and 
financial  condition.  If  a  sole-source  supplier  were  to  go  out  of  business  or  otherwise  become  unable  to 
meet its supply commitments, the process of locating and qualifying alternate sources could require up to 
several months, during which time the Company’s production could be delayed. Such delays could have a 
material adverse effect on the Company’s business, operating results and financial condition. 

17.  Subsequent Events 

The following events and transactions have occurred subsequent to June 30, 2006: 

Return of Subscription Receivable Shares 

The  Company had  previously  entered into  Purchase  Agreements  with  Mercatus  in  December  2005  that 
permitted Mercatus to purchase 1,748,146 shares of common stock subject to the receipt of funding (see 
Note 12).  As no funding had been received, on May 18, 2006, the Company requested the return of the 
share  certificates.    After  significant  delay  and  the  Company’s  attainment  of  a  court  order,  the  share 
certificates  were  returned.    On  August  8,  2006,  the  share  certificates  were  cancelled  and  the  Purchase 
Agreements were terminated. 

August 2006 Stock Purchase Agreement 

On  August  17,  2006,  the  Company  sold  certain  shares  of  its  common  stock  and  warrants  to  purchase 
common  stock  pursuant  to  a  Common  Stock  and  Warrant  Purchase  Agreement  (the  "Purchase 
Agreement") dated August 9, 2006.  The securities were issued to 25 accredited investors pursuant to the 
exemption  from  registration  provided  by  Section  4(2)  of  the  Securities  Act  of  1933,  as  amended. 
F-26 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
MicroCapital, LLC acted as the lead investor for the transaction.  A total of $5,158,000 in cash proceeds 
(less 6% commissions to registered broker-dealers and other legal costs) was received by the Company in 
exchange  for  the  issuance  of  2,063,200  shares  of  common  stock  and  warrants  to  purchase  2,063,200 
shares of common stock.  In addition, brokers assisting the Company with the capital raise were issued 
warrants  to  purchase  206,300  shares  of  common  stock  on  identical  terms  as  the  warrants  issued  to 
investors.  If all warrants were exercised, the Company would receive $6,808,500. 

Pursuant to the Purchase Agreement, the purchase price per share of the Company’s common stock was 
$2.50,  and  the  accompanying  warrants  were  issued  with  an  exercise  price  of  $3.00  per  share.  The 
warrants and the Purchase Agreement contain anti-dilution provisions, including one providing that, if the 
Company  issues  stock  or  rights  to  acquire  stock  at  a  price  less  than  $2.00  (excluding  certain  issuances 
such  as  options  to  employees,  directors  and  certain  consultants  and  shares  issued  in  connection  with 
licensing  or  leasing  transactions),  the  Company  is  required  to  issue  to  each  investor  additional  shares 
equal to 25% of what such investor purchased in the original transaction.  The warrants are exercisable by 
the holder (subject to anti-dilution and adjustment provisions) for a period of five years from the date of 
issuance.    The  warrants  are  callable  by  the  Company  for  45  days  after  a  period  of  60  trading  days  in 
which  the  price  of  the  underlying  stock  exceeds  $4.50  per  share  for  30  of  the  60  days,  and  only  if  a 
registration statement covering the underlying shares is effective. 

In  connection  with  the  Purchase  Agreement,  the  Company  also  entered  into  a  Registration  Rights 
Agreement  whereby  the  Company  has  agreed  to  file  a  registration  statement  to  cover  the  re-sale  of  the 
shares of common stock sold and issuable upon exercise of the warrants.  Under the Registration Rights 
Agreement, the Company has agreed to file the registration statement within 60 days of the closing, cure 
any  defect  causing  the  registration  statement  to  fail  to  be  effective  within  10  business  days,  and  cause 
suspension  periods  for  the  registration  statement  to  not  exceed  60  days  in  any  360  day  period.    If  the 
Company  fails  to  comply  with  these  provisions,  the  Company  will  be  required  to  pay  as  liquidated 
damages  an  amount  equal  to 2%  of  the  aggregate  purchase  price  paid by  the investors  for each  30  day 
period during which the failure continues, not to exceed 10% of the aggregate purchase price. 

Settlement Agreements with Former Executives 

In September 2006, the Company entered into a settlement agreement with a former executive.  As part of 
the  settlement  the  Company  agreed  to  pay  the  former  executive  $100,000  in  September  2006  and 
$215,000  in  January  2007.    As  the  former  executive’s  employment  with  the  Company  ended  in  March 
2006, the full amount of both payments was accrued as of June 30, 2006 in accrued payroll. 

Also in September 2006, the Company reached a preliminary settlement agreement with its former Chief 
Financial  Officer.    The  preliminary  settlement  calls  for  payments  totaling  $288,000  through  September 
2007.    As  the  former  Chief  Financial  Officer’s  employment  ended  in  September  2006,  no  accrual  was 
made as of June 30, 2006. 

F-27 

 
 
 
 
 
 
 
SIGNATURES 

In accordance with the requirements of the Exchange Act, the Company caused this report to be 

signed on its behalf by the undersigned, thereunto duly authorized. 

Dated:  September 28, 2006  

ISORAY, INC., a Minnesota corporation 

/s/ Roger E. Girard 

By 
Roger E. Girard, Chief Executive Officer 

/s/ Jonathan R. Hunt 

By 
Jonathan R. Hunt, Chief Financial Officer 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
CERTIFICATION 

Exhibit 31.1 

I, Roger E. Girard, Chief Executive Officer, certify that: 

1. 
2. 

I have reviewed this quarterly report on Form 10-KSB of IsoRay, Inc.; 
Based on my knowledge, this report does not contain any untrue statement of a material 
fact or omit to state a material fact necessary to make the statements made, in light of the circumstances 
under which such statements were made, not misleading with respect to the period covered by this report;  
Based  on  my  knowledge,  the  financial  statements,  and  other  financial  information 
included in this report, fairly present in all material respects the financial condition, results of operations 
and cash flows of the small business issuer as of, and for, the periods presented in this report;  

3. 

4. 

The  small  business  issuer's  other  certifying  officer(s)  and  I  are  responsible  for 
establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in  Exchange  Act  Rules 
13a-15(e) and 15d-15(e)) for the small business issuer and have:  

(a)  Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure 
controls and procedures to be designed under our supervision, to ensure that material information relating 
to the small business issuer, including its consolidated subsidiaries, is made known to us by others within 
those entities, particularly during the period in which this report is being prepared;  

(b)  Omitted;  
(c)  Evaluated  the  effectiveness  of  the  small  business  issuer's  disclosure  controls  and 
procedures and presented in this report our conclusions about the effectiveness of the disclosure controls 
and procedures, as of the end of the period covered by this report based on such evaluation; and  

(d)  Disclosed  in  this  report  any  change  in  the  small  business  issuer's  internal  control 
over  financial  reporting  that  occurred  during  the  small  business  issuer's  most  recent  fiscal  quarter  (the 
small business issuer's fourth fiscal quarter in the case of an annual report) that has materially affected, or 
is  reasonably  likely  to  materially  affect,  the  small  business  issuer's  internal  control  over  financial 
reporting; and  

5. 

The small business issuer's other certifying officer(s) and I have disclosed, based on our 
most recent evaluation of internal control over financial reporting, to the small business issuer's auditors 
and  the  audit  committee  of  the  small  business  issuer's  board  of  directors  (or  persons  performing  the 
equivalent functions):  

(a)  All significant deficiencies and material weaknesses  in the design or operation of 
internal control over financial reporting which are reasonably likely to adversely affect the small business 
issuer's ability to record, process, summarize and report financial information; and  

(b)  Any fraud, whether or not material, that involves management or other employees 

who have a significant role in the small business issuer's internal control over financial reporting. 

Date:  September 28, 2006 

/s/ Roger E. Girard 
Roger E. Girard  
Chief Executive Officer 

** The introductory portion of paragraph 4 of this certification that refers to the certifying officers' responsibility for establishing 
and  maintaining  internal  control  over  financial  reporting  for  the  company,  as  well  as  paragraph  4(b),  have  been  omitted  in 
accordance  with  Release  No.  33-8545  (March  2,  2002)  because  the  compliance  period  has  been  extended  for  small  business 
issuers until the first fiscal year ending on or after July 15, 2007. 

 
 
 
 
 
 
  
 
I, Jonathan R. Hunt, Chief Financial Officer, certify that: 

CERTIFICATION 

Exhibit 31.2 

1. 
2. 

I have reviewed this quarterly report on Form 10-KSB of IsoRay, Inc.; 
Based on my knowledge, this report does not contain any untrue statement of a material 
fact or omit to state a material fact necessary to make the statements made, in light of the circumstances 
under which such statements were made, not misleading with respect to the period covered by this report; 
Based  on  my  knowledge,  the  financial  statements,  and  other  financial  information 
included in this report, fairly present in all material respects the financial condition, results of operations 
and cash flows of the small business issuer as of, and for, the periods presented in this report; 

3. 

4. 

The  small  business  issuer's  other  certifying  officer(s)  and  I  are  responsible  for 
establishing  and  maintaining  disclosure  controls  and  procedures  (as  defined  in  Exchange  Act  Rules 
13a-15(e) and 15d-15(e)) for the small business issuer and have: 

(a)  Designed  such  disclosure  controls  and  procedures,  or  caused  such  disclosure 
controls and procedures to be designed under our supervision, to ensure that material information relating 
to the small business issuer, including its consolidated subsidiaries, is made known to us by others within 
those entities, particularly during the period in which this report is being prepared; 

(b)  Omitted; 
(c)  Evaluated  the  effectiveness  of  the  small  business  issuer's  disclosure  controls  and 
procedures and presented in this report our conclusions about the effectiveness of the disclosure controls 
and procedures, as of the end of the period covered by this report based on such evaluation; and 

(d)  Disclosed  in  this  report  any  change  in  the  small  business  issuer's  internal  control 
over  financial  reporting  that  occurred  during  the  small  business  issuer's  most  recent  fiscal  quarter  (the 
small business issuer's fourth fiscal quarter in the case of an annual report) that has materially affected, or 
is  reasonably  likely  to  materially  affect,  the  small  business  issuer's  internal  control  over  financial 
reporting; and 

5. 

The small business issuer's other certifying officer(s) and I have disclosed, based on our 
most recent evaluation of internal control over financial reporting, to the small business issuer's auditors 
and  the  audit  committee  of  the  small  business  issuer's  board  of  directors  (or  persons  performing  the 
equivalent functions): 

(a)  All significant deficiencies and material weaknesses  in the design or operation of 
internal control over financial reporting which are reasonably likely to adversely affect the small business 
issuer's ability to record, process, summarize and report financial information; and 

(b)  Any fraud, whether or not material, that involves management or other employees 

who have a significant role in the small business issuer's internal control over financial reporting. 
Date:  September 28, 2006 

/s/ Jonathan R. Hunt 
Jonathan R. Hunt 
Chief Financial Officer 

** The introductory portion of paragraph 4 of this certification that refers to the certifying officers' responsibility for establishing 
and  maintaining  internal  control  over  financial  reporting  for  the  company,  as  well  as  paragraph  4(b),  have  been  omitted  in 
accordance  with  Release  No.  33-8545  (March  2,  2002)  because  the  compliance  period  has  been  extended  for  small  business 
issuers until the first fiscal year ending on or after July 15, 2007. 

 
 
 
 
 
 
 
 
 
Section 1350 Certifications 

Exhibit 32 

Pursuant to 18 U.S.C. § 1350 as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 
2002, each of the undersigned officers of IsoRay, Inc., a Minnesota corporation (the "Company"), hereby 
certify that: 

To  my  knowledge,  the  Annual  Report  on  Form  10-KSB  of  the  Company  for  the  annual  period 
ended June 30, 2006 (the "Report") fully complies with the requirements of Section 13(a) or 15(d) of the 
Securities  Exchange  Act  of  1934  and  that  information  contained  in  the  Report  fairly  presents,  in  all 
material respects, the financial condition and results of operations of the Company. 

Dated:  September 28, 2006  

Dated:  September 28, 2006 

/s/ Roger E. Girard 

ROGER E. GIRARD 
CHIEF EXECUTIVE OFFICER 

/s/ Jonathan R. Hunt 

JONATHAN R. HUNT 
CHIEF FINANCIAL OFFICER