SB-2 1 a2111596zsb-2.htm SB-2

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TABLE OF CONTENTS
Index to Consolidated Financial Statements

As filed with the Securities and Exchange Commission on May 19, 2003

Registration No. 333-

SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549

FORM SB-2
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933

ISONICS CORPORATION
(Exact name of registrant as specified in its charter)

California
(State or other jurisdiction)

2819
(Primary Standard Industrial
Code Number)

77-0338561
(I.R.S. Employer of incorporation or
organization Identification Number)

5906 McIntyre Street
Golden, Colorado 80403
(303) 279-7900
(Address, including zip code, and telephone number, including
area code, of registrant's principal executive offices)

James E. Alexander
President, Isonics Corporation
5906 McIntyre Street
Golden, Colorado 80403
(303) 279-7900
(Name, address, including zip code, and telephone number, including area code, of agent for service)

Copies to:
Herrick K. Lidstone, Jr.
Burns, Figa & Will, P.C.
Suite 1030
6400 South Fiddler's Green Circle
Englewood, CO 80111
Tel: 303-796-2626
Fax: 303-796-2777

Approximate date of commencement of proposed sale to the public:
As soon as practicable after the effective date of this Registration Statement.

If securities being registered on this Form are being offered in connection with the formation of a holding company and there is compliance with General Instruction G, check the following box. o

If this form is being filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, check the following box and list the Securities Act registration statement number in the earlier effective registration statement for the same offering. o

If this form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number in the earlier effective registration statement for the same offering. o

CALCULATION OF REGISTRATION FEE

Title of Each Class of Securities to be Registered	Amount to be Registered(a)	Proposed Maximum Offering Price Per Unit	Proposed Maximum Aggregate Offering Price	Amount of Registration Fee(c)


Common Stock	182,947	$1.00	$182,947	$15

Class B Common Stock Purchase Warrants	1,350,000	$.45	$607,500	$50

Shares of Common Stock underlying Class B Common Stock Purchase Warrants	1,350,000	$1.50(b)	$2,025,000	$164

Class C Common Stock Purchase Warrants	1,350,000	$.45 (d)	$607,500	$50

Shares of Common Stock underlying Class C Common Stock Purchase Warrants	1,350,000	$2.50(b)	$3,375,000	$274

TOTAL				$553*

*: Paid with this filing.
(a): This registration statement includes 182,947 shares and 1,350,000 Class B Warrants issued to certain accredited investors in a private placement completed in December 2000 and those that were issued to them as a result of negotiations between Isonics and the selling shareholders completed in July 2001 when we were not able to gain effectiveness of a registration statement originally filed for the selling shareholders in March 2001. The registration fee for the shares and the Class B warrants is based on the closing market price for the Registrant's shares and Class B warrants on May 13, 2003, pursuant to Rule 457(c).
(b): Based on the exercise price of the Class B warrants and Class C warrants, respectively, pursuant to Rule 457(g)(1) under the Securities Act of 1933, as amended.
(c): Calculated at the rate of $80.90 per $1,000,000 pursuant to fee rate advisory #8 for fiscal year 2003. The registration fee is based on the closing market price for the Registrant's common stock on May 13, 2003, pursuant to Rule 457(c).
(d): The registration fee is based on the Registrant's estimate of the sales price of the Class C warrants. Although Class C warrants are currently outstanding, there is no significant market for the Class C warrants and no basis to calculate the value of the Class C warrants pursuant to Rule 457(c).

In accordance with SEC Rule 429, in addition to the shares of our common stock, Class B warrants, and Class C warrants included in this Registration Statement, the prospectus also includes 430,110 Class B redeemable common stock purchase warrants, 632,610 Class C redeemable common stock purchase warrants, 430,110 shares of common stock underlying the Class B redeemable common stock purchase warrants and 632,610 shares of common stock underlying the Class C redeemable common stock purchase warrants from post-effective amendment number 4 on Form SB-2 to our Registration Statement on Form S-4 filed with the Securities and Exchange Commission on March 24, 2003 (SEC File No. 333-37696) (as to which the Registrant paid a filing fee of $5,358), which became effective on April 9, 2003.

Pursuant to Rule 416 of the Securities Act of 1933, there are also being registered hereunder such additional shares as may be issued to the Selling Stockholders because of future dividends, stock distributions, stock splits, or similar capital adjustments.

The Registrant hereby amends this registration statement on such date or dates as may be necessary to delay its effective date until the Registrant shall file a further amendment which specifically states that this registration statement shall thereafter become effective in accordance with Section 8(a) of the Securities Act of 1933 or until the registration statement shall become effective on such date as the Commission, acting pursuant to said Section 8(a), may determine.

Subject to Completion dated May 19, 2003

PROSPECTUS dated , 2003

ISONICS CORPORATION

Securities Offered for Resale by Selling Holders

1,350,000 Class B Warrants

182,947 Shares of Common Stock

Securities Offered by Isonics Corporation

1,780,110 Class C Redeemable Warrants underlying		3,762,720 shares of Common stock underlying
430,110 outstanding Class B Warrants that are publicly-held, and 1,350,000 outstanding Class B Warrants that are included in this prospectus for resale		430,110 outstanding Class B Warrants that are publicly held, 202,500 outstanding Class C Warrants that are publicly held, and 1,350,000 outstanding Class B Warrants that are included in this prospectus for resale 1,780,110 Class C Warrants issuable upon exercise of outstanding Class B Warrants

This prospectus relates to our prospective issuance of shares of Common Stock and Class C Warrants upon exercise of 1,780,110 outstanding Class B Warrants and our prospective issuance of shares of Common Stock upon exercise of 202,500 outstanding and 1,780,110 issuable Class C Warrants. This prospectus also relates to the Selling Holders' offer to sell 1,350,000 restricted Class B Warrants and 182,947 shares of common stock they hold.

The Class B Warrants are exercisable at $1.50 per share through December 31, 2005, to purchase one share of Common Stock and one Class C Warrant. The Class C Warrants are exercisable at $2.50 per share through December 31, 2005, to purchase one share of Common Stock. We may redeem our outstanding Class B and Class C Warrants for $0.10 each if our Common Stock trades at or above $3.75 per share for any 20 of 30 consecutive trading days provided a registration statement permitting the exercise of those warrants is then current and in effect. Our Common Stock is traded in the over-the-counter market and quoted on the Nasdaq SmallCap Stock Market under the symbols "ISON." On May 13, 2003 the reported closing price of our Common Stock was $1.00 per share. Our Class B Warrants and Class C Warrants are eligible for trading under the symbols ISONL and ISONZ, respectively, but no significant market for these warrants has developed.

An investment in our Class C Warrants and our Common Stock (should you choose to exercise any of our Warrants) involves a high degree of risk. See "Risk Factors" Beginning on Page 7. In deciding whether to exercise the warrants you hold, you should rely only on the information contained in this prospectus. We have not authorized anyone to provide you with any information that is different from this information.

NEITHER THE SECURITIES AND EXCHANGE COMMISSION NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR DISAPPROVED THESE SECURITIES OR DETERMINED IF THIS PROSPECTUS IS TRUTHFUL OR COMPLETE. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

Only residents of states in which we have qualified the Class C Warrants and the underlying shares of common stock may exercise their Class B Warrants or Class C Warrants. When you exercise the Class B Warrants or Class C Warrants, you will have to provide us information as to your state of residence. We may seek qualification from time-to-time in other states. You may call Isonics Corporation at 303-279-7900, to determine whether your state of residence has been included.

(inside front cover)

TABLE OF CONTENTS


Summary
Risk Factors
Management's Discussion and Analysis of Financial Condition and Results of Operations
Procedure for Exercise of Warrants and Tax Aspects
Securities Offered, The Selling Holders and the Plan of Distribution
Use of Proceeds
Business
Management
Security Ownership of Certain Beneficial Holders and Management
Executive Compensation
Certain Relationships and Related Party Transactions
Isonics' Capital Stock
Market for Common Equity and Related Stockholder Matters
Shares Available for Future Sale
Securities and Exchange Commission Position on Indemnification for Securities Act Liabilities
Experts
Legal Matters
How to Obtain Additional Information
Financial Statements—April 30, 2002
Financial Statements—January 31, 2003

Isonics has not authorized anyone to give any information or make any representation about the offering that differs from, or adds to, the information in this prospectus or the documents that are publicly filed with the Securities and Exchange Commission. Therefore, if anyone does give you different or additional information, you should not rely on it. The delivery of this prospectus does not mean that there have not been any changes in Isonics' condition since the date of this prospectus. If you are in a jurisdiction where it is unlawful to offer to purchase or exercise the securities offered by this prospectus, or if you are a person to whom it is unlawful to direct such activities, then the offer presented by this prospectus does not extend to you. This prospectus speaks only as of its date except where it indicates that another date applies. Documents that are incorporated by reference in this prospectus speak only as of their date, except where they specify that other dates apply. The information in this prospectus may not be complete and may be changed. The holders may not exercise these securities until the registration statement filed with the Securities and Exchange Commission is effective. This prospectus is not an offer to purchase or exercise these securities and it is not soliciting an offer to purchase or exercise these securities in any state where the purchase or exercise is not permitted.

SUMMARY

This summary presents selected information from this prospectus. You should carefully read this entire prospectus and the documents to which the prospectus refers in order to understand this offering. See "How to Obtain Additional Information."

Isonics Corporation

We are an advanced materials and technology company. We are selling, developing and we anticipate commercializing additional products created from materials, including materials whose natural isotopic ratios have been modified as well as non-isotopic (natural) materials. An isotope is one of two or more species (or nuclides) of the same chemical element that differ from one another only in the number of neutrons in the atom's nucleus. The different number of neutrons can create significantly different nuclear properties. The most well-known of these properties is radioactivity. Radioactive isotopes (or radioisotopes) can be found in nature. Most of our radioisotopes, however, are man-made. Stable isotopes, as distinguished from radioisotopes, are not radioactive.

Several manufacturers, located primarily in republics that once were part of the Soviet Union, produce radioactive and stable isotopes. We buy these isotopes from the manufacturers and resell them in the form of common chemical compounds. For example, oxygen-18 is sold as water, and carbon-13 is sold as carbon dioxide. Today our business addresses the material needs of two primary markets:

•: life sciences (involving isotopic materials) and
•: semiconductor materials and products (including both isotopic and non-isotopic materials).

While we currently are focusing on these two markets, we continue to evaluate other applications for both stable and radioisotopes and non-isotopic materials. In November 2002, we commenced manufacturing silicon-on-insulator ("SOI") wafers in our own manufacturing facility; previously we used a contract manufacturer to do so. In December 2002 we acquired certain isotope-based trace detection technology that can be used to detect explosives and chemical and biological weapons. We acquired this technology from Institut of Umwelttechnologien GmbH ("IUT"), an entity in which we hold a 6% ownership interest. If and when we begin sales of these products, we expect these products to constitute a third market (the homeland security market) for our products.

We also sell isotopes for use in basic scientific research and industrial applications. We believe our core competency is our ability to identify, develop, source, and commercialize products and services based on isotopically engineered materials as well as non-isotopic semi-conductor materials.

We were formed in March 1992, as a partnership, and were subsequently incorporated in California in March 1993, as A&R Materials, Inc. In September 1996, we changed our name to Isonics Corporation. Our web site is www.isonics.com. Our common stock is traded on the Nasdaq SmallCap Market under the symbol "ISON." The market for our stock and warrants has historically been characterized by low volume, and broad price and volume volatility. Although our common stock and warrants have been quoted on the Nasdaq SmallCap market, our stock was trading at prices significantly below the $1.00 per share minimum maintenance requirements at times during the last half of the calendar year ending December 31, 2002 and has again been trading below $1.00 per share since late February 2003. As a result, we could potentially be at risk of Nasdaq action to remove our securities from its SmallCap market. In any event, we cannot give any assurance that a stable trading market will develop for our stock or our warrants.

The address of our principal executive offices and our telephone and facsimile numbers at that address are:

Isonics Corporation
5906 McIntyre Street
Golden, Colorado 80403
Telephone No.: (303) 279-7900
Facsimile No.: (303) 279-7300

We currently conduct some of our operations through one wholly owned-subsidiary and one partially-owned subsidiary. The following chart provides some information about those subsidiaries:

Name and Headquarters		Place of Formation		Ownership Percentage		Business
Chemotrade GmbH Dusseldorf, Germany		Germany		100	%	Chemotrade GmbH ("Chemotrade") is a value-added re-seller of stable and radioactive isotopes. It supplies radioactive isotopes for pharmaceutical and industrial research as well as for industrial and medical imaging, calibration sources and for brachytherapy applications. Additionally, Chemotrade supplies various stable isotope labeled compounds for pharmaceutical research and drug design, as well as oxygen-18 for use in producing a radioisotope used in positron emission tomography. Chemotrade's market is primarily Europe, but sales are also made to North America and Asia.
IUT Detection Technologies, Inc.		Colorado, USA		85	%	IUT Detection Technologies,Inc. will own and commercialize the detection technology that we acquired from IUT. This isotope-based trace detection technology will be used to detect explosives and chemical and biological weapons.

The foregoing does not include Isonics' minority ownership in two companies:

•: Interpro Zinc, LLC, a Colorado entity which engages in the research and development for the recovery and recycling of zinc metal from various sources. Isonics has a 25% interest in this entity.
•: IUT, an entity based in Berlin, Germany which performs research and development, and manufacturing of radioisotopes. Isonics has a 6% interest in IUT through Chemotrade. Although we had an option to purchase an additional 29.1% interest in IUT from an unaffiliated third party, the option expired unexercised on February 28, 2003.

Shares Offered by Isonics Upon Exercise of Warrants

Isonics Corporation is offering up to a maximum of 3,762,720 shares of common stock and 1,780,110 Class C Warrants to:

•: holders of 430,110 outstanding Class B warrants which were registered in our previous registration statement on Form S-4,

•: holders of an additional 1,350,000 Class B warrants which are outstanding as a result of a private placement completed in December 2000, and for which additional securities were issued in July 2001,
•: holders of 202,500 outstanding Class C warrants which are outstanding, which were registered in our previous registration statement on Form S-4, and
•: holders of an additional 1,780,110 Class C warrants issuable upon exercise of the outstanding Class B warrants.

The Class B warrants are exercisable at $1.50 per share. The Class C warrants are exercisable at $2.50 per share. Both the Class B warrants and the Class C warrants expire on December 31, 2005.

The Offering by the Selling Holders

This Prospectus also relates to the sale to the public of up to:

•: 182,947 shares of our common stock issued to and held by the Selling Holders; and
•: 1,350,000 Class B warrants issued to and held by the Selling Holders.

These securities were issued in December 2000 and in July 2001 as "restricted securities" as that term is defined in Rule 144 adopted by the Securities and Exchange Commission under the Securities Act of 1933.

Risk Factors

The purchase of Isonics' common stock and warrants involves a high degree of risk. You should purchase our securities or exercise your Class B warrants and/or Class C warrants only if you can afford a complete loss of your investment. See "Risk Factors." We have not authorized anyone to give you information or to make any representation other than those contained in this prospectus.

Use of Proceeds

We have used and expect to continue to use any proceeds from the exercise of Class B and Class C Warrants for the expansion of our SOI operations, financing of our operations through IUT Detection Technologies, Inc., research and development, and additional working capital. See "Financial Statements."

A Note About Forward-Looking Statements

In our effort to make the information in this prospectus more meaningful, this prospectus contains both historical and forward-looking statements. All statements other than statements of historical fact are forward-looking statements within the meanings of Section 27A of the Securities Act of 1933, and Section 21E of the Securities Exchange Act of 1934. Forward-looking statements in this prospectus are not based on historical facts, but rather reflect the current expectations of our management concerning future results and events.

The forward-looking statements generally can be identified by the use of terms such as "believe," "expect," "anticipate," "intend," "plan," "foresee," "likely," "will" or other similar words or phrases. Similarly, statements that describe our objectives, plans, or goals are, or may be, forward-looking statements.

Forward-looking statements involve known and unknown risks, uncertainties and other factors that may cause the actual results, performance or achievements of Isonics to be different from any future results, performance and achievements expressed or implied by these statements. You should review carefully all information, including the financial statements and the notes to the financial statements

included in this prospectus. In addition to the factors discussed under "Risk Factors," the following important factors could affect future results, causing the results to differ materially from those expressed in the forward-looking statements in this prospectus:

•: our working capital shortage, which has been aggravated by additional research, development, and marketing expenses necessary to expand our existing and new business lines;
•: demand for, and acceptance of, our materials;
•: changes in development, distribution, and supply relationships;
•: the impact of competitive products and technologies and no assurance as to the validity of our intellectual property rights;
•: the risk of operations in Russia, the Republic of Uzbekistan, and the Republic of Georgia;
•: dependence on future product development;
•: the possibility of future customer concentration;
•: our dependence on key personnel;
•: the volatility of our stock price and the potential adverse impact on our market which may be caused by future sales of restricted securities;
•: the possibility of environmental violations relating to our business activities and products; and
•: the impact of new technologies.

These factors are not necessarily all of the important factors that could cause actual results to differ materially from those expressed in the forward-looking statements in this prospectus. Other unknown or unpredictable factors also could have material adverse effects on the future results of Isonics. The forward-looking statements in this prospectus are made only as of the date of this prospectus and Isonics does not have any obligation to publicly update any forward-looking statements to reflect subsequent events or circumstances. We cannot assure you that projected results will be achieved.

RISK FACTORS

An investment in and ownership of our common stock is one of high risk. You should carefully consider the risks described below before deciding whether to exercise your Class B Warrants, your Class C Warrants, or invest in or continue to hold our common stock. If any of the contingencies discussed in the following paragraphs or other materially adverse events actually occurs, the business, financial condition and results of operations could be materially and adversely affected. In such case, the trading price of our common stock could decline, and you could lose all or part of your investment. We have not authorized anyone to give you information or to make any representation other than those contained in this prospectus.

Unless we are able to develop and sell new products profitably, we may be unable to remain competitive, furthering the likelihood that our losses and negative cash flow will continue.

We have not operated profitably since our 1996 fiscal year. We recognized net income for the year ended April 30, 2000, only because of the gain recognized on the sale of our depleted zinc assets to Eagle-Picher. Through November 30, 1999, our revenues had historically been derived from our depleted zinc operations.

As a consequence of our sale of the depleted zinc operations, our operations and our ability to generate revenues are more heavily dependent upon our ability to develop new products, including those that use stable and radioactive isotopes, and to market and sell those products profitably. We may be unable to develop products that can be profitably marketed and sold, which may prevent us from paying creditors as debts are due, and, in turn, may materially impact our ability to continue our business operations. See "Business."

It is possible that the following circumstances may develop and may adversely impact our available working capital and materially impact our ability to continue our business operations:

•: unanticipated expenses in developing our new products or in producing or marketing our existing products;
•: the necessity of having to protect and enforce our intellectual property rights;
•: technological and market developments; and
•: a corporate decision to expand our production capacity through capital investment or acquisition.

We may not be able to obtain equity or debt financing on reasonable terms when we need such financing. The unavailability of additional financing, when needed, could have a material adverse effect on our business. See "Management's Discussion and Analysis" and "Business."

We have raised capital and issued shares during the years ended April 30, 2002 and 2001 and subsequently, which has resulted in dilution to our existing shareholders. This was necessary in order to provide necessary working capital or obtain assets and services, and we will likely issue more shares to raise additional capital or to obtain other services or assets, any of which may result in substantial additional dilution.

During the course of the last two fiscal years and the current fiscal year, we have been required to raise in excess of $2.2 million of net working capital (after expenses) to finance our business operations and acquisitions. We have raised this capital by issuing shares of common stock and warrants to accredited investors and as compensation to investment bankers making introductions to the accredited investors. In many cases, these issuances or the exercise price of the warrants were below the then-current market prices, which issuances can be considered dilutive to our existing shareholders—

both as a reduction of their percentage ownership in Isonics and because of issuances at prices below the market.

There are provisions associated with the preferred stock private placement completed on July 29, 1999 that if triggered, would reduce the current conversion price and effectively allow the preferred shares to convert to common stock at a more favorable ratio. As a result of various transactions, the preferred stock is now convertible at 1.67 shares of common stock for each share of Series A Convertible Preferred Stock outstanding. As of April 28, 2003 there were 963,666 shares of Series A Convertible Preferred Stock outstanding convertible into 1,609,322 shares of common stock.

If we are successful in raising additional working capital, we will likely have to issue additional shares of our common stock and common stock purchase warrants at prices that may dilute the interests of our existing shareholders. See "Management's Discussion and Analysis," and "Business."

Operations in Russia, the Republic of Uzbekistan, and the Republic of Georgia may be disrupted because of a volatile political and economic climate beyond our control, which could adversely affect our supply of raw materials.

Operations in Russia, the Republic of Uzbekistan, and the Republic of Georgia entail risks. The former republics of the Soviet Union including Uzbekistan and Georgia are experiencing political, social and economic change as they obtain independence from the former central government in Moscow. Some of the republics, including Russia, Uzbekistan and Georgia, are attempting to transition from a central-controlled economy toward a market-based economy. These changes have involved, in some cases, armed conflict and the risk of continued instability has increased since the terrorist attacks on the United States of September 11, 2001. Although Uzbekistan borders Afghanistan, the conflict in Afghanistan has not impacted our supply of isotopes. Political or economic instability in these republics may continue or worsen. The price, availability, quality, quantity, ability to export and supply of stable and radioactive isotopes could be directly affected by political, economic and military conditions in Russia, Uzbekistan and Georgia.

We are dependent on suppliers from Russia, Uzbekistan, and Georgia for approximately 95% of both our stable isotopes and our radioisotopes. Accordingly, our operations could be materially adversely affected if hostilities in Russia, Uzbekistan, or Georgia should occur, if trade between Russia, Uzbekistan and/or Georgia and the United States were interrupted or ceased, if political conditions in Russia, Uzbekistan or Georgia disrupt transportation or processing of our goods, if laws or government policies concerning foreign business operations in Russia, Uzbekistan or Georgia change substantially, or if tariffs are introduced. See "Management's Discussion and Analysis" and "Business."

Because we depend upon few customers for a significant portion of our revenues, our business may be materially and adversely affected if we lose any one of these customers.

As described in more detail below in "Business-Significant Customers," below, two customers accounted for approximately 42% and 47% of revenues during the year ended April 30, 2002 and the nine months ended January 31, 2003, respectively. Two customers accounted for approximately 47% and 57% of our German operation's revenue for the year ended April 30, 2002 and the nine months ended January 31, 2003, respectively. While our goal is to diversify our customer base, we expect to continue to depend upon a relatively small number of customers for a significant percentage of our revenues for the foreseeable future. Significant reductions in sales to any of our large customers have had, and may in the future have, a material adverse effect on us by reducing our revenues and our gross margins. Present or future customers could terminate their purchasing patterns with us or significantly change, reduce or delay the amount of isotope or other products ordered from us. See "Management's Discussion and Analysis" and "Business."

If demand for our product grows suddenly, we may lack the resources to meet demand or we may be required to increase our capital spending significantly.

We have experienced, and may again experience, periods of rapid growth that place a significant strain on our financial and managerial resources. Through our marketing efforts we have increased the number and type of products we offer to our customers in our effort to replace the cash flow reduction that occurred as a result of the sale of our depleted zinc operations, and we are continuing to look for new products to offer. Through our research and development efforts we are also attempting to develop additional products and lines of business. Our ability to manage growth effectively, particularly given our increasing scope of operations, will require us to continue to implement and improve our management, operational and financial information systems, and will require us to develop the management skills of our personnel and to train, motivate and manage our employees. Our failure to effectively manage growth could increase our costs of operations and reduce our margins and liquidity, which could have a material adverse effect on our business, financial condition and results of operations. See "Business."

Because we are dependent upon our key personnel for our future success, if we fail to retain or attract key personnel, our business will be adversely affected.

Our future success will depend in significant part upon the continued service of our key technical, sales and senior management personnel, including James E. Alexander, our President and Chief Executive Officer; Boris Rubizhevsky, our Senior Vice President, Isotope Production and Supply; Daniel Grady, Vice President, Life Sciences, Stephen Burden, Vice President, Semiconductor Materials, and Hans Walitzki, Vice President, Advanced Wafer Technology. We have obtained $1,000,000 of key man life insurance on the lives of Mr. Alexander and Mr. Rubizhevsky. Currently neither Mr. Alexander nor Mr. Rubizhevsky is covered by employment agreements and the compensation committee has not yet determined if they will issue new contracts. Dr. Grady and Dr. Burden are covered by employment agreements with an indefinite term that provides at-will employment, terminable at any time by either party. Dr. Walitzki is covered by an employment agreement through November 2006.

We believe that our future success will also depend upon our ability to attract and retain other qualified personnel for our operations. The failure to attract or retain such persons could materially adversely affect our business, financial condition and results of operations. See "Management."

We may not be able to protect our intellectual property, which would reduce our competitive advantage.

We rely primarily on a combination of patents and patent applications, trade secrets, confidentiality procedures, and contractual provisions to protect our technology. Despite our efforts to protect our technology, unauthorized parties may attempt to copy aspects of our products or to obtain and use information that we regard as proprietary. Policing unauthorized use of our technology and products is difficult. In addition, the laws of many countries do not protect our rights to information, materials and intellectual property that we regard as proprietary, and that are protected under the laws of the United States. We may not be able to protect our proprietary interests, or our competitors may independently develop similar technology or intellectual property. If either one of these situations occurs, we may lose existing customers and our business may suffer. See "Business."

The validity of any of the patents licensed to us, or that may in the future be owned by us, may not be upheld if challenged by others in litigation. Further, our products or technologies, even if covered by our patents, may infringe upon patents owned by others. We could incur substantial costs in defending suits brought against us, or any of our licensors, for infringement, in suits by us against others for infringement, or in suits contesting the validity of a patent. Any such proceeding may be protracted. In any suit contesting the validity of a patent, the patent being contested would be entitled

to a presumption of validity and the contesting party would be required to demonstrate invalidity of such patent by clear and convincing evidence. If the outcome of any such litigation were adverse to our interests, our liquidity and business operations would be materially adversely affected.

We face technological change and intense competition both domestically and internationally which may adversely affect our ability to sell our products profitably.

Although we do not believe that any entity produces a complete range of stable enriched isotopes for commercial sale, many of our competitors have significantly greater funding than do we and may be able to develop products which are competitive with our products. See "Business."

Further, it is possible that future technological developments may occur. The market for our isotope products is characterized by rapidly evolving technology and continuing process development. Our future success will depend upon our ability to develop and market isotope products that meet changing customer and technological needs on a cost effective and timely basis. If we fail to remain competitive by anticipating the needs of our customers and our customers contract with other suppliers, our revenues and resulting cash flow could be materially and adversely affected.

We could be subject to environmental regulation by federal, state and local agencies, including laws that impose liability without fault, which could produce working capital shortages and lessen shareholders' equity.

We could become subject to a variety of federal, state, and local environmental regulations relating to the use, storage, discharge and disposal of hazardous chemicals used during the isotope product delivery and manufacturing process, although we do not believe that there is any such regulation directly applicable to our current operations. Regulations that become applicable to our operations in the future could restrict our ability to expand our facilities or could require us to acquire costly equipment or to incur other significant expenses to comply with governmental regulations. Historically, our costs of compliance with environmental regulations have not been significant. In the quarter ended October 31, 2000, we recognized a $270,000 expense to remediate the Golden, Colorado facility. The lease and this liability were assumed by the buyers of International Process Research Corporation ("IPRC") effective February 1, 2001. See "Business."

We are controlled by only a few officers and directors and, consequently, purchasers of our shares will have very little ability to elect or control our management.

Even if all outstanding warrants and stock options are exercised and convertible securities are exchanged for common stock, our directors and officers will beneficially own 29.5% of the outstanding shares of common stock as of April 28, 2003, and, accordingly, may have the ability to elect a majority of the directors of Isonics and otherwise control the company. As a result, such persons, acting together, will have the ability to substantially influence all matters submitted to stockholders for approval, including the election and removal of directors and any merger, consolidation or sale of substantially all of our assets, and to control our management and affairs. Such concentration of ownership may have the effect of delaying, deferring or preventing a change in control, impeding a merger, consolidation or takeover or other business combination involving us or discouraging a potential acquirer from making a tender offer or otherwise attempting to obtain control of our business, even if such a transaction would be beneficial to other stockholders.

We risk exposing ourselves to an above-policy limit product liability claim, which could adversely affect our working capital, shareholders' equity and profitability.

The use of our radioisotopes in radiopharmaceuticals and in clinical trials may expose us to potential product liability risks that are inherent in the testing, manufacture, marketing, and sale of

human diagnostic and therapeutic products. We currently have product liability insurance; however, there is a risk that our insurance would not cover completely or would fail to cover a claim, in which case we may not have the financial resources to satisfy such claims, and the payment of claims would require us to use funds that are otherwise needed to conduct our business and make our products. See "Business."

Our common stock is vulnerable to pricing and purchasing actions that are beyond our control and, therefore, persons acquiring our shares or warrants may be unable to resell their shares or warrants at a profit as a result of this volatility.

The trading price of our securities has been subject to wide fluctuations in response to quarter-to-quarter variations in our operating results, our announcements of technological innovations or new products by us or our competitors, and other events and factors. The securities markets themselves have from time to time and recently experienced significant price and volume fluctuations that may be unrelated to the operating performance of particular companies. Announcements of delays in our testing and development schedules, technological innovations or new products by us or our competitors and developments or disputes concerning patents or proprietary rights could have a significant and adverse impact on such market prices. Regulatory developments in the United States and foreign countries, public concern as to the safety of products containing radioactive compounds, economic and other external factors, all affect the market price of our securities. In addition, the realization of any of the risks described in these "Risk Factors" could have a significant and adverse impact on such market prices. See "Market for Common Equity and Related Stockholder Matters."

SEC penny stock regulations may limit the ability to trade our securities on the Nasdaq Small Cap Market.

Although our common stock is currently quoted on the Nasdaq SmallCap Stock Market, our common stock has in the past been subject to additional disclosure requirements for penny stocks mandated by the Securities Enforcement Remedies and Penny Stock Reform Act of 1990. The SEC Regulations generally define a penny stock to be an equity security that is not traded on the Nasdaq Stock Market and has a market price of less than $5.00 per share. We have, at times in the past, been included within the SEC Rule 3a-51 definition of a penny stock. When our common stock is considered to be a "penny stock", trading is covered by Rule 15g-9 promulgated under the Securities Exchange Act of 1934, for non-Nasdaq and non-national securities exchange listed securities.

Under this rule, broker-dealers who recommend such securities to persons other than established customers and accredited investors must make a special written disclosure to, and suitability determination for, the purchaser and receive the purchaser's written agreement to a transaction prior to sale. The regulations on penny stocks limit the ability of broker-dealers to sell our common stock and thus the ability of purchasers of our common stock to sell their securities in the secondary market. To the extent we are able to maintain our listing on the Nasdaq SmallCap Stock Market, we will not be subject to these penny stock rules. Reasons for being unable to maintain our listing on the Nasdaq SmallCap Stock Market include:

•: the inability to maintain a bid price for our common stock of $1.00 for the requisite period of time, and
•: the inability to maintain either the minimum stockholders' equity, market capitalization or net income along with the required number of market makers and shareholders necessary for listing.

Our stock has been trading below the Nasdaq minimum trading price requirement of $1.00 per share since late February 2003. The volatility of our stock price, our current price below $1.00 per share, and our financial condition may in the future, result in our failing to meet Nasdaq's requirements. Because we fail to meet the $1.00 price minimum or if there are other deficiencies in our

listing status that Nasdaq may identify in the future, Nasdaq may commence de-listing procedures. See "Market for Common Equity and Related Stockholder Matters."

Future sales of our common stock may cause our stock price to decline.

Our stock price may decline by future sales of our shares or the perception that such sales may occur. As of April 28, 2003, approximately 5,262,856 shares of common stock held by existing stockholders constitute "restricted shares" as defined in Rule 144 under the Securities Act. The restricted shares may only be sold if they are registered under the Securities Act, or sold under Rule 144, or another exemption from registration under the Securities Act.

Approximately 90% of the restricted shares of our common stock are either eligible for sale pursuant to Rule 144 or have been registered under the Securities Act for resale by the holders. We are unable to estimate the amount, timing, or nature of future sales of outstanding common stock. Sales of substantial amounts of our common stock in the public market may cause the stock's market price to decline. See "Shares Available for Future Sale."

Our Class B and C warrants are only exercisable to the extent there is a current prospectus.

Holders of our Class B warrants and our Class C warrants will only be able to exercise the warrants to the extent that this prospectus is current and the registration statement that includes this prospectus is effective. The SEC rules governing prospectuses and registration statements are complex, and events can occur which may lead the prospectus to become out-of-date. These events may include material changes in our business, assets or financial condition or other material changes which would require that we file a post-effective amendment to update the information contained in this prospectus. Where the progress of business requires that we make continual amendments to the registration statement, it may not be possible for us to maintain the currency of the prospectus. In that case, holders of the Class B warrants and the Class C warrants will not be able to exercise them or, if they do exercise the warrants pursuant to an exemption from registration, the holders may not be able to resell the underlying shares.

Outstanding Series A Convertible Preferred Stock, options and warrants may make it difficult for us to obtain additional capital on reasonable terms.

As of April 28, 2003, we have 963,666 shares of Series A Convertible Preferred Stock outstanding convertible into 1,609,322 shares of our common stock. In addition, we had outstanding options and warrants for the purchase of up to approximately 5,232,840 shares of common stock (at an average exercise price of $1.56 per share), although the exercise price for the options and warrants is in excess of the current market price for our common stock as reported by the public markets. If all of the outstanding options and warrants were to be converted, they would represent approximately 27.6% of our outstanding common shares on a fully-diluted basis. Future investors will likely recognize that the holders of the options, warrants and the convertible preferred stock will only exercise their rights to acquire our common stock when it is to their economic advantage to do so. Therefore, even with lower current market prices for our common stock, the market overhang of such a large number of warrants, options, and convertible preferred stock may adversely impact our ability to obtain additional capital because any new investors will perceive that securities offer a risk of substantial potential future dilution. See "Isonics' Capital Stock."

Provisions in our charter documents could prevent or delay a change in control, which could delay or prevent a takeover.

Our Articles of Incorporation authorize the issuance of "blank check" preferred stock with such designations, rights, and preferences, as may be determined by our Board of Directors. Accordingly, the

Board of Directors may, without shareholder approval, issue shares of preferred stock with dividend, liquidation, conversion, voting, or other rights that could adversely affect the voting power or other rights of the holders of our common stock. Preferred stock could also be issued to discourage, delay, or prevent a change in our control, although we do not currently intend to issue any additional series of our preferred stock. See "Isonics' Capital Stock."

Provisions in our bylaws provide for indemnification of officers and directors to the full extent permitted by California law, which could require us to direct funds away from our business and products.

Our Bylaws provide for indemnification of officers and directors to the full extent permitted by California law, our state of incorporation. We may be required to pay judgments, fines, and expenses incurred by an officer or director, including reasonable attorneys' fees, as a result of actions or proceedings in which such officers and directors are involved by reason of being or having been an officer or director. Funds paid in satisfaction of judgments, fines and expenses may be funds we need for the operation of our business and the development of our products, thereby affecting our ability to attain profitability. This could cause our stock price to drop.

MANAGEMENT'S DISCUSSION AND ANALYSIS
OF FINANCIAL CONDITION OR PLAN OF OPERATION

The statements contained in this report that are not purely historical are forward-looking statements. "Forward looking statements" include statements regarding our expectations, hopes, intentions, or strategies regarding the future. Forward looking statements include: statements regarding future products or products or product development; statements regarding future selling, general and administrative costs and research and development spending, and our product development strategy; statements regarding future capital expenditures and financing requirements; and similar forward looking statements. It is important to note that our actual results could differ materially from those in such forward-looking statements.

General Discussion

As indicated in the risk factors and in the management's discussion and analysis which follows, we have had significant working capital shortages and a lack of profitable operations. Our revenues in the future will depend on our success in developing and selling products in the semiconductor and stable and radioactive isotope markets. Consistent with our historical experience, our quarterly results through January 31, 2003 have been materially affected by the size, timing, and quantity of orders and product shipments during a given quarter. In addition, these quarterly results have been significantly impacted by one-time events including the July 2002 settlement of the Eagle-Picher dispute and sale of Chemotrade Leipzig GmbH ("CTL"). We cannot offer any assurance that these types of events will occur in the future. We have also recently commenced two new operations consisting of our SOI wafer manufacturing operation in Vancouver, Washington, and our recent acquisition of detection technology from IUT. As a result, we have been required to make a significant cash investment in our SOI wafer manufacturing operations and we may be required to make additional investments of cash, personnel, and materials in either of these operations in the future.

Results of Operations—Nine Months ended January 31, 2003 as compared to January 31, 2002

Results of Operations

The following table sets forth, for the periods indicated, statement of operations data expressed as a percentage of revenues. The table and the discussion below should be read in conjunction with the condensed consolidated financial statements and the notes thereto appearing elsewhere in this registration statement.

			Three Months Ended January 31,				Nine Months Ended January 31,
			2003		2002		2003		2002
Revenues			100.0	%	100.0	%	100.0	%	100.0	%
Cost of revenues			75.8		75.7		76.2		75.1

	Gross margin		24.2		24.3		23.8		24.9

Operating expenses:
	Selling, general & Administrative		45.1		44.7		48.3		47.6
	Research & development		2.5		4.3		2.8		5.8

		Total operating expenses	47.6		49.0		51.1		53.4

Operating loss			(23.4	)	(24.7	)	(27.3	)	(28.5	)

Other income (expense), net			(1.3	)	(.4	)	19.9		(.9	)

Loss before income taxes			(24.7	)	(25.1	)	(7.4	)	(29.4	)

Income tax expense			—		—		—		(.1	)

NET LOSS			(24.7	)%	(25.1	)%	(7.4	)%	(29.5	)%

Revenues

Revenues increased from $2,334,000 for the three months ended January 31, 2002 to $2,364,000 for the three months ended January 31, 2003, an increase of $30,000 or 1.3%. The increase is due to $60,000 of semiconductor materials and products sales for the three months ended January 31, 2003 as compared to $4,000 for the three months ended January 31, 2002 partially offset by a decrease in isotope product sales.

Revenues from domestic isotope product sales for the three months ended January 31, 2003 were $1,462,000, an increase of 34.7%, or $377,000, from $1,085,000 for the three months ended January 31, 2002. The increase was primarily the result of additional product sales to our existing customers and an increase in our customer base for the three months ended January 31, 2003.

Revenues from international isotope product sales for the three months ended January 31, 2003 were $842,000, a decrease of 32.4%, or $403,000, from $1,245,000 for the three months ended January 31, 2002. The decrease was primarily the result of the sale of CTL to the 25% shareholder effective May 1, 2002.

Revenues increased from $5,985,000 for the nine months ended January 31, 2002 to $6,861,000 for the nine months ended January 31, 2003, an increase of $876,000 or 14.6%. The increase is due to a significant increase in domestic isotope product sales partially offset by a significant decrease in international isotope product sales. Included in revenues for the nine months ended January 31, 2003 were $118,000 of semiconductor materials and products sales as compared to $4,000 for the nine months ended January 31, 2002.

Revenues from domestic isotope product sales for the nine months ended January 31, 2003 were $4,566,000, an increase of 54.6%, or $1,612,000, from $2,954,000 for the nine months ended January 31, 2002. The increase was primarily the result of additional product sales to our existing customers and an increase in our customer base for the nine months ended January 31, 2003.

Revenues from international isotope product sales for the nine months ended January 31, 2003 were $2,177,000, a decrease of 28.1%, or $850,000, from $3,027,000 for the nine months ended January 31, 2002. The decrease was primarily the result of the sale of CTL to the 25% shareholder effective May 1, 2002.

Included in revenues from international isotope product sales for the three and nine months ended January 31, 2002 was $468,000 and $1,177,000 of revenues from CTL, respectively. Effective May 1, 2002 we sold our 75% interest in CTL to the 25% shareholder for 50,000 Euros. CTL, which primarily resells oxygen-18, was notified in the quarter ended July 31, 2002 that its current distribution agreement (which expired on December 31, 2002) would not be renewed. The loss of this agreement is significant as it accounted for approximately 80% of CTL's revenue and as a result, CTL's ability to generate revenues after December 31, 2002 was extremely uncertain. In conjunction with this disposition, Chemotrade is now free to pursue other opportunities (including selling oxygen-18 throughout the European market) that may have been in conflict with the interests of CTL. We have fully replaced the lost revenue during the nine months ended January 31, 2003 with additional product sales to new and existing customers both domestically and in Europe. We fully anticipate that we will continue this trend during the last quarter of the year ending April 30, 2003 but we can offer no assurances that this will come to fruition.

Notwithstanding the commencement of manufacturing SOI wafers in our own manufacturing facility in November 2002, we do not anticipate significant revenues from sales of silicon-28 based products in fiscal 2003. We are collaborating with academia and industry to evaluate the benefits of isotopically pure silicon-28. We believe that if evaluations demonstrate the commercial feasibility of one or more products, demand could emerge in the high-performance micro-processor segment of the semiconductor market. We can offer no assurance, however that these evaluations will demonstrate the

commercial feasibility of any products, that we will be able to commercialize any such products, or that a market will emerge for any such products.

Gross Margin

Gross margin for the three months ended January 31, 2003 was $571,000, an increase of .7%, or $4,000, from $567,000 for the three months ended January 31, 2002. On a percentage of revenues basis, gross margin decreased .1 percentage point to 24.2%, for the three months ended January 31, 2003, from 24.3%, for the three months ended January 31, 2002. The dollar increase is directly attributable to an increase in higher margin domestic isotope product sales partially offset by a decrease in lower margin international isotope sales primarily due to the disposition of CTL effective May 1, 2002. The percentage of revenues decrease is due to the combination of the zero margin achieved on semiconductor materials and products sales partially offset by an overall increase in higher margin domestic isotope sales and a decrease in lower margin international isotope sales due to the disposition of CTL effective May 1, 2002.

Gross margin for the nine months ended January 31, 2003 was $1,633,000, an increase of 9.7%, or $144,000, from $1,489,000 for the nine months ended January 31, 2002. On a percentage of revenues basis, gross margin decreased 1.1 percentage points to 23.8%, for the nine months ended January 31, 2003, from 24.9%, for the nine months ended January 31, 2002. The dollar increase is directly attributable to an increase in higher margin domestic isotope product sales partially offset by a decrease in lower margin international isotope sales primarily due to the disposition of CTL effective May 1, 2002 and a $38,000 negative margin on semiconductor materials and products sales. The percentage of revenues decrease is due to the combination of the negative margin achieved on semiconductor materials and products sales partially offset by an overall increase in higher margin domestic isotope sales and a decrease in lower margin international isotope sales due to the disposition of CTL effective May 1, 2002.

Included in gross margin for the three and nine months ended January 31, 2002 was $58,000 and $213,000 of gross margin from CTL, respectively. We have replaced the lost gross margin during the nine months ended January 31, 2003 with additional product sales, at a higher gross margin percentage, to both new and existing customers, both domestically and in Europe. We fully anticipate that we will continue this trend during the last quarter of the year ending April 30, 2003 but we can offer no assurances that this will come to fruition.

Selling, General and Administrative Expenses

Selling, general and administrative expenses increased $23,000, to $1,065,000, for the three months ended January 31, 2003, from $1,042,000, for the three months ended January 31, 2002. On a percentage of revenues basis, selling, general and administrative expenses increased .4 percentage points to 45.1%, for the three months ended January 31, 2003, from 44.7%, for the three months ended January 31, 2002. Both the dollar and the percentage increase is primarily attributable to an increase in headcount and facility costs related to the semiconductor materials and products business segment partially offset by a decrease in corporate usage of professional services including public relations and legal services.

Selling, general and administrative expenses increased $474,000, to $3,315,000, for the nine months ended January 31, 2003, from $2,841,000, for the nine months ended January 31, 2002. On a percentage of revenues basis, selling, general and administrative expenses increased .7 percentage points to 48.3%, for the nine months ended January 31, 2003, from 47.6%, for the nine months ended January 31, 2002. The dollar increase is primarily attributable to the expensing of the value of the restricted common stock and common stock warrants issued to vFinance, increased investment banking and consulting costs associated with Park Capital Securities, LLC and an increase in headcount and

facility costs related to the semiconductor materials and products business segment. The percentage increase is attributable to the expensing of the value of the restricted common stock and common stock warrants issued to vFinance, increased investment banking and consulting costs associated with Park Capital Securities and an increase in headcount and facility costs related to the semiconductor materials and products business segment partially offset by an increase in revenues.

We anticipate that we will increase our selling, general and administrative expenses during the last three months of our fiscal year ending April 30, 2003 and into the next fiscal year through anticipated increased marketing efforts for our semiconductor materials and products segment and in an effort to market the isotope-based trace detection technology that we recently acquired from IUT. There can be no assurance that our anticipated increased selling, general and administrative expenses will result in increased revenues from product sales.

Research and Development Expenses

Consistent with our product development strategy, we are seeking to identify and evaluate new stable and radioactive isotope products and potential markets for economic and technical feasibility. We do not anticipate incurring any research and development costs associated with the technology that we recently acquired from IUT through the end of the 2003 fiscal year. We anticipate that we may incur significant research and development costs associated with this technology in the year ending April 30, 2004 only if we are able to obtain additional financing. We will, in addition, continue funding research and development to improve technologies for isotope separation and material processing technologies. Because of the uniqueness of our business, the unique chemicals and processes we deal with and the handling precautions required, these expenses can be significant. We cannot offer any assurance that our current or future lines of business or products resulting from our research and development efforts will be profitable or generate significant revenues.

Research and development expenses decreased $41,000, to $60,000, for the three months ended January 31, 2003, from $101,000, for the three months ended January 31, 2002. On a percentage of revenues basis research and development expenses decreased 1.8 percentage points to 2.5% for the three months ended January 31, 2003, from 4.3%, for the three months ended January 31, 2002. The dollar decrease is primarily related to an increase in the revenue generated by the sale of silicon 28 epitaxial wafers to different companies for testing purposes. This revenue is recorded as an offset to research and development expenses in the accompanying statement of operations. The percentage decrease is also primarily related to the increase in the revenue generated by the sale of silicon 28 epitaxial wafers to different companies for testing purposes and an increase in revenues.

Research and development expenses decreased $159,000, to $189,000, for the nine months ended January 31, 2003, from $348,000, for the nine months ended January 31, 2002. On a percentage of revenues basis research and development expenses decreased 3.0 percentage points to 2.8% for the nine months ended January 31, 2003, from 5.8%, for the nine months ended January 31, 2002. The dollar decrease is primarily related to an increase in the revenue generated by the sale of silicon 28 epitaxial wafers to different companies for testing purposes. This revenue is recorded as an offset to research and development expenses in the accompanying statement of operations. The percentage decrease is also primarily related to the increase in the revenue generated by the sale of silicon 28 epitaxial wafers to different companies for testing purposes and an increase in revenues.

We believe that the development and introduction of new product applications is critical to our future success. We expect that research and development expenses may increase assuming sufficient cash remains available and we are able to procure necessary materials and outside services, but will likely continue to vary as a percentage of revenues because of the timing and amount of future revenues. We operate no facilities of our own for research and development. All research and

development work is performed by outside entities, none of which we control. None of the companies that currently perform research and development work for us do so on an exclusive basis.

Other Income (Expense), net

For the three months ended January 31, 2003 and 2002, other income (expense), net includes interest income and expense and foreign currency gains and losses. Other income (expense), net decreased $20,000, to $(30,000), for the three months ended January 31, 2003, from $(10,000), for the three months ended January 31, 2002.

For the nine months ended January 31, 2003 and 2002, other income (expense), net includes net gains from a legal settlement, amortization of debt offering costs, gains or losses on the sale of lines of businesses or subsidiaries, interest income and expense, and foreign currency gains and losses. Other income (expense), net increased $1,421,000, to $1,362,000, for the nine months ended January 31, 2003, from ($59,000), for the nine months ended January 31, 2002. The increase is primarily attributable to the gain (net of the contingency portion of legal fees) of $2,140,000 related to the settlement of the Eagle-Picher dispute and the approximate $30,000 gain resulting from the disposition of CTL, partially offset by the expensing of $546,000 of previously unamortized discount related to the Series 2002A Convertible Notes to interest expense and $182,000 of previously capitalized debt offering costs as a result of the conversion of the notes to common stock.

Income Taxes

We currently operate at a loss and expect to operate at a loss until the products currently under development begin to generate sufficient revenue. The losses we anticipate incurring during the remaining portion of the current fiscal year are not expected to generate an income tax benefit because of the uncertainty of the realization of the deferred tax asset. As such, we have also provided a valuation allowance against our net deferred tax asset as realization is uncertain.

Net Loss

We recognized a net loss of $584,000 for the three months ended January 31, 2003, as compared to a net loss of $586,000 for the three months ended January 31, 2002. We recognized a net loss of $509,000 for the nine months ended January 31, 2003, as compared to a net loss of $1,763,000 for the nine months ended January 31, 2002. We anticipate that losses will continue until revenues increase from our current operations or until we generate revenues from products introduced as a result of our research and development projects.

Net income in future years will be dependent upon our ability to increase net revenues faster than we increase our selling, general and administrative expenses, research and development expense and other expenses. During the remainder of the year ending April 30, 2003, we anticipate expanding our SOI operations and generating additional revenues. However, because of our continuing research and development efforts on new products (including products based on our newly-acquired homeland security technology), we anticipate that the operations during the year ending April 30, 2003 will result in a loss since we are not likely to increase our revenues from our existing products or generate additional sales from the new products we may develop in a sufficient amount (if at all) to offset our operating expenses.

Liquidity and Capital Resources

Our working capital and liquidity increased significantly during the nine months ended January 31, 2003 due to the resolution of our dispute with Eagle-Picher via the July 24, 2002 settlement agreement whereby we received $2,500,000 ($2,140,000 net of the contingency portion of our legal fees). Working capital increased $657,000, to $1,723,000 at January 31, 2003, from $1,066,000, at April 30, 2002. Our

working capital has decreased since we received the funds from the Eagle-Picher settlement as we have used those funds to finance our negative cash flow.

Our principal source of funding for the nine months ended January 31, 2003 has been from the settlement of the Eagle-Picher dispute. Our principal sources of funding for the nine months ended January 31, 2002 have been from the exercise of common stock warrants and proceeds from the sale of shares under our employee stock purchase program. We provided cash from operating activities of $513,000 during the nine months ended January 31, 2003 and used cash in operating activities of $1,097,000 during the nine months ended January 31, 2002. Cash provided by operating activities during the nine months ended January 31, 2003 was principally the result of the settlement of the Eagle-Picher dispute partially offset by operating losses. Cash used in operating activities for the nine months ended January 31, 2002 was principally the result of a net loss of $1,763,000.

Our investing activities used cash of $369,000 and $18,000 for the nine months ended January 31, 2003 and 2002, respectively. Cash used in investing activities for the nine months ended January 31, 2003 and January 31, 2002, resulted from purchases of property and equipment.

Financing activities used cash of $40,000 for the nine months ended January 31, 2003 and provided cash of $523,000 for the nine months ended January 31, 2002. Cash used in financing activities for the nine months ended January 31, 2003 resulted primarily from payments on borrowings of $46,000. Cash provided by financing activities for the nine months ended January 31, 2002 resulted primarily from the exercise of common stock warrants for $473,000, proceeds of $7,000 from the sale of shares under our employee stock purchase program and $43,000 from the net issuance and repayments of notes payable.

In October 2002 we entered into an agreement with Fidelity whereby Fidelity agreed to provide up to $1,000,000 in equipment financing. Under the terms of the agreement, Fidelity will acquire equipment on our behalf and lease it to us over a term of 36 months at a current blended interest rate of approximately 7.5%. Each draw down on the lease will contain a $1 bargain purchase option, payable at the end of the lease at which time title to the equipment will transfer to us, and as a result they will be accounted for as capital leases. Principal amounts outstanding under this facility at January 31, 2003 were $145,000.

At January 31, 2003, we had $829,000 of cash and cash equivalents, an increase of $104,000, compared to $725,000, at April 30, 2002.

In November 2002, we entered into an agreement with Park Capital Securities, LLC whereby we issued a common stock warrant to purchase 300,000 shares of common stock at $1.00 per share, for investment banking and consulting services. The common stock warrant vested immediately and expires in November 2005. The agreement terminates on December 31, 2003.

Under the terms of the Series A Convertible Preferred Stock private placement, the related shareholders had anti-dilution rights if we issued or sold common stock after July 29, 1999 for a per share consideration less than the current exercise price of the related warrants. The 3,085,622 common stock warrants associated with this private placement expired unexercised on July 29, 2002.

proper calculation of the conversion ratio, the conversion price is currently $.90 per share and, as a result, the Series A Convertible Preferred Stock is now convertible at 1.67 shares of common stock for each share of Series A Convertible Preferred Stock outstanding.

In general (and even though our working capital increased during the nine-months ended January 31, 2003 due, primarily due to the Eagle-Picher settlement), we expect that our working capital will decrease over time as we continue to use our capital and cash flows from revenues for operations, research and development and investing activities (including the expansion of our SOI operations). We do not expect working capital to increase until we are able to increase our revenues to exceed our cash out-flow (assuming we are able to increase our revenues) or complete a financing arrangement. We cannot offer any assurance that we will be able to do so in the near term. With our anticipated revenues from operations during the period and projecting our cash flow on the basis of our historical expenditures, we have sufficient cash available to fund our short-term working capital requirements for the balance of the current fiscal year and through July, 2003.

We are currently working with several different sources, including both strategic and financial investors, in order to raise sufficient capital to finance both our continuing operations and our proposed homeland security business through the use of the isotope-based trace detection technology we acquired from IUT. Although there is no assurance that funding will be available, we believe that our current business plan, if successfully funded, will significantly improve our operating results and cash flow in the future.

Results of Operations—fiscal year 2002 as compared to fiscal year 2001

The following table sets forth operations data expressed as a percentage of revenues. The table and the discussion below should be read in conjunction with the audited financial statements and the notes thereto appearing elsewhere in this registration statement.

			Year Ended April 30,
			2002		2001
Revenues			100.0	%	100.0	%
Cost of revenues			75.8		77.3

	Gross margin		24.2		22.7
Operating expenses:
	Selling, general and administrative		54.7		59.6
	Research and development		5.2		14.6
	Goodwill impairment		12.6		—

		Total operating expenses	72.5		74.2

Operating loss			(48.3	)	(51.5	)
Other income (expense), net			(.3	)	(6.3	)

Loss before income tax expense			(48.6	)	(57.8	)
Income tax expense			—		—

Net loss			(48.6	)%	(57.8	)%

Revenues

Revenues increased from $7,789,000 for the year ended April 30, 2001 to $8,155,000 for the year ended April 30, 2002, an increase of $366,000 or 4.7%. The increase is due to a significant increase in domestic isotope product sales partially offset by a significant decrease in international isotope product sales. Included in revenues for the year ended April 30, 2002 were approximately $15,000 of semiconductor materials and products sales as compared to zero for the year ended April 30, 2001.

Revenues from domestic isotope product sales for the year ended April 30, 2002 were $4,224,000, an increase of 62.3%, or $1,622,000, from $2,602,000 for the year ended April 30, 2001. The increase was primarily the result of additional product sales to our existing customers and an increase in our customer base for the year ended April 30, 2002.

Revenues from international isotope product sales for the year ended April 30, 2002 were $3,916,000, a decrease of 24.5%, or $1,271,000, from $5,187,000 for the year ended April 30, 2001. The decrease was primarily the result of the acquisition of a major customer by one of our competitors during the second quarter of the year ended April 30, 2001 and several one-time transactions with governmental agencies during the year ended April 30, 2001.

Included in Revenues from international isotope product sales for the year ended April 30, 2002 was approximately $1,575,000 of revenues from CTL. Effective May 1, 2002 we sold our 75% interest in CTL to the 25% shareholder for 50,000 Euros. CTL, which primarily resells oxygen-18, was recently notified that its current distribution agreement (which expires on December 31, 2002) would not be renewed. The loss of this agreement is significant as it accounts for approximately 80% of CTL's revenue and as a result, CTL's ability to generate revenues after December 31, 2002 is extremely uncertain. In conjunction with this disposition, Chemotrade is now free to pursue other opportunities (including selling oxygen-18 throughout the European market) that may have been in conflict with the interests of CTL. While we fully anticipate replacing the lost revenue during the year ended April 2003 with additional product sales to new and existing customers both domestically and in Europe, we can offer no assurances that this will come to fruition (see "Recent Business Dispositions").

Although we commenced our SOI business on a limited basis during the year ended April 30, 2002, there are still several additional items that need to be resolved, including the refining of our processes and procedures and obtaining certification from our future customers before we will be able to operate our SOI business on a full scale basis. We did commence manufacturing SOI wafers in our own manufacturing facilities during the year ending April 30, 2003 as described elsewhere herein and we expect to be able to continue to do so.

We do not anticipate significant revenues from sales of silicon-28 based products in fiscal 2003. We are collaborating with academia and industry to evaluate the benefits of isotopically-pure silicon-28. We believe that if evaluations demonstrate the commercial feasibility of one or more products, demand could emerge in the high-performance micro-processor segment of the semiconductor market. We can offer no assurance, however, that these evaluations will demonstrate the commercial feasibility of any products, that we will be able to commercialize any such products, or that a market will emerge for any such products.

Gross Margin

Gross margin for the year ended April 30, 2002 was $1,973,000, an increase of 11.5%, or $203,000, from $1,770,000 for the year ended April 30, 2001. On a percentage of revenues basis, gross margin increased 1.5 percentage points to 24.2%, for the year ended April 30, 2002, from 22.7%, for the year ended April 30, 2001. The dollar increase is directly attributable to an increase in higher margin domestic isotope product sales partially offset by a decrease in international lower margin isotope sales.

The percentage of revenues increase is due to the combination of an increase in higher margin domestic isotope sales and a decrease in lower margin international isotope sales.

Included in gross margin for the year ended April 30, 2002 was approximately $326,000 of gross margin from CTL. While we fully anticipate replacing the lost gross margin from the sale of CTL during the year ended April 30, 2003 with additional product sales, at a higher gross margin percentage, to both new and existing customers, both domestically and in Europe, we can offer no assurances that this will come to fruition (see "Recent Business Dispositions").

Selling, General and Administrative Expenses

Selling, general and administrative expenses decreased $182,000, to $4,463,000 for the year ended April 30, 2002, from $4,645,000 for the year ended April 30, 2001. On a percentage of revenues basis, selling, general and administrative expenses decreased to 54.7%, for the year ended April 30, 2002, from 59.6%, for the year ended April 30, 2001. The dollar decrease is primarily attributable to reduced corporate usage of professional services including legal, business development and accounting services and reduced salaries, headcount and other related expenses due to the sale of our subsidiary IPRC, effective February 1, 2001 partially offset by the increased usage of consulting services related to the issuance of common stock to IRSI and the fair market value of common stock warrants issued for services. Included in selling, general and administrative expenses for the year ended April 30, 2001 was a $270,000 expense to remediate the Golden, Colorado facility that was leased by Isonics. The lease and related remediation liability were assumed by the buyer of IPRC effective February 1, 2001. The percentage decrease is also attributable to reduced corporate usage of professional services including legal, business development and accounting services and reduced salaries, headcount and other related expenses due to the sale of our subsidiary IPRC, and an increase in revenues partially offset by the increased usage of consulting services related to the issuance of common stock to IRSI and the fair market value of common stock warrants issued for services.

Goodwill Impairment

The dynamics of Chemotrade's business changed throughout the year ended April 30, 2002, including the realization in the fourth quarter that we would be unable to renew a major sales contract that expired December 31, 2002, the retirement of two key members of management and an evolving change in our current and future product mix. These conditions led to operating results and forecasted future results that were substantially less than had been anticipated at the time of the acquisition of Chemotrade. We revised our projections and determined that the projected results would not fully support the future amortization of the goodwill balance. In accordance with our policy, we assessed the recoverability of goodwill using a discounted cash flow projection over the next six years, at a risk-adjusted rate of 12%. The six-year time horizon represents our best estimate of Chemotrade's future cash flows given current planned operating conditions. Based on this projection, the cumulative cash flow was insufficient to fully recover the goodwill and fixed asset balance. As a result, we determined that assets with a carrying value of $2,881,000 were impaired, resulting in a write-down of goodwill of $1,025,000 to its fair value.

Research and Development Expenses

Consistent with our product development strategy, we are seeking to identify and evaluate new stable and radioactive isotope products and potential markets for economic and technical feasibility. We will, in addition, continue funding research and development to improve technologies for isotope separation and material processing technologies. Because of the uniqueness of our business, the unique chemicals and processes we deal with and the handling precautions required, these expenses are significant. We cannot offer any assurance that our current or future lines of business or products resulting from our research and development efforts will be profitable or generate significant revenues.

Research and development expenses decreased $711,000, to $423,000, for the year ended April 30, 2002, from $1,134,000, for the year ended April 30, 2001. On a percentage of revenues basis, research and development expenses decreased to 5.2% for the year ended April 30, 2002, from 14.6%, for the year ended April 30, 2001. The dollar decrease is primarily related to decreased research and development expenses associated with the zinc recovery and recycling project. These expenses were incurred by IPRC, which was sold effective February 1, 2001. The percentage decrease is also attributable to the sale of our subsidiary and the increase in revenues.

Other income (expense), net

Other income (expense), net includes interest income and expense, gains or losses on the sale of lines of businesses or subsidiaries, impairment write-downs related to contract research and development assets held by IPRC and foreign currency gains and losses. Other income (expense), net decreased $467,000, to ($22,000), for the year ended April 30, 2002, from ($489,000), for the year ended April 30, 2001. The decrease is primarily attributable to charges totaling $208,000 related to the contingent gain previously recognized on the sale of the depleted zinc business to Eagle-Picher, charges of $354,000 related to the write down of contract research and development assets of IPRC and foreign currency losses of $66,000 related to the translation of the German financial statements of Chemotrade to US dollars partially offset by recognizing a $59,000 gain on the sale of IPRC during the year ended April 30, 2001. During the year ended April 30, 2002 we realized a gain of $6,000 related to the translation of the German financial statements of Chemotrade to US dollars.

Income Taxes

We currently operate at a loss and expect to operate at a loss until our SOI business and the products currently under development begin to generate sufficient revenue. The losses incurred in the current year are not expected to generate an income tax benefit because of the uncertainty of the realization of the deferred tax asset. As a result, we have provided a valuation allowance against the deferred tax assets. In October 2001, we received approximately $362,000 resulting from a carry-back claim associated with the prior year taxable loss.

Net Loss

We recognized a net loss of $3,960,000 for the year ended April 30, 2002, as compared to a net loss of $4,498,000 for the year ended April 30, 2001. Losses, as incurred during the year ended April 30, 2002, of this magnitude will likely continue until revenues increase from our current operations or until we generate revenues from products introduced as a result of our research and development projects.

loss unless we are able to increase our revenues from our existing products or generate additional sales from the new products we may develop.

Liquidity and Capital Resources—April 30, 2002 as compared to April 30, 2001

Our working capital and liquidity eroded significantly during the year ended April 30, 2002. Working capital decreased $543,000, to $1,066,000, at April 30, 2002, from $1,609,000, at April 30, 2001. Of that, approximately $773,000 of our working capital is in our German Subsidiary and is not available to pay our United States based creditors.

Subsequent to year-end, our working capital increased significantly due to the resolution of our dispute with Eagle-Picher via the July 24, 2002 settlement agreement. As a result of the settlement, we received $2,500,000 ($2,140,000 net of the contingency portion of our legal fees) from Eagle-Picher although neither party acknowledged fault or liability in connection with the dispute (see "Legal Proceedings").

Our principal sources of funding have been from the issuance of our Series 2002A Convertible Notes, the exercise of common stock warrants, the exercise of stock options, sales of common stock and proceeds from the sale of shares under our employee stock purchase program. We used cash in operating activities of $1,858,000 and $3,147,000 for the years ended April 30, 2002 and 2001, respectively.

Our investing activities used cash of $17,000 and $43,000 for the years ended April 30, 2002 and 2001, respectively. Cash used in investing activities during the years ended April 30, 2002 and 2001 resulted primarily from purchases of property and equipment.

Financing activities generated cash of $1,510,000 and $895,000 for the years ended April 30, 2002 and 2001, respectively. Cash provided by financing activities for the year ended April 30, 2002 resulted from the issuance of our Series 2002A Convertible Notes for $1,000,000, the exercise of common stock warrants for $473,000, proceeds of $7,000 from the sale of shares under our employee stock purchase program and $30,000 from the net issuance and repayments of notes payable. Cash provided by financing activities for the year ended April 30, 2001 resulted from the December 13, 2000 issuance of units, comprised of one share of common stock bundled with two Class B Warrants for cash of $675,000 with the remaining amount resulting primarily from the exercise of stock options and proceeds from the sale of shares under our employee stock purchase program.

At April 30, 2002, we had $725,000 of cash and cash equivalents, a decrease of $365,000, compared to $1,090,000 at April 30, 2001. The decrease is primarily the result of net losses incurred during the year ended April 30, 2002 as well as other cash expenditures we incurred which, in the aggregate, exceeded cash receipts.

On March 20, 2002, we completed a financing arrangement whereby we issued $1,000,000 in Series 2002A Convertible Notes along with 200,000 detachable common stock warrants. The notes are convertible at a ratio of one common share for each dollar of note outstanding, bear interest at 4% per annum, and are due March 1, 2003. The common stock warrants are exercisable at $1.25 per warrant and expire on March 20, 2005. The common shares underlying the convertible notes were effectively registered on June 9, 2002. Subsequent to year-end, all of the convertible notes were converted to 1,000,000 shares of common stock.

The terms of the private placement completed on December 13, 2000 required that we register the common stock and the common stock underlying the Class B common stock warrants by June 14, 2001. As we were unable to complete the effective registration of such shares by June 14, 2001, on July 26, 2001 we rectified the situation by issuing an additional 112,504 shares of common stock and an additional 675,000 Class B common stock warrants to the investors of the private placement.

On April 30, 2001, we completed the exchange offer described herein whereby the holders of Class A common stock warrants could exchange each Class A common stock warrant for a Class B common stock warrant. In order to participate in the exchange offer, each holder of the Class A common stock warrants was required to submit their election by April 30, 2001. As a result of this exchange offer, 632,610 of the 810,000 Class A common stock warrants were exchanged for Class B common stock warrants. The remaining 177,390 Class A common stock warrants that were not exchanged expired September 21, 2001.

Under the terms of the Series A Convertible Preferred Stock private placement, the related shareholders have anti-dilution rights if we issue or sell common stock after July 29, 1999 for a per share consideration less than the current exercise price of the related warrants. As a result of various transactions during the year ended April 30, 2002 including the issuance of the Series 2002A 4% Convertible Notes, the issuance of restricted common stock to SEI, IRSI and company employees, the issuance of common stock warrants to SQI, the exchange offer of Class A common stock warrants and the issuance of common stock options and warrants to employees, we issued an additional 642,654 common stock warrants and reduced the exercise price to $2.79 on all related common stock warrants in order to satisfy the anti-dilution provisions. As of April 30, 2002, there are 3,085,622 common stock warrants outstanding related to the Series A Convertible Preferred Stock private placement. These warrants expired on July 29, 2002.

In addition to anti-dilution rights, there are provisions associated with the Series A Convertible Preferred Stock that if triggered, would reduce the current conversion price and effectively allow the preferred shares to convert to common stock at a ratio greater than a one for one basis. As a result of the issuance of the Series 2002A 4% Convertible Notes at $1.00 per share, the Series A Convertible Preferred Stock as of April 30, 2002 was convertible at 1.50 shares of common stock for each share of Series A Convertible Preferred stock outstanding.

The purchase agreement relating to the acquisition of Chemotrade required that the former shareholders of Chemotrade receive additional consideration in the event that defined levels of pretax earnings were achieved for the year ended April 30, 2001. As a result of the performance of Chemotrade during the year ended April 30, 2001, we paid the former shareholders of Chemotrade contingent consideration of approximately $114,000 during the year ended April 30, 2002. There were no other events of contingent consideration under the terms of the purchase agreement.

In general, we expect that our working capital will continue to decrease over time as we continue to use our capital for operations, research and development, and investing activities. We do not expect working capital to increase until we are able to increase our revenues to exceed our cash out-flow (assuming we are able even to increase our revenues) or complete a financing arrangement. We cannot offer any assurance that we will be able to do so in the near term. We have sufficient cash available to fund our working capital requirements into the year ended April 30, 2004.

Critical Accounting Policies

In accordance with recent Securities and Exchange Commission guidance, those material accounting policies that we believe are the most critical to an investor's understanding of our financial results and condition and require complex management judgment have been expanded and are discussed below.

Goodwill and Intangible Assets

Effective May 1, 2002 we adopted SFAS No. 142 Goodwill and Other Intangible Assets. SFAS No. 142 addresses the methods used to amortize intangible assets and to assess impairment of those assets, including goodwill resulting from business combinations accounted for under the purchase method. Although we adopted SFAS No. 142 effective May 1, 2002, goodwill and intangible assets

other than goodwill acquired after June 30, 2001 have been amortized or not amortized in accordance with SFAS 142. We acquired intangible assets from SEI and IUT subsequent to June 30, 2001, and have accounted for those assets in accordance with the requirements of SFAS No. 142. Included in our assets at January 31, 2003, is goodwill related to the acquisition of Chemotrade in 1998 with a net carrying value of $1,807,000. Effective with the adoption of SFAS No. 142, we no longer amortize this goodwill, decreasing our amortization expense by approximately $110,000 per year.

In accordance with SFAS No. 142, we have completed step one of the impairment test on our Life Sciences reporting unit, which has recorded goodwill. In completing our analysis of the Life Sciences reporting unit, we used the DCF Method in which the reporting unit was valued by discounting the projected cash flows to its present value based upon a risk adjusted discount rate. As a result of the testing, we determined that there is no impairment of goodwill. We are required to assess goodwill and other intangibles for impairment at least annually hereafter.

In performing the calculation under SFAS No. 142, we made several assumptions, including the use of the DCF Method, the number of years used in the projection, the discount rate and growth assumptions. Had we elected to use different variables, the outcome of the calculation could have been different.

We utilized the DCF Method in order to calculate the fair value of our Life Sciences reporting unit. We had the option to utilize the market capitalization method but given the complexity of our business, we determined that we couldn't reasonably bifurcate the market value of the Life Sciences reporting unit from our other operations based upon our market value as a whole. In utilizing the DCF method, we based our calculation over a conservative six-year life with no projected growth over the final four years. The final four years were kept constant in order to ensure that we did not overestimate the potential of the reporting unit. The six-year life was utilized as a result of the fact that the Life Sciences reporting unit has been selling isotopes for over fifteen years and that demand for isotopes is projected to increase over the next ten years. Given the history of the reporting unit and the projected future of the industry, we determined that it was reasonable to utilize a six-year life. Had we utilized a life of less than six years, the calculation may have suggested that impairment was present. In addition, we discounted the projected cash flows at a rate of 12%. The 12% was deemed reasonable given the current low market interest rate and the extremely low risk of the Life Sciences business offset by the higher cost of capital for a small company and the related difficulties we have had in raising necessary capital over the years. Had we utilized a discount rate that was substantially larger than 12%, the calculation may have suggested that impairment was present.

Our intangible assets result from the perpetual, exclusive technology license agreement with SEI that we entered into on September 14, 2001 and the isotope-based trace detection technology we acquired from IUT in December 2002. As the intangible assets were acquired after June 30, 2001, we adhere to the guidance provided by SFAS No. 142 Goodwill and Other Intangible Assets. We initially determined that the intangible assets acquired from SEI had an indefinite useful life as they were not bound by any legal time periods or otherwise limited due to competing technologies and, therefore in accordance with SFAS No. 142 they were not amortized but rather tested annually for impairment. During the nine months ended January 31, 2003, upon further evaluation of the uses and applications of the acquired technology and the advancement of the development of our SOI business plan, we determined that the intangible assets no longer had an indefinite life and as a result, the assets are now being amortized over their estimated useful life of ten years. The isotope-based trace detection technology is also being amortized over its estimated useful life of ten years. We will continue to evaluate each reporting period whether events and circumstances continue to support our assessment of a ten-year life for these intangible assets. Additionally, if indicators of impairment do arise in the future, the intangible assets will be tested for impairment and may result in an impairment charge in the future.

Valuation of Equity Transactions

We value transactions associated with common or preferred stock that is convertible into common stock based on the market value of the underlying common stock on the date of the signing of the agreement. We value transactions associated with common stock warrants at the appropriate measurement date utilizing the Black-Scholes pricing model, with assumptions as to volatility (150%), risk-free interest rate (4.0%) and estimated life of the warrants based on historical information. If the assumptions used, as they relate to volatility, risk-free interest rate and estimated life of the warrants, were materially different, the overall valuation of these transactions could change significantly.

PROCEDURE FOR EXERCISE OF THE WARRANTS AND TAX ASPECTS

Procedure to Exercise Warrants. A portion of the Class B Warrants included in this prospectus have been issued and outstanding since they were issued upon completion of the exchange offer on April 30, 2001. This Prospectus also includes an additional 1,350,000 Class B warrants that were issued in a private placement in December 2000 and July 2001.

Each registered holder of a Class B Warrant or a Class C Warrant should have possession of a certificate that represents that warrant. Persons who hold their Class B Warrants or their Class C Warrants in a brokerage account or otherwise in a "street name" account may ask their brokers to deliver a certificate for their Class B Warrant or their Class C Warrant to them.

Registered Holders. If you are a registered holder, and if you have possession of the certificate for your Class B Warrant or Class C Warrant, in order to exercise a warrant, you must:

•: complete the subscription form which is included as a part of the warrant certificate;
•: sign the subscription form and have your signature medallion guaranteed by a broker-dealer member of the STAMP program;
•: deliver the original warrant certificate with the completed, signed, and medallion guaranteed subscription form to Continental Stock Transfer & Trust Co., Inc., 17 Battery Place, 8^th Floor, New York, NY 10004, Attn: Compliance Department; and
•: include your payment for the exercise price ($1.50 times the number of warrants being exercised for the Class B Warrants; and $2.50 times the number of warrants being exercised for the Class C Warrants). You must pay for the exercise by certified or bank cashiers' check payable in United States funds to the order of Isonics Corporation. If you prefer to wire transfer funds, you should contact Continental Stock Transfer & Trust Company by telephone and request wiring instructions. Continental Stock Transfer can be reached by telephone at (212) 509-4000.

We recommend that you do not send your warrant certificate or funds through the regular U.S. Mail. We recommend that you use registered or certified U.S. Mail, or a courier service that will provide you a receipt indicating that Continental Stock Transfer received your warrant certificate and payment. Neither we, nor Continental Stock Transfer, are responsible for your warrant certificate or your payment until Continental Stock Transfer actually receives delivery. Do not send warrant certificates or payment directly to Isonics Corporation.

Warrants held in a Brokerage Account or Otherwise in Street-Name. If you hold your Class B Warrants or Class C Warrants in a brokerage account or otherwise in a "street name" account, you must follow the procedures required by your broker, dealer, or other street-name holder.

Lost Warrant Certificates. If you have lost your warrant certificate, you must contact Continental Stock Transfer & Trust Co., Inc., and follow the procedures established by Continental Stock Transfer for your lost warrant certificate.

Tax Aspects. No gain or loss will be recognized by a holder of either the Class B Warrant or the Class C Warrant held for investment on the holder's purchase of common stock for cash upon exercise of the warrant. The adjusted tax basis of the common stock so acquired will be equal to the tax basis of the warrant plus the exercise price. The holding period of the common stock acquired upon the exercise of the Class B Warrant, or the Class C Warrant, will begin on the date the warrant is exercised and the common stock is purchased.

No Underwriter, Etc. No underwriter, dealer, or finder was involved in the exchange offer (which was completed on April 30, 2001), the December 2000 private placement, or in the secondary market for these Warrants. Consequently, no underwriter, dealer, or finder, or other person has the right to receive any reimbursement of expenses, any right to appoint a representative to our board of directors, or the right to receive indemnification from us. To our knowledge, no person is engaging in passive market making or stabilizing or other transactions.

SECURITIES OFFERED, THE SELLING HOLDERS AND THE PLAN OF DISTRIBUTION

This Prospectus includes securities that are underlying outstanding Class B Warrants and Class C Warrants. Certain of these securities were included in a prior registration statement declared effective under the Securities Act of 1933 on April 9, 2003, and which are incorporated into this prospectus pursuant to Rule 429. This Prospectus also includes securities that are underlying Class B Warrants held by the Selling Holders, in addition to the securities being offered by the Selling Holders. The securities being offered by Isonics and by the Selling Holders are described in the next two sections:

Isonics. This prospectus includes the following securities that we are offering:

1,780,110 Class C Warrants underlying		3,762,720 shares of Common stock underlying
430,110 outstanding Class B Warrants that are publicly-held, and 1,350,000 outstanding Class B Warrants that are restricted that are held by the Selling Holders and that are included in this prospectus for resale		430,110 outstanding Class B Warrants that are publicly held, 202,500 outstanding Class C Warrants that are publicly held, 1,350,000 outstanding Class B Warrants that are included in this prospectus for resale, and 1,780,110 Class C Warrants issuable upon exercise of outstanding Class B Warrants

We are not offering any securities except securities that are underlying outstanding Class B Warrants and Class C Warrants that are either outstanding or are issuable upon exercise of Class B Warrants.

The Selling Holders. This Prospectus includes the securities that are being offered by the Selling Holders that were sold to them in a December 2000 private placement made to accredited investors only, and that were issued to them in July 2001 as a result of negotiations between Isonics and the Selling Holders completed in July 2001 when we were not able to gain effectiveness of a registration statement originally filed for the Selling Holders in March 2001:

•: 182,947 shares of common stock which are already outstanding; and
•: 1,350,000 Class B warrants which are already outstanding.

We have set forth in the following table information relative to the Selling Holders as of March 31, 2003. We calculated beneficial ownership based on SEC requirements, and the information we included regarding beneficial ownership is not necessarily indicative of beneficial ownership for any other purpose. Unless otherwise indicated below, each person identified in the table has sole voting and investment power with respect to all shares he, she, or it beneficially owns, subject to applicable

community property laws. We have based the percentage calculated for each Selling Holder upon the sum of the "common stock" and "common stock issuable upon exercise of warrants" columns.

None of the Selling Holders had any material relationship with Isonics during the past three years. Furthermore, none of the Selling Holders owns any Series A convertible preferred stock or options or warrants to purchase our common stock except the Class B warrants purchased in the December 2000 private placement or as issued in July 2001. Greenwood Partners, L.P. has acted as a market maker in our common stock from time to time and, therefore, as described in the table below, owns additional Class B and Class C warrants.

We do not know when or in what amounts the Selling Holders may offer the shares described in this prospectus for sale. The Selling Holders may decide not to sell all or any of the shares that this prospectus covers. Because the Selling Holders may offer all or some of the shares pursuant to this offering, and because there are currently no agreements, arrangements or understandings with respect to the sale of any of the shares that the Selling Holders will hold after completion of the offering, we cannot estimate the number of the shares that the Selling Holders will hold after completion of the offering. However, for purposes of this table, we have assumed that, after completion of the offering, the Selling Holders will hold none of the securities that this prospectus covers.

							(a) Common Stock to be Beneficially Owned After Offering and (b) Percentage, Assuming All Shares Offered are Sold
					(a) Common Stock and (b) Class B warrants (or shares underlying Class B warrants, in the alternative) being offered by the Selling Holders.(1)
				Other Shares, Options and Warrants
	(a) Common Stock, (b) Class B Warrants and (c) Class C Warrants Beneficially Owned Prior to This Offering
Name of Selling Holder(s)
Name of Selling Holder(s)	(a)	(b)	(c)		(a)	(b)	(a)	(b)
Penelope A. Collins	16,667	50,000	0	0	16,667	50,000	0	0	%
Generation Capital Associates(5)	6,067	200,000	0	0	6,067	200,000	0	0	%
Greenwood Partners, L.P.(2)	6,877	593,490	202,500	0	6,877	593,490	0	0	%
Edward S. Gutman(3)	33,334	100,000	0	0	33,334	100,000	0	0	%
Gutman Family Foundation(3)	33,334	100,000	0	0	33,334	100,000	0	0	%
The HRG Trust, Edward S. Gutman, Trustee(3)	33,334	100,000	0	0	33,334	100,000	0	0	%
Harvey Silverman	33,334	100,000	0	0	33,334	100,000	0	0	%
Wolcott Capital Corp.(4)	0	75,700	0	0	0	100,000	0	0	%
Alan R. Silberman	20,000	60,000	0	0	20,000	60,000	0	0	%

(1): The Selling Holders are offering all of the common stock and Class B warrants (or the shares underlying the Class B warrants, in the alternative) they acquired in the December 2000 private placement, plus the additional shares and Class B warrants they received in the July 2001 readjustment. The total beneficial ownership does not include Class C warrants that will be issued upon the exercise of the Class B warrants. The Class C Warrants are not being offered by the Selling Holders pursuant to this Prospectus.
(2): Greenwood Partners, L.P. is a privately-held company whose controlling person is GMG & Associates, Inc., its general partner, which is controlled by Gregg M. Greenberg. Greenwood Partners, L.P. is a broker-dealer registered under the Securities Exchange Act of 1934, as amended, and from time-to-time makes a market in our common stock in the Nasdaq SmallCap Market. As of May 13, 2003, Greenwood Partners, L.P. had a short position of 92,700 and a long position of 6,877 shares of Isonics common stock and long positions of 593,490 Class B warrants and 202,500 Class C warrants. A portion (53,490) of the Class B and all of the Class C warrants are included in a prior registration statement and are incorporated herein under SEC rule 429. The short position is not included in the foregoing table.
(3): Mr. Gutman controls both the Gutman Family Foundation and the HRG Trust. Mr. Gutman is a minority limited partner of Greenwood Partners, L.P., but does not in any manner participate in the business of Greenwood Partners, L.P. Mr. Gutman has represented to Isonics that at the time he purchased the shares

and the class B warrants from Isonics he had, and at present he continues to have, no agreement or understanding, directly or indirectly, with any person to distribute the securities.

(4): Wolcott Capital Corp. is a privately-held company whose controlling person is Nicholas Ponzio, President.
(5): Generation Capital Associates is a limited partnership of which Frank E. Hart is the general partner.

Plan of Distribution. The Selling Holders have advised us that they may, from time to time, offer and sell the shares and Class B warrants included in this Prospectus. Alternatively, the Selling Holders may exercise the Class B warrants pursuant to an exemption from registration if one is available at the time, and offer and sell the underlying shares and Class C warrants under this prospectus. The term "Selling Holders" includes pledgees, donees, transferees or other successors in interest selling shares that they acquired after the date of this prospectus from the Selling Holders as a pledge, gift or other non-sale related transfer. To the extent required, we may amend and supplement this prospectus from time to time to describe a specific plan of distribution.

Each Selling Holder has advised us that he, she or it will act independently in making decisions with respect to the timing, manner, and size of each sale. Each Selling Holder has advised us that they may make these sales at prices and under terms then prevailing or at prices related to the then current market price. The Selling Holders have advised us that they may also make sales in negotiated transactions, including pursuant to one or more of the following methods:

•: purchases by a broker-dealer as principal and resale by such broker-dealer for its own account pursuant to this prospectus;
•: ordinary brokerage transactions and transactions in which the broker solicits purchasers;
•: block trades in which the broker-dealer will attempt to sell the shares as agent but may position and resell a portion of the block as principal to facilitate the transaction;
•: an over-the-counter distribution in accordance with the rules of the Nasdaq SmallCap Market; and
•: in privately negotiated transactions.

In connection with distributions of the shares or otherwise, the Selling Holders have advised us that each may:

•: enter into hedging transactions with broker-dealers or other financial institutions, which may in turn engage in short sales of the shares in the course of hedging the positions they assume;
•: sell the shares short and redeliver the shares to close out such short positions;
•: enter into option or other transactions with broker-dealers or other financial institutions which require the delivery to them of shares that this prospectus offers, which they may in turn resell; and
•: pledge shares to a broker-dealer or other financial institution, which, upon a default, they may in turn resell.

In addition, the Selling Holders may sell any shares that qualify for sale pursuant to Rule 144, rather than pursuant to this prospectus.

In effecting sales, broker-dealers or agents that the Selling Holders engage may arrange for other broker-dealers to participate. Broker-dealers or agents may receive commissions, discounts or concessions from the Selling Holders, in amounts that the parties may negotiate immediately prior to the sale.

In offering shares that this prospectus covers, the Selling Holders, and any broker-dealers and any other participating broker-dealers who execute sales for the Selling Holders, may qualify as

"underwriters" within the meaning of the Securities Act in connection with these sales. Any profits that the Selling Holders realize, and the compensation that they pay to any broker-dealer, may qualify as underwriting discounts and commissions. One selling Holder, Greenwood Partners, L.P. is a broker-dealer that acquired the securities included in this registration statement for investment purposes, and not for the purpose of causing or facilitating a distribution. However, in the view of the staff of the SEC, a broker-dealer offering securities acquired from an issuer should be considered to be an underwriter, and while the SEC staff's view is not dispositive, Greenwood Partners, L.P. may be liable as an underwriter for securities sold by it pursuant to this registration statement.

In order to comply with the securities laws of some states, the Selling Holders must sell the shares in those states only through registered or licensed brokers or dealers. In addition, in some states the Selling Holders must sell the shares only if we have registered or qualified those shares for sale in the applicable state or an exemption from the registration or qualification requirement is available and the Selling Holder complies with the exemption.

We have advised the Selling Holders that the anti-manipulation rules of Regulation M under the Exchange Act may apply to sales of shares in the market and to the activities of the Selling Holders and their affiliates. In addition, we will make copies of this prospectus available to the Selling Holders for the purpose of satisfying the prospectus delivery requirements of the Securities Act. The Selling Holders may indemnify any broker-dealer that participates in transactions involving the sale of the shares against liabilities, including liabilities arising under the Securities Act.

At the time a Selling Holder makes a particular offer of shares we will, if required, distribute a prospectus supplement that will set forth:

•: the number of shares that the Selling Holder is offering;
•: the terms of the offering, including the name of any underwriter, dealer or agent;
•: the purchase price paid by any underwriter;
•: any discount, commission and other underwriter compensation;
•: any discount, commission or concession allowed or reallowed or paid to any dealer; and
•: the proposed selling price to the public.

We have agreed to indemnify the Selling Holders against claims and losses due to material misstatements or omissions made by the Company (and not by the Selling Holders) in this prospectus. Each of the Selling Holders has agreed to indemnify us against claims and losses due to material misstatements or omissions made by them.

USE OF PROCEEDS

Isonics will receive no proceeds from the sale by the Selling Holders of the 182,947 shares of common stock or the 1,350,000 Class B Warrants included in this Prospectus.

Isonics will receive from $0.00 to a maximum of $2,670,165, from the exercise of the 1,780,110 Class B Warrants that are included in this prospectus.

If all of the Class B Warrants included in this prospectus are exercised before December 31, 2005, (of which we can offer no assurance), there will be 1,982,610 Class C Warrants outstanding. We will receive from $0.00 to a maximum of $4,956,525 from the exercise of the Class C Warrants included in this prospectus.

In either case, we expect to use any proceeds received for various corporate purposes, generally as follows depending, however, on our needs for capital at the time the warrants are exercised (if exercised). The following summary sets forth our current priorities which may change in the future:

We would use approximately 80%-90% of the first $2,000,000 of proceeds for expansion of our SOI operations (including marketing efforts) and financing of our homeland security operations through our 85% owned subsidiary, IUT Detection Technologies, Inc. (with our use of those proceeds being approximately equally divided between those two uses). We would also anticipate using 10% to 20% of the first $2,000,000 of proceeds for general working capital purposes.

Proceeds in excess of $2,000,000 would be used for research and development efforts (30%), SOI operations (20%), homeland security operations (20%) and working capital (30%).

Clearly the precise use of proceeds would be modified depending on our corporate needs when the proceeds are received.

BUSINESS

Because we want to provide you with more meaningful and useful information, this prospectus contains certain "forward-looking statements" (as such term is defined in section 21E of the Securities Exchange Act of 1934, as amended). These statements reflect our current expectations regarding our possible future results of operations, performance, and achievements. These forward-looking statements are made pursuant to the safe harbor provisions of the Private Securities Litigation Reform Act of 1995.

Wherever possible, we have tried to identify these forward-looking statements by using words such as "anticipate," "believe," "estimate," "expect," "plan," "intend," and similar expressions. These statements reflect our current beliefs and are based on information currently available to us. Accordingly, these statements are subject to certain risks, uncertainties, and contingencies, which could cause our actual results, performance, or achievements to differ materially from those expressed in, or implied by, such statements. We have described these risks, uncertainties and contingencies under "Risk Factors" and "Management's Discussion and Analysis of Financial Condition or Plan of Operation." We have no obligation to update or revise any such forward-looking statements that may be made to reflect events or circumstances after the date of this report.

General Discussion

Our Isotope Business. In order to develop our products, it is usually necessary to increase ("enrich") or decrease ("deplete") the concentration of a particular isotope or isotopes. There are over 280 naturally occurring stable isotopes of 83 different elements. The number of isotopes of any given element varies widely. Stable isotopes of a given element typically do not differ significantly in their chemical behavior. Stable isotopes of an element differ in mass and diameter, as well as several nuclear properties, such as cross-section, spin, and magnetic moment. Differences in these properties can result in substantially different effects, and some of these different effects have the potential for commercial application.

Isotopes are typically referred to by their atomic mass number, which number is derived from the number of protons and neutrons in the atom's nucleus. For example, oxygen-18 has eight protons and ten neutrons in its nucleus, and silicon-28 has fourteen protons and fourteen neutrons in its nucleus. In ultra chemically pure crystals, grown for electronics or optical applications, isotopic impurities can be the greatest contributor to crystal disorder because of mass and diameter differences. Eliminating these variations by using a single enriched isotope (i.e. an isotopically-pure substance) increases thermal conductivity and optical transparency, and thus improves product performance. Similarly, enriching or depleting isotopes based upon their nuclear cross-sections allows materials to be engineered for applications in the nuclear power industry, for controlled doping of semiconductors in the computer industry, and for use as targets to produce radioisotopes for the life sciences and other industries.

Stable Isotopes. Stable isotopes may be thought of as extremely pure materials. Not only are these isotopes chemically pure, but they frequently consist of only one isotope depending on the level of enrichment. This extra degree of purification, accomplished on the sub-atomic level, provides enhanced performance properties as distinguished from normal (i.e., chemical only) purity materials. Depleted isotopes are the result of the elimination (or reduction in level) of an isotope, or isotopes, and can prevent the creation of undesirable byproducts in subsequent processing steps. In some instances the undesirable byproducts are produced during the intended use of the non-depleted isotope material. Stable isotopes have commercial uses in several areas, including, but not limited to:

•: power generation;
•: medical research, diagnostics, and drug development;
•: product tagging and stewardship;

•: semiconductors; and
•: optical materials.

We have successfully developed and commercialized several isotope products (notably, even-numbered cadmium isotopes for use with helium-cadmium lasers and depleted zinc oxide for nuclear power plants). We intend to promote the emergence and growth of new stable isotope applications.

Radioisotopes. The radioisotopes we acquire and sell are typically used in medical diagnostic and therapy applications. A key property of a radioisotope is its half-life. The half-life is a measure of how fast a radioisotope decays into either a stable isotope or another radioisotope. Since most radioisotopes used in life science applications have short half-lives, they are rarely found in nature. Therefore, they are manmade and must generally be used shortly after production. They are typically produced by irradiating a target material (often an enriched or depleted stable isotope) in a nuclear reactor, cyclotron or linac. These devices generate the appropriate particles required to transmute or convert the target material into the desired radioisotope.

SOI Wafer Manufacturing. In January 2002, we commenced our SOI wafer operations under an alliance agreement with Silicon Quest International, Inc. ("SQI") whereby SQI agreed to exclusively manufacture and supply SOI wafers for Isonics. As described in more detail below, we commenced manufacturing SOI wafers in our own facility in November 2002 and terminated our agreement with SQI.

Homeland Security. In December 2002, we acquired certain isotope-based trace detection technology to be used to detect explosives and chemical and biological weapons from IUT as described further below.

Company Strategy

We believe our strength lies in our ability to bring the necessary resources together to identify, evaluate, develop, engineer and successfully commercialize applications for stable and radioactive isotopes, non-isotopic materials, and value-added products manufactured from these materials.

We believe we have created a product development model that can serve as a basis for our current and future expansion. To capitalize on the commercial opportunities that have been identified for stable isotopes, we have adopted a business strategy designed to maximize the value of our technologies, business development, and management resources, while minimizing capital costs. This strategy involves:

•: focusing on development of high value-added products, which products should give us a competitive advantage in large or growing markets;
•: leveraging research and development expenditures through collaborations, government programs, and corporate and academic partnerships;
•: minimizing early capital needs by obtaining stable and radioactive isotopes through alliances and supply agreements with existing stable and radioactive isotope sources, followed by investment in Isonics-owned isotope production facilities when markets are better established and the optimum production technology has been determined;
•: obtaining value-added processing technology through sub-contract manufacturing agreements, joint ventures, and acquisitions of strategically important technologies and companies; and
•: developing a time-balanced product pipeline to provide a continual supply of new business opportunities.

To further our strategy as discussed above, in calendar year 2002 we commenced two new potential businesses—the manufacture and marketing of SOI wafers and the acquisition of detection technology for the commencement of our homeland security operations.

Recent Business Dispositions

Sale of Chemotrade Leipzig GmbH. On July 31, 2002, we sold our 75% interest in CTL to the 25% shareholder for 50,000 Euros (approximately $48,000). The transaction was effective May 1, 2002. CTL, which primarily resells oxygen-18, was notified that its current distribution agreement (which expired on December 31, 2002) would not be renewed. The loss of this agreement was significant as it accounted for approximately 80% of CTL's revenue and as a result, CTL's ability to generate revenues after December 31, 2002 was extremely uncertain. In conjunction with this disposition, Chemotrade is now free to pursue other opportunities (including selling oxygen-18 throughout the European market) that may have been in conflict with the interests of CTL. We recognized revenue and gross margin related to CTL of approximately $1,575,000 and $326,000, respectively for the year ended April 30, 2002. We have fully replaced the lost revenue during the nine months ended January 31, 2003 with additional product sales to new and existing customers both domestically and in Europe. We fully anticipate that we will continue this trend during the last quarter of the year ending April 30, 2003 but we can offer no assurances that this will come to fruition.

Sale of Depleted Zinc Business. On December 1, 1999, we sold our depleted zinc business to Eagle-Picher for $8.2 million, of which $6.7 million was paid on December 1, 1999. Disputes between Isonics and Eagle-Picher arose which were resolved in a settlement agreement on July 24, 2002. We received $2,500,000 as consideration for the settlement. See "Legal Proceedings".

Reorganization and Subsequent Sale of International Process Research Corporation. On April 30, 1998, we purchased all of the outstanding capital stock of IPRC from a previously unaffiliated corporation (Metallurgy International, Inc.). IPRC was a materials processing and contract research and development company. Through December 1, 1999, IPRC performed key steps in our depleted zinc manufacturing process. We acquired IPRC to assure future availability of this manufacturing technology (which we subsequently sold to Eagle-Picher), and to provide an infrastructure platform for performing value-added processing of other isotopes. IPRC had also jointly developed new, lower-cost technologies to enable its customers to better meet the various metallurgical and mineral processing needs. In connection with the acquisition, we issued 353,982 shares of our common stock (valued at $708,000) in exchange for all of the outstanding shares of IPRC. We accounted for the acquisition as a purchase.

On May 1, 2000, we substantially reorganized IPRC to focus on the recovery and recycling of zinc metal from various sources, including galvanized steel scrap, electric arc furnace dust, and brass scrap. We chose this course of action for two reasons. First, we believed the market potential for this, and related processes, was significant. Second, the profound and lengthy slump in the mineral processing and mining industries significantly eroded IPRC's historical customer base. We continued to meet the demands of a few remaining customers through various sub-contractor relationships. We also kept the physical infrastructure in place at our Golden, Colorado location in case the market conditions warranted a reentry into IPRC's historical markets. We used a significant portion of this infrastructure in our zinc recovery and recycling project.

In January 2001, we acquired the patent rights related to the recovery and recycling of zinc processes from three unaffiliated parties. We issued a total of 75,000 shares of our common stock valued at $131,000 for these rights. On February 1, 2001, we sold IPRC and transferred the patent rights for the zinc recovery process to Interpro Zinc, LLC, a newly-formed entity owned by Dr. Robert H. Cuttriss, formerly president of IPRC, James E. Alexander, president, chief executive officer, and chairman of the board of directors of Isonics Corporation, and Boris Rubizhevsky, senior vice president and director of Isonics Corporation. Each of the three aforementioned individuals owns

25% of Interpro Zinc, LLC. Isonics Corporation owns the remaining 25%. Each individual contributed $100,000 to Interpro Zinc, LLC to continue the development of the zinc recovery technology. Interpro Zinc, LLC has informed us that they will be actively seeking further investment to continue their development and commercialization efforts.

As a part of the February 1, 2001, transaction, Interpro Zinc, LLC assumed approximately $700,000 in liabilities associated with the operations of IPRC and agreed to indemnify us against any contingent liabilities related to the IPRC site in Golden.

The disinterested directors of Isonics approved the transaction after receiving advice from management not participating in the transaction, as well as independent consultants, and believe that the transaction was fair and reasonable to, and in the best interests of, Isonics and our shareholders.

From May 1, 2000, through January 31, 2001, IPRC did not engage in any revenue producing activities. We have no intention of returning to the contract research and development activities that IPRC engaged in prior to May 1, 2000.

Products

Our revenues have historically derived from sales from a broad range of sources. The mix of our revenues has changed significantly during the past three years:

In fiscal 2000, our revenues were generated from depleted zinc sales, oxygen-18 and other stable isotopes sales, radioisotopes sales, and from contract research and development activities. We sold our depleted zinc business in December 1999 and did not recognize any revenues from depleted zinc sales after that time.

During fiscal 2001, our revenues were solely generated from sales of stable and radioactive isotopes because of the prior sale of the depleted zinc operations and the cessation by IPRC of its contract research and development activities.

During fiscal 2002, our revenues were generated from sales of stable and radioactive isotopes and, commencing January 2002, from sales of SOI wafers. Our sales mix has remained approximately the same through January 31, 2003.

As evidenced by the commencement of our own manufacturing operations for SOI wafers and our recent acquisition of the detection technology from IUT, we are attempting to develop new product lines, which we expect to add to our revenue stream. We do not expect any significant revenues from these new products during fiscal 2003. The following is a more specific discussion of our current products.

Isotopically-Pure Semiconductor Materials

The majority of semiconductor devices built today use natural silicon as the starting material. Silicon has many desirable characteristics as compared to other semiconductor materials, and the semiconductor industry has invested billions of dollars to improve and optimize their manufacturing technologies for silicon-based devices. Devices fabricated on single crystal silicon have performance characteristics that are governed by the electrical and physical characteristics of silicon including:

•: carrier mobilities,
•: effective mass of the carriers,
•: energy band-gap,
•: electrical conductivity, and
•: thermal conductivity.

Carrier mobilities, for example, govern signal transit times and thus place a limit on device speed. Thermal conductivity governs power dissipation, which, in turn, places an upper limit on the packing densities achievable for devices on a chip, or on the amount of power that can safely be generated in the circuit without significantly degrading circuit performance.

The semiconductor industry trend of adding more transistors to a single chip to increase performance, and shrinking the size of transistors to both increase performance and decrease costs, has resulted in increased power requirements and significantly higher operating temperatures. Nowhere is this trend more evident than in microprocessors. Historically, the 80286, 80386, and 80486 generations of microprocessors typically did not need external heat sinks to remove heat and function properly. High operating temperatures and thermal management were not issues outside of mainframe or workstation computers.

Beginning with the Pentium®, Sparc®, and Alpha® microprocessors, heat sinks and fans became necessary to control the higher operating temperatures. According to the Semiconductor Industry Association's National Technology Roadmap for Semiconductors, when the microprocessor's power requirements exceed approximately 110 watts, heat sinks and fans will no longer be adequate and active cooling (refrigeration) will be required. Most of the major computer companies have already demonstrated cryogenically cooled computers that operate up to one-third faster than their conventionally cooled counterparts. These cryogenic cooling devices can cost upwards of $400 per microprocessor.

A significant body of research, generated over the last twenty years, supports the thesis that isotopically-pure semiconductor materials have superior thermal conductivity properties compared to natural, multi-isotopic materials. We believe this solution (i.e., using isotopically-pure semiconductor materials to manage operating temperatures) is compatible with virtually every other heat management solution currently implemented or envisioned to date. Critically, it does not require changing a single device design or manufacturing process because isotopically-pure semiconductor materials are essentially chemically and physically identical to naturally-occurring semiconductor materials. For example, silicon has three naturally occurring stable isotopes:

•: silicon-28 (92% natural abundance),
•: silicon-29 (5% natural abundance), and
•: silicon-30 (3% natural abundance).

By purifying silicon to 99.9% silicon-28, the thermal conductivity is improved 60% at room temperature and over 600% at -423 degrees Fahrenheit.

In 1997, we began a program to introduce 99.9% isotopically-pure silicon-28 as a superior substitute to natural silicon for the manufacture of semiconductor devices. See "Research and Development." Our first efforts toward developing isotopically-pure semiconductors involved securing the intellectual property rights to commercialize silicon-28 and similar materials. These efforts culminated in our acquiring exclusive rights to two Yale University patents. See "Patents and Proprietary Rights."

We then began acquiring sufficient quantities of pure silicon-28 to make epitaxial wafers. These wafers have been sold or given to numerous manufacturers and academic institutions to perform additional tests to validate previous findings and to confirm the ability of pure silicon-28 to substitute for natural silicon in their manufacturing processes. These tests support our belief that pure silicon-28 is not only a viable substitute material for natural silicon, but that the anticipated thermal conductivity property improvements are significant.

To expand this testing, in July 2002 Isonics qualified Globitech Incorporated to produce silicon-28 epitaxial wafers using silicon-28 trichlorosilane and we implemented a working agreement with them to

produce silicon-28 epitaxial wafers for our customers. Globitech is an epitaxial wafer manufacturer located in Sherman, Texas. In addition to producing wafers for Isonics, we have agreed to work with Globitech to supply silicon-28 wafers to Globitech's customers, if demand develops.

In August 2001, we entered into a marketing agreement with a major wafer manufacturer. We have since supplied silicon-28 trichlorosilane (which was produced in the United States) to this wafer producer for the manufacture of silicon-28 epitaxial wafers. These wafers are being supplied to interested customers worldwide for evaluation in a number of semiconductor devices. This agreement is critical in assuring that silicon-28 epitaxial wafers will be available to meet the increasingly stringent quality demands of the semiconductor industry. Any revenues generated under this agreement will be shared 50-50 with the wafer manufacturer.

The next step in our development program is to make bulk wafers of pure silicon-28. The manufacture of bulk wafers requires substantially more material than we could economically acquire from our existing suppliers. We sought a domestic, economical supply of silicon-28 in a contract with Eagle-Picher which believed that its silicon isotope separation technology could supply the necessary silicon-28 to us. Eagle-Picher was not able to supply silicon-28, and disputes arose which were resolved in a settlement agreement on July 24, 2002. See "Legal Proceedings".

We have identified other potential sources for supplying silicon-28, but those sources are not domestic. We have received silicon-28 samples from The Institute of Stable Isotopes ("ISI"), located in Tiblisi, Republic of Georgia. Our analysis indicates that the quality of the silicon-28 appears to meet our requirements, and we are attempting to obtain larger quantities for further testing. We are optimistic about the prospects for using silicon-28 or the related enrichment technology from this supplier to meet our needs. Although we need 200 kilograms of silicon-28 for our research and development activities, we have not yet placed an order for this quantity of silicon-28 because of a lack of available financing. At an expected cost of approximately $25.00 per gram, 200 kilograms would cost approximately $5,000,000.

We anticipate very little revenue from silicon-28 based products in fiscal 2003, as we are still developing this business. Nonetheless, if we are able to complete our research and development efforts successfully and market silicon-28 based products, we could begin generating revenues in subsequent fiscal years.

We Supply Isotopes for Life Sciences Applications

For the past several years, we have supplied stable isotopes in elemental and simple compound forms for use in life science applications. In 1998, we expanded our product offerings to include radioisotopes. We will continue selling our current stable and radioactive isotope products/services, develop new ones along similar lines and expand our offerings through vertical integration. From time to time we evaluate building additional isotope separation facilities in the United States or Western Europe. We currently do not have the capital to do so, but it is an important aspect of our strategic plan because we expect that it will reduce our reliance on foreign manufacturers and enhance our bottom line. In addition, we intend to expand our value-added manufacturing capabilities.

Our existing and emerging life sciences products include isotopes used for a large number of purposes and can be categorized as follows:

•: isotopes used in biomedical research, particularly drug development;
•: isotopes used in medical imaging and therapy; and
•: isotopes used in medical diagnostic and analytic equipment.

Although there is currently little FDA oversight affecting our supply of the raw material isotopes to our customers for their use in life science applications, FDA regulation may increase in the next few

years. It is not immediately apparent what implications any additional regulation may have for us. The following paragraphs provide a brief summary of our existing and emerging life sciences products:

Biomedical Research. Stable and radioactive isotopes are used by researchers to investigate living systems, determine the chemical structure of important biological compounds, design new drugs and measure extremely low levels of environmental toxins. Known quantities of isotopes including carbon, nitrogen, hydrogen, oxygen, and other elements, are combined into thousands of different chemical compounds. These isotopes are then introduced into biological systems and tracked/measured using a variety of analytic tools. Our products are typically simple labeled-compounds that are used by our customers to synthesize more complex and higher-value compounds. Examples of existing and emerging applications for these products include:

Drug Discovery by Screening. Drugs have historically been designed using a screening process in which prior experience was employed to determine what chemicals might work to treat a condition, and then tests on subjects were performed. Traditionally, numerous aspects of the many phases of drug development have been carried out using radioisotope-labeled versions of promising compounds. The process starts with a very large number of candidate compounds, which are "screened" for their affect on a particular biochemical system. Promising compounds are then subjected to the follow-on phases of drug development and testing. We supply basic or "precursor" compounds labeled with radioisotopes, such as carbon-14 and phosphorous-33, to manufacturers who incorporate them into more complex radioisotope labeled compounds. These compounds are in turn employed in the pharmaceutical development processes mentioned above. The carbon-14 precursors are produced under contract by IUT, a company in which we hold a minority interest.

Rational drug design. In contrast with the "hit-or-miss" approach of screening-based drug discovery, today specialized instrumentation is routinely available to determine the chemical structure of large molecules, including the human proteins and enzymes that a drug is intended to affect. This approach is known as rational drug design. We believe that this new instrumentation, combined with sophisticated stable isotope-labeled compounds, will prove beneficial in determining the chemical structure of human proteins and enzymes. We believe rational drug design will require an increasing supply of stable isotopes. We market primarily simple compounds labeled with deuterium, carbon-13 and nitrogen-15 to our customers for this application.

Metabolic studies. Increasingly, studies of new drugs are performed with isotope-labeled drugs to facilitate research on metabolism, distribution, mode of action, and elimination. The FDA one day may require the isotope labeling of all new drugs for investigational use during some or all phases of pre-clinical and clinical evaluations of these drugs, although it does not so mandate today.

Medical Imaging and Therapy. Radioisotopes have been used for years in the diagnosis and treatment of many medical conditions. The trend in these two areas has been towards increasingly more specific labeled compounds that, after labeling with the radioisotope and introduction into the patient, quickly concentrate at the disease site(s). In theory, the appropriate choices of chemical and radioisotope labels facilitate disease detection and stage determination, which improves therapy selection, administration and monitoring. The medical community is developing and testing several classes of chemical compounds ranging from monoclonal antibodies to peptides for use in the detection, and, eventually, the treatment of many diseases. The FDA has approved some of these for use.

We currently supply stable isotopes of oxygen, thallium, zinc, cadmium, xenon, strontium, and many others that are routinely used in a variety of medical imaging and therapy applications. These are used in their enriched stable form, such as Xenon-129, or converted to a specific radioactive isotope in a cyclotron or nuclear reactor. We believe that the increased supply of new isotopes combined with the

ongoing development of highly specific biochemical therapies represents a major growth opportunity in this market segment.

The first two applications below represent a significant portion of our revenues this year and we believe they will continue to do so for several years to come. For the first application, we supply a stable isotope, which is converted by the customer to a radioactive isotope and used to detect cancer and other metabolic disorders. For the second, we supply the radioisotopes as radiochemicals for incorporation by the customer into cancer-fighting therapeutic devices. A third application, Diagnostic Breath Testing, is also included. This is an example of a stable isotope that remains stable and is incorporated into compounds, which are then used to detect the presence or absence of disease, dose drugs and monitor therapy.

Positron Emission Tomography ("PET"). Although this powerful nuclear medicine imaging technology has been available for over 25 years, its complexity and cost until recently had relegated PET to a research role. Technology and infrastructure improvements have reduced the cost and complexity of performing PET studies. PET's unique ability to diagnose multiple metabolic abnormalities, particularly cancer, has resulted in recent approvals by the FDA and favorable reimbursement levels by Medicare, Medicaid, and third party insurers. Similar approvals are now common in Europe and parts of Asia though reimbursement levels vary. We believe PET studies are growing at rates of approximately 20 to 50% annually worldwide.

Oxygen-18 is a rare stable isotope of oxygen. Oxygen-18 is used to produce fluorine-18, a radioisotope which is the source of the positrons tracked by the PET imaging equipment. Demand for oxygen-18 is currently greater than the supply. Although we do not produce oxygen-18 ourselves, we purchase and resell oxygen-18 to end users worldwide. In fiscal 1999, we introduced a novel program to recycle "used" oxygen-18; we believe that this program which allows our customers to benefit from the disposal of depleted oxygen-18 provides an economic advantage to our customers and provides a competitive advantage for us over our competitors.

Brachytherapy. Cancer therapy continues to evolve to target specific types of cancer more effectively. Today, external beam radiotherapy and chemotherapy are the predominant technologies used in cancer treatment. However, another technology, brachytherapy, is emerging in the treatment of specific cancers such as prostate cancer.

In brachytherapy, small sealed radioactive seeds are inserted directly into the tumor using a variety of minimally invasive surgical methods. The radioisotope, which is placed inside the seed, is selected and manufactured to ensure that only the cancerous tissue immediately adjacent to the implanted seed is irradiated. This minimizes the irradiation of nearby healthy tissue, a common adverse side effect that occurs with external beam radiotherapy. There are three primary criteria that govern the selection of the radioisotope to be implanted in the patient:

•: half-life,
•: type of radiation emitted, and
•: strength of the radiation emitted.

Several companies (Nycomed-Amersham, Theragenics, North American Scientific, and others) already offer, or have plans to offer, brachytherapy products for the treatment of prostate cancer. Studies continue in the applicability of this technique for other tumor types, including some breast and eye cancers. We currently supply several companies with radioisotopes (or stable isotope targets to be made into radioisotopes) for this application. We believe this market represents one of the largest growth opportunities for radioisotopes. It also represents a significant opportunity to provide value-added products/services in the form of manufactured subcomponents such as the seeds.

Diagnostic Breath Tests (DBTs). DBTs are a new class of non-invasive, diagnostic procedures gaining worldwide acceptance. DBTs use stable isotope labeled compounds to detect a wide range of human abnormalities, particularly digestive disorders such as ulcers. The FDA has approved one test and similar approvals exist in Europe. Demand for DBTs has increased as health care insurance providers have determined to include reimbursement in many health insurance plans. That demand, in turn, is expected to accelerate as regulatory approval is awarded in other countries. Many other tests based on the same principles as DBTs are in various stages of development worldwide. We have supplied small amounts of stable isotope raw material to companies developing DBT chemicals. While these sales are not currently a large source of revenues, we continue our sales and marketing efforts in order to monitor the development and direction of this potentially very large market.

Calibration Standards. There are many medical devices that measure levels of radiation in patients. These devices need to be calibrated using standards of known radiation strength and type in order to ensure their accuracy. These standards derive from radioisotopes such as cobalt-57 and gadolinium-153. We supply many of the stable isotope target materials, as well as radioisotopes, to many of the manufactures of the equipment needing calibration.

Medical equipment calibration is one of the largest markets for radioactive source standards. These medical devices are found in the nuclear medicine departments at thousands of hospitals around the world. The continued growth in the numbers and complexity of nuclear medicine imaging equipment, especially PET, ensure growth in the demand for these radioisotopes.

We have commenced our Silicon-on-Insulator Wafer Manufacturing and Marketing Operations

SEI License Agreement. On September 14, 2001 we licensed technology owned by Silicon Evolution, Inc. ("SEI") which allowed us to enter the business of manufacturing SOI wafers and other silicon wafers. We issued 500,000 shares of our newly-created Series B Preferred Stock to SEI which automatically converted into 500,000 shares of our common stock following our November 13, 2001 shareholders' meeting. The license is exclusive, perpetual, and does not bear any royalty obligation.

The technology we licensed from SEI allows the owner of the technology to manufacture SOI wafers for integrated circuit component (IC's or "Chips") and micro mechanical system (MEMS) manufacturers. We licensed SEI's core intellectual property (IP) technology for precision wafer polishing, cleaning, and bonding silicon wafers to produce thick-film SOI in the 100 mm, 150 mm, 200 mm, and 300mm form factors.

SEI filed for Chapter 7 bankruptcy on November 21, 2001. As part of the Bankruptcy Trustee's duties in the case, the Trustee reviewed our entire financial and business relationship with SEI. Ultimately we entered into a series of agreements with the Trustee in which, among other things, the Trustee:

(i): acknowledged our prior acquisition of virtually all of SEI's intellectual property,
(ii): conveyed all of SEI's residual intellectual property rights to us,
(iii): acknowledged our secured creditor status for all amounts we had loaned SEI before the bankruptcy, including all accrued interest and attorneys' fees we incurred during the bankruptcy case, and
(iv): approved our acquiring selected additional items of SEI's equipment from the bankruptcy estate by crediting the value of the equipment against our secured claim.

The Bankruptcy Court approved all of these agreements and we completed these transactions in April 2003.

SOI Wafer Manufacturing. In an effort to commence our SOI business operations, on December 19, 2001 we entered into an alliance agreement with SQI whereby SQI agreed to exclusively manufacture and supply SOI wafers for us and to provide certain sales and marketing services to us as requested. As a result of the establishment of our own thick-film SOI manufacturing facilities, the alliance agreement with SQI was terminated effective November 22, 2002. Under the terms of the agreement, SQI is prohibited from producing SOI wafers until November 22, 2003.

We shipped our first SOI wafers to one of our customers in late January 2002 and have continued to ship SOI wafers to our customers since that time. Our agreement with SQI permitted us to commence the manufacturing and marketing of SOI wafers using the technology we licensed from SEI, without incurring the significant cash investment we originally contemplated. During the year ended April 30, 2002 and the nine months ended January 31, 2003, we recognized revenue of approximately $15,000 and $118,000, respectively related to the sale of SOI wafers. We anticipate increasing our revenues from the sale of SOI wafers in the last three months of fiscal 2003, however we can offer no assurance that this will come to fruition.

In September 2002, we entered into several lease agreements related to building space, equipment and services in order to establish our own stand-alone wafer manufacturing facilities ("Fab-1") in Vancouver, Washington. In addition to leasing the building space, we have acquired the equipment necessary to establish our operations through bankruptcy sales (of which the majority of the cost was offset against our receivable from SEI), draws against our equipment financing agreement with Fidelity, and approximately $350,000 in cash acquisitions. We currently have the ability to produce SOI wafers at Fab-1 and with the proper increase in headcount, we believe that we have the capacity to produce up to 10,000 SOI wafers per month.

We are currently increasing our sales activities but the ramp-up in sales is anticipated to be a slow process as we still need to complete the certification process with most new potential customers and many potential customers are proceeding cautiously with SOI wafers until the United States economy recovers from the current downturn. As a result, although we plan to gradually increase our revenues from the sale of SOI wafers, we may not be able to generate significant revenue from the sale of SOI wafers until fiscal year 2004, if at all.

SOI Business Operations. Based on our market research, it appears to us that the use of SOI wafers is growing rapidly in three major markets:

•: integrated circuits,
•: MEMS manufacturing, and
•: micro-optical chips for fiber-optic network devices.

Chip designers are relentlessly driven by the marketplace to seek innovative ways to improve device performance in three key areas:

•: speed,
•: power consumption, and
•: size.

Based on our review, it appears that the SOI technology enables circuit designers to improve device speed approximately 30%; and as the oxide provides a superior source of insulation, leakage current is reduced, providing an energy savings of better than 30%, as well as enabling circuits to be spaced on a finer pitch. SOI technology also provides a degree of radiation hardening to integrated circuits, thus improving circuit reliability and resistance to soft errors induced by background radiation sources. In MEMS and micro-optical device fabrication the use of SOI technology wafers significantly simplifies the manufacturing process. Our research also indicates that the use of isotopically-pure

silicon-28 in the SOI wafer may further improve its performance, although our research on this point is continuing.

In May 2002, Isonics announced that it had delivered silicon-28 thin-film SOI wafers to a leading semiconductor manufacturer for evaluation. Isonics has not received the results of that evaluation process which is still underway. Because many of the potential customers for silicon-28 are evaluating thin-film SOI wafers for future products, we expect to continue to evaluate manufacturing technology for these wafers and work with other manufacturers in this field to deliver evaluation wafers incorporating silicon-28.

We Are Developing Products to Detect Explosives, Chemical Weapons, Illegal Drugs, and Other Chemical Compounds.

In December 2002, we acquired certain isotope-based trace detection technology to be used to detect explosives and chemical and biological weapons from IUT, an entity in which we hold a 6 percent ownership interest. We issued to IUT 250,000 shares of our restricted common stock as consideration for the technology (which we valued at $272,500). In addition, we granted IUT a 15 percent ownership interest in a newly created subsidiary, IUT Detection Technologies, Inc. ("IDT") that will own and commercialize the trace detection technology. Our ownership percentage may be reduced to the extent we raise additional equity capital through this subsidiary or acquire additional technologies. We also paid $50,000 for an option that would have allowed us, upon exercise to acquire an additional 29.1% interest in IUT from an unaffiliated party for a total purchase price of $450,000. The option expired, unexercised, on February 28, 2003.

The technology that we acquired from IUT consists of devices and technologies based on neutron detection and gamma spectroscopy. A number of these technologies and potential products have been under development at IUT for approximately five years, and some are available in prototype form. We expect that at least one product, named NeutroTest, may be commercially available in the middle of 2003. NeutroTest is a portable instrument capable of interrogating small items, such as baggage or suspicious parcels or other objects. Based on tests to date, NeutroTest can discriminate between explosives, chemical warfare agents, and benign or inert materials, even through steel casings. In its present form, we believe that it can be used to identify landmines and local police and fire departments can use it to assess potential threats in the field. To expand its application, subject to raising additional financing, we plan to configure this technology into a form for screening packages or hand carried luggage at airports, office building, and other high security locations.

IDT will continue to focus on products utilizing nuclear detection technologies and leveraging its experience gained at IUT in establishing relationships with governmental entities, obtaining funding for research and development activities, increasing its portfolio of technology patents and commercializing promising products. IDT will work closely with IUT in completing necessary research and development activities along with providing immediate manufacturing needs. If and when IDT is able to raise sufficient capital, it may establish sales operations in the United States and will explore all available manufacturing options, as well as potential partnership agreements to meet its possible demand for its products.

Distribution Method

We operate Life Sciences sales offices in Columbia, Maryland, and Düsseldorf, Germany. We currently market our SOI wafers through our sales office in Vancouver, Washington. We also identify customers through industry sales journals, website identification and trade shows. In addition, many customers come to us by referral from existing customers. There are a limited number of suppliers in the isotope industry and, therefore, most customers are aware of the products and services we offer. Customers directly place the orders and we either ship directly to the customer through our sales

offices or the product is shipped directly from the supplier. We use commercial courier services such as Federal Express and DHL to ship all products. Before we terminated our agreement with SQI for the manufacture of SOI wafers, SQI was responsible for packaging and shipping wafers to our customers. We are now packaging and shipping from our own manufacturing facilities using commercial courier services.

Significant Customers

As of January 31, 2003, three customers accounted for approximately 65% of total net accounts receivable. Three customers accounted for approximately 37% of total net accounts receivable at April 30, 2002. Two customers (Eastern Isotopes and Perkin Elmer Life Sciences) accounted for approximately 30% and 17%, respectively of revenues for the nine months ended January 31, 2003. Two customers (Perkin Elmer Life Sciences and Eastern Isotopes) accounted for approximately 22% and 20%, respectively of revenues for the year ended April 30, 2002. Two customers (Perkin Elmer Life Sciences and Reviss Ltd.) accounted for approximately 43% and 14%, respectively of the German operation's revenues for the nine months ended January 31, 2003. Two customers (Perkin Elmer Life Sciences and Reviss Ltd.) accounted for approximately 36% and 11%, respectively of the German operation's revenues for the year ended April 30, 2002. Two customers accounted for approximately 50% of the German operation's accounts receivable at January 31, 2003. Two customers accounted for approximately 37% of the German operation's accounts receivable at April 30, 2002.

At April 30, 2001, five customers accounted for approximately 50% of total net accounts receivable. Two customers (Perkin Elmer Life Sciences and Eastern Isotopes) accounted for approximately 16% and 9%, respectively of revenues for the year ended April 30, 2001. Two customers (Perkin Elmer Life Sciences and Reviss Ltd.) accounted for approximately 24% and 11%, respectively of the German operation's revenues for the year ended April 30, 2001. One of these customers accounted for approximately 23% of our German operation's accounts receivable at April 30, 2001.

Significant reductions in sales to any of our large customers have had, and may in the future have, a material adverse effect on us by reducing our revenues and our gross margins. Present or future customers could terminate their purchasing patterns with us or significantly change, reduce, or delay the amount of isotope or other products ordered from us.

Research and Development

Consistent with our product development strategy, we are seeking to identify and evaluate new stable and radioactive isotope products and potential markets for economic and technical feasibility. We will, in addition, continue funding research and development to improve technologies for isotope separation and materials processing technologies. During the nine months ended January 31, 2003, fiscal 2002, and fiscal 2001, research and development expenses were $189,000, $423,000 and $1,134,000, respectively.

In fiscal 2003, we expect to continue to focus our research and development efforts on the production of high chemical-purity silicon-28 silane gas, silicon-28 trichlorosilane and silicon-28 epitaxial wafers. In addition, we are focused on refining our processes associated with the production of SOI Wafers at our plant in Vancouver, Washington. These research and development efforts continue the research and development we performed in fiscal 2002 and 2001. In addition, if we are able to raise additional funding, we may commence significant research and development activities at IDT for the development of commercially-marketable products using the technology we acquired from IUT in December 2002. It is possible that a significant portion of these R&D activities would be outsourced and completed by IUT. These development activities will not be funded from our current working capital.

Through IPRC (which we owned 100% through January 31, 2001), we also performed research and development for the recovery and recycling of zinc from various sources such as scrap metals, including galvanized steel and brass, and electric arc furnace dust.

Silicon-28.

In fiscal 2002, we entered into silicon-28 evaluation programs with two additional semiconductor manufacturers, one of which manufactures semiconductor power devices, and supplied silicon-28 epitaxial wafers to these manufacturers.

In May 2001, we entered into a silicon-28 Joint Development program with Advanced Micro Devices ("AMD"), a major microprocessor manufacturer, whereby we supplied AMD with silicon-28 wafers. In fiscal 2002, we delivered a second lot of silicon-28 epitaxial wafers to AMD. AMD is using our products to make and rigorously test state-of-the-art microprocessors to accurately quantify the benefits of high thermal conductivity silicon-28 in this application. We expect to use the results of the testing program to find the proper balance between performance and cost. In addition to AMD, another major microprocessor manufacturer is currently evaluating silicon-28 epitaxial wafers that were delivered in September 2000. As of January 31, 2003 this testing is still ongoing and we have not received any results.

In fiscal 2001, we delivered a second lot of epitaxial wafers to Cypress Semiconductor, and we also sold a small quantity of silicon-28 epitaxial wafers to two Japanese semiconductor manufacturers for their evaluation.

In fiscal 2001, we entered into two new research programs at universities;

•: The University of Texas (Austin) will evaluate the use of silicon-28 epitaxial wafers as substrates for SiGe:C based transistors, and
•: The University of California (Santa Cruz) will use silicon-28 epitaxial wafers to build novel thermoelectric coolers

In fiscal 2000, we funded two new university research programs and participated in two others.

•: The first funded program is at Southern Methodist University, Dallas, Texas. The Southern Methodist University Program measured the thermal conductivity of silicon-28 thin films with various electrical dopants, and modeled the effect of epitaxial layer thickness on the temperature of silicon and gallium arsenide transistors. This program is essentially completed and the results will be published by SMU.
•: The second funded program was at North Carolina State University, Raleigh, North Carolina. The North Carolina State University Program modeled and built power semiconductor devices and determined the effect of silicon-28 epitaxial layers on the device's temperature distribution. This program has been completed, and the unpublished results indicate that significantly smaller leakage currents were found in diodes built on silicon-28 wafers, as compared to natural silicon wafers, indicating that lower temperatures were achieved due to the thin silicon-28 epitaxial layers.
•: Innovations for High Performance Microelectronics (IHP), a German research organization, is evaluating silicon-28 epitaxial wafers in their SiGe:C technology being developed for wireless telecommunications applications. This program is still underway, although the principal scientist has left IHP to take a position at another institution.
•: DIMES, a research organization associated with Delft University in the Netherlands is evaluating silicon-28 SOI wafers to determine if improved cooling can be accomplished. This program is still underway.

Additionally, in fiscal 2000, we entered into a Cooperative Research & Development Agreement with Lawrence Berkeley Laboratory in Berkeley, California ("LBLBC"), to study the properties of various silicon isotopes. This agreement is part of a U.S. Department of Energy program to apply Russian nuclear weapons technology to commercial applications. Delays within the Department of Energy pushed the start of this program to our fiscal year 2002. The first delivery of silicon isotopes occurred in December 2001. We have provided silicon-28 silane gas to LBLBC as part of the Cooperative Research and Development Agreement, and LBLBC is in the process of manufacturing small amounts of silicon-28, silicon-29 and silicon-20 polysilicon which will be used for growing single crystals.

We also supplied silicon-28 silane gas to ATMI, Inc. in Danbury, Connecticut, and will participate in their Office of Naval Research funded program to investigate isotopically-pure silicon carbide. Initial data from this program have shown an improvement in the thermal conductivity of isotopically pure silicon carbide epitaxial layers. This is the first data that we are aware of that has shown improvement in an isotopically modified compound semiconductor. This program has been completed and a final report is being written.

During fiscal 1999, we signed a joint research and development agreement with Silex Systems, Ltd. The agreement calls for Silex to partially fund some of our development activities and for Silex to assess the feasibility of building a silicon isotope separation plant using Silex's patented laser isotope separation process. This agreement reflects our effort to ensure a large supply of silicon isotopes at a reasonable cost to support the large-scale manufacture of isotopically-pure silicon wafers. According to Silex, in 2001 they started a stable isotope separation program that includes silicon. In December 2002, we received a purchase order (valued at $200,000) from Silex for silicon-28 trichlorosilane. This material will be provided to Sumitomo Mitsubishi Silicon Corporation, a large Japanese wafer manufacturer who will manufacture silicon-28 epitaxial wafers for delivery to several Japanese semiconductor manufacturers.

The adoption of silicon-28 by semiconductor manufacturers will depend on the outcome of the evaluations underway. Even though silicon-28 is a one-for-one substitution for normal silicon, semiconductor companies are very conservative about changing anything in their manufacturing processes, for fear that their yields will suffer. Typically the testing sequence at these companies is:

1): A detailed analysis of the silicon-28 wafers to make sure that they are equivalent to standard wafers and that their is no risk of contamination to the semiconductor fabrication facility or other wafers in process,
2): Manufacture and testing of test transistors to ensure that the electrical parameters are unchanged,
3): Gate oxide integrity testing as a function of oxide thickness to determine any changes from standard wafers,
4): Manufacture and testing of a device using a well documented (generally older) technology to determine any yield or performance improvements,
5): Manufacture and testing of a device using state-of-the-art technology to determine any yield or performance improvements. Depending on the specific company, this could be technology already in production or technology scheduled for future production such as 0.18 or 0.13 micron design rules,
6): Repeat step 5 with a sufficient quantity of wafers from a qualified wafer supplier to generate a statistically valid conclusion, and finally
7): Production planning for the introduction of a new product based on silicon-28.

The testing sequence is a time consuming process. While several companies are well into the evaluation process, we do not expect the introduction of products based on silicon-28 wafers in our fiscal year 2003, and therefore do not expect significant revenues from silicon-28 product sales in fiscal 2003.

Other Semiconductor Isotopes.

In October 2001, we announced an agreement with Cermet, Inc., to research the properties of isotopically-pure zinc oxide. Zinc oxide single crystal wafers are possible substrates for gallium nitride thin film devices and could benefit from higher thermal conductivity. We supplied isotopically-pure zinc oxide which Cermet used to produce single crystal wafers using their proprietary process. The chemical purity of the initial material we provided was not equal to Cermet's standard zinc oxide, and higher purity material will have to be made in order to determine the effectiveness of isotopic enrichment. This research and development program is expected to take an additional twelve to eighteen months to complete.

We have an oral agreement with Voltaix, Inc. of North Branch, New Jersey to act as a distributor of our products for the ion implantation industry. The first product sold in accordance with the Voltaix agreement is silicon tetrafluoride enriched in the silicon-29 isotope. This isotopically enriched material allows higher beam currents and higher productivity than the natural silicon tetrafluoride currently used in the gallium arsenide industry today. Due to the high price for this product from our current suppliers, there has not been much demand from industry.

In October 2000, we announced a Joint Development Agreement with Epichem Inc., to commercialize isotopically pure gallium for the semiconductor and opto-electronic industries. Research to date has focused on the use of trimethylgallium (TMG) as a feedstock for centrifugal separation of gallium. Trimethylgallium has been found to be extremely corrosive to the normal materials of centrifuge construction, and the project has been expanded to consider exotic materials as well as other chemical forms of gallium that may be more suitable. This project is ongoing.

Zinc Recovery and Recycling.

Until February 1, 2001, we owned 100% of IPRC. It had been engaged in contract research and development activities. During the course of its contract research and development activities, IPRC was introduced to a patented technology using chlorine gas to recover and recycle zinc from galvanized steel scrap. Because we sold IPRC effective February 1, 2001, we do not expect to incur additional research or development expenses relating to zinc recovery and recycling, and we are no longer involved in this or any related activities. We received a 25% interest in the purchaser and, therefore, still retain an interest should the purchaser's research and development of zinc recovery prove to be successful.

Patents and Proprietary Rights

We rely primarily on a combination of patents and patent applications, trade secrets, confidentiality procedures and contractual provisions to protect our technology. Despite our efforts to protect our rights, unauthorized parties may attempt to copy aspects of our products or to obtain and use information that we regard as proprietary. Policing unauthorized use of our technology and products is difficult. In addition, the laws of many countries do not protect our rights in information, materials and intellectual property that we regard as proprietary to as great an extent as do the laws of the United States. There can be no assurance that our means of protecting our rights in proprietary information, materials and technology will be adequate or that our competitors will not independently develop similar information, technology, or intellectual property. See "Risk Factors."

We currently have no patents in our own name, although we have filed several patent applications. We have rights to several isotopically engineered innovations regarding electronic and optical materials, which we believe may be patentable. Ongoing work in the area of isotope separation by chemical means (which is currently being performed by outside entities) may also lead to patentable inventions.

In April 1999, we announced that we had entered into an exclusive licensing agreement with Yale University that entitles us to exclusive intellectual property rights to patents covering semiconductor devices derived from isotopically engineered materials. The license requires payment by us of a royalty based on a percentage of our, or our sublicensees', net sales of products derived from technology covered by the Yale patents (#5,144,409, dated September 1, 1992, and #5,442,191, dated August 15, 1995). Each of these patents expire seventeen years after issuance.

Competition

Many of our potential competitors are larger and have significantly greater financial, technical, marketing and other resources than us. Some of our competitors may form partnerships or alliances with large pharmaceutical or electronics companies, with the resulting entity possessing greater market strength than we have. We face competition relative to many of our products, including:

Isotopes for Life Sciences

Our company does not produce stable or radioactive isotopes for use in the Life Sciences applications mentioned here. Instead, we distribute products made for us by a variety of producers in Russia, other countries of the former Soviet Union, Europe and North America. In many cases, we have long-term, exclusive supply relationships in place with producers. In others, we have the advantage of relationships that have developed over upwards of 25 years.

Competitors for stable isotopes fall into two categories—other producers and other distributors. Our primary competition from other producers comes from the other manufacturers of oxygen-18—Rotem, Isotec (Sigma Aldrich), CIL and Marshall Industries. To counter this, we have an exclusive five-year supply agreement in place with our producer. Our product is very high in quality and arguably the best in the world. We offer a very competitive and effective recycle program. As for competition with other distributors, our primary competition comes from Trace Sciences, a privately-held company in Canada with long-standing supply relationships with several stable isotope producers.

Competitors for radioactive isotopes fall into three categories—bulk radiochemical producers, value-added labeled compound producers and other distributors. Our primary competition for bulk production comes from MDS Nordion in Canada. Most other bulk producers are government-owned or university-operated. They typically sell through distributors like Isonics. We have either an exclusive supply agreement or long-standing supply relationships with many of these organizations. In the segment of value-added producers, we have a narrow product line with an exclusive, three-way supply agreement between Chemotrade, IUT and Perkin Elmer Life Sciences (the largest user of this product line). As for competition with other distributors, the primary competitor, Tenex, is also our supply partner. While Tenex let lapse all of its exclusive supply agreements (agency agreements) with distributors on December 31, 2001, we still have an excellent relationship with Tenex and many of its senior personnel.

Semiconductor Materials.

Silicon-28. Although we have not yet identified significant competitors, numerous companies in the United States and throughout the world are currently manufacturing semiconductor materials and are working to improve the thermal conductivity and other beneficial characteristics of semiconductor materials. Many of these companies may be larger than Isonics and have significantly greater financial

resources at their disposal. Given the size and importance of these potential markets, we anticipate that substantial competition will emerge as the markets develop.

SOI Wafers. There are several competitors in the thick-film SOI wafer business, many of which are larger than Isonics and have significant financial resources as compared to Isonics. Analog Devices, Okmetic and SEH-Japan are our most significant competitors.

Homeland Security

A large number of companies are involved in the homeland security industry, an industry that received a significant impetus from the events of September 11, 2001. Many of these companies (such as InVision Technologies, Inc., Ancore Corporation, and L-3 Communications Holdings, Inc.) are significantly larger than Isonics with greater financial resources at their disposal. We believe that the technology that we have acquired from IUT will result in better detection products, which will be attractive to the marketplace. Given the size and importance of the homeland security market, we anticipate that even greater competition will emerge.

Summary of Competition

Many of the areas in which we either compete or intend to compete are rapidly evolving. Competition may develop a patentable product or process that may prevent us from competing in our intended markets. While we expect to compete primarily on the basis of product performance, proprietary position and price, in many cases the first company to introduce a product to the market will obtain at least a temporary competitive advantage over subsequent market entrants.

Manufacturing and Supply

We obtain stable isotopes from a variety of isotope sources, primarily located in Russia or other former Soviet republics. We may invest in our own isotope production facilities in the future upon our determining the optimum production technology for a given isotope or family of isotopes. Other facilities elsewhere in the world, including the Oak Ridge National Laboratory in Oak Ridge, Tennessee, and private and pseudo-governmental facilities in Great Britain, Germany, the Netherlands and the Republic of South Africa, have the potential to produce stable isotopes.

To date, we have only been able to obtain limited quantities of silicon-28 for use in manufacturing epitaxial wafers. We believe that we will be able to obtain adequate supplies of silicon-28, but we are unable to commit to the suppliers because of our lack of working capital. We do not anticipate that Eagle-Picher will be a source of supply of silicon-28 to us even if they resolve their technical problems and are able to produce the product.

We have historically depended on a limited number of suppliers and processors for most of our manufacturing processes.

Except for the agreements with our supplier of oxygen-18 in Russia, we do not have any written agreements with our suppliers and processors. Although we attempt to reduce our dependence on our suppliers, disruption or termination of any of the sources could occur, and such disruptions or terminations could have at least a temporary, materially adverse, affect on our business, financial condition, and results of operations. Moreover, a prolonged inability to obtain alternative sources for processing could have a materially adverse affect on our relations with our customers.

Government Regulation

Regulation by government authorities in the United States and other countries is a significant consideration in the research, development, production, distribution and marketing of our products. In order to clinically test, manufacture, distribute, market and sell products, we must follow safety and

other standards established by applicable regulatory authorities. We may be subject to various laws, regulations and requirements relating to such matters as the import and export of our products, ensuring safe working conditions, laboratory and manufacturing practices, and the use, storage and disposal of hazardous or potentially hazardous substances used in connection with our research, development and manufacturing activities. The regulations potentially material to our business are summarized below.

We are not currently subject to any FDA regulation because we do not currently manufacture any Diagnostic Breath Tests, drug products or other medical devices. Our customers may in many cases be subject to FDA regulation. However, if we test, manufacture, market, distribute, export or sell diagnostic products or medical devices in the future, we will also likely be subject to extensive regulation nationally and internationally.

Other Government Regulation

The import, export, handling, transportation, sale, storage and other activities undertaken in connection with our non-medical products are subject to, or potentially subject to, significant federal, state, local and foreign government controls pertaining to hazardous chemicals, import export controls and other matters. These regulations are complex, pervasive, and constantly evolving. Our ability to effect and maintain compliance with these controls is important to our commercial success. We are not currently engaged in any activities that may require us to incur significant expenses related to environmental compliance.

We rely predominantly on Russian and U.S. freight carriers to handle and deliver all our shipments, and utilize domestic overnight courier services for shipments to our customers. These carriers must comply with Department of Transportation and State regulations pertaining to hazardous chemicals and hazardous waste disposal. These shipments are stored in an area of the facility designated for such materials. We believe we are in compliance, in all material respects, with applicable federal and state environmental regulatory requirements.

The shipments from Russian manufacturing sources now enter the U.S. duty free (without tariff). If the shipments become subject to tariff, we may not be able to sell the imported products. Further, the products may cease to be commercially viable because of these increased tariff costs.

The Nuclear Regulatory Commission has authority to regulate importation and exports of deuterium containing chemicals whose ratio of deuterium atoms to hydrogen atoms exceed 1:5,000. At present, the deuterium containing compounds that we import do not require any special licenses or importation authorization. The Nuclear Regulatory Commission regulates exports of deuterium containing chemicals under general license. We will not be able to ship these chemicals to countries that require a special license for such shipments. None of these countries represents significant current or expected future markets for our products.

Our facilities and employees must also comply with environmental and other regulations concerning our operations. Failure to ensure compliance with such federal, state, or local laws and regulations could have a material adverse effect on us.

In addition, the manufacture, distribution and export of some of our current or potential products and technology may be subject to governmental controls pertaining to materials and technology that have potential military, nuclear power or nuclear weapons purposes. These controls include export license requirements or other restrictions. We may be unable to obtain or maintain such licenses. Further, the failure to obtain or maintain such licenses, or comply with other restrictions that might be placed on such manufacturing and exports, may have a material adverse effect on us and our operations.

Product Liability and Insurance

Our business exposes us to substantial product, environmental, occupational and other liability risks. These risks are inherent in product research and development, manufacturing, marketing, distribution, and in the use of our products and operations. We have, and will attempt to renew product liability insurance (which currently expires April 30, 2004) in order to protect ourselves from such potential exposures, however there can be no guarantee that upon expiration of our current coverage that adequate insurance coverage will be available, and at an acceptable cost. Furthermore, a product liability or other claim could materially and adversely affect our business or financial condition. The terms of our customer agreements provide that liability is limited to our standard warranty to replace non-conforming product, and liability for consequential damages caused by the improper use of our products is limited by contractual terms. Nevertheless, one or more third parties could file suit against us based on product liability, breach of warranty or other claims. The foregoing contract clauses might effectively limit our liability in any such actions.

Employees

As of April 28, 2003, we had 13 full-time employees. Six of our employees have Ph.D.s in scientific or engineering disciplines. Approximately one employee(s) is(are) involved in research and product development, two in sourcing, six in our SOI manufacturing operations, and four in business development and administration. An employee's responsibilities may also encompass areas other than his or her primary area of responsibility. We consider our relations with our employees to be good. None of our employees is covered by a collective bargaining agreement.

Properties

We relocated our headquarters to Golden, Colorado in December 1998, into facilities leased by IPRC. IPRC's lease expired in June 2002, however they are in the process of obtaining a formal extension. Following the sale of IPRC to Interpro Zinc, LLC in February 2001, we entered into a cooperation agreement with Interpro Zinc, LLC that allows us to continue leasing office and storage space on a month-to-month basis, at a current cost of approximately $7,000 per month.

We lease facilities, equipment and services in Vancouver, Washington for our SOI manufacturing facility under three different leases with an unaffiliated landlord. These leases terminate December 31, 2003 and require minimum monthly payments totaling approximately $14,000 per month.

We lease 1,750 square feet for an administrative sales office in Columbia, Maryland that expires December 1, 2003. Chemotrade leases office space in Düsseldorf, Germany. IUT leases production and administration facilities in Berlin, Germany.

Legal Proceedings

During the fiscal year ended April 30, 2002, and subsequently, we were involved in an arbitration matter before the American Arbitration Association in Dallas, Texas (the "AAA") involving our dispute with Eagle-Picher. We filed this arbitration demand on March 26, 2001, and Eagle-Picher filed a competing claim. These competing claims were consolidated into a single proceeding (No. 71Y1980017501) before the AAA. We resolved this dispute on July 24, 2002, before the hearing commenced. Eagle-Picher paid Isonics $2,500,000 as consideration for the settlement ($2,140,000 net of the contingency portion of our legal fees). Neither Isonics nor Eagle-Picher acknowledged fault or liability in connection with the arbitration or with respect to any of the transactions that were the subject of the arbitration.

On July 1, 2002 we agreed to issue 250,000 shares of restricted common stock (valued at $247,500 based upon the fair market value of the stock) to Investor Relations Services, Inc. ("IRSI") so that

IRSI would perform consulting services consisting of financial advisory, strategic business planning and investor and public relations services. We terminated the contract in August 2002 due to nonperformance by IRSI and cancelled the shares and returned them to the "authorized, unissued" category. During October 2002, IRSI disputed our termination of the agreement based upon nonperformance. If this proceeds any further, we intend to vigorously defend our position and believe that the outcome will not have a material impact on the results of our operations or financial condition.

Changes In And Disagreements With Accountants On Accounting And Financial Disclosure

None.

MANAGEMENT

Identification of Directors and Executive Officers

The following table sets forth the names and ages of all the Directors and Executive Officers of Isonics, and the positions held by each such person as of April 28, 2003. The directors each serve until their successors are duly elected and qualified; officers are appointed by, and serve at the pleasure of, the Board of Directors.

Name	Age	Position
James E. Alexander	54	President, Chief Executive Officer, Treasurer, and Chairman of the Board
Boris Rubizhevsky(2)	52	Senior Vice President, Vice Chairman and Director
Daniel J. Grady	48	Vice President, Life Sciences, Manager of Chemotrade.
Stephen J. Burden	54	Vice President, Semiconductor Materials and Products
John V. Sakys	34	Vice President, Chief Financial Officer and Secretary
Hans Walitzki	47	Vice President, Advanced Wafer Technology
Lindsay A. Gardner(1)(2)	52	Director
Richard Parker(1)(2)	59	Director

(1): Member of the Compensation Committee.
(2): Member of the Audit Committee.

Each of the directors holds office until the next annual meeting of shareholders and until his or her successor is elected and qualified or until his or her earlier death, resignation, or removal. Each officer serves at the discretion of the Board.

James E. Alexander is our co-founder. He has served as our President, Chief Executive Officer and as a director since our inception. Mr. Alexander has worked full-time for Isonics since January 1994. From June 1972 to December 1993, he worked in a variety of technology positions at General Electric Corporation in the aircraft engine and nuclear power divisions, most recently as Manager of Technology Programs. Mr. Alexander received his Bachelors degree in Metallurgical Engineering from the University of Cincinnati and performed graduate work in materials science there. He earned a Masters degree in Business Administration from Santa Clara University.

Boris Rubizhevsky is a co-founder of Isonics and has been Senior Vice President and a director since our inception. Mr. Rubizhevsky became Vice Chairman in March 1997 and has worked exclusively for Isonics during this time. From November 1986 through December 1994, he owned and operated SAR Marketing, a consulting firm providing business advice and services to large multinational corporations. From June 1977 to May 1986, Mr. Rubizhevsky worked at General Electric Corporation as Business Development Manager in various international locations. He received his Bachelors degree in Engineering from Stevens Institute of Technology.

Dr. Daniel J. Grady joined us as Vice President, Life Sciences in 1995 and became manager of our Chemotrade subsidiary in January 2002. From March 1994 through September 1995, Dr. Grady was Vice President of Research and Development at Sopha Medical Systems, a medical diagnostic imaging equipment manufacturer. From April 1991 until March 1994, he served as Marketing Manager, Nuclear Energy for General Electric Corporation. From May 1988 through March 1991, Dr. Grady served as Software Engineer Manager, Nuclear Medicine for General Electric in England. From October 1984

through May 1988, he served as Clinical Applications Manager for General Electric Nuclear Medicine. Between June 1981 and October 1984, he served as Engineering Analysis Section Head for TRW. Dr. Grady received his Bachelors and Masters degrees and Ph.D. in Nuclear Engineering from the University of Michigan.

Dr. Stephen J. Burden joined us in January 1997 as Director of Research & Development. He was promoted to Vice President, Semiconductor Materials effective January 1, 1999. From 1993 to 1997, Dr. Burden was Director of Product Development at SP3, Inc., a manufacturer of diamond-coated tools. From 1984 to 1993, he was Manager of Advanced Materials R&D at GTE Valenite, a subsidiary of GTE Corporation, a manufacturer of cutting tools. From 1974 to 1984, Dr. Burden was employed by General Electric Corporation in various capacities. Dr. Burden received his Ph.D. and Masters of Science degrees in Materials Science and Engineering from Drexel University, and his Bachelors degree in Science Engineering from Northwestern University. Dr. Burden also has an MBA from the University of Michigan.

John V. Sakys joined us in May 2001 as Controller. He was promoted to Vice President, Chief Financial Officer effective September 3, 2001, and he serves as corporate Secretary. From September 2000 to April 2001 Mr. Sakys was controller of AuraServ Communications. From July 1998 to September 2000 Mr. Sakys was Director of Financial Reporting for Media One, Inc. From December 1994 to July 1998 Mr. Sakys was an audit manager at Ernst and Young LLP. Mr. Sakys received his Bachelors degree in Business Economics with an emphasis in accounting from the University of California at Santa Barbara and is a Certified Public Accountant.

Dr. Hans Walitzki joined us in November 2001 as Vice President, Advanced Wafer Technology. He was employed as a vice president, chief technology officer, and Chairman of the Board of Directors of Silicon Evolution, Inc. (of Vancouver, Washington) from its formation in February 1999 until November 2001. Silicon Evolution filed a petition for relief under chapter 7 (liquidation) of the United States Bankruptcy Code in December 2001. Before that (from March 1982 until February 1999), Dr. Walitzki was employed at Wacker Siltronic Corporation in Portland, Oregon and its parent Wacker Siltronic AG in Germany. Dr. Walitzki received his Masters degree in Physics from Bonn University, Germany in 1980 and he received his Ph.D. in Physics from Bonn University in 1982.

Lindsay A. Gardner was elected a director in September 1993. Ms. Gardner is currently Director, Corporate Development and Strategic Planning for Menasha Corporation. From 1991 to 2001, Ms. Gardner was President of LG Associates, a U.S.-based management consulting firm providing strategic planning and materials management expertise to foreign company affiliates of U.S. companies in developing countries. During her tenure at LG Associates, Ms. Gardner resided in Moscow, Russia from September 1991 to January 1994, and Beijing, China from January 1994 to April 2000. She currently resides in Appleton, Wisconsin. From 1977 to 1991, Ms. Gardner worked for General Electric Corporation in a variety of management and functional positions including international marketing, quality assurance and supply chain management. Ms. Gardner received a Bachelors degree in International Economics from The George Washington University Elliott School of International Affairs and earned a Masters of Business Administration from the University of Louisville.

Richard Parker has served as a director since August 1998. Mr. Parker previously was Vice-President of Distribution Sales for Cypress Semiconductor and he held that position since December 1997 until his retirement which was effective December 31, 2002. Previously, Mr. Parker was Director of Sales for Cypress from April 1984 to December 1997. Prior to joining Cypress, he held various sales and marketing management positions at Fairchild Semiconductor from 1973 to 1984. He received a Bachelors degree in Education from the University of North Dakota.

There are no significant employees who are not also directors or executive officers. There were and are no family relationships among the officers, directors or any person chosen by Isonics to

become a director or officer. No arrangement exists between any of the above officers and directors pursuant to which any one of those persons was elected to such office or position. None of our directors is also a director of another company which has a class of securities registered under Section 12 of the Securities Exchange Act of 1934, or which is subject to the reporting requirements of Section 15(d) of that act.

Involvement in Certain Legal Proceedings

Based on information submitted by the directors and executive officers, none of the directors or executive officers are involved in, or have been involved in, legal proceedings during the past five years that are material to an evaluation of the ability or integrity of any director or executive officer.

Promoters and Control Persons.

Not applicable.

SECURITY OWNERSHIP OF CERTAIN BENEFICIAL
HOLDERS AND MANAGEMENT

The following table sets forth information regarding the ownership of our common stock as of April 28, 2003 by: (i) each director or nominee for director; (ii) each of the executive officers named in the Summary Compensation Table; (iii) all executive officers and directors of the Company as a group; and (iv) all those known by us to be beneficial owners of more than five percent of our common stock.

Beneficial Owner	Beneficial Ownership Number of Shares	Percent of Total
James E. Alexander(1)	2,126,167	17.2	%
Boris Rubizhevsky(2)	1,708,455	13.8	%
Stephen J. Burden(3)	441,469	3.5	%
Daniel J. Grady(4)	380,428	3.1	%
Hans Walitzki(5)	404,000	3.3	%
Lindsay Gardner(6)	322,775	2.6	%
Richard Parker(7)	72,927	0.6	%
John Sakys(8)	133,339	1.1	%
All executive officers and directors as a group (8 persons). The address for all of the above directors and executives officers is: 5906 McIntyre Street, Golden, CO 80403	5,589,560	40.6	%
Richard and Ana Grossman, Orin Hirschman, Adam Smith Capital Management, Adam Smith Investment Partners, LP, Diamond Capital Management Inc., Adam Smith Investments, Ltd., Adam Smith & Company, Inc., (9)	1,146,736	8.6	%

(1): Includes: (i) 145,000 shares of common stock underlying stock options of which 85,000 are vested as of April 28, 2003 and which are currently exercisable; (ii) 100,000 shares of common stock underlying 100,000 warrants to purchase common stock of Isonics; (iii)85,455 shares of common stock held in the name of The James & Carol Alexander Family Foundation; (iv) 500,000 shares held by wife Carol; (v) 29,000 shares held by son Jonathan Alexander.
(2): Includes: (i) 1,371,872 shares of common stock held jointly with wife Nancy Eiden Rubizhevsky; (ii) 141,250 shares of common stock underlying stock options of which 81,250 are vested as of April 28, 2003 and which are currently exercisable; (iii) 100,000 shares of common stock underlying 100,000 warrants to purchase common stock of Isonics; (iv) 33,333 shares of common stock held by wife Nancy Eiden Rubizhevsky; (v) 31,000 shares of common stock held by son Zachary Rubizhevsky; and (vi) 31,000 shares of common stock held by son Ryan Rubizhevsky.
(3): Includes 341,887 shares of common stock underlying stock options of which 281,887 are vested as of April 28, 2003 and which are currently exercisable.
(4): Includes 329,340 shares of common stock underlying stock options of which 269,340 are vested as of April 28, 2003, and which are currently exercisable.
(5): Includes (i) 200,000 shares of common stock of which 20,000 shares are vested as of April 28, 2003, and (ii) 204,000 shares of common stock underlying stock options of which 84,000 are vested as of April 28, 2003 and which are currently exercisable.
(6): Includes 73,014 shares of common stock underlying stock options that are currently exercisable.
(7): Includes 72,927 shares of common stock underlying stock options that are currently exercisable.
(8): Includes 132,812 shares of common stock underlying stock options of which 82,812 are vested as of April 28, 2003 and which are currently exercisable.

(9): Includes beneficial ownership of the following shares as reported by these persons in their Schedule 13D dated December 19, 2002: (i) 33,400 shares of common stock underlying 20,000 shares of Series A Stock owned of record and beneficially by Richard and Ana Grossman; (ii) 33,400 shares of common stock underlying 20,000 shares of Series A Stock owned of record and beneficially by Orin Hirschman (of which shares Mr. Grossman disclaims beneficial ownership); (iii) 924,068 shares of common stock underlying 553,334 shares of Series A Stock owned of record and beneficially by Adam Smith Investment Partners, L.P.; and (iv) 189,268 shares of common stock underlying 113,334 shares of Series A Stock owned of record and beneficially by Adam Smith Investments, Ltd. The business addresses of Richard Grossman and Orin Hirschman, and the principal executive offices of Adam Smith Investment Partners, L.P. and Adam Smith & Company, Inc., are located at 101 East 52^nd Street, New York, New York 10022. The principal executive offices of Adam Smith Investments, Ltd. are c/o Insinger Fund Administration (BVI) Limited, Tropic Isle Building, P.O. Box 438, Road Town, Tortola, British Virgin Islands.

The Series A Convertible Preferred Stock consisted of 1,830,000 shares issued with a liquidation preference of $1.50 per share and a right to convert the shares based on a one for one basis. As of April 28, 2003, 866,334 shares of Series A Convertible Preferred Stock have been converted into common stock. The conversion right of the preferred stock is currently 1.67 shares of common stock for each share of Series A Convertible Preferred Stock. The Series A Convertible Preferred Stock is entitled to dividends or distributions equal to the amount of the dividend or distribution per share of common stock payable at such time multiplied by the number of shares of common stock then obtainable upon conversion of such Series A Convertible Preferred Stock.

The Redemption Trigger Date for the Series A Convertible Preferred Stock shall be the business day immediately following the thirtieth consecutive trading day that the average closing price during such trading days (or, if no closing price is reported, the average of the bid and ask prices) of the shares of common stock was above $8.00 per share (which minimum price shall be proportionally adjusted for stock splits, stock dividends, reverse stock splits and any other subdivision or combination of the common stock). After the Redemption Date, Isonics may redeem all or any part of the Series A Convertible Preferred Stock at its election at any time and from time to time. The Series A Convertible Preferred Stock is convertible into common stock at the option of the holder until and unless Isonics chooses to redeem such shares on the basis of one share of common stock per share of Series A Convertible Preferred Stock and, until converted, each share of Series A Convertible Preferred Stock is entitled to one vote at any meeting of Isonics' shareholders.

We know of no plans or arrangement that will result in a change of control at Isonics.

EXECUTIVE COMPENSATION

Summary Compensation Table

The following table sets forth information regarding compensation awarded, paid to, or earned by the chief executive officer and the other principal officers of Isonics for the three years ended April 30, 2000, 2001, and 2002. No other executive officer earned salary and bonus compensation exceeding $100,000 during any of those years. This includes all compensation paid to each by Isonics and any subsidiary.

		Annual compensation					Long-term Compensation Awards Awards			Payout
Name and Principal Position	Fiscal Year	($) Salary	($) Bonus		($) Other(a)		($) Restricted Awards	Securities Underlying Options & SARs (#)		LTIP	All Other Compensation
James E. Alexander President & CEO	2000 2001 2002	212,000 240,000 240,000	172,549 0 0	(c)	39,280 0 0	(d)	0 0 0	0 0 120,000	(e)	0 0 0	0 0 0
Boris Rubizhevsky Senior Vice President	2000 2001 2002	191,000 216,000 216,000	147,670 0 0	(f)	28,185 0 0	(g)	0 0 0	0 0 118,750	(h)	0 0 0	0 0 0
Stephen J. Burden, Vice President	2000 2001 2002	125,000 125,000 137,665	0 0 0		23,452 0 0		0 0 0	0 0 109,000	(i)	0 0 0	0 0 0
Daniel J. Grady Vice President	2000 2001 2002	125,000 143,208 144,000	10,271 0 27,750	(k)	23,833 0 0	(j)	0 0 0	0 0 106,375	(l)	0 0 0	0 0 0
John V. Sakys, Vice President(b)	2000 2001 2002	0 0 117,947	0 0 0		0 0 0		0 0 0	0 0 107,812	(m)	0 0 0	0 0 0

(a): Excludes other compensation, the aggregate amount of which does not exceed the lesser of $50,000 or 10% of such named Executive Officers' annual compensation.
(b): Mr. Sakys joined Isonics in May 2001 and became an officer of Isonics effective September 2001.
(c): Mr. Alexander's amount includes $133,451 for forgiveness of a loan owed to Isonics, and $39,098 to pay applicable payroll taxes on a stock bonus granted in January 1999.
(d): Mr. Alexander's amount includes $26,543 for accrued vacation that was paid in December 1999, $9,487 car allowance, and $3,250 employer matching contribution to Isonics' 401(k) plan.
(e): Options to purchase 100,000 shares of common stock were granted in November 2001 with an exercise price of $1.17 (of which 40,000 have vested as of April 28, 2003) and an expiration date of November 12, 2006. Options to purchase 20,000 shares of common stock were granted in March 2002, as consideration for delaying salary in January and March 2002, are currently exercisable at $1.25 per share and expire March 27, 2007. Amount does not include 100,000 common stock warrants granted in March of 2002 which are currently exercisable at $1.25 per share as consideration for pledging common stock as a guarantee relating to the issuance of our Series 2002A Convertible Notes.
(f): Mr. Rubizhevsky's amount includes $113,598 for forgiveness of a loan owed to Isonics, and $29,072 to pay applicable taxes on stock bonus granted in January 1999, and a $5,000 additional cash bonus.
(g): Mr. Rubizhevsky's amount includes $15,005 for accrued vacation that was paid in December 1999, $9,000 car allowance, and $4,180 employer matching contribution to Isonics' 401(k) plan.
(h): Options to purchase 100,000 shares of common stock were granted in November 2001 with an exercise price of $1.17 (of which 40,000 have vested as of April 28, 2003) and an expiration date of November 12, 2006. Options to purchase 18,750 shares of common stock were granted in March 2002, as consideration for

delaying salary in January and March 2002, are currently exercisable at $1.25 per share and expire March 27, 2007. Amount does not include 100,000 common stock warrants granted in March of 2002 which are currently exercisable at $1.25 per share as consideration for pledging common stock as a guarantee relating to the issuance of our Series 2002A Convertible Notes.

(i): Options to purchase 100,000 shares of common stock were granted in November 2001 with an exercise price of $1.06 (of which 40,000 have vested as of April 28, 2003) and an expiration date of November 12, 2011. Options to purchase 9,000 shares of common stock were granted in March 2002, as consideration for delaying salary in January and March 2002, are currently exercisable at $1.13 per share and expire March 27, 2007.
(j): Dr. Grady's amount includes $12,020 for accrued vacation that was paid in December 1999, $9,000 car allowance and $2,813 employer matching contribution to the Isonics' 401(k) plan.
(k): Dr. Grady's amount reflects the granting of 25,000 restricted common shares with a fair market value of $1.11 issued in January 2002.
(l): Options to purchase 100,000 shares of common stock were granted in November 2001 with an exercise price of $1.06 (of which 40,000 have vested as of April 28, 2003) and an expiration date of November 12, 2011. Options to purchase 6,375 shares of common stock were granted in March 2002, as consideration for delaying salary in January and March 2002, are currently exercisable at $1.13 per share and expire March 27, 2007.
(m): Options to purchase 100,000 shares of common stock were granted in May 2001, as consideration for Mr. Sakys joining the Company, with an exercise price of $1.69 per share (of which 50,000 have vested as of April 28, 2003) and an expiration date of May 22, 2011. Options to purchase 7,812 shares of common stock were granted in March 2002, as consideration for delaying salary in January and March 2002, are currently exercisable at $1.13 per share and expire March 27, 2007.

In October 1996, we adopted an employee benefit plan under Internal Revenue Code Section 401(k). The 401(k) plan is a profit sharing plan under which both employees and Isonics are entitled to contribute a portion of compensation and earnings, respectively, to investment funds to supplement employee retirement benefits. On November 1, 1999, the Isonics Corporation 401(k) plan was merged with the IPRC 401(k) plan and Isonics has continued that plan.

We do not have written plans to pay bonuses or deferred compensation to our employees except those expressly stated in the following sections.

We have adopted medical, dental, and life insurance plans for our employees and their dependents at our cost. In some cases, we also provide discretionary disability and other insurance plans for the benefit of our employees.

Employment Agreements, Termination of Employment and Change In Control Agreements

We do not have employment contracts with either our president (James E. Alexander) or our senior vice president (Boris Rubizhevsky). We do have employment agreements with Dr. Daniel J. Grady, Dr. Stephen J. Burden, Dr. Hans Walitzki, and Mr. John V. Sakys. The agreements have an indefinite term (except for the agreement with Dr. Walitzki which expires November 2006) and provide for at-will employment, terminable at any time by either party. The agreements provide for a rate of annual compensation, which we will review annually. Under each agreement, Dr. Grady, Dr. Burden, Dr. Walitzki, and Mr. Sakys are entitled to participate in our standard plans and policies. The agreements also include confidentiality and invention assignment provisions.

At the end of the fiscal year ended April 30, 2001, Mr. Herbert Hegener was covered by an employment agreement extending through December 2001. This agreement expired in accordance with its terms, although effective January 1, 2002, we entered into a consulting agreement with HS-Consult GmbH ("HS Consult"), a firm that Mr. Hegener owns. Under this agreement (which expired December 31, 2002), Mr. Hegener assisted Chemotrade in buying and selling isotope products. We were paying HS-Consult 5,500 Euros per month for these services, and have issued them a warrant to purchase 50,000 shares of common stock for an exercise price of $1.20 per share, exercisable through

December 31, 2004. The agreement with HS-Consult was extended through December 31, 2003 at a rate of 5,500 Euros per month.

Stock Options and Option Plans

We grant options to executive officers, employees, and consultants under the following plans (collectively the "Plans"):

(a): 1996 Stock Option Plan. Although this plan has been terminated, there are options outstanding. As of April 28, 2003, options to purchase 358,769 shares were outstanding under this plan.
(b): 1996 Executives' Equity Incentive Plan. The Executives' Plan authorizes the grant of options to purchase 2,000,000 stock options. The options granted may be either incentive stock options, if they meet the requirements of Section 422 of the Internal Revenue Code, or non-qualified stock options. As of April 28, 2003, options to purchase 994,062 shares were outstanding under this plan.
(c): 1996 Equity Incentive Plan. The Employees' Plan authorizes the grant of options to purchase 1,000,000 stock options. The options granted may be either incentive stock options, if they meet the requirements of Section 422 of the Internal Revenue Code, or non-qualified stock options. As of April 28, 2003, options to purchase 297,399 shares were outstanding under this plan.
(d): 1998 Employee Stock Purchase Plan. The Stock Purchase Plan authorizes employee purchase of up to 200,000 shares of Isonics common stock. As of April 28, 2003, employees had purchased a total of 40,579 shares of Isonics common stock pursuant to this plan.

Except for the Director's Plan described below, we have not adopted any other stock option or stock appreciation rights plan. See "Compensation of Directors."

Options/SAR Grants in Last Fiscal Year

We did not grant any options or stock appreciation rights to executive officers named in the compensation table during the fiscal year ended April 30, 2001. We have not granted any stock appreciation rights to executives named in the compensation table in fiscal 2002 or subsequently. We granted stock options to executives during the year ended April 30, 2002 as follows:

	During the fiscal year ended April 30, 2002
	Number of Options	Exercise Price		Term
James E. Alexander	100,000	$	1.17	November 12, 2006
James E. Alexander	20,000	$	1.25	March 27, 2007
Boris Rubizhevsky	100,000	$	1.17	November 12, 2006
Boris Rubizhevsky	18,750	$	1.25	March 27, 2007
Daniel J. Grady	100,000	$	1.06	November 12, 2011
Daniel J. Grady	6,375	$	1.13	March 27, 2007
Stephen J. Burden	100,000	$	1.06	November 12, 2011
Stephen J. Burden	9,000	$	1.13	March 27, 2007
Hans Walitzki	200,000	$	1.01	December 1, 2006
Hans Walitzki	4,000	$	1.13	March 27, 2007
John V. Sakys	100,000	$	1.69	May 22, 2011
John V. Sakys	7,812	$	1.13	March 27, 2007

As of April 28, 2003, we have not granted any stock options to the executive officers named in the compensation table during the fiscal year ending April 30, 2003 except, on March 4, 2003, we granted options under the Executive's Plan to purchase 25,000 shares of our common stock to our vice president, John Sakys. These options are exercisable at $.90 per share for ten years from the date of grant. On the date of grant, our common stock closed at $.80 per share. In addition, on April 4, 2003 we granted options under the Executive's Plan to purchase 40,000 shares of our common stock to our vice president, Dr. Stephen Burden. These options are exercisable at $.90 per share for ten years from the date of grant.

In November 2001 we granted Hans Walitzki 200,000 shares of restricted common stock, which vests in different increments over five years. 20,000 of these shares have vested through January 31, 2003.

In January 2002 we granted Daniel Grady 25,000 shares of restricted common stock, which vested immediately.

Aggregated Option Exercises in Last Fiscal Year and Fiscal Year End Option Values

No officer exercised employee stock options during the fiscal year ended April 30, 2002 or subsequently.

The following table sets forth information regarding the year-end value of options being held by the Chief Executive Officer and the other such named officers and persons on April 30, 2002.

Name and Principal Position	Number of securities underlying unexercised options/stock appreciation rights at April 30, 2002 Exercisable/Unexercisable	Value of unexercised in-the-money options/stock appreciation rights at April 30, 2002 Exercisable/Unexercisable
James E. Alexander President & CEO(a)	65,000/80,000	$1,400/$5,600
Boris Rubizhevsky Senior Vice President(b)	61,250/80,000	$1,400/$5,600
Daniel J. Grady Vice President	249,340/80,000	$141,403/$14,400
Stephen J. Burden(d) Vice President	206,887/95,000	$16,490/$16,500
John V. Sakys(c) Vice President	32,812/75,000	$859/$0
Hans Walitzki Vice President	44,000/160,000	$9,640/$36,800

(a): Does not include 100,000 warrants obtained in March 2002 as consideration for pledging common stock as a guarantee relating to the issuance of our Series 2002 A Convertible Notes.
(b): Does not include 100,000 warrants obtained in March 2002 as consideration for pledging common stock as a guarantee relating to the issuance of our Series 2002 A Convertible Notes. Also does not include warrants obtained in connection with a financing transaction that expired July 29, 2002.
(c): Does not include 25,000 options granted to Mr. Sakys in March 2003.
(d): Does not include 40,000 options granted to Dr. Burden in April 2003.

Long Term Incentive Compensation Plans, and Defined Benefit and Actuarial Plans

Isonics has no long term incentive compensation plans, defined benefit plans, or actuarial plans.

Compensation of Directors

Isonics reimburses directors for travel and related expenses associated with Board of Directors, meetings. In January 2000, we agreed to compensate non-employee directors $2,000 for attending Board of Directors' meetings in person, and $500 for attending Board of Directors' meetings telephonically beginning January 1, 2000.

The 1998 Directors' Plan (the "Directors' Plan") authorized each person serving as a member of the Board who is not an employee of Isonics to receive options to purchase 20,000 shares of Isonics Common Stock when such person accepts his position as a Director and to receive an additional option to purchase 10,000 shares when such person is re-elected as a Director provided such person is not an employee of Isonics. The exercise price for the options is the Fair Market Value (as defined in the Executives' Plan) on the date such person becomes a director and the options are exercisable for five years from such date. The options granted under the Directors' Plan vest immediately upon the date of the grant. In the event a Director resigns or is not re-elected to the Board, failure to exercise the options in three months results in the options' termination prior to the expiration of their term. Although the Directors adopted the plan in 1998, the Board formalized the plan by resolution in January 2000.

Under the Directors' Plan the following individuals have been granted options through April 28, 2003:

Name		Shares Under Option		Exercise Price			Expiration
Lindsay Gardner		20,000 10,000 10,000 10,000 10,000 10,000		$ $ $ $ $ $	2.38 1.19 6.25 2.19 1.06 1.00		May 21, 2003 October 5, 2003 April 26, 2005 October 10, 2005 November 12, 2006 November 19, 2007
Richard Parker		20,000 10,000 10,000 10,000 10,000 10,000		$ $ $ $ $ $	1.66 1.19 6.25 2.19 1.06 1.00		August 17, 2003 October 5, 2003 April 26, 2005 October 10, 2005 November 12, 2006 November 19, 2007

We do not have any other arrangements pursuant to which we compensate the Directors for acting in their capacities as such.

CERTAIN RELATIONSHIPS AND RELATED TRANSACTIONS

We provide the following information regarding transactions among officers, directors and significant shareholders of Isonics during the most recent two fiscal years and during the subsequent fiscal year.

Pledging of Shares in Connection with Issuance of Series 2002A 4% Convertible Notes

In connection with the issuance of our Series 2002A 4% Convertible Notes on March 20, 2002, James E. Alexander (president, chief executive officer and a director of Isonics) and Boris Rubizhevsky (senior vice president and a director of Isonics) each pledged 500,000 common shares in order to secure our $1,000,000 obligation while we filed and obtained effectiveness for a Form S-3 registration statement for the benefit of the lenders as selling security holders. In consideration for pledging their shares, we issued both James E. Alexander and Boris Rubizhevsky a warrant to purchase 100,000 shares of common stock. Each warrant vested immediately, is exercisable at $1.25 per share and expires on

March 20, 2007. The pledge agreement terminated in June 2002 when we fulfilled our registration obligations.

Agreements With Affiliates of a Former Director

Larry Wells, formerly one of our directors, owns and controls Wells Investment Group, a privately-held corporation that provides financial consulting and other similar services to others. In October 2001 we entered into a consulting agreement with Wells Investment Group pursuant to which:

•: Wells Investment Group agreed to provide consulting services to Isonics, including performing due diligence, in connection with possible third party investment.
•: We paid Wells Investment Group $15,000 and issued to it warrants to purchase 50,000 shares of our common stock for $1.50 per share exercisable through October 5, 2005.

Our disinterested directors approved this agreement.

In November 2002, we paid $48,000 to Quivira Venture Partners, a California partnership of which Larry Wells is the managing partner. Quivira has used these funds to pay for expenses to obtain funding from certain non-U.S. investors. If Quivira is able to generate sufficient interest from these investors, we anticipate up to $6,000,000 may be available for investment in Isonics on terms that we will then have to negotiate. We have no obligation to accept any investment unless the terms are satisfactory to us.

Sale of International Process Research Corporation

Effective February 1, 2001, we sold IPRC to a limited liability company, Interpro Zinc LLC, in a management buy-out. Robert H. Cuttriss, Ph.D. (formerly an executive officer of Isonics) is the manager of Interpro Zinc LLC and a 25% owner. James E. Alexander (president, chief executive officer and a director of Isonics) and Boris I. Rubizhevsky (senior vice president and a director of Isonics) are also 25% owners of Interpro Zinc LLC and participated in the purchase of IPRC. Mr. Alexander and Mr. Rubizhevsky advised our board that they do not intend to participate actively in Interpro Zinc's activities.

Corporate Loans to Officers

In the past, Isonics has from time-to-time made loans to Messrs. Alexander and Rubizhevsky. In each case, the loans have been interest-bearing and have been repaid. The following table sets forth some information regarding these loans through April 30, 2001.

	James E. Alexander President & CEO			Boris Rubizhevsky Senior Vice President
Balance as of April 30, 2000	$	0.00		$	0.00
FY 2001 Borrowings(a)		100,000.00			100,000.00
FY 2001 Repayments(a)		100,000.00	(b)		100,000.00	(b)
Balance as of April 30, 2001	$	0.00		$	0.00

(a): Includes interest accrued and paid. Amounts are aggregated.
(b): The loans were made to the officers in March ($50,000 each) and April ($50,000 each), 2001, and were repaid, with interest at 6.6% per annum, on April 30, 2001.

There were no corporate loans to officers in fiscal 2002 or subsequently. The Sarbanes-Oxley Act of 2002 prohibits any further loans to corporate officers or directors.

Corporate Loans from Officers and Employees

None of our officers or directors extended loans to Isonics during the year ended April 30, 2001. On March 4, 2002, we borrowed $75,000 from Stephen Burden, our Vice President of Semiconductor Materials and Products. We repaid the loan in full, plus one month's interest at 12% per annum, on March 31, 2002. We have not borrowed any other funds from our officers or directors during the year ended April 30, 2002 or subsequently.

ISONICS' CAPITAL STOCK

Our authorized capital stock consists of 40,000,000 shares of Common Stock and 10,000,000 shares of Preferred Stock. As of April 28, 2003, there were outstanding:

•: 12,113,533 shares of Common Stock;
•: 963,666 shares of Series A Convertible Preferred Stock convertible into common stock at the rate of 1.67 shares of common stock for each share of Series A Convertible Preferred Stock;
•: 1,790,230 shares issuable upon exercise of options issued pursuant to our employee benefit plans; and
•: 3,442,610 shares issuable upon exercise of outstanding warrants

Common Stock

Subject to preferences that may be applicable to any Preferred Stock outstanding at the time, the holders of outstanding shares of Common Stock are entitled to receive dividends out of assets legally available therefore at such times and in such amounts as the Board of Directors may from time to time determine.

Each shareholder is entitled to one vote for each share of Common Stock held on all matters submitted to a vote of shareholders.

Cumulative voting for the election of directors is specifically authorized by the Bylaws. Under cumulative voting for the election of directors, upon a proper and timely request by a shareholder, each shareholder is entitled to cast a number of votes equal to the number of shares held multiplied by the number of directors to be elected. The votes may be cast for one or more candidates. Thus, under cumulative voting, a majority of the outstanding shares will not necessarily be able to elect all of the directors, and minority shareholders may be entitled to greater voting power with respect to election of directors than if cumulative voting did not apply.

The Bylaws provide that so long as we are a "listed corporation" as defined by applicable California law, there will not be cumulative voting in connection with the election of directors. Under §301.5(d) of the California Corporations Code, a "listed corporation" is defined to include a "corporation with outstanding shares listed on the New York Stock Exchange or the American Stock Exchange" and a "corporation with outstanding securities listed on the National Market System of the Nasdaq Stock Market (or any successor to that entity)." At the present time however, we are not a "listed company" as defined in California law, and as a result cumulative voting will continue to apply in connection with the election of directors.

The Common Stock is not entitled to preemptive rights and is not subject to conversion or redemption. Upon liquidation, dissolution or winding up of Isonics, the remaining assets legally available for distribution to shareholders, after payment of claims or creditors and payment of liquidation preferences, if any, on outstanding Preferred Stock, are distributable ratably among the holders of the Common Stock and any participating Preferred Stock outstanding at that time. Each outstanding share of Common Stock is fully paid and nonassessable.

Preferred Stock

Our outstanding Series A Preferred Stock is described above under "Security Ownership of Certain Beneficial Holders and Management." We do not have any other series of preferred stock outstanding.

Warrants

Our outstanding Class B Warrants and Class C Warrants are described above under "Securities Offered, the Selling Holders and the Plan of Distribution." Although we have other warrants outstanding, they are not included in this prospectus. These are generally described below in "Shares Available for Future Sale."

Transfer Agent

The transfer agent for our Common Stock is Continental Stock Transfer & Trust Co., 17 Battery Place, 8th Floor, New York, NY 10004.

MARKET FOR COMMON EQUITY AND RELATED STOCKHOLDER MATTERS

(a) Market Information. Our common stock is quoted on the Nasdaq SmallCap Market. As of April 28, 2003, we have outstanding 202,500 Class C Warrants, 430,110 registered Class B Warrants, as well as 1,350,000 restricted Class B Warrants. The Class B Warrants and the Class C Warrants are also quoted on the Nasdaq SmallCap Market. Currently the trading symbols for our outstanding securities are as follows:

Common Stock		"ISON"
Class B Warrants		"ISONL"
Class C Warrants		"ISONZ"

The following table sets forth the closing bid prices for the common stock (quotations reflect inter-dealer prices, without retail mark-up, mark-down or commission and may not represent actual transactions) from May 1, 2000 through April 28, 2003, as reported by OTC Bulletin Board, and beginning July 13, 2000, by the Nasdaq SmallCap Market.

		Quarter Ended
		Jul 31, 2002		Oct 31, 2002		Jan 31, 2003		Apr 30, 2003
								(through April 28, 2003)
Common Stock (ISON)
	High	$	1.25	$	1.04	$	1.55	$	1.25
	Low	$	.96	$	.70	$	.68	$	.70

		Quarter Ended
2002 fiscal year		Jul 31, 2001		Oct 31, 2001		Jan 31, 2002		Apr 30, 2002
Common Stock (ISON)
	High	$	1.85	$	1.49	$	1.18	$	1.25
	Low	$	1.14	$	.77	$	0.97	$	1.10

		Quarter Ended
2001 fiscal year		Jul 31, 2000		Oct 31, 2000		Jan 31, 2001		Apr 30, 2001
Common Stock (ISON)
	High	$	7.06	$	4.00	$	2.66	$	1.59
	Low	$	3.41	$	1.44	$	1.06	$	0.81

(b) Shareholders and Dividends. As of April 28, 2003, there were approximately 85 holders of record of our common stock. This does not include an indeterminate number of persons who hold our common stock in brokerage accounts and otherwise in "street name."

We have never declared or paid a cash dividend on our common stock. We presently intend to retain our earnings, if any, to fund development and growth of our business and, therefore, we do not anticipate paying cash dividends in the foreseeable future. Additionally, the certificate of designation for the Series A Convertible Preferred Stock contains restrictions on our ability to pay dividends to holders of our common stock.

The market price of our Common Stock could drop if substantial amounts of shares are sold in the public market or if the market perceives that such sales could occur. A drop in the market price could adversely affect holders of the stock and could also harm our ability to raise additional capital by selling equity securities. The securities that may be sold from time to time under this prospectus represent a market overhang.

SHARES AVAILABLE FOR FUTURE SALE

As of April 28, 2003, we had outstanding options and warrants for the purchase of up to approximately 5,232,840 shares of Common Stock at an average price of $1.56 per share, representing approximately 27.6% of our outstanding shares of Common Stock on a fully-diluted basis. Additionally, we have 963,666 shares of Series A Convertible Preferred Stock outstanding convertible to 1,609,322 shares of our Common Stock. The sum of these securities, 6,842,162 represent 36.1% of our outstanding shares of Common Stock on a fully-diluted basis.

The perception that these instruments may be exercised for, or converted into, Common Stock that then could be sold into the public market could adversely affect the market price of our Common Stock. In addition, we have entered into registration rights agreements with certain of our stockholders entitling them to include their shares of Common Stock in registration statements for securities filed by Isonics under the Securities Act of 1933, as amended. Awareness of the existence of these registration rights could lead to a perception that sales of the shares subject to the registration rights could occur, which could materially and adversely affect our stock price or could impair our ability to obtain capital through sales of equity securities. In addition, shares we have issued in private transactions over the past two years will become eligible for sale in the public market under SEC Rule 144.

These shares are restricted securities as defined in Rule 144. Under that rule, a stockholder who owns restricted shares that have been outstanding for at least one year is entitled to sell, within any three-month period, a number of restricted shares that does not exceed the greater of: (i) 1% of the then outstanding shares of Common Stock, or approximately 121,135 shares as of April 28, 2003; and (ii) an amount equal to the average weekly trading volume in the Common Stock during the four calendar weeks preceding the sale.

SECURITIES AND EXCHANGE COMMISSION POSITION ON INDEMNIFICATION
FOR SECURITIES ACT LIABILITIES

The Articles of Incorporation of Isonics require it to indemnify its officers, directors, employees and agents against certain liabilities incurred by them in those capacities if they acted in good faith and reasonably believed their conduct was in the best interests of Isonics or not opposed to it. Isonics is also required to indemnify a person who is or was a director, officer, employee or agent of Isonics and who was successful, on the merits or otherwise, in defense of any proceeding to which he was a party, against reasonable expenses, which include attorneys' fees, incurred by him or her in connection with the proceeding.

Insofar as indemnification for liabilities arising under the Securities Act of 1933 may be permitted to directors, officers and controlling persons of Isonics under the provisions discussed in the previous

paragraph, or otherwise, Isonics has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in that Act and is, therefore, unenforceable.

EXPERTS

The consolidated balance sheets as of April 30, 2002 and 2001, and the consolidated statements of operations, stockholders' equity, and cash flows for the years then ended have been audited by Grant Thornton LLP, independent certified public accountants, as set forth in their report thereon appearing elsewhere herein and in the Registration Statement, and are included in reliance upon such report given upon the authority of such firm as experts in accounting and auditing.

LEGAL MATTERS

Arter & Hadden, LLP, Los Angeles, California, has passed on the validity of the shares of Common Stock offered hereby under California law, but has not otherwise participated in the preparation of this prospectus or the registration statement of which this prospectus is a part.

HOW TO OBTAIN ADDITIONAL INFORMATION

We file annual and quarterly reports, proxy statements, and other information with the Securities and Exchange Commission (the "SEC"). You may read and copy any document we have filed with the SEC in its public reference room at 450 Fifth Street N.W. Washington, D.C. 20549. You may obtain information on the operation of the public reference room by calling the SEC at 1-800-432-0330. The SEC maintains a World Wide Web site on the Internet at http://www.sec.gov that contains reports, proxy and information statements, and other information regarding companies, including those that Isonics files electronically with the SEC.

We also furnish Annual Reports to our shareholders that contain audited financial information.

This prospectus is part of a registration statement we have filed with the SEC relating to an offer of our Common Stock described in this prospectus. As permitted by the SEC rules, this prospectus does not contain all of the information contained in the registration, accompanying exhibits and schedules we file with the SEC. You may refer to the registration, the exhibits and schedules for more information about our Company and our Common Stock. The registration statement, exhibits, and schedules are also available at the SEC's public reference rooms or through its EDGAR database on the Internet.

You should rely only on the information contained or incorporated by reference in this prospectus. Isonics has not authorized anyone to provide you with information that is different from what is contained in this prospectus. You should not assume that the information contained in this prospectus is accurate as of any date other than the date set forth on the front cover of this prospectus.

If you have questions or require additional information concerning the Class B or Class C Warrants described herein, please contact the following person at the address and telephone number stated below:

John Sakys
Chief Financial Officer
Isonics Corporation
5906 McIntyre Street
Golden, CO 80403
Telephone No.: (303) 279-7900
Facsimile No.: (303) 279-7300
e-mail: jsakys@isonics.com

PART II: INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 24 INDEMNIFICATION OF DIRECTORS AND OFFICERS

The Articles of Incorporation of Isonics include a provision that eliminates to the fullest extent permitted by California law the personal liability of its directors to Isonics and its shareholders for monetary damages for breach of the directors' fiduciary duties. This limitation has no effect on a director's liability

(i): for acts or omissions that involve intentional misconduct or a knowing and culpable violation of law,
(ii): for acts or omissions that a director believes to be contrary to the best interests of Isonics or its shareholders or that involved the absence of good faith on the part of the director,
(iii): for any transaction from which the director derived an improper personal benefit,
(iv): for acts or omissions that show a reckless disregard for the director's duty to Isonics or its shareholders in circumstances in which the director was aware, or should have been aware, in the ordinary course of performing a director's duties, of a risk of serious injury to Isonics or its shareholders,
(v): for acts or omissions that constitute an unexcused pattern of inattention that amounts to an abdication of the director's duty to Isonics or its shareholders,
(vi): under Section 310 of the California Corporations Code (the "California Code") concerning contracts or transactions between Isonics and a director or
(vii): under Section 316 of the California Code concerning directors liability for improper dividends, loans and guarantees.

The provision does not extend to acts or omissions of a director in his capacity as an officer. Further, the provision will not affect the availability of injunctions and other equitable remedies available to Isonics' shareholders for any violation of a director's fiduciary duty to Isonics or its shareholders.

The Articles of Incorporation further authorize Isonics to indemnify its agents (as defined in Section 317(a) of the California Code which includes directors and officers) through Bylaw provisions, agreements with agents, votes of shareholders or disinterested directors or otherwise, to the fullest extent permissible under California law. Pursuant to this provision, the Bylaws of Isonics provide for indemnification of directors and officers. The Bylaws also permit Isonics to enter into indemnity agreements with individual directors, officers, employees, and other agents. Isonics intends to enter into such agreements with its directors and executive officers effective upon the closing of this offering. These agreements, together with the Bylaws and Articles of Incorporation, may require Isonics, among other things, to indemnify directors or officers against certain liabilities that may arise by reason of their status or service as directors (other than liabilities resulting from willful misconduct of a culpable nature), to advance expenses to them as they are incurred, provided that they undertake to repay the amount advanced if it is ultimately determined by a court that they are not entitled to indemnification, and to obtain and maintain directors' and officers' insurance if available on reasonable terms.

In addition to the rights to indemnification provided under California law, in the Articles of Incorporation and in the Bylaws, the 1996 Stock Option Plan (the "Plan") provides indemnification to members of the Board of Directors, officers, or employees of Isonics to whom authority to act for the Board of Directors in connection with that Plan is delegated shall be indemnified against all reasonable expenses, including attorneys' fees, actually and necessarily incurred in defense of any proceeding to which he or she is made a party because of any action allegedly taken or alleged failure to act in connection with the Plan, and against amounts paid in settlement (if approved by independent legal

counsel), or in satisfaction of any judgment in such proceeding, unless the director, officer, or employee, as the case may be, is adjudged to have behaved in bad faith, in a grossly negligent manner, or with intentional misconduct as to duties.

Isonics currently has directors' and officers' liability insurance.

At present, there is no pending litigation or proceeding involving a director, officer or employee of Isonics pursuant to which indemnification is sought, nor is Isonics aware of any threatened litigation that may result in claims for indemnification.

Section 317 of the California Code and the Bylaws of Isonics provide for the indemnification of officers, directors and other corporate agents in terms sufficiently broad to indemnify such persons, under certain circumstances, for liabilities (including reimbursement of expenses incurred) arising under the Securities Act. Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons pursuant to the foregoing provisions, or otherwise, Isonics has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable.

Reference is made to the following documents filed as exhibits to this Registration Statement regarding relevant indemnification provisions described above and elsewhere herein:

Document		Exhibit Number
Registrant's Articles of Incorporation		3.01
Registrant's Bylaws		3.02
Form of Indemnity Agreement		10.09

ITEM 25. OTHER EXPENSES OF ISSUANCE AND DISTRIBUTION.

The following table sets forth the costs and expenses to be paid in connection with the sale of the shares of common stock being registered hereby. The Selling Shareholders will pay only those expenses directly related to the transfer of their securities. All amounts are estimates except for the Securities and Exchange Commission registration fee and the NASD filing fee.

Securities and Exchange Commission registration fee	$	553
NASD filing fee		—
Accounting fees and expenses		7,000
Legal fees and expenses		10,000
Printing fees and expenses		15,000
Blue-sky fees and expenses		5,000
Transfer agent and registrar fees and expenses		5,000
Miscellaneous		4,447
Fees to be paid by Selling Security Holders		—

Total to be paid by Isonics	$	47,000

ITEM 26 RECENT SALES OF UNREGISTERED SECURITIES.

Employee and Director Offerings

Employee Offerings

(a): Securities Sold. During the past three years, we have issued shares of Common Stock, and options to purchase shares of Common Stock pursuant to its existing employee benefit plans. As noted in

the following discussion, portions of some of these plans have been included within registration statements on Form S-8. These employee benefit plans are as follows:

1996 Stock Option Plan which has been terminated, but as to which, there are options outstanding. The options granted pursuant to this plan are subject to a registration statement on Form S-8, Commission file no. 333-74339 which has been incorporated into file no. 333-74339 pursuant to Rule 429.

1996 Executives' Equity Incentive Plan (the "Executives' Plan") authorized the grant of options to purchase 225,000 stock options, which after being adjusted for stock splits that occurred following the adoption of the plan resulted in 570,000 shares. The options granted may be either incentive stock options if they meet the requirements of Section 422 of the Internal Revenue Code, or non-qualified stock options. The directors approved this plan in September 1996 and the shareholders in October 1996. The Executives' Plan was amended to increase the number of shares to 2,000,000. This increase was approved by the shareholders in November 2001 after a previous amendment increasing the number of shares to 1,000,000 had been approved in October 2000. Of these, 1,000,000 shares are subject to a registration statement on Form S-8, Commission file no. 333-52514, which incorporated the shares included in the previous registration statement on Form S-8, Commission file no. 333-74339 pursuant to Rule 429. We have issued 91,520 options for shares that are not included within existing registration statements.

1996 Equity Incentive Plan (the "Employees' Plan") authorized the grant of options to purchase 50,000 stock options, which after being adjusted for stock splits that occurred following the adoption of the plan resulted in 150,000 shares The options granted may be either incentive stock options if they meet the requirements of Section 422 of the Internal Revenue Code, or non-qualified stock options. The directors approved this plan in September 1996 and the shareholders in October 1996. The Employees' Plan was amended to increase the number of shares to 1,000,000. This increase was approved by the shareholders November 2001 after a previous amendment increasing the number of shares to 500,000 had been approved in October 2000. Of these, 500,000 shares are subject to a registration statement on Form S-8, Commission file no. 333-52514, which incorporated the shares included in the previous registration statement on Form S-8, Commission file no. 333-74339 pursuant to Rule 429. Isonics has not issued any options for shares not included within the existing registration statements.

1998 Employee Stock Purchase Plan (the Stock Purchase Plan") authorized employee purchase "of up to 200,000 shares of Isonics Common Stock." The directors approved this plan in August 1998, and the shareholders in October 1998. The shares included in this plan are subject to a registration statement on Form S-8, Commission file no. 333-74339 which has been incorporated into file no. 333-74339 pursuant to Rule 429.

As of April 28, 2003, options to purchase a total of 994,062 shares, 297,399 shares, and 358,769 shares respectively, were outstanding under the Executives' Plan, Employees' Plan, and 1996 Stock Option Plan, and options to purchase 708,480, 643,421, and 0 shares, respectively, remained available for grant.

Director Offerings

(a) The 1998 Directors' Plan (the "Directors' Plan") authorized each person serving as a member of the Board who is not an employee of Isonics to receive options to purchase 20,000 shares of Isonics Common Stock when such person accepts his position as a Director and to receive an additional option to purchase 10,000 shares when such person is re-elected as a Director provided such person is not an employee of Isonics. The exercise price for the options is the Fair Market Value (as defined in the Executives' Plan) on the date such person becomes a director and the options are exercisable for five years from such date. The options granted under the Directors' Plan vest immediately upon the date of

the grant. In the event a Director resigns or is not re-elected to the Board, failure to exercise the options in three months results in the options' termination prior to the expiration of their term. Although the Directors adopted the plan in 1998, the Board formalized the plan by resolution in January 2000. The Directors' Plan is not included within any registration statement.

During the last three years, the following persons have been granted options under the Directors' Plan:

Name	Shares Under Option	Exercise Price		Expiration
Lindsay Gardner	10,000	$	6.25	April 26, 2005
	10,000	$	2.19	October 10, 2005
	10,000	$	1.06	November 12, 2006
	10,000	$	1.00	November 19, 2007
Richard Parker	10,000	$	6.25	April 26, 2005
	10,000	$	2.19	October 10, 2005
	10,000	$	1.06	November 12, 2006
	10,000	$	1.00	November 19, 2007
Larry Wells*	10,000	$	6.25	January 13, 2003
	10,000	$	2.19	January 13, 2003
	10,000	$	1.06	January 13, 2003

*: Mr. Wells resigned as a director as of October 13, 2002. As a result of his resignation, all of the options granted to Mr. Wells have expired.

Dr. Walitzki

(a): In connection with his employment by Isonics in December 2001, Isonics issued 200,000 shares of common stock to Dr. Walitzki. These shares were subject to certain vesting requirements, and 20,000 have vested as of April 28, 2003. At the same time, Isonics also granted Dr. Walitzki options to purchase 204,000 shares of common stock, of which 84,000 are vested as of April 28, 2003 and are currently exercisable. These options were not issued pursuant to any of the plans described above.

Other Non-Plan Issuances to Officers or Directors

None

Applicable to the Offerings to the Employees, Directors, and Dr. Walitzki Offering

(b): Names of Principal Underwriters. None
(c): Consideration Received. The stock options and bonuses issued outside of Isonics' employee benefit plans were, for the most part, issued in consideration of services rendered and did not (therefore) involve the offer or sale of securities. In some cases they were issued to induce the performance of services in the future.
(d): Exemption Claimed. Many of the securities referred to in this section were not offered or sold in a manner that constituted a "sale" of securities as that term is defined in Section 2(a)(3) of the Securities Act. Where a "sale" occurred, the transactions were exempt from registration under the Securities Act of 1933, as amended by reason of Sections 4(2) and 4(6) of the Securities Act of 1933 or Rule 701.
(e): There are no conversion rights or exchange rights associated with the common stock. To the extent vested, the options are exercisable to purchase shares of common stock as described above.

(f): Use of Proceeds. Where proceeds were received, the proceeds were utilized for working capital purposes.

Institut of Umwelttechnologien GmbH

In December 2002 we acquired certain isotope-based trace detection technology to be used to detect explosives and chemical and biological weapons from IUT, an entity in which we hold a 6% ownership interest. We issued to IUT 250,000 shares of restricted common stock for the isotope-based trace detection technology. In addition, we granted IUT a 15% ownership interest in a newly created subsidiary that will own and commercialize the trace detection technology. The restricted common stock was valued at $272,500 based upon the closing price of our common stock on December 4, 2002.

(a) The transaction was completed on December 4, 2002. We issued 250,000 shares of our restricted common stock to IUT, a German corporation. All of the shareholders of IUT (other than Isonics, which owns 6% of IUT) are neither citizens nor residents of the United States.

(b) The transaction occurred without the use of any underwriters or finders. The only person who received securities from us in this transaction was IUT.

(c) The restricted common stock was not sold for cash. As described above, we issued the common stock as partial consideration for the exclusive rights with respect to certain technology valued at $272,500.

(d) We relied on the exemption from registration provided by Sections 4(2) under the Securities Act of 1933 for this transaction, as well as Regulation S for offshore transactions. We did not engage in any public advertising or general solicitation in connection with this transaction that was in negotiation for a substantial period of time with IUT. We provided IUT with disclosure of all aspects of our business, including providing them with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that IUT obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for the isotope-based detection technology.

(e) There are no conversion rights or exchange rights associated with the common stock.

(f) We did not receive any proceeds from the issuance of the restricted common stock to IUT and, therefore, we have no use of proceeds.

Park Capital Securities, LLC

In November 2002, we entered into an agreement with Park Capital Securities, LLC whereby we issued a common stock warrant (valued at $261,000 using the Black-Scholes pricing model) to purchase 300,000 shares of common stock at $1.00 per share, for investment banking and consulting services. The common stock warrant vested immediately, expires in November 2005 and will be expensed to consulting services over the life of the agreement. The agreement terminates on December 31, 2003. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective November 22, 2002. We issued a warrant to acquire 300,000 shares of restricted common stock as described above.

(b) No underwriters were involved in the transaction. The only entities who received securities from us in this transaction was Park Capital Securities, LLC.

(c) The securities were not sold for cash. The securities were issued to Park Capital Securities as part of the consideration for Park Capital Securities entering into the agreement and providing the services thereunder.

(d) The issuance of the shares was accomplished pursuant to the exemptions from registration contained in Sections 4(2) and 4(6) of the Securities Act of 1933. We did not engage in any public advertising or general solicitation in connection with this transaction. We provided Park Capital Securities with disclosure of all aspects of our business, including providing Park Capital Securities and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of Park Capital Securities obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for services to be provided.

(e) The warrants are exercisable to purchase shares of common stock of Isonics until November 21, 2005 at $1.00 per share.

(f) We received no proceeds from the issuance of these shares and, therefore, we have no use of proceeds.

Second Transaction with Investor Relations Services, Inc.

Effective July 1, 2002, we agreed to pay 250,000 shares of our restricted common stock as consideration for consulting services consisting of financial advisory, strategic business planning and investor and public relations to be provided by IRSI of New Smyrna Beach, Florida. IRSI never rendered any such services and we have terminated the agreement and have advised IRSI that the Company has no obligation to issue the shares. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction and the rescission were both completed effective July 1, 2002. The contract called for the issuance of 250,000 shares of our restricted common stock to IRSI, but we terminated that obligation, although IRSI has advised us that it disputes the termination.

(b) The transaction occurred without the use of any underwriters or finders. The only person who had the contractual right to receive securities from us in this transaction was IRSI.

(c) The restricted common stock was not sold for cash. As described above, we contracted to issue the common stock in consideration for consulting services.

(d) We relied on the exemption from registration provided by Sections 4(2) and 4(6) under the Securities Act of 1933 for this transaction. We did not engage in any public advertising or general solicitation in connection with this transaction that was in negotiation for more than two months. We provided IRSI with disclosure of all aspects of our business, including providing IRSI and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of IRSI obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for services to be provided.

(e) There are no conversion rights or exchange rights associated with the common stock.

(f) We have not received and do not expect to receive any proceeds from the issuance of the restricted common stock to IRSI and, therefore, we have no use of proceeds.

Third Transaction with vFinance, Inc.

On June 10, 2002, we entered into an agreement with vFinance of Boca Raton, Florida, a member of the National Association of Securities Dealers, Inc. The agreement provided for the issuance to vFinance of 25,000 shares of common stock and a warrant to purchase 200,000 shares of common stock

in exchange for vFinance's agreement to provide financial advisory and other services to Isonics. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective June 10, 2002. We issued 25,000 shares of restricted common stock and a warrant to acquire 200,000 shares of common stock.

(b) No underwriters were involved in the transaction. The only entities who received securities from us in this transaction was vFinance, although vFinance transferred its right to a portion of those shares to persons who are directors or executive officers of vFinance.

(c) The securities were not sold for cash. The securities were issued to vFinance as part of the consideration for vFinance entering into the agreement and providing the services thereunder.

(d) The issuance of the shares was accomplished pursuant to the exemptions from registration contained in Sections 4(2) and 4(6) of the Securities Act of 1933. We did not engage in any public advertising or general solicitation in connection with this transaction. We provided vFinance with disclosure of all aspects of our business, including providing vFinance and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of vFinance obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for services to be provided.

(e) There are no conversion rights or exchange rights associated with the shares. The warrants are exercisable to purchase shares of common stock of Isonics until June 10, 2006 at $2.32 per share.

(f) We received no proceeds from the issuance of these shares and, therefore, we have no use of proceeds.

Second Transaction with vFinance, Inc.—Convertible Loan.

Effective March 20, 2002, we borrowed $1,000,000 from five persons who are accredited investors. In exchange for the loan, we issued our Series 2002A 4% Convertible Promissory Notes due March 1, 2003 to these persons. We had the ability to repay the principal amount of these notes in cash or in shares of our common stock (at $1.00 per share) if the shares were registered. To the extent that we repaid the notes in cash, we were obligated to issue warrants to the holder entitling them to purchase shares of our common stock at $1.00 per share for each $1.00 of cash repayment. Each note was convertible into shares of our common stock at $1.00 per share, and various obligations of the notes were guaranteed by James E. Alexander (our president) and Boris Rubizhevsky (our senior vice president). They each pledged 500,000 shares of our common stock they own to secure these obligations (a total of 1,000,000 shares). We filed and obtained effectiveness for a Form S-3 registration statement for the benefit of the lenders as selling securityholders. We also issued each lender a warrant to acquire one share of our restricted common stock for each $5.00 loaned to us and we issued to our president and our senior vice president a warrant to acquire 100,000 shares of common stock each. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was completed March 20, 2002. We issued $1,000,000 of convertible 4% promissory notes, warrants to purchase 200,000 shares to five accredited investors and warrants to purchase 200,000 shares to our president and senior vice president.

(b) The transaction occurred using vFinance, as an underwriter. We paid them a 10% commission ($100,000) and warrants to purchase 100,000 shares at $1.25 per share, exercisable until March 20, 2005. vFinance assigned a portion of these warrants to certain of its directors and executive officers.

(d) We relied on the exemption from registration provided by Sections 4(2) and 4(6) under the Securities Act of 1933 for this transaction. We did not engage in any public advertising or general solicitation in connection with this transaction. We provided the lenders with disclosure of all aspects of our business, including providing the lenders with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and each of the lenders obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities.

(e) The notes were convertible at the holders' option into shares of our common stock at $1.00 per share (subject to certain dilution adjustment provisions). The warrants to the accredited investors are exercisable to purchase shares of common stock of Isonics until March 20, 2005 at $1.25 per share. The warrants to our president and senior vice president are exercisable to purchase shares of common stock of Isonics until March 20, 2007 at $1.25 per share.

(f) We received a net of approximately $890,000 from the escrow arrangement by which we completed the transaction. We intend to use the proceeds of the loan transaction primarily to finance Isonics' silicon-on-insulator operations, to pay our expenses of the transaction (approximately $60,000), to repay some past-due expenses (including salaries to officers of approximately $120,000), and for general working capital.

HS-Consult GmbH.

On January 1, 2002, we entered into an agreement with HS-Consult by which HS-Consult agreed to assist Chemotrade in buying and selling isotope products. This agreement included a cash payment and the issuance of warrants to acquire shares of our restricted common stock. HS-Consult is a German company, and the principals of HS-Consult include Herbert Hegener, formerly an executive officer of Chemotrade and a significant employee of Isonics. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective January 1, 2002. We issued a warrant to acquire 50,000 shares of our restricted common stock.

(b) No underwriters were involved in the transaction. The only entity that received securities from us in this transaction was a German entity, HS-Consult.

(c) The securities were not sold for cash. The warrants were issued to HS-Consult as part of the consideration for HS-Consult providing services to Chemotrade.

(d) The issuance of the warrants was accomplished pursuant to the exemptions from registration contained in Sections 4(2) and 4(6) of the Securities Act of 1933 and Regulation S inasmuch as HS-Consult is not a US Person. We did not engage in any public advertising or general solicitation in connection with this transaction. HS-Consult had disclosure of all aspects of our business at the time it entered into the agreement with us, including our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management of HS-Consult obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for services to be provided.

(e) There are no conversion rights or exchange rights associated with the warrants. The warrants are exercisable to purchase shares of common stock of Isonics until December 31, 2004, at $1.20 per share.

(f) Isonics received no proceeds from the issuance of these warrants and, therefore, we have no use of proceeds.

First Transaction with vFinance, Inc.

In January 2002, we entered into a Management and Investment Banking Agreement with vFinance. The investment banking agreement provided for the issuance to vFinance of warrants to purchase 50,000 shares of common stock at $1.50 per share, and a fee of $5,000 per month in exchange for vFinance's agreement to provide financial advisory and other services to Isonics. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective March 22, 2002. We issued a warrant to acquire 50,000 shares of its common stock.

(b) No underwriters were involved in the transaction. The only entities who received securities from us in this transaction was vFinance and certain directors and executive officers of vFinance (who received the warrants by assignment from vFinance).

(c) The securities were not sold for cash. The securities were issued to vFinance as part of the consideration for vFinance entering into the investment banking agreement and providing the services thereunder.

(d) The issuance of the warrants was accomplished pursuant to the exemptions from registration contained in Sections 4(2) and 4(6) of the Securities Act of 1933. We did not engage in any public advertising or general solicitation in connection with this transaction. We provided vFinance with disclosure of all aspects of our business, including providing vFinance and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of vFinance obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for services to be provided.

(e) There are no conversion rights or exchange rights associated with the warrants. The warrants are exercisable to purchase shares of common stock of Isonics until March 20, 2005 at $1.50 per share.

(f) We received no proceeds from the issuance of these warrants and, therefore, we have no use of proceeds.

First Transaction with Investor Relations Services, Inc.

Effective December 18, 2001, we paid 500,000 shares of our restricted common stock as consideration for consulting services consisting of financial advisory, strategic business planning and investor and public relations to be provided by IRSI, New Smyrna Beach, Florida. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was completed effective December 18, 2001. We issued 500,000 shares of our restricted common stock to IRSI.

(b) The transaction occurred without the use of any underwriters or finders. The only person who received securities from us in this transaction was IRSI.

(c) The restricted common stock was not sold for cash. As described above, we issued the common stock in consideration for consulting services being provided by IRSI through December 31, 2002.

(e) There are no conversion rights or exchange rights associated with the common stock.

(f) We have not received any proceeds from the issuance of the restricted common stock to Investor Relations Services and, therefore, we have no use of proceeds.

Silicon Evolution, Inc.

Effective November 13, 2001, we issued 500,000 shares of our restricted common stock to SEI in exchange for 500,000 shares of our Series B Convertible Preferred Stock (the "Series B Stock") previously issued to SEI as reported in our Form 8-K reporting an event of September 14, 2001. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was completed effective November 13, 2001. We issued 500,000 shares of our restricted common stock to SEI.

(b) The transaction occurred without the use of any underwriters or finders. The only person who received securities from us in this transaction was SEI.

(c) The restricted common stock was not sold for cash. As described above, we issued the common stock in conversion of the Series B Stock.

(d) We relied on the exemption from registration provided by Section 3(a)(9) under the Securities Act of 1933 for this transaction. Furthermore, inasmuch as the conversion occurred automatically, with no discretion on the part of SEI, the transaction did not constitute a "sale" of securities as the term "sale" is defined in Section 2(a)(3) of the 1933 Act. We did not engage in any public advertising or general solicitation in connection with this transaction that was in negotiation for more than two months. We had previously provided SEI with disclosure of all aspects of our business, including providing SEI and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of SEI obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for the license agreement.

(e) There are no conversion rights or exchange rights associated with the common stock.

(f) We have not received any proceeds from the issuance of the restricted common stock to SEI and, therefore, we have no use of proceeds.

Silicon Quest International, Inc.

Effective December 19, 2001, we issued warrants to purchase 100,000 shares of our restricted common stock as consideration for SQI entering into an alliance with Isonics for the manufacturing, marketing and sales of SOI wafers with SQI. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective December 19, 2001. We issued 100,000 common stock warrants.

(b) No underwriters were involved in the transaction. The only person who received securities from us in this transaction was SQI.

(c) The securities were not sold for cash. The securities were issued to SQI as consideration for SQI entering into a letter of intent with Isonics to form an alliance for the manufacturing, marketing and sale of SOI wafers.

(d) The issuance of the warrants was accomplished pursuant to the exemptions from registration contained in Sections 4(2) and 4(6) of the Securities Act of 1933. We did not engage in any public advertising or general solicitation in connection with this transaction that was in negotiation for more than six weeks. We provided SQI with disclosure of all aspects of our business, including providing SQI and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of SQI obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for the alliance agreement.

(e) There are no conversion rights or exchange rights associated with the warrants. The warrants are exercisable one year after the issuance date to purchase shares of common stock of Isonics until December 19, 2004 at $1.50 per share.

(f) We received no proceeds from the issuance of these warrants and, therefore, we have no use of proceeds.

Brean Murray & Co.

Effective December 11, 2001, we issued warrants to purchase 100,000 shares of our restricted common stock as consideration for Brean Murray & Co ("Brean Murray"). entering into an agreement with Isonics for investment banking and strategic advisory services. We cancelled this agreement (including the 100,000 common stock warrants) in late January 2002. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective December 11, 2001. We issued and subsequently cancelled 100,000 common stock warrants.

(b) No underwriters were involved in the transaction. The only person who received securities from us in this transaction was Brean Murray.

(c) The securities were not sold for cash. The securities were issued to Brean Murray as partial consideration for Brean Murray entering into an agreement to provide investment banking and strategic advisory services to Isonics.

our business, including providing Brean Murray and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of Brean Murray obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for services to be provided.

(e) There are no conversion rights or exchange rights associated with the warrants except for the "cashless exercise" provision described below. The warrants are exercisable to purchase shares of common stock of Isonics until December 2006 at $1.50 per share. The warrant agreement does provide for a "cashless exercise" of the warrants and, therefore, Isonics may not receive cash proceeds should the holder exercise the warrants pursuant to this cashless exercise provision. The warrants were subsequently cancelled in January 2002.

(f) We received no proceeds from the issuance of these warrants and, therefore, we have no use of proceeds.

Wells Investment Group

Effective October 15, 2001, we issued warrants to purchase 50,000 shares of our restricted common stock as consideration for Wells Investment Group ("WIG") entering into a consulting agreement with Isonics to perform certain due diligence and other services in connection with possible third party investment. WIG is owned and controlled by Larry G. Wells, formerly a director of Isonics. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was effective October 15, 2001. We issued 50,000 common stock warrants.

(b) No underwriters were involved in the transaction. The only person who received securities from us in this transaction was WIG.

(c) The securities were not sold for cash. The securities were issued to WIG as partial consideration for Wells Investment Group entering into a consulting agreement with Isonics to perform certain due diligence and other services in connection with possible third party investment.

(d) The issuance of the warrants was accomplished pursuant to the exemptions from registration contained in Sections 4(2) and 4(6) of the Securities Act of 1933. We did not engage in any public advertising or general solicitation in connection with this transaction that was in negotiation for more than six weeks. We provided WIG with disclosure of all aspects of our business, including providing WIG and its management with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the management and the board of directors of WIG obtained all information regarding Isonics they requested, received answers to all questions they posed and otherwise understood the risks of accepting our securities in exchange for services to be provided. In addition, WIG is controlled by Larry G. Wells, a former director of Isonics.

(e) There are no conversion rights or exchange rights associated with the warrants except for the "cashless exercise" provision described below. The warrants are exercisable to purchase shares of common stock of Isonics until October 15, 2005 at $1.50 per share. The warrant agreement does provide for a "cashless exercise" of the warrants and, therefore, Isonics may not receive cash proceeds should the holder exercise the warrants pursuant to this cashless exercise provision.

(f) We received no proceeds from the issuance of these warrants and, therefore, we have no use of proceeds.

Issuance In Exchange for Patent Rights

During January 2001, we paid 75,000 shares of our restricted common stock as consideration for patent rights from three non-U.S. persons. The following sets forth the information required by Item 701 in connection with that transaction:

(a) The transaction was completed during January 2001. We issued 75,000 shares of our restricted common stock to three persons who are not citizens or residents of the United States.

(b) The transaction occurred without the use of any underwriters or finders. The only person who received securities from us in this transaction were the three non-U.S. persons.

(c) The restricted common stock was not sold for cash. As described above, we issued the common stock in consideration for certain patent rights for processes for the recovery and recycling of zinc. The patent rights were valued at $131,000. On February 1, 2001, we sold IPRC and transferred the patent rights to Interpro Zinc, LLC.

(d) We relied on the exemption from registration provided by Sections 4(2) under the Securities Act of 1933 for this transaction, as well as Regulation S for offshore transactions. We did not engage in any public advertising or general solicitation in connection with this transaction that was in negotiation for more than six months with each of the three non-U.S. persons. We provided each of the vendors of the patent rights with disclosure of all aspects of our business, including providing them with our reports filed with the Securities and Exchange Commission, our press releases, access to our auditors, and other financial, business, and corporate information. Based on our investigation, we believe that the vendors of the patent rights obtained all information regarding Isonics they requested, received answers to all questions they posed, and otherwise understood the risks of accepting our securities in exchange for the respective patent rights.

(e) There are no conversion rights or exchange rights associated with the common stock.

(f) We did not receive any proceeds from the issuance of the restricted common stock to the vendors and, therefore, we have no use of proceeds.

December 2000 Unit Issuance

(a): Securities Sold. The sale, as described below, occurred on December 13, 2000. The securities sold as units consisted of one share of Common Stock and two Class B Redeemable Common Stock Warrants. The total number of units sold were 337,500, with the possibility that up to an additional 112,500 units might be issued based on future market conditions. The agreement associated with this private placement required that we register the common stock and the common stock underlying the Class B common stock warrants by June 14, 2001 or certain penalty provisions would apply. As we were unable to complete the effective registration of such shares by June 14, 2001, on July 26, 2001, we rectified the situation by issuing an additional 112,504 shares of common stock and an additional 675,000 Class B warrants to the accredited investors of the private placement. The following information applies to both the original December 2000 issuance and the July 2001 adjustment.
(b): Underwriters and other purchasers. No underwriters, agents, or placement agents participated in the private placement.
(c): Purchase Price. The Units were offered and sold to nine accredited investors for cash payments totaling $675,000 ($2.00 per unit). To the extent additional units are issued, the total price per unit will be reduced.

(d): Exemption Claimed. The transactions were exempt from registration under the Securities Act of 1933, as amended by reason of Sections 4(2) and 4(6) of the Securities Act of 1933 for transactions not involving a public offering and for transactions with accredited investors only.
(e): Terms of Conversion or Exercise. The Class B Warrants are exercisable on the terms set forth herein.
(f): Use of Proceeds. Working capital purposes.

December 1999 Warrant Issuance

(a): Securities Sold. The sale, as described below, occurred on December 1, 1999. The securities sold consists of one restricted warrant (A Warrant to purchase 4,000,000 shares of restricted Common Stock issued at an exercise price of $3.75 per share.
(b): Underwriters and other purchasers. No underwriters, agents, or placement agents participated in the private placement.
(c): Purchase Price. The warrant was issued to a single accredited investor as consideration for the purchase of 200 kilograms of silicon-28 pursuant to an Asset Purchase Agreement executed between Isonics and Eagle-Picher, an accredited investor.
(d): Exemption Claimed. The transactions were exempt from registration under the Securities Act of 1933, as amended by reason of Sections 4(2) and 4(6) of the Securities Act of 1933.
(e): Terms of Conversion or Exercise. Terms of conversion or exercise are as follows:

The Warrant granted to Eagle-Picher may be exercised to purchase 4,000,000 shares of restricted Common Stock issued on a warrant-for-share basis with Isonics Common Stock (subject to dilution adjustment) for a purchase price of $3.75 per share through the expiration date, May 30, 2003. On March 15, 2000, Eagle-Picher notified us of its exercise of the Warrant pursuant to a "net exercise" provision, which will result in Eagle-Picher acquiring 3,130,435 shares of our Common Stock. We issued the warrants to Eagle-Picher in consideration of its obligation to deliver 200 kilograms of silicon-28 to us. We canceled the shares on February 20, 2001. On July 24, 2002, we entered into an agreement with Eagle-Picher whereby we settled all disputes relating to the issuance of these shares and other matters. As a result of the settlement, no shares were ultimately issued to Eagle-Picher.

We also entered into a registration rights agreement relating to the shares of Common Stock underlying the Warrant.

(f): Use of Proceeds. Isonics intends to use the 200 kilograms of silicon-28 from the issuance of the Warrant for the continued development and commercialization of silicon-28 wafers for the semiconductor industry.

July 1999 Private Placement

(a)

Securities Sold. The sale of securities, as described below, occurred on July 29, 1999. The securities sold include:

(i): 1,830,000 shares of restricted Series A Convertible Preferred Stock, created by filing an amended certificate of determination of preferences and rights (the "Certificate of Determination") with the California Secretary of State; and
(ii): 1,830,000 restricted warrants to purchase shares of restricted Common Stock issued on a warrant-for-share basis with the Series A Convertible Preferred Stock; and
(iii): 500,000 restricted warrants issued as a fee pursuant to an investment banking agreement

(b)

Underwriters and other purchasers.

(i): No underwriters, agents, or placement agents participated in the private placement; and
(ii): 1,500,000 Units (each Unit consisting of one share of Series A Convertible Preferred Stock and one warrant) were sold to accredited investors for cash; and
(iii): 330,000 Units were issued to accredited investors in settlement of debt obligations; and
(iv): 500,000 warrants were issued to a single accredited investor as compensation pursuant to an investment banking agreement.

(c)

Offering Price. The Units were sold for a purchase price of $1.50 per Unit. The Units described in (b) (ii) above were sold for cash; the Units described in (b) (iii) above were issued in satisfaction of debt obligations.

(d)

Exemption Claimed. The transactions were exempt from registration under the Securities Act of 1933, as amended by reason of Sections 4(2) and 4(6) of the Securities Act of 1933, and Rule 506 of Regulation D thereunder.

(e)

Terms of Conversion or Exercise. Terms of conversion or exercise are as follows:

(i): The Series A Convertible Preferred Stock is convertible into shares of Common Stock on a share-for-share basis, subject to dilution adjustments. The Series A Convertible Preferred Stock is entitled to receive dividends on a share-for-share basis with the shares of Common Stock. The Series A Convertible Preferred Stock is entitled to a liquidation preference of $1.50 per share.
(ii): The warrants are each exercisable to purchase a single share of Common Stock (subject to dilution adjustment) for a purchase price of $3.75 per share (subject to dilution adjustment) through the expiration date, July 29, 2002. These common stock warrants expired on July 29, 2002.
(iii): We also entered into a registration rights agreement relating to the shares of Common Stock underlying the Series A Convertible Preferred Stock and the warrants, by which (subject to certain conditions) We are required to register the underlying Common Stock on the request of the holders of 30% or more of the "registerable securities." We are not obligated to obtain effectiveness for more than two such registration statements during the term of the registration rights agreement, which expires upon the unanimous consent of the holders and Isonics. In a registration statement on Form S-3, dated October 10, 2000, all of the shares of Common Stock underlying the Series A Convertible Preferred Stock and the warrants were registered.

(f)

Use of Proceeds. We intend to use the cash proceeds from the sale of the Units for repayment of debt, working capital, and to finance the continued growth of operations including the continued development and commercialization of silicon-28 wafers for the semiconductor industry.

ITEM 27 EXHIBITS AND FINANCIAL STATEMENT SCHEDULES

(a): Exhibits Pursuant to Item 601 of Regulation S-B:

Exhibit Number		Title
1.01		Intentionally omitted
3.01		Registrant's Amended and Restated Articles of Incorporation.(1)
3.02		Registrant's Bylaws.(1)
3.03		Certificate of Determination of Preferences and Rights of the Series A preferred stock (see exhibit 10.18).
3.04		Certificate Of Determination Of Preferences And Rights Of Series B Convertible Preferred Stock(11)
3.05		Certificate of Amendment to Articles of Incorporation(13)
4.01		Specimen Common Stock Certificate.(1)
4.02		Intentionally omitted
4.03		Intentionally omitted
4.04		Intentionally omitted
4.05		Form of warrant Agreement between the Registrant and Continental Stock Transfer & Trust Company.(8)
4.06		Specimen Class B warrant Certificate (see exhibit 10.27).
4.07		Specimen Class C warrant Certificate (see exhibit 10.27).
4.08		Amendment No. 1 to warrant Agreement between the Registrant and Continental Stock Transfer & Trust Company.(7)
5.01	*	Opinion as to the Validity of the Securities
10.01		Registrant's 1996 Stock Option Plan.(1)(2)
10.02		Intentionally omitted
10.03		Registrant's 1996 Executives Equity Incentive Plan.(1)(2)
10.04		Registrant's 1996 Equity Incentive Plan.(1)(2)
10.05		Intentionally omitted
10.06		Option Agreement between the Registrant and Yale University.(1)
10.07		Intentionally omitted
10.08		Letter from Yale University to Registrant dated February 10, 1996.(1)
10.09		Form of Indemnity Agreement entered into by Registrant with each of its directors and investors.(2)
10.10		Intentionally omitted
10.11		Intentionally omitted
10.12		Intentionally omitted

10.13		Intentionally omitted
10.14		Intentionally omitted
10.15		Agreement effective December 4, 2002, between Isonics and Institut fur Umwelttechnologien GmbH ("IUT") of Berlin, Germany, by which Isonics has acquired the exclusive, world-wide rights to detection technologies for explosives, chemical weapons, illegal drugs and other chemical compounds(15)
10.16		Intentionally omitted
10.17		Letter from Yale University to Registrant dated January 28, 1997.(1)
10.18		Certificate of Determination of Preferences and Rights of the Series A preferred stock.(4)
10.19		Share Purchase and Assignment Agreement dated December 23, 2002 between Isonics Corporation and Institut fur Umwelttechnologien GmbH.(3)
10.20		Intentionally omitted
10.21		Intentionally omitted
10.22		Form of Registration Rights Agreement.(4)
10.23		Asset Purchase Agreement dated December 1, 1999 between the Registrant and Eagle-Picher Technologies, LLC.(5)
10.24		[Registration Rights Agreement dated December 1, 1999 between the Registrant and Eagle-Picher Technologies, LLC.](5)
10.25		[Warrant Agreement dated December 1, 1999 between the Registrant and Eagle-Picher Technologies, LLC.](5)
10.26		Supply Agreement between the Registrant and Eagle-Picher Technologies, LLC.(6)
10.27		Amended and Restated warrant Agreement effective as of January 15, 2001, between the Registrant and Continental Stock Transfer and Trust Company, Inc. (8)
10.28		Stock Purchase Agreement dated February 1, 2001, by and between Isonics Corporation and Interpro Zinc, LLC.(9)
10.29		[Joint R&D Project Agreement, dated April 21, 1999, by and between Silex Systems Limited and Isonics Corporation.](10)
10.30		Intentionally omitted
10.31		Sponsored Research Agreement, dated December 15, 1999, by and between Isonics Corporation and Southern Methodist University.(10)
10.32		Stevenson-Wydler Cooperative Research and Development Agreement, dated November 9, 1999, by and between Ernest Orlando Lawrence Berkeley National Laboratory and Isonics Corporation (with attached Project Letter Agreement).(10)
10.33		Intentionally omitted
10.34		Agreement between Isonics Corporation and Silicon Evolution, Inc. dated September 14, 2001(12)
10.35		Technology License Agreement dated September 14, 2001, between Silicon Evolution, Inc. and Isonics Corporation(12)

10.36		Form of employment agreement to be entered into pursuant to the agreement between Isonics Corporation and certain persons previously associated with Silicon Evolution, Inc. dated September 14, 2001(12)
10.37		[Form of lease agreement to be entered into pursuant to the agreement between Isonics Corporation and Silicon Evolution, Inc. dated September 14, 2001](12)
10.38		Amended and Restated Warrant Agreement dated July 26, 2001.(11)
10.39		Consulting Agreement dated October 15, 2001, with Wells Investment Group(13)
10.40		Form of Registration Rights Agreement between Isonics and various accredited investors in connection with the March 22, 2002, convertible promissory note financing.(14)
10.41		Form of Series 2002A 4% Convertible Promissory Note due March 1, 2003 between Isonics and various accredited investors in connection with the March 22, 2002, convertible promissory note financing.(14)
10.42		Form of Warrant Agreement expiring March 20, 2005 between Isonics and various accredited investors in connection with the March 22, 2002, convertible promissory note financing.(14)
21.1		List of subsidiaries.
23.10	*	Consent of independent accountants
23.11	*	Consent of Arter & Hadden (see exhibit 5.01)

*: Filed herewith. All other documents have been previously filed.
(1): Incorporated herein by reference to exhibit filed with Isonics' Registration Statement on Form SB-2 ("Registration Statement") (Commission file No. 333-13289) in which this exhibit bears the same number except exhibit 3.01, which was numbered 3.03 in that registration statement.
(2): Items that are management contracts or compensatory plans or arrangements required to be filed as exhibits pursuant to Item 13(a) of Form 10-KSB.
(3): Filed with Isonics' Current Report on Form 8-K (File No. 001-12531), dated December 23, 2002 and filed February 5, 2003, and incorporated herein by reference.
(4): Filed with Isonics' Current Report on Form 8-K (File No. 001-12531), dated July 29 and filed August 12, 1999, and incorporated herein by reference.
(5): Filed with Isonics' Current Report on Form 8-K (File No. 001-12531) dated December 1, 1999, and filed December 10, 1999, and amendment thereto filed February 10, 2000, and incorporated herein by reference.
(6): Confidential treatment obtained.
(7): Filed with Isonics' Current Report on Form 8-K (File No. 001-12531) dated August 17, 2000, and filed August 18, 2000, and incorporated herein by reference.
(8): Filed with Isonics' registration statement on Form S-4 (File No. 333-37696) or the amendments thereto, and incorporated herein by reference.
(9): Filed with Isonics' Current Report on Form 8-K (File No. 001-12531) dated February 1, 2001, and incorporated herein by reference.
(10): Filed with Isonics' annual report on Form 10-KSB (File No. 001-12531) for the year ended April 30, 2001, and incorporated herein by reference.

(11): Filed with Isonics' Form 8-A/12(g) filed on August 1, 2001.
(12): Filed with Amendment no. 2 to registration statement (File No. 333-56562) and incorporated herein by reference.
(13): Filed with Isonics' current report on Form 8-K (File No. 001-12531) dated January 8, 2002 and incorporated herein by reference.
(14): Filed with Isonics' current report on Form 8-K (file no. 001-12531) dated March 22, 2002, and incorporated herein by reference.
(15): Filed with Isonics' quarterly report on Form 10-QSB (file no. 001-12531) for the quarter ended October 31, 2002.

ITEM 28. UNDERTAKINGS.

The Registrant hereby undertakes the following:

(a) (1) To file, during any period in which it offers or sells securities, a post-effective amendment to this registration statement to:

(i): include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii): reflect in the prospectus any facts or events which, individually or together, represent a fundamental change in the information in the registration statement; and
(iii): include any additional or changed material information of the plan of distribution.

(2) For determining liability under the Securities Act, treat each post-effective amendment as a new registration statement of the securities offered, and the offering of the securities at that time to be the initial bona fide offering.

(3) File a post-effective amendment to remove from registration any of the securities that remain unsold at the end of the offering.

(b) Insofar as indemnification for liabilities arising under the Securities Act may be permitted to directors, officers and controlling persons of the Registrant pursuant to the provisions described under Item 24 above, or otherwise, the Registrant has been advised that in the opinion of the Securities and Exchange Commission such indemnification is against public policy as expressed in the Securities Act and is, therefore, unenforceable. In the event that a claim for indemnification relative to alleged securities act violations (other than the payment by the Registrant of expenses incurred or paid by a director, officer or controlling person in the successful defense of any action, suit or proceeding) is asserted by such director, officer or controlling person, the Registrant will submit to a court of appropriate jurisdiction the question of whether such indemnification is against public policy and will be governed by the final adjudication of such issue.

SIGNATURES

In accordance with the requirements of the Securities Act of 1933, the registrant certifies that it has reasonable grounds to believe that it meets all of the requirements for filing on Form SB-2 and authorized this registration statement to be signed on its behalf by the undersigned, in the City of Golden, State of Colorado, on May 19, 2003.

		ISONICS CORPORATION
		By:	/s/ JAMES E. ALEXANDER James E. Alexander, President

In accordance with the requirements of the Securities Act of 1933, the following persons in their capacities and on the dates stated signed this registration statement.

KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears constitutes and appoints James E. Alexander and Boris I. Rubizhevsky, or either of them, as true and lawful attorneys-in-fact and agents with full power of substitution and re-substitution, for him and in his name, place and stead, in any and all capacities to sign the Registration Statement file herewith and any or all amendments to said Registration Statement (including post-effective amendments and registration statements filed pursuant to Rule 462 and otherwise), and to file the same, with all exhibits thereto, and other documents in connection therewith, the Securities and Exchange Commission granting unto said attorney-in-fact and agents the full power and authority to do and perform each and every act and thing requisite and necessary to be done in and about the foregoing, as to all intents and purposes as he or she might or could do in person, hereby ratifying and confirming all that said attorney-in-fact and agents or any of them, or his substitute, may lawfully do or cause to be done by virtue hereof.

/s/ JAMES E. ALEXANDER James E. Alexander	President, Principal Executive Officer, Principal Operating Officer, and Director	May 19, 2003
/s/ BORIS I. RUBIZHEVSKY Boris I. Rubizhevsky	Director	May 19, 2003
/s/ LINDSAY A. GARDNER Lindsay A. Gardner	Director	May 19, 2003
/s/ RICHARD PARKER Richard Parker	Director	May 19, 2003
/s/ JOHN V. SAKYS John V. Sakys	Principal Financial Officer and Principal Accounting Officer	May 19, 2003

ISONICS CORPORATION AND SUBSIDIARIES

Index to Consolidated Financial Statements


Report of Independent Certified Public Accountants
Consolidated Financial Statements for the Years Ended April 30, 2002 and 2001
	Consolidated Balance Sheets
	Consolidated Statements of Operations
	Consolidated Statement of Stockholders' Equity
	Consolidated Statements of Cash Flows
	Notes to Consolidated Financial Statements
Condensed Consolidated Financial Statements for the Three and Nine Months Ended January 31, 2003 and 2002
	Condensed Consolidated Balance Sheets
	Condensed Consolidated Statements of Operations
	Condensed Consolidated Statements of Cash Flows
	Notes to Condensed Consolidated Financial Statements

Report of Independent Certified Public Accountants

Board of Directors
Isonics Corporation and Subsidiary

We have audited the accompanying consolidated balance sheets of Isonics Corporation and Subsidiary as of April 30, 2002 and 2001, and the related consolidated statements of operations, stockholders' equity, 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 auditing standards generally accepted in the United States of America. 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 Isonics Corporation and Subsidiary as of April 30, 2002 and 2001, 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.

/s/ Grant Thornton LLP

Denver, Colorado
July 31, 2002

F-1

Isonics Corporation and Subsidiary

CONSOLIDATED BALANCE SHEETS

(In thousands, except share amounts)

			April 30,
			2002			2001
ASSETS
CURRENT ASSETS:
	Cash and cash equivalents		$	725		$	1,090
	Accounts receivable (net of allowances of $30 and $39, respectively)			745			778
	Income taxes receivable			—			419
	Inventories			460			492
	Prepaid expenses and other current assets			749			190

		Total current assets		2,679			2,969
LONG-TERM ASSETS:
	Property and equipment, net			70			95
	Goodwill (net of accumulated amortization of $668 and $493, respectively)			1,807			3,006
	Intangible assets not subject to amortization			590			—
	Other assets			68			32

		Total long-term assets		2,535			3,133

TOTAL ASSETS			$	5,214		$	6,102

LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
	Current portion of long-term debt		$	46		$	16
	Convertible notes payable (net of discount of $546)			454			—
	Accounts payable			824			754
	Accrued liabilities			289			590

		Total current liabilities		1,613			1,360
STOCKHOLDERS' EQUITY:
	Class A Preferred Stock—no par value; 10,000,000 shares authorized; shares issued and outstanding: 2002—963,666; 2001—963,666			745			745
	Common stock—no par value; 40,000,000 shares authorized; shares issued and outstanding: 2002—10,824,812; 2001—8,961,288			10,354			8,508
	Additional paid in capital			3,912			2,745
	Deferred compensation			(194	)		—
	Accumulated deficit			(11,216	)		(7,256	)

		Total stockholders' equity		3,601			4,742

TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY			$	5,214		$	6,102

See Notes to Consolidated Financial Statements.

F-2

Isonics Corporation and Subsidiary

CONSOLIDATED STATEMENTS OF OPERATIONS

(In thousands, except per share amounts)

			Year Ended April 30,
			2002			2001
Revenues			$	8,155		$	7,789
Cost of revenues				6,182			6,019

		Gross margin		1,973			1,770
Operating expenses:
	Selling, general and administrative			4,463			4,645
	Research and development			423			1,134
	Goodwill impairment			1,025			—

		Total operating expenses		5,911			5,779

Operating loss				(3,938	)		(4,009	)
Other income (expense)
	Interest and other income, net			73			82
	Loss on disposal of property and equipment			—			(354	)
	Loss on sale of depleted zinc business			—			(208	)
	Gain on sale of International Process Research Corporation			—			59
	Interest expense			(101	)		(2	)
	Foreign exchange			6			(66	)

		Total other income (expense), net		(22	)		(489	)

Loss before income tax expense				(3,960	)		(4,498	)
Income tax expense				—			—

NET LOSS			$	(3,960	)	$	(4,498	)

DEEMED DIVIDEND ON PREFERRED STOCK			$	—		$	(729	)

NET LOSS ATTRIBUTABLE TO COMMON SHAREHOLDERS			$	(3,960	)	$	(5,227	)

Net loss per share—basic and diluted
	Net loss per share attributable to common shareholders		$	(.40	)	$	(.63	)
	Shares used in computing per share information			9,876			8,329

See Notes to Consolidated Financial Statements.

F-3

Isonics Corporation and Subsidiary

CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY

(In thousands, except share amounts)

		Preferred Stock					Common Stock
		Preferred Stock					Common Stock				Additional Paid in Capital		Deferred Comp- ensation			(Accum- ulated Deficit)
		Shares		Amount			Shares		Amount		Additional Paid in Capital		Deferred Comp- ensation			(Accum- ulated Deficit)			Total
BALANCES, April 30, 2000		1,830,000		$	1,415		10,492,931		$	6,764	$	2,016	$	(150	)	$	(2,029	)	$	8,016
	Conversion of preferred stock to common stock	(866,334	)		(670	)	866,334			670		—		—			—			—
	Deemed dividend on preferred stock	—			—		—			—		729		—			(729	)		—
	Exercise of stock options and warrants	—			—		301,244			208		—		—			—			208
	Fair value of common stock and warrants issued for services	—			—		4,500			44		—		—			—			44
	Amortization of deferred compensation	—			—		—			—		—		150			—			150
	Issuance of common stock	—			—		337,500			675		—		—			—			675
	Common stock issued under Employee Stock Purchase Program	—			—		14,214			16		—		—			—			16
	Fair value of common stock issued for patent rights	—			—		75,000			131		—		—			—			131
	Cancellation of common stock issued to Eagle-Picher related to exercise of common stock warrants	—			—		(3,130,435	)		—		—		—			—			—
	Net loss	—			—		—			—		—		—			(4,498	)		(4,498	)

BALANCES, April 30, 2001		963,666			745		8,961,288			8,508		2,745		—			(7,256	)		4,742
	Exercise of warrants	—			—		494,849			473		—		—			—			473
	Fair value of common stock issued for intangible assets	—			—		500,000			590		—		—			—			590
	Fair value of common stock issued for services and employee compensation	—			—		549,750			574		—		—			—			574
	Fair value of common stock issued for services as deferred compensation	—			—		200,000			202		—		(202	)		—			—
	Amortization of deferred compensation	—			—		—			—		—		8			—			8
	Fair value of warrants issued for services	—			—		—			—		217		—			—			217
	Issuance of common stock to settle registration rights issue	—			—		112,504			—		—		—			—			—
	Common stock issued under Employee Stock Purchase Program	—			—		6,421			7		—		—			—			7
	Warrants issued and beneficial conversion feature related to Series 2002A Convertible Notes	—			—		—			—		950		—			—			950
	Net loss	—			—		—			—		—		—			(3,960	)		(3,960	)

BALANCES, April 30, 2002		963,666		$	745		10,824,812		$	10,354	$	3,912	$	(194	)	$	(11,216	)	$	3,601

See Notes to Consolidated Financial Statements.

F-4

Isonics Corporation and Subsidiary

CONSOLIDATED STATEMENTS OF CASH FLOWS

(In thousands)

					Year Ended April 30,
					2002			2001
CASH FLOWS FROM OPERATING ACTIVITIES:
	Net loss				$	(3,960	)	$	(4,498	)
	Adjustments to reconcile net loss to net cash used in operating activities:
		Loss on sale of depleted zinc business				—			208
		Gain on sale of International Process Research Corporation				—			(59	)
		Depreciation and amortization				216			311
		Impairment of goodwill				1,025			—
		Fair value of common stock and warrants issued for services and amortization of deferred compensation				810			194
		Deferred income taxes				—			419
		Loss on disposal of property and equipment				—			354
		Changes in operating assets and liabilities:
			Accounts receivable			33			294
			Income taxes receivable			419			(419	)
			Inventories			32			(226	)
			Prepaid expenses and other assets			(202	)		18
			Accounts payable			70			221
			Accrued liabilities			(301	)		188
			Income taxes payable			—			(152	)

				Net cash used in operating activities		(1,858	)		(3,147	)
CASH FLOWS FROM INVESTING ACTIVITIES:
	Purchases of property and equipment					(17	)		(43	)

				Net cash used in investing activities		(17	)		(43	)
CASH FLOWS FROM FINANCING ACTIVITIES:
	Payments on borrowings					(126	)		(4	)
	Proceeds from borrowings					1,156			—
	Proceeds from issuance of common stock					480			899

				Net cash provided by financing activities		1,510			895
				NET DECREASE IN CASH AND CASH EQUIVALENTS		(365	)		(2,295	)
Cash and cash equivalents at beginning of period						1,090			3,385

Cash and cash equivalents at end of period					$	725		$	1,090

See Notes to Consolidated Financial Statements.

F-5

Isonics Corporation and Subsidiary

NOTES TO CONSOLIDATED FINCANCIAL STATEMENTS

NOTE 1—ORGANIZATION AND SIGNIFICANT ACCOUNTING POLICIES

Organization and Principles of Consolidation

Isonics Corporation develops and markets products worldwide based on isotopes for applications in the energy, medical research, diagnostic, pharmaceutical and semiconductor industries. The consolidated financial statements include our accounts and those of our wholly-owned subsidiary, Chemotrade GmbH ("Chemotrade"). The consolidated financial statements also include the accounts of International Process Research Corporation ("IPRC") through January 31, 2001. On February 1, 2001, we sold IPRC to a management group (see Note 10). All significant intercompany accounts have been eliminated in consolidation.

Cash Equivalents

Cash equivalents include investments purchased with a maturity of less than ninety days. Cash balances held in foreign bank accounts were $388,000 and $616,000 at April 30, 2002 and 2001, respectively.

Concentration of Credit Risk

Financial instruments that potentially subject us to concentrations of credit risk consist primarily of cash equivalents and trade accounts receivable. Cash equivalents are maintained with high quality institutions and are regularly monitored by management. We extend credit to our customers, most of whom are large, established companies. Performing ongoing credit evaluations of our customers' financial condition mitigates credit risk and we generally do not require collateral.

Inventories

Inventories are stated at the lower of cost (first-in, first-out) or market. We perform periodic assessments to determine the existence of obsolete, slow moving and non-salable inventories, and record provisions to reduce such inventories to net realizable value when necessary.

Property and Equipment

Property and equipment are stated at cost. Depreciation is computed using the straight-line method over three to seven years. Leasehold improvements are amortized over the shorter of their estimated useful lives or the lease term.

Goodwill

Goodwill resulted from the acquisition of Chemotrade. We evaluate goodwill for impairment by comparing the unamortized balance of goodwill to the undiscounted future cash flows of the related assets. We modify or adjust goodwill, if impairment is indicated, by comparing the carrying value of the related business assets to their estimated fair value. Estimated fair value is based on estimated discounted future cash flows. Based upon our most recent evaluation, we have determined that goodwill has been impaired and as a result, we have taken a charge of $1,025,000 during the year ended April 30, 2002 (see Note 9). The goodwill resulting from the Chemotrade acquisition is being amortized on a straight-line basis over twenty years. In 2001, we increased the amount of recorded goodwill by $114,000 resulting from contingent consideration payable to the sellers based on the 2001 earnings of Chemotrade.

F-6

Income Taxes

We account for income taxes using an asset and liability approach for financial accounting and reporting purposes. A valuation allowance is provided when deferred tax assets are not expected to be realized.

Revenue Recognition

Revenue from product sales is recognized upon shipment. Product returns and warranty costs have not been material in any period. Prior to the sale of IPRC, revenue from contract research and development services was recognized ratably as services were performed and costs were incurred. Following the sale of IPRC, we no longer conduct contract research and development activities.

Use of Estimates in the Financial Statements

In preparing financial statements in conformity with accounting principles generally accepted in the United States of America, we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosure of contingent assets and liabilities at the date of the financial statements, as well as revenues and expenses during the reporting period. These estimates are based upon mangagement's best findings, after considering past and current events and assumptions about future events. Actual results could differ from those estimates.

Fair Values of Financial Instruments

The fair value of cash and cash equivalents, trade receivables, trade payables and debt approximates carrying value due to the short maturity of such instruments. The fair value of the convertible notes payable is approximately $870,000, and is estimated based on discounted cash flows using our current incremental borrowing rate for similar types of borrowing arrangements.

Translation of Foreign Currencies

We conduct substantially all of our transactions in U.S. dollars, except for certain transactions of Chemotrade that are conducted in Euros. The financial statements of Chemotrade are prepared in Euros and remeasured into U.S. dollars for purposes of consolidation, with the U.S. dollar as the functional currency. Gains and losses from remeasurement and transaction gains and losses are included in the statement of operations.

Accounting for Stock-Based Compensation

We account for stock-based awards to employees and directors using the intrinsic value method in accordance with Accounting Principles Board Opinion No. 25, Accounting for Stock Issued to Employees and related interpretations. We provide additional pro forma disclosures as required under Statement of Financial Accounting Standards ("SFAS") No. 123, Accounting for Stock-Based Compensation.

Net Loss Per Share

Basic earnings per share is computed using the weighted average number of common shares outstanding during the period. Contingently issuable shares are included in the computation of basic earnings per share when the related conditions are satisfied. Diluted earnings per share is computed

F-7

using the weighted average number of common shares and potentially dilutive securities outstanding during the period. Potentially dilutive securities consist of contingently issuable shares, the incremental common shares issuable upon conversion of preferred stock (using the "if converted" method) and shares issuable upon the exercise of stock options and warrants (using the "treasury stock" method). Potentially dilutive securities are excluded from the computation if their effect is anti-dilutive.

In 2002, a total of 7,746,705 outstanding stock options and warrants, and 963,666 outstanding Class A Convertible Preferred Stock shares have been excluded from the diluted computation, as the inclusion would be anti-dilutive. In 2001, a total of 5,742,947 outstanding stock options and warrants, and 963,666 outstanding Class A Convertible Preferred Stock shares have been excluded from the diluted computation, as the inclusion would be anti-dilutive. During 2001, 3,130,435 shares of common stock were excluded from the basic computation, as the issuance of this common stock was contingent upon the delivery of silicon-28 per the terms of the Eagle-Picher Technologies, LLC ("Eagle-Picher") transaction (see Note 3).

The following table reconciles the shares used in the per share computation (in thousands):

		Year Ended April 30,
		2002	2001
Weighted average shares of common stock outstanding		9,876	10,807
Less: Weighted average shares contingently issued		—	(2,478	)

	Shares used for net loss per share—basic and diluted	9,876	8,329

New Accounting Standards

In June 2001, the Financial Accounting Standards Board (the "FASB") adopted SFAS No. 141 Business Combinations and SFAS No. 142 Goodwill and Other Intangible Assets. SFAS No. 141 addresses the methods used to account for business combinations and requires the use of the purchase method of accounting for all combinations after June 30, 2001. SFAS No. 142 addresses the methods used to amortize intangible assets and to assess impairment of those assets, including goodwill resulting from business combinations accounted for under the purchase method. SFAS No. 142 is effective for fiscal years beginning after December 15, 2001, except that goodwill and intangible assets other than goodwill acquired after June 30, 2001 shall be amortized or not amortized in accordance with SFAS 142. We acquired intangible assets from Silicon Evolution, Inc. ("SEI") subsequent to June 30, 2001, and have followed the requirements of SFAS No. 142 (see Note 4).

Included in our assets at April 30, 2002, is goodwill related to the acquisition of Chemotrade in 1998 with a net carrying value of $1,807,000. Upon adoption of SFAS No. 142 on May 1, 2002, we will no longer amortize this goodwill, decreasing our amortization expense by approximately $110,000 per year. We are required to assess this goodwill for impairment in the year of adoption, effective as of the beginning of the year, and at least annually thereafter. We will not be able to determine the full effect of these new pronouncements on our financial position or our results of operations until we are able to complete our analysis of the impairment provisions of the new standards. In the event our analysis under the new guidance indicates this goodwill is further impaired, we will be required to record a charge to our earnings in the year of adoption.

F-8

We have reviewed all recently issued, but not yet effective, accounting pronouncements and do not believe any such pronouncements will have a material impact on our financial statements.

NOTE 2—FINANCIAL STATEMENT COMPONENTS

Inventories consist of the following (in thousands):

	April 30,
	2002		2001
Finished goods	$	248	$	186
Work in process		212		306

	$	460	$	492

Prepaid expenses and other current assets consists of the following (in thousands):

	April 30,
	2002		2001
Prepaid consulting services (see Note 6)	$	172	$	—
Expenses related to Series 2002A Convertible Notes (see Note 13)		182		—
Note receivable from SEI (see Note 4)		93		—
Fair value of common stock warrants issued to Silicon Quest International for manufacturing services (see Note 5)		63		—
Prepaid Insurance		62		—
Other		177		190

	$	749	$	190

Property and equipment consists of the following (in thousands):

	April 30,
	2002			2001
Office furniture and equipment	$	281		$	272
Production equipment		27			34
Leasehold improvements		7			7

		315			313
Accumulated depreciation and amortization		(245	)		(218	)

	$	70		$	95

F-9

Accrued liabilities consist of the following (in thousands):

	Year ended April 30,
	2002		2001
Compensation	$	43	$	52
Customer advances and deposits		147		152
Contingent consideration payable on Chemotrade acquisition		—		114
Other		99		272

	$	289	$	590

Supplemental disclosure of non-cash investing and financing activities (in thousands):

		Year ended April 30,
		2002		2001
Class A Preferred Stock converted into common stock		$	—	$	670
Common stock issued for patent rights		$	—	$	131
Contingent consideration accrued on Chemotrade acquisition		$	—	$	114
Common stock issued for intangible assets		$	590	$	—
Associated with Series 2002A Convertible Notes (Note 13):
	Common stock warrants issued to employees for pledging shares as collateral	$	228	$	—
	Allocation of proceeds to warrants issued in conjunction with the notes and beneficial conversion feature associated with the convertible notes	$	620	$	—
	Common stock warrants issued to investment banker	$	102	$	—

Supplemental disclosures of cash flow information (in thousands):

		Year ended April 30,
		2002		2001
Cash paid during the period for:
	Interest	$	17	$	3
	Income taxes	$	—	$	195

NOTE 3—SALE OF DEPLETED ZINC BUSINESS

On December 1, 1999, we sold our depleted zinc business to Eagle-Picher for $8,230,000, including $1,500,000 due in equal installments on November 30, 2000, 2001 and 2002. We received cash of approximately $6,730,000 from Eagle-Picher at the closing, of which approximately $1,150,000 was used to pay certain accrued liabilities and debt. Upon completion of the sale, we recognized a net gain on the sale amounting to $5,088,000. Eagle-Picher's obligation to pay the final $1,500,000 was subject to the performance of our former depleted zinc supplier under the terms of a supply agreement that was transferred to Eagle-Picher in the sale.

F-10

For the year ended April 30, 2000, we were recognizing the $1,500,000 on a straight-line basis as our former supplier performed. As of April 30, 2000, we had recognized additional gain of $208,000. Eagle-Picher failed to make the first additional payment due November 30, 2000. We believe that the unaffiliated supplier performed as required, and that Eagle-Picher had no cause for its non-payment. We demanded payment from Eagle-Picher, but Eagle-Picher made an unacceptable counteroffer. A total of $458,000 of the contingent gain had been recognized at the time of Eagle-Picher's default, of which $250,000 had been recognized in the year ended April 30, 2001. We ceased recognizing any additional contingent gain as a result of Eagle Picher's failure to make the first payment when due. We established a reserve for the notes receivable and gain recognized to date resulting in a net loss of $208,000 in 2001.

Additionally, Eagle-Picher was to supply us with 200 kilograms of silicon-28 by December 31, 2000, to be used in research and development activities. We gave Eagle-Picher a common stock warrant to obtain 4,000,000 shares of our common stock, however, these common stock warrants and the underlying shares, were contingent upon the delivery of silicon-28 by Eagle-Picher by December 31, 2000. Eagle-Picher exercised its common stock warrant, under a net exercise provision in the warrant agreement, and received 3,130,435 shares of our common stock, in March 2000. Because Eagle-Picher exercised its warrant pursuant to the terms of the net exercise provision, Eagle-Picher did not pay cash to exercise the warrant. Eagle-Picher disputed our calculation and believed we should have issued to it an additional 155,279 shares of common stock.

In addition to its refusal to pay the aforementioned installments of $500,000 due November 30, 2000 and 2001, Eagle-Picher did not deliver 200 kilograms of silicon-28, meeting the specifications as set forth in our agreement, by December 31, 2000. We know that Eagle-Picher's silicon-28 production facility in Oklahoma has encountered certain technical difficulties, which Eagle-Picher refers to as a force majeure. We believe that Eagle-Picher's technical difficulties did not meet the definition of force majeure per our agreements, which would have entitled Eagle-Picher to a delay in the delivery requirement.

As Eagle-Picher was claiming force majeure, it believed it was entitled to retain its ownership to the 3,130,435 shares obtained through the net exercise of the common stock warrant and believed it also should have received the disputed 155,279 shares of our common stock. We disputed Eagle-Picher's claims and on January 26, 2001, our Board of Directors authorized us to cancel Eagle-Picher's common stock shares and return those shares to the "authorized, unissued" category. We cancelled the shares on February 20, 2001.

As we were unable to come to a resolution, we filed for binding arbitration on March 26, 2001 claiming damages against Eagle-Picher of $75,500,000. Eagle-Picher claimed damages of $10,000,000 for alleged misrepresentations regarding the status of the depleted zinc business at the time of sale.

Subsequent to year-end, on July 24, 2002, we entered into a settlement agreement whereby Eagle-Picher paid us $2,500,000 as full consideration for settlement of the dispute. Neither Isonics nor Eagle-Picher acknowledged fault or liability in connection with the dispute. In addition, as a result of the settlement, no shares of our common stock were ultimately issued to Eagle-Picher. In connection with the settlement, we recognized legal expense of $360,000 payable to our legal counsel as satisfaction of the contingency portion of our legal fees, resulting in a net gain of $2,140,000.

F-11

NOTE 4—ACQUISITION OF INTANGIBLE ASSETS FROM SILICON EVOLUTION, INC.

On September 14, 2001 we entered into a perpetual, exclusive technology license agreement with SEI whereby we issued 500,000 shares of our Series B Convertible Preferred Stock for the right to indefinitely use intellectual property assets owned or leased by SEI. The 500,000 shares of Series B Convertible Preferred Stock were valued at $590,000 based upon the closing price on September 14, 2001 of our common stock into which the preferred shares were convertible. On November 13, 2001, the Series B Convertible Stock automatically converted to common stock on a share-for-share basis after our shareholders approved an increase in our authorized capitalization (see Note 13). Under the terms of the agreement, SEI may convert the license into a non-exclusive license if we fail to invest at least $2,000,000 in facilities for the production of Silicon-On-Insulator ("SOI") wafers on or before October 1, 2002.

We have determined that the acquired intangible assets currently have an indefinite useful life as they are not bound by any legal time periods or otherwise limited due to competing technologies, and therefore, in accordance with SFAS No. 142 Goodwill and other Intangible Assets they will not be amortized but rather tested annually for impairment. If indicators of impairment do arise, the intangible assets will be tested for impairment and may result in an impairment charge in the future. Additionally, each reporting period we will evaluate whether events and circumstances continue to support our assessment of an indefinite useful life for these intangible assets.

On November 26, 2001 we hired one former SEI employee to function in the role of Vice President, Advanced Wafer Technology for our newly started SOI business. As part of the employment package, we granted the employee 200,000 shares of restricted stock, vesting in different increments over five years and 200,000 stock options of which 20,000 vested on December 1, 2001 and the remaining amounts vest ratably over five years. The restricted stock and the stock options were issued at and are exercisable at $1.01 per share, respectively. The unamortized deferred compensation as of April 30, 2002, relating to the unvested portion of the restricted stock award is $194,000, is recorded as a reduction to stockholders' equity and is being amortized to compensation expense ratably over the vesting period.

In connection with the negotiation of the acquisition of the above described intangible assets, we provided a working capital loan to SEI of approximately $93,000. The loan is secured by substantially all of SEI's assets. In December 2001, SEI filed a petition for relief under Chapter 7 of the United States Bankruptcy Code. We are confident that our security position will allow for full recoverability of the receivable and we anticipate repayment of this loan to occur during the year ending April 30, 2003.

NOTE 5—ALLIANCE AGREEMENT WITH SILICON QUEST INTERNATIONAL, INC.

On December 19, 2001 we entered into an alliance agreement with Silicon Quest International, Inc. ("SQI") whereby SQI agreed to exclusively manufacture and supply SOI wafers for Isonics. In addition, SQI will provide sales and marketing services as requested by Isonics. The alliance agreement expires on January 24, 2003 and dictates that if the agreement is not amended or extended, then SQI is prohibited from manufacturing SOI wafers without our written permission until January 24, 2004. In connection with this agreement we issued a common stock warrant (valued at $83,000 using the Black-Scholes pricing model) to purchase 100,000 shares of restricted common stock at $1.50 per share. The common stock warrant vested immediately and is exercisable in its entirety beginning December 19, 2002. The common stock warrant expires on December 19, 2004, and its value is being amortized to cost of revenues over the twelve month period beginning February 1, 2002. As of

F-12

April 30, 2002, approximately $63,000 has not been amortized and is recorded as prepaid expenses and other current assets in the accompanying consolidated balance sheet. We shipped our first SOI wafers in January 2002 and recognized revenue of approximately $15,000 for the year ended April 30, 2002.

NOTE 6—CONSULTING AGREEMENT WITH INVESTOR RELATIONS SERVICES, INC.

On December 18, 2001 we entered into a one-year consulting agreement with Investor Relations Services, Inc. ("IRSI") whereby we issued 500,000 shares of restricted common stock for consulting services consisting of financial advisory, strategic business planning and investor and public relations services. The shares of restricted common stock vested immediately and were considered full payment for services (including IRSI expenses) to be performed during the first six months of calendar 2002. The restricted common stock was valued at $515,000 based upon the closing price of our common stock on December 18, 2001 and is being amortized to consulting expense over the six-month period beginning January 1, 2002. As of April 30, 2002 approximately $172,000 has not been amortized and is recorded as prepaid expenses and other current assets in the accompanying consolidated balance sheets. During the last six months of calendar 2002 IRSI will act as an advisor but to the extent that we request IRSI to incur any expenses on our behalf, we will be required to reimburse IRSI for such costs.

Subsequent to year end, on July 1, 2002 we amended the agreement whereby we issued 250,000 shares of restricted common stock so that IRSI will continue to perform consulting services consisting of financial advisory, strategic business planning and investor and public relations services. The shares of restricted common stock vested immediately and were considered full payment for services (including IRSI expenses) to be performed during the last six months of calendar 2002. The restricted common stock was valued at $247,500 based upon the closing price of our common stock on July 1, 2002.

NOTE 7—INVESTMENT BANKING AGREEMENT WITH VFINANCE, INC.

In January 2002, we entered into an agreement with vFinance, Inc. ("vFinance") whereby we issued a common stock warrant (valued at $44,500 using the Black-Scholes pricing model) to purchase 50,000 shares of common stock at $1.50 per share, for investment banking and consulting services. The common stock warrant vested immediately, expires on March 20, 2005 and was expensed to consulting services upon the signing of the agreement. Under the terms of the agreement, which also requires a monthly fee of $5,000, we retained vFinance on an exclusive basis for 90 days and on a non-exclusive monthly basis thereafter. The agreement is cancelable by either party upon 30 days notification. This agreement was subsequently terminated in June 2002.

Subsequent to year-end, on June 10, 2002, we entered into a new agreement with vFinance whereby we issued 25,000 shares of restricted common stock (valued at $26,500 based upon the fair market value of the stock) and 200,000 common stock warrants (valued at $176,000 using the Black-Scholes pricing model) for investment banking, market making and consulting services. The common stock warrants are exercisable at $2.32 per share and expire on June 10, 2006. The agreement is cancelable by either party upon 30 days notification.

NOTE 8—ACCOUNTS RECEIVABLE FINANCING AGREEMENT

On January 18, 2002 we entered into an Accounts Receivable Purchase Agreement with Silicon Valley Bank ("SVB") whereby SVB will advance up to 80% of all gross receivables (up to $1,500,000)

F-13

submitted for financing. Amounts financed are secured individually by the related account receivable and generally by our assets and incur monthly finance and administrative charges of up to 2.25% until repaid. The agreement expires January 17, 2003 and there were no amounts outstanding under this agreement as of April 30, 2002 or subsequent to year-end through July 31, 2002.

NOTE 9—IMPAIRMENT OF GOODWILL

The dynamics of Chemotrade's business changed throughout the year ended April 30, 2002, including the realization in the fourth quarter that we would be unable to renew a major sales contract that expires December 31, 2002, the retirement of two key members of management and an evolving change in our current and future product mix. These conditions led to operating results and forecasted future results that were substantially less than had been anticipated at the time of the acquisition of Chemotrade. We revised our projections and determined that the projected results would not fully support the future amortization of the goodwill balance. In accordance with our policy, we assessed the recoverability of goodwill using a discounted cash flow projection over the next six years, at a risk-adjusted rate of 12%. The six-year time horizon represents our best estimate of Chemotrade's future cash flows given current planned operating conditions. Based on this projection, the cumulative cash flow was insufficient to fully recover the goodwill and fixed asset balance. As a result, we determined that assets with a carrying value of $2,881,000 were impaired, resulting in a write-down of goodwill of $1,025,000 to its fair value.

NOTE 10—REORGANIZATION AND SUBSEQUENT SALE OF IPRC

In January 2001, we acquired the patent rights related to the recovery and recycling of zinc processes from three unaffiliated parties. A total of 75,000 shares of our common stock valued at $131,000 were issued for these rights. On February 1, 2001 we sold IPRC and the acquired patent rights to Interpro Zinc, LLC ("Interpro"), a limited liability company formed by a management group. As part of the transaction, Interpro assumed approximately $700,000 in liabilities associated with the operations of IPRC and agreed to indemnify us against any contingent liabilities related to the IPRC site in Golden, Colorado. The management group consists of Dr. Robert H. Cuttris, formerly president of IPRC, James E. Alexander, president, chief executive officer and chairman of the board of directors of Isonics Corporation, and Boris Rubizhevsky, senior vice president and director of Isonics Corporation. Each of the three aforementioned individuals owns 25% of Interpro. Each of the three aforementioned individuals contributed $100,000 to Interpro to continue the development of the zinc recovery technology. Isonics received a 25% interest in Interpro as consideration for the sale. We realized a gain from the sale of IPRC of $59,000, representing the net liabilities at the date of disposition. In addition, Interpro has assumed Dr. Cuttriss' employment agreement that extended through September 2003. We signed a cooperation agreement (which expired on December 31, 2001) with Interpro to continue leasing office, laboratory and storage space at our current location.

On January 1, 2002 we extended our cooperation agreement on a month-to-month basis with Interpro to continue leasing office, laboratory and storage space at our current location. We incurred rental expense to Interpro of approximately $33,000 for the year ended April 30, 2002.

F-14

NOTE 11—INCOME TAXES

Deferred tax assets (liabilities) are comprised of the following (in thousands):

		April 30,
		2002			2001
Deferred tax assets
	Accruals and expenses deductible in future periods	$	730		$	1,464
	Amortization and depreciation		125			—
	Net operating loss and credit carryforwards		2,206			683

Total deferred tax assets			3,061			2,147
	Valuation allowance		(3,061	)		(2,083	)

			—			64
Deferred tax liabilities
	Amortization and depreciation		—			(64	)

		$	—		$	—

Income tax expense (benefit) consists of the following (in thousands):

		April 30,
		2002			2001
Current
	Federal	$	(888	)	$	(419	)
	State		(81	)		—
	Foreign		(37	)		—

			(1,006	)		(419	)
Deferred
	Federal		888			419
	State		81			—
	Foreign		37			—

			1,006			419

		$	—		$	—

A reconciliation of our effective tax rate to the federal statutory tax rate of 34% follows (in thousands):

	April 30,
	2002			2001
Expected benefit at federal statutory rate	$	(1,346	)	$	(1,529	)
State taxes net of federal benefit		(65	)		(178	)
Foreign income taxed at different rates		82			—
Other items		351			—
Change in valuation allowance		978			1,707

	$	—		$	—

F-15

The federal net operating loss carryforward of approximately $4,955,000 as of April 30, 2002 expires on various dates through 2022. In addition, Chemotrade has a net operating loss carryforward of approximately $428,000 which under current German tax law will not expire until utilized.

We have established a full valuation allowance against the deferred tax assets because it is uncertain whether we will utilize these benefits due to continuing operating losses.

NOTE 12—DEBT AND LETTER OF CREDIT

We have term debt outstanding of $21,000 and $16,000 as of April 30, 2002 and 2001, respectively. The loan bears interest at 5.47%, has a five-year life and is anticipated to be repaid in the year ended April 30, 2003. As a result, the loan has been classified as short term in the accompanying balance sheets. In addition, we have notes outstanding of $25,000 primarily relating to funding of working capital. The notes bear interest at 12 percent, require a monthly payment of approximately $5,000 and are due August 31, 2002. We currently have no lending facilities with any financial institutions, except for an unsecured line of credit available to Chemotrade in the amount of approximately $190,000 and a letter of credit guarantee relating to imports and exports for $50,000. There were no amounts outstanding under the line of credit as of April 30, 2002 and 2001, respectively.

NOTE 13—STOCKHOLDERS' EQUITY

Increase in Authorized and Reserved Capital

Effective November 13, 2001 our shareholders voted to approve an amendment to our articles of incorporation whereby our authorized common stock was increased from 20,000,000 to 40,000,000 shares.

Common Stock

On December 13, 2000, we completed a private placement to accredited investors whereby we sold 337,500 units for $675,000. Each unit consisted of one share of common stock and two redeemable Class B common stock warrants. Class B common stock warrants are exercisable at $1.50 per share until December 31, 2005. Each Class B common stock warrant entitles the holder to receive one share of common stock and one redeemable Class C common stock warrant. Each Class C common stock warrant entitles the holder to purchase one share of common stock at $2.50 until December 31, 2005. We may redeem the Class B and C common stock warrants at a price of $.10 if the closing price of our common stock trades at or above $3.75 per share for any 20 of 30 consecutive trading days provided a registration statement permitting the exercise of those warrants is then current and effective.

Preferred Stock

On July 29, 1999, we completed a private placement financing to accredited investors and creditors valued in total at approximately $2,745,000. We issued 1,830,000 units, each consisting of one share of

F-16

Series A Convertible Preferred Stock and one common stock purchase warrant. We received $2,250,000 in cash proceeds and converted $425,000 of long-term debt in connection with the private placement. Each share of the Series A Convertible Preferred Stock is convertible into one share of our common stock.

During 1998, the Emerging Issues Task Force issued EITF 98-5, "Accounting for Convertible Securities with Beneficial Conversion Features or Contingently Adjustable Conversion Ratios," which was applicable for equity instruments issued after May 20, 1999. EITF 98-5 requires issuers of convertible preferred stock containing a nondetachable conversion feature that is in-the-money at the commitment date to allocate part of the proceeds of the issuance to the conversion feature based on its intrinsic value. The conversion feature on the 1,830,000 shares of preferred stock had an intrinsic value of $686,000 at the commitment date and was reported as a deemed dividend for the year ended April 30, 2000.

On November 16, 2000, the Emerging Issues Task Force issued EITF 00-27, "Application of EITF Issue 98-5 to Certain Convertible Instruments." EITF 00-27 requires the use of an effective conversion price in determining the value of a conversion feature contained in a convertible equity instrument. The consensus opinion for this issue is retroactive for instruments issued after May 20, 1999 and is to be applied in the quarter that includes November 16, 2000. In applying the requirements of EITF 00-27, we determined the value of the conversion feature contained in our preferred stock to be $1,415,000. Of this amount, $686,000 was reported as a deemed dividend in 2000 as discussed above. The remaining $729,000 has been reported as a deemed dividend in 2001.

Dilution Adjustments to Preferred Shareholders

In addition to anti-dilution rights, there are provisions associated with the Series A Convertible Preferred Stock that if triggered, would reduce the current conversion price and effectively allow the preferred shares to convert to common stock at a ratio greater than a one for one basis. As a result of the issuance of the Series 2002A 4% Convertible Notes at $1.00 per share, the Series A Convertible Preferred Stock is now convertible at 1.50 shares of common stock for each share of Series A Convertible Preferred stock outstanding.

Series 2002A Convertible Notes

On March 20, 2002 we completed a financing arrangement whereby we issued $1,000,000 in Series 2002A Convertible Notes along with 200,000 detachable common stock warrants. The notes are

F-17

convertible at a ratio of one common share for each dollar of note outstanding, bear interest at 4% per annum and are due March 1, 2003. The common stock warrants vested immediately, are exercisable at $1.25 per share and expire on March 20, 2005. The notes are convertible at the option of the Company at any time provided that we have met the requirement that the common stock underlying the convertible notes has been registered for resale pursuant to an effective registration statement. The notes are convertible at the option of the holder at any time commencing 91 days after the original issuance date.

Under the terms of the financing agreement, we were required to register the common stock underlying the convertible notes for resale pursuant to an effective registration statement. If we failed to meet this requirement, the holders of the notes had the right to exchange their notes for freely trading common shares pledged by two officers of the Company. Each officer had pledged 500,000 shares as collateral. The common shares underlying the convertible notes were effectively registered on June 9, 2002. None of the notes have been converted to common stock as of April 30, 2002. Subsequent to year-end, as of July 25, 2002, the $1,000,000 of convertible notes have been converted to 1,000,000 shares of common stock.

As a result of allocating the proceeds between the convertible notes and the detachable warrants on a relative fair value basis, we recorded a discount to the convertible notes of $190,000. In addition, after applying the provisions of EITF 98-5, "Accounting for Convertible Securities with Beneficial Conversion Features or Contingently Adjustable Conversion Ratios" and EITF 00-27 "Application of EITF Issue 98-5 to Certain Convertible Instruments," we determined that the conversion feature on the $1,000,000 convertible notes had an intrinsic value of $430,000, which was recorded as an additional discount to the convertible notes. The discount to the convertible notes is being amortized to interest expense over the life of the convertible notes. We incurred approximately $74,000 in interest expense related to the amortization of the discount to the convertible notes during the year ended April 30, 2002. As of April 30, 2002 the balance, net of discount, on the Series 2002A Convertible Notes is approximately $454,000 and is presented as convertible notes payable in the accompanying balance sheets. As a result of the subsequent conversion of the notes to common stock, we will expense the entire remaining discount amount of $546,000 to interest expense in the first quarter of the year ended April 30, 2003.

In connection with completing the financing arrangement, we paid the investment banker $100,000 and issued them 100,000 common stock warrants (valued at $102,000 using the Black-Scholes pricing model). The common stock warrants are exercisable at $1.25 per share and expire on March 20, 2005. The total debt offering costs have been capitalized and are being amortized to expense over the life of the convertible notes.

As a result of two of our officers pledging 500,000 each of their own common shares in connection with this transaction, we issued each of them 100,000 common stock warrants (valued at $228,000 using the Black-Scholes pricing model). The common stock warrants vested immediately, are exercisable at $1.25 per share and expire on March 20, 2007. The fair market value of these common stock warrants was expensed in the year ended April 30, 2002.

F-18

Stock Option and Purchase Plans

1996 Stock Option Plan

Our 1996 Stock Option Plan authorized the grant of incentive and nonqualified stock options to our key employees, directors or consultants. The options generally expire ten years from the date of grant. In September 1997, the Board of Directors terminated the 1996 Stock Option Plan. As of April 30, 2002, there remain 358,769 options outstanding and zero shares available for grant under the 1996 Stock Option Plan.

Directors' Stock Option Plan

The 1998 Directors' Plan provides that each person serving as a member of the Board, who is not an employee of Isonics, receive options to purchase 20,000 shares of common stock when such person accepts his position as a director and to receive an additional option to purchase 10,000 shares when such person is re-elected as a director provided such person is not an employee of Isonics at the time of election. The exercise price for the options is the quoted market price on the date of grant and the options are exercisable for five years from such date. The options granted under the directors' plan vest immediately. In the event a director resigns or is not re-elected to the Board, failure to exercise the options within three months results in the options' termination. As of April 30, 2002, options to purchase a total of 170,000 shares were outstanding under the directors' plan.

Executive and Incentive Stock Option Plans

In November 1996, the Board of Directors adopted the Executives' Incentive and Incentive Stock Option Plans authorizing the granting of up to 570,000 and 150,000 incentive and nonqualified stock options respectively, to our key employees, directors or consultants. Effective October 11, 2000, shareholders approved an increase in the authorized shares for the Executive and Incentive Stock Option Plans to 1,000,000 and 500,000, respectively. Effective November 13, 2001, our shareholders approved an increase in the authorized shares for the Executive and Incentive Stock Option Plans to 2,000,000 and 1,000,000, respectively. Incentive stock options are granted at a price not less than fair market value, and nonqualified stock options are granted at a price not less than 85% of the fair market value. Options are exercisable when vested, typically over four to five years and expire five to ten years after the date of grant. As of April 30, 2002, options to purchase a total of 1,039,704 shares were outstanding and 1,603,658 shares were available for grant under the Executive and Incentive Stock Option Plans.

Employee Stock Purchase Plan

The employee stock purchase plan has reserved 200,000 shares of our common stock for sale to all permanent employees who have met minimum employment criteria. Employees who do not own 5% or more of the outstanding shares are eligible to participate through payroll deductions. At the end of each offering period, shares are purchased by the participants at 85% of the lower of the fair market value of our common stock at the beginning or the end of the offering period. As of April 30, 2002, 34,358 shares have been issued under the plan.

F-19

Pro Forma Disclosure of Compensation Expense under SFAS No. 123

The exercise price of options granted is the quoted market price of our stock on the date of grant. Accordingly, no compensation expense has been recognized for grants from the plans made to employees or directors. Had compensation cost for grants to employees and directors been determined based on the fair value of the options at the grant dates consistent with SFAS No. 123, Accounting for Stock-Based Compensation, our results of operations and per share amounts for the years ended April 30, 2002 and 2001 would have been changed to the pro forma amounts indicated below.

		2002			2001
Net loss attributable to common shareholders
	As reported	$	(3,960,000	)	$	(5,227,000	)
	Pro forma	$	(4,389,000	)	$	(5,819,000	)
Income loss per share attributable to common shareholders—basic
	As reported	$	(.40	)	$	(.63	)
	Pro forma	$	(.44	)	$	(.70	)
Income loss per share attributable to common shareholders—diluted
	As reported	$	(.40	)	$	(.63	)
	Pro forma	$	(.44	)	$	(.70	)

For purposes of the pro forma disclosures, the fair value of each option grant is estimated on the date of grant using the Black-Scholes option pricing model with the following weighted average assumptions; no expected dividends, volatility of 150%; risk-free interest rate of 4.0%; and expected lives of four to eight years. A summary of the status of our stock option plans as of April 30, 2002 and 2001, and changes during the years ended on these dates is presented below.

		Number of Shares		Weighted Average Exercise Price
Outstanding, April 30, 2000		1,086,764		$	2.25
	Granted	235,000		$	2.68
	Exercised	(201,912	)	$	1.03
	Canceled	(12,000	)	$	2.00

Outstanding, April 30, 2001		1,107,852		$	2.43
	Granted	805,121		$	1.17
	Exercised	—			—
	Canceled	(344,500	)	$	2.84

Outstanding, April 30, 2002		1,568,473		$	1.69

The weighted average fair value of options granted during the years ended April 30, 2002 and 2001 was $1.07 and $2.46, respectively.

F-20

The following information applies to options outstanding at April 30, 2002:

Range of Exercise Price	Number Outstanding	Weighted Average Exercise Price		Weighted Average Remaining Contractual Life (Years)	Number Exercisable	Weighted Average Exercise price
$0.58	207,340	$	0.58	4	207,340	$	0.58
$1.00 - $1.44	909,704	$	1.12	5	414,704	$	1.17
$1.66 - $2.38	241,429	$	1.81	6	166,429	$	1.73
$3.50	80,000	$	3.50	5	80,000	$	3.50
$5.50 - $7.31	130,000	$	6.13	4	72,500	$	7.15

	1,568,473	$	1.69		940,973	$	1.80

Warrants

We have issued warrants in connection with debt offerings, private placements of both common and convertible preferred stock, our IPO and as consideration for concessions from lenders and vendors. A summary of the activity in our warrants follows:

		Number of Shares		Weighted Average Exercise Price
Outstanding, April 30, 2000		3,926,647		$	4.01
	Warrants issued in private placement of common stock	675,000			1.50
	Warrants issued under anti-dilution agreement	146,301			3.52
	Warrants issued for services	10,000			5.00
	Exercised	(99,332	)		2.76
	Forfeited, via net exercise	(23,521	)		2.76

Outstanding, April 30, 2001		4,635,095			3.44
	Warrants issued in settlement of registration statement requirements	675,000			1.50
	Class C warrants issued in connection with exercise of Class B warrants	202,500			2.50
	Warrants issued in connection with issuance of convertible notes	500,000			1.27
	Warrants issued under anti-dilution agreement	642,654			2.79
	Warrants issued for services	250,000			1.43
	Exercised	(494,849	)		0.96
	Expired	(232,168	)		5.48

Outstanding, April 30, 2002		6,178,232		$	2.35

F-21

The outstanding warrants as of April 30, 2002, are summarized as follows:

	Number Outstanding	Weighted Average Exercise Price		Expiration Date
Class B Warrants	1,780,110	$	1.50	12-31-2005
Class C Warrants	202,500	$	2.50	12-31-2005
Other Warrants	4,195,622	$	2.70	(1	)

	6,178,232	$	2.35

(1): The other warrants expire at various dates ranging from July 18, 2002 through July 31, 2007.

On April 30, 2001, we completed an exchange offer whereby the holders of Class A common stock warrants could exchange each Class A common stock warrant for a Class B common stock warrant. In order to participate in the exchange offer, each holder of the Class A common stock warrants was required to submit their election by April 30, 2001. As a result of this exchange offer, 632,610 of the 810,000 Class A common stock warrants were exchanged for Class B common stock warrants. The remaining 177,390 Class A common stock warrants that weren't exchanged expired September 21, 2001.

NOTE 14—BUSINESS SEGMENTS AND FOREIGN OPERATIONS

We currently have three reportable segments: life sciences, semiconductor materials and products and corporate. Our life sciences segment sells stable and radioisotopes in elemental and simple compound forms for use in life sciences applications. Our semiconductor materials and products segment sells SOI wafers and is involved in several research and development projects including silicon-28. Our corporate segment has no revenues of its own.

Information by segment is set forth below (in thousands):

			2002			2001
Segment revenues:
	Life sciences		$	8,140		$	7,789
	Semiconductor materials and products			15			—

		Total	$	8,155		$	7,789

Segment operating (loss) income
	Life sciences		$	(388	)	$	512
	Semiconductor materials and products			(659	)		(594	)
	Corporate			(2,891	)		(3,927	)

		Total	$	(3,938	)	$	(4,009	)

Total assets:
	Life sciences		$	3,543		$	5,069
	Semiconductor materials and products			598			—
	Corporate			1,073			1,033

		Total	$	5,214		$	6,102

F-22

A summary of our operations by geographic area is presented below (in thousands):

			2002			2001
Net revenues
	United States		$	4,239		$	2,602
	Germany			3,916			5,187

		Total	$	8,155		$	7,789

Operating loss
	United States		$	(2,677	)	$	(3,978	)
	Germany			(1,261	)		(31	)

		Total	$	(3,938	)	$	(4,009	)

Total assets
	United States		$	2,402		$	1,814
	Germany			2,812			4,288

		Total	$	5,214		$	6,102

NOTE 15—EMPLOYEE BENEFIT PLAN

We have a profit sharing plan qualified under section 401(k) of the Internal Revenue Code. The plan is a defined contribution plan, covering substantially all of our employees. Company contributions to the plan aggregated approximately $27,000 and $39,000 for 2002 and 2001, respectively.

NOTE 16—CONCENTRATIONS

As of April 30, 2002, three customers accounted for approximately 37% of total net accounts receivable. Five customers accounted for approximately 50% of total net accounts receivable at April 30, 2001. Three customers accounted for approximately 48.0% of revenues during the year ended April 30, 2002. Five customers accounted for approximately 41% of revenues during the year ended April 30, 2001. Two customers accounted for approximately 47% and 35% of the German segment's revenue for the year ended April 30, 2002 and 2001, respectively. Two customers accounted for approximately 37% of the German segment's accounts receivable at April 30, 2002. One customer accounted for approximately 23% of the German segment's accounts receivable at April 30, 2001.

NOTE 17—RELATED PARTY TRANSACTIONS

In October 2001, we entered into a four-year consulting agreement with Wells Investment Group ("WIG") principally for financial advisory services. Under the terms of the agreement, we paid $15,000 and issued a common stock warrant (valued at $45,000 using the Black-Scholes pricing model) to purchase 50,000 shares of restricted common stock at $1.50 per share. The common stock warrant vested immediately, expires on October 15, 2005 and is being amortized to consulting expense over the life of the agreement. WIG, is owned and controlled by a member of our Board of Directors.

On January 1, 2002, we entered into a one-year consulting agreement with HS-CONSULT GMBH ("HSC") primarily to assist Chemotrade in buying and selling isotope products. HSC primarily consists of our former managing director of Chemotrade and an additional former key employee of

F-23

Chemotrade. The consulting agreement expires on December 31, 2002 and requires a monthly payment of 5,500 Euros for the services to be provided. In connection with the agreement we also issued a common stock warrant (valued at $44,000 using the Black-Scholes pricing model) to purchase 50,000 shares of restricted common stock at $1.20 per share. The common stock warrant vested and is exercisable immediately. The common stock warrant expires on December 31, 2004 and is being amortized to consulting expense over the life of the agreement.

On March 4, 2002, we entered into an agreement with our Vice President of Semiconductor Materials and Products whereby he loaned us $75,000. The loan bore interest at a rate of 12% per annum and was repaid in April 2002. There are no amounts outstanding to any employees at April 30, 2002.

NOTE 18—COMMITMENTS

We rent office and production facilities and equipment under operating leases expiring through March 2004. Rent expense for operating leases was approximately $180,000 and $224,000 for the years ended April 30, 2002 and 2001, respectively. Future minimum annual operating lease commitments are as follows (in thousands):

Year ending April 30,
2003	$	172
2004		46

	$	218

NOTE 19—SUBSEQUENT EVENTS

Subsequent to year-end, on July 31, 2002, we sold our 75% interest in Chemotrade Leipzig GmbH ("CTL") to the 25% shareholder for 50,000 Euros. The transaction is effective as of May 1, 2002. Under the terms of the agreement, we will receive 20,000 Euros on August 10, 2002 and the remaining 30,000 Euros will be paid in five equal monthly installments at the end of each month beginning August 31, 2002. We recognized revenue and gross margin related to CTL of approximately $1,575,000 and $326,000, respectively for the year ended April 30, 2002.

F-24

ISONICS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED BALANCE SHEETS

(in thousands, except share amounts)

			January 31, 2003			April 30, 2002
			(Unaudited)
ASSETS
CURRENT ASSETS:
	Cash and cash equivalents		$	829		$	725
	Accounts receivable (net of allowances of $29 and $30, respectively)			865			745
	Inventories			470			460
	Prepaid expenses and other current assets			472			749

		Total current assets		2,636			2,679

LONG-TERM ASSETS:
	Property and equipment, net			527			70
	Goodwill			1,807			1,807
	Intangible assets (net of accumulated amortization of $49 and $0, respectively)			814			590
	Other assets			99			68

		Total long-term assets		3,247			2,535

TOTAL ASSETS			$	5,883		$	5,214

LIABILITIES AND STOCKHOLDERS' EQUITY
CURRENT LIABILITIES:
	Current portion of long-term debt		$	—		$	46
	Current portion of obligation under capital leases			47			—
	Convertible notes payable (net of discount of $0 and $546, respectively)			—			454
	Accounts payable			538			824
	Accrued liabilities			328			289

		Total current liabilities		913			1,613

OBLIGATION UNDER CAPITAL LEASES, net of current portion				98			—
STOCKHOLDERS' EQUITY:
	Preferred stock—no par value; 10,000,000 shares authorized; 963,666 shares issued and outstanding on January 31, 2003 and April 30, 2002			745			745
	Common stock—no par value; 40,000,000 shares authorized; 12,106,033 shares issued and outstanding on January 31, 2003 and 10,824,812 shares issued and outstanding on April 30, 2002			11,659			10,354
	Additional paid in capital			4,348			3,912
	Deferred compensation			(155	)		(194	)
	Accumulated deficit			(11,725	)		(11,216	)

		Total stockholders' equity		4,872			3,601

TOTAL LIABILITIES AND STOCKHOLDERS' EQUITY			$	5,883		$	5,214

See notes to condensed consolidated financial statements.

F-25

ISONICS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS

(in thousands, except per share data)

(Unaudited)

			Three Months Ended January 31,						Nine Months Ended January 31,
			2003			2002			2003			2002
Revenues			$	2,364		$	2,334		$	6,861		$	5,985
Cost of revenues				1,793			1,767			5,228			4,496

		Gross margin		571			567			1,633			1,489
Operating expenses:
	Selling, general and administrative			1,065			1,042			3,315			2,841
	Research and development			60			101			189			348

		Total operating expenses		1,125			1,143			3,504			3,189

Operating loss				(554	)		(576	)		(1,871	)		(1,700	)

Other income (expense):
	Gain on legal settlement, net			—			—			2,140			—
	Amortization of debt offering costs			—			—			(182	)		—
	Foreign exchange			(31	)		(18	)		(83	)		(65	)
	Interest and other income, net			5			12			48			35
	Interest expense			(4	)		(4	)		(561	)		(29	)

		Total other income (expense), net		(30	)		(10	)		1,362			(59	)

Loss before income taxes				(584	)		(586	)		(509	)		(1,759	)
Income tax expense				—			—			—			(4	)

NET LOSS			$	(584	)	$	(586	)	$	(509	)	$	(1,763	)

Net loss per share—basic and diluted
Net loss per share			$	(.05	)	$	(.06	)	$	(.04	)	$	(.18	)
Shares used in computing per share information				11,937			10,213			11,580			9,560

See notes to condensed consolidated financial statements.

F-26

ISONICS CORPORATION AND SUBSIDIARIES

CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS

(in thousands)

(Unaudited)

			Nine Months Ended January 31,
			2003			2002
Net cash provided by (used in) operating activities			$	513		$	(1,097	)
CASH FLOWS FROM INVESTING ACTIVITIES:
	Purchases of property and equipment			(369	)		(18	)

		Cash used in investing activities		(369	)		(18	)

CASH FLOWS FROM FINANCING ACTIVITIES:
	Repayments of notes payable			(46	)		(30	)
	Proceeds from issuance of notes payable			—			73
	Proceeds from issuance of common stock			6			480

		Cash provided by (used in) financing activities		(40	)		523

NET INCREASE (DECREASE) IN CASH AND CASH EQUIVALENTS:				104			(592	)
	Cash and cash equivalents at beginning of period			725			1,090

	Cash and cash equivalents at end of period		$	829		$	498

Supplemental disclosure of cash flow information:
	Cash paid during the period for:
		Interest	$	18		$	6

		Income taxes	$	—		$	4

Supplemental disclosure of noncash investing and financing activities:
	Common stock issued for intangible assets		$	—		$	590
	Common stock warrants issued for services			—			172
	Common stock issued for services			—			530
	Common stock issued to employees for services			—			246
	Common stock issued to IUT for intangible assets			273			—
	Capital lease obligations for property and equipment			153			—
	Series 2002A Convertible Notes converted into common stock			1,000			—

See notes to condensed consolidated financial statements.

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ISONICS CORPORATION AND SUBSIDIARIES

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS

Basis of Presentation

The accompanying condensed consolidated financial statements of Isonics Corporation and Subsidiaries as of January 31, 2003, and for the three months and nine months ended January 31, 2003, and 2002, have been prepared on the same basis as the annual audited financial statements. In the opinion of management, such unaudited information includes all adjustments (consisting only of normal recurring accruals) necessary for a fair presentation of this interim information. Operating results and cash flows for interim periods are not necessarily indicative of results for the entire year. The information included in this report should be read in conjunction with our audited financial statements and notes thereto included in our Annual Report on Form 10-KSB for the year ended April 30, 2002.

Net Income (Loss) Per Share

Basic net income (loss) per share is computed using the weighted average number of common shares outstanding during the period. Contingently issued shares are included in the computation of basic net income (loss) per share when the related conditions are satisfied. Diluted net income (loss) per share is computed using the weighted average number of common shares and potentially dilutive securities outstanding during the period. Potentially dilutive securities consist of contingently issued shares, the common shares issuable upon conversion of preferred stock or convertible debt (using the "if converted" method) and shares issuable upon the exercise of stock options and common stock warrants (using the "treasury stock" method). Potentially dilutive securities are excluded from the computation if their effect is anti-dilutive.

As of January 31, 2003, a total of 5,147,840 outstanding stock options and common stock warrants and 963,666 outstanding shares of Class A Convertible Preferred Stock were excluded from the diluted net income (loss) per share calculation, as the inclusion would be anti-dilutive. As of January 31, 2002, a total of 6,937,278 outstanding stock options and common stock warrants and 963,666 outstanding shares of Class A Convertible Preferred Stock were excluded from the diluted net income (loss) per share calculation, as the inclusion would be anti-dilutive.

During the nine month period ended January 31, 2003, we issued the following shares of Common Stock:

Description		Number of Common Stock Shares
Balance as of April 30, 2002		10,824,812
Conversion of Series 2002A Convertible Notes		1,000,000
Issuance of shares for consulting services		25,000
Shares issued from employee stock purchase plan		6,221
Issuance of shares for trace detection technology		250,000

Balance as of January 31, 2003		12,106,033

The aforementioned equity transactions increased common stock in the accompanying condensed consolidated balance sheet by $1,305,000 for the nine months ended January 31, 2003.

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Inventories

Inventories consist of (in thousands):

		January 31, 2003		April 30, 2002
Finished goods		$	107	$	248
Work in progress			344		212
Materials and supplies			19		—

	Total inventories	$	470	$	460

Significant Customers

As of January 31, 2003, three customers accounted for approximately 65% of total net accounts receivable. Three customers accounted for approximately 37% of total net accounts receivable at April 30, 2002. Two customers (Eastern Isotopes and Perkin Elmer Life Sciences) accounted for approximately 30% and 17%, respectively of revenues for the nine months ended January 31, 2003. Two customers (Eastern Isotopes and Perkin Elmer Life Sciences) accounted for approximately 34% and 13%, respectively of revenues for the three months ended January 31, 2003. Two customers (Perkin Elmer Life Sciences and Eastern Isotopes) accounted for approximately 24% and 19%, respectively of revenues for the nine months ended January 31, 2002. Two customers (Perkin Elmer Life Sciences and Eastern Isotopes) accounted for approximately 29% and 17%, respectively of revenues for the three months ended January 31, 2002.

Two customers (Perkin Elmer Life Sciences and Reviss Ltd.) accounted for approximately 43% and 14%, respectively of the German operation's revenues for the nine months ended January 31, 2003. Two customers (Perkin Elmer Life Sciences and IBT SA) accounted for approximately 37% and 11%, respectively of the German operation's revenues for the three months ended January 31, 2003. Two customers (Perkin Elmer Life Sciences and Reviss Ltd.) accounted for approximately 38% and 10%, respectively of the German operation's revenues for the nine months ended January 31, 2002. One customer (Perkin Elmer Life Sciences) accounted for approximately 39% of the German operation's revenues for the three months ended January 31, 2002. Two customers accounted for approximately 50% of the German operation's accounts receivable at January 31, 2003. Two customers accounted for approximately 37% of the German operation's accounts receivable at April 30, 2002.

Business Segments and Foreign Operations

We currently have two reportable segments: life sciences and semiconductor materials and products. Our life sciences segment sells stable and radioisotopes in elemental and simple compound forms for use in life sciences applications. Our semiconductor materials and products segment sells silicon-on-insulator ("SOI") wafers and is involved in several research and development projects including silicon-28. Reconciling items consist primarily of corporate expenses that have not been allocated to a specific reportable segment.

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Information by segment is set forth below (in thousands):

			Three Months Ended January 31,				Nine Months Ended January 31,
			2003		2002		2003		2002
Segment revenues:
	Life sciences		$	2,304	$	2,330	$	6,743	$	5,981
	Semiconductor materials and products			60		4		118		4

		Total	$	2,364	$	2,334	$	6,861	$	5,985

			Three Months Ended January 31,						Nine Months Ended January 31,
			2003			2002			2003			2002
Segment operating (loss) income:
	Life sciences		$	293		$	130		$	862		$	379
	Semiconductor materials and products			(317	)		(168	)		(684	)		(507	)
	Reconciling amounts			(530	)		(538	)		(2,049	)		(1,572	)

		Total	$	(554	)	$	(576	)	$	(1,871	)	$	(1,700	)

			January 31, 2002		April 30, 2002
Total Assets:
	Life sciences		$	3,575	$	3,543
	Semiconductor materials and products			1,105		598
	Reconciling amounts			1,203		1,073

		Total	$	5,883	$	5,214

A summary of operations by geographic area is as follows:

			Three Months Ended January 31,				Nine Months Ended January 31,
			2003		2002		2003		2002
Revenues:
	United States		$	1,522	$	1,089	$	4,684	$	2,958
	Germany			842		1,245		2,177		3,027

		Total	$	2,364	$	2,334	$	6,861	$	5,985

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			Three Months Ended January 31,						Nine Months Ended January 31,
			2003			2002			2003			2002
Operating (loss) income:
	United States		$	(583	)	$	(465	)	$	(1,905	)	$	(1,545	)
	Germany			29			(111	)		34			(155	)

		Total	$	(554	)	$	(576	)	$	(1,871	)	$	(1,700	)

			January 31, 2003		April 30, 2002
Total Assets:
	United States		$	3,221	$	2,402
	Germany			2,662		2,812

		Total	$	5,883	$	5,214

Sale of Depleted Zinc Business and Subsequent Dispute Settlement

On December 1, 1999, we sold our depleted zinc business to Eagle-Picher Technologies, LLC ("Eagle-Picher") for $8,230,000, including $1,500,000 due in equal installments on November 30, 2000, 2001 and 2002. During the year ended April 30, 2001, we entered into a dispute with Eagle-Picher relating to, among other things, nonpayment of the additional payments related to the alleged nonperformance of our former depleted zinc supplier under the terms of the supply agreement transferred to Eagle-Picher, Eagle Picher's failure to supply us the required amount of silicon-28 to be used in our research and development activities and the validity of Eagle-Picher's exercise of the related common stock warrants into 3,130,435 shares of common stock under the net exercise provision of the warrant agreement.

On July 24, 2002, we entered into a settlement agreement whereby Eagle-Picher paid us $2,500,000 as full consideration for settlement of the dispute. Neither Isonics nor Eagle-Picher acknowledged fault or liability in connection with the dispute. In addition, as a result of the settlement, no shares of our common stock were ultimately issued to Eagle-Picher. In connection with the settlement, we recognized legal expense of $360,000 as satisfaction of the contingency portion of our legal fees, resulting in a net gain of $2,140,000.

Sale of Chemotrade Leipzig GmbH

On July 31, 2002, we sold our 75% interest in Chemotrade Leipzig GmbH ("CTL") to the 25% shareholder for 50,000 Euros (approximately $48,000). In accordance with the sales agreement, the transaction was effective as of May 1, 2002, with the new 100% shareholder controlling the operations from that point forward. We recognized a gain of approximately $30,000, which is recorded as other income (expense) in the accompanying condensed consolidated statements of operations.

F-31

Conversion of Series 2002A Convertible Notes

On March 20, 2002 we completed a financing arrangement whereby we issued $1,000,000 of Series 2002A Convertible Notes. The notes were convertible at a ratio of one common share for each dollar of note outstanding, bore interest at 4% per annum and were due March 1, 2003. During the quarter ended July 31, 2002, the $1,000,000 of convertible notes were converted to 1,000,000 shares of common stock. Due to the conversion of the notes, we incurred interest expense of $546,000 as a result of expensing the remaining unamortized discount during the quarter ended July 31, 2002. In addition, we expensed the remaining debt offering costs of $182,000 during the quarter ended July 31, 2002.

Investment Banking Agreement with vFinance, Inc.

On June 10, 2002 we terminated our then current agreement with vFinance, Inc. ("vFinance") and entered into a new agreement whereby we issued 25,000 shares of restricted common stock (valued at $26,500 based upon the fair market value of the stock) and 200,000 common stock warrants (valued at $176,000 using the Black-Scholes pricing model) for investment banking, market making and consulting services. The common stock warrants vested immediately, are exercisable at $2.32 per share and expire on June 10, 2006. The agreement is cancelable by either party upon 30 days notification. The value of both the restricted common stock (which vested immediately) and the common stock warrants was being amortized to consulting expense over the twelve-month period (the expected life) of the agreement. During the quarter ended October 31, 2002 a dispute arose between the two parties whereby vFinance claimed that it is entitled to additional cash payments along with the shares of restricted common stock and common stock warrants in order to perform the required services under the new agreement. We determined that vFinance is not entitled to cash payments and have refused to make such payment. It is doubtful that this dispute will be resolved and thus the value of the future services to be provided over the remaining life of the new agreement is expected to be minimal. As a result of the uncertainty of future benefit under this agreement, we expensed the remaining $169,000 of value associated with the restricted common stock and common stock warrants to consulting services during the quarter ended October 31, 2002.

Consulting Agreement with Investor Relations Services, Inc.

On July 1, 2002 we amended the agreement whereby we issued 250,000 shares of restricted common stock (valued at $247,500 based upon the fair market value of the stock) so that IRSI would continue to perform consulting services consisting of financial advisory, strategic business planning and investor and public relations services. The shares of restricted common stock vested immediately and were considered full payment for services (including IRSI expenses) to be performed during the last six months of calendar 2002. In August 2002, the contract was terminated due to nonperformance by IRSI and as a result, effective as of July 1, 2002, the 250,000 shares of restricted common stock were cancelled and returned to the "authorized, unissued" category.

F-32

During October 2002, IRSI disputed our termination of the agreement based upon nonperformance and has requested to mediate the matter. If a solution is not reached through mediation the next step under the terms of the agreement would be to enter into binding arbitration. We intend to vigorously defend our position and believe that the outcome will not have a material impact on the results of our operations or financial condition.

Lease Agreements Related to SOI Operations

In September 2002, we entered into several lease agreements related to building space, equipment and services in order to establish our own stand-alone wafer manufacturing facilities ("Fab-1") in Vancouver, Washington. The various leases terminate December 31, 2003 and require minimum monthly payments totaling approximately $14,000 per month. In connection with the establishment of Fab-1, we agreed with Silicon Quest International, Inc. ("SQI") to terminate our alliance agreement effective November 22, 2002. Under the terms of the agreement, SQI is prohibited from producing SOI wafers until November 22, 2003.

Equipment Financing Agreement

In October 2002 we entered into an agreement with Fidelity Capital ("Fidelity") whereby Fidelity agreed to provide up to $1,000,000 in equipment financing. Under the terms of the agreement, Fidelity will acquire equipment on our behalf and lease it to us over a term of 36 months at a current blended interest rate of approximately 7.5%. Each draw down on the lease will contain a $1 bargain purchase option, payable at the end of the lease at which time title to the equipment will transfer to us, and as a result they will be accounted for as capital leases. Principal amounts outstanding under this facility at January 31, 2002 were $145,000. Included in property and equipment, net as of January 31, 2003 is approximately $150,000 of equipment under capital leases.

Dilution Adjustments to Preferred Shareholders

In addition to anti-dilution rights, there are provisions associated with the Series A Convertible Preferred Stock that if triggered, would reduce the current conversion price and effectively allow the preferred shares to convert to common stock at a ratio greater than a one for one basis. As a result of the issuance (and subsequent cancellation) of 250,000 shares of restricted common stock to IRSI (see "Consulting Agreement with Investor Relations Services, Inc.") at $.99 per share, the Series A Convertible Preferred Stock was convertible at approximately 1.52 shares of common stock for each share of Series A Convertible Preferred Stock outstanding.

The shareholders' of the Series A Convertible Preferred Stock asserted that our calculation of the conversion price was incorrect and that it should be convertible at a lower price due to the issuance of the Series 2002A Convertible Notes in March 2002 while we maintained that our calculation was in accordance with the Series A Convertible Preferred Stock agreement. In December 2002, we entered into a settlement agreement whereby both parties agreed to a conversion price of $.90 per share. As a result of the settlement, the Series A Convertible Preferred Stock is convertible at approximately 1.67 shares of common stock for each share of Series A Convertible Preferred Stock outstanding.

F-33

Acquisition of Isotope-Based Trace Detection Technology

In December 2002 we acquired certain isotope-based trace detection technology to be used to detect explosives and chemical and biological weapons from Institut of Umwelttechnologien GmbH ("IUT"), an entity in which we hold a 6% ownership interest. We issued to IUT 250,000 shares of restricted common stock for the isotope-based trace detection technology. In addition, we granted IUT a 15 percent ownership interest in our newly created subsidiary, IUT Detection Technologies, Inc., that will own and commercialize the trace detection technology. The restricted common stock was valued at $272,500 based upon the closing price of our common stock on December 4, 2002. We have determined that these intangible assets have a finite life and as a result, we are amortizing them over their estimated useful life of ten years. We incurred amortization expense of $5,000 during the three and nine months ended January 31, 2003. Amortization expense associated with these intangible assets is anticipated to be approximately $27,000 per year over the remaining useful life.

Consulting Agreement with Park Capital Securities, LLC

In November 2002, we entered into an agreement with Park Capital Securities, LLC whereby we issued a common stock warrant (valued at $261,000 using the Black-Scholes pricing model) to purchase 300,000 shares of common stock at $1.00 per share, for investment banking and consulting services. The common stock warrant vested immediately, expires in November 2005 and will be expensed to consulting services over the life of the agreement. We recognized consulting services expense of $40,000 related to this agreement during the three and nine months ended January 31, 2003. The agreement terminates on December 31, 2003.

Option Agreement to Acquire additional ownership in IUT

In December 2002, we acquired an option (at a cost of $50,000), to purchase an additional 29.1% of IUT from an unaffiliated party for an exercise price of $450,000. The option expired unexercised on February 28, 2003.

New Accounting Standards

Effective May 1, 2002 we adopted the Financial Accounting Standards Board ("the FASB") SFAS No. 141 Business Combinations, SFAS No. 142 Goodwill and Other Intangible Assets and SFAS No. 144 Accounting for the Impairment or Disposal of Long-Lived Assets.

SFAS No. 141 addresses the methods used to account for business combinations and requires the use of the purchase method of accounting for all combinations after June 30, 2001. We will account for any future business combinations in accordance with SFAS No. 141. Adoption of SFAS No. 141 did not have a material impact on our financial statements.

SFAS No. 142 addresses the methods used to amortize intangible assets and to assess impairment of those assets, including goodwill resulting from business combinations accounted for under the purchase method. We adopted SFAS No. 142 effective May 1, 2002, except that goodwill and intangible assets other than goodwill acquired after June 30, 2001 have been amortized or not amortized in accordance with SFAS 142. We acquired intangible assets from Silicon Evolution, Inc. ("SEI") and IUT subsequent to June 30, 2001, and have accounted for those assets in accordance with the requirements of SFAS No. 142 (see "Amortization of SEI Intangible Assets" and "Acquisition of Isotope-Based Trace Detection Technology"). Included in our assets at January 31, 2003, is goodwill related to the acquisition of Chemotrade in 1998 with a net carrying value of $1,807,000. Effective with the adoption of SFAS

F-34

No. 142, we no longer amortize this goodwill, decreasing our amortization expense by approximately $110,000 per year.

In accordance with SFAS No. 142, we have completed step one of the impairment test on our Life Sciences reporting unit, which has recorded goodwill. In completing our analysis of the Life Sciences reporting unit, we used the Discounted Cash Flow ("DCF") Method in which the reporting unit was valued by discounting the projected cash flows over a six-year period to its present value based upon a risk adjusted discount rate. As a result of the testing, we determined that there is no impairment of goodwill. We are required to assess goodwill and other intangibles for impairment at least annually hereafter.

A reconciliation of previously reported net loss and basic and diluted net loss per share to the amounts adjusted for the exclusion of amortization related to goodwill is as follows (in thousands, except per share data):

			Three Months Ended January 31,						Nine Months Ended January 31,
			2003			2002			2003			2002
Reported net loss			$	(584	)	$	(586	)	$	(509	)	$	(1,763	)
	Add back: Goodwill amortization			—			44			—			132

		Adjusted net loss	$	(584	)	$	(542	)	$	(509	)	$	(1,631	)

			Three Months Ended January 31,						Nine Months Ended January 31,
			2003			2002			2003			2002
Basic and diluted net loss per share
	Reported net loss		$	(.05	)	$	(.06	)	$	(.04	)	$	(.18	)
	Add back: Goodwill amortization			—			.01			—			.01

		Adjusted net loss	$	(.05	)	$	(.05	)	$	(.04	)	$	(.17	)

SFAS No. 144 supersedes SFAS No. 121, Accounting for the Impairment of Long-Lived Assets and for Long-Lived Assets to Be Disposed Of. SFAS No. 121 did not address the accounting for a segment of a business accounted for as a discontinued operation, which resulted in two accounting models for long-lived assets to be disposed of. SFAS No. 144 establishes a single accounting model for long-lived assets to be disposed of by sale and requires that those long-lived assets be measured at the lower of the carrying amount or fair value less cost to sell, whether reported in continuing operations or in discontinued operations. Adoption of SFAS No. 144 did not have a material impact on our financial statements.

In June 2002, the FASB issued SFAS No. 146, Accounting for Costs Associated with Exit or Disposal Activities, which is effective for exit or disposal activities initiated after December 31, 2002, with early application encouraged. This statement will require a liability for a cost associated with an exit or disposal activity to be recognized at fair value in the period in which the liability is incurred, except for liabilities for one-time termination benefits requiring future employee service, which is to be recognized ratably over the remaining service period. The application of this statement is not anticipated to have a material impact on our financial statements.

F-35

In December 2002, the FASB issued SFAS No. 148, Accounting for Stock-Based Compensation—Transition and Disclosure. This statement requires all entities with stock-based employee compensation arrangements to provide additional disclosures in their summary of significant accounting policies note. For entities that use the intrinsic value method of APB Opinion 25, Accounting for Stock Issued to Employees, to account for employee stock compensation, their accounting policies note will be required to include a tabular presentation of pro forma net income and earnings per share using the fair value method. This statement also permits entities changing to the fair value method of accounting for employee stock compensation to choose from one of three transition methods—the prospective method, the modified prospective method, or the retroactive restatement method. The main provisions of this statement are effective for fiscal years ending after December 15, 2002. We currently have no intention to change to the fair value method to account for employee stock-based compensation; however, the disclosure provisions will be implemented in our financial statements for the year ending April 30, 2003.

We have reviewed all other recently issued, but not yet effective, accounting pronouncements and do not believe any such pronouncements will have a material impact on our financial statements.

Amortization of SEI Intangible Assets

On September 14, 2001 we entered into a perpetual, exclusive technology license agreement with SEI whereby we issued 500,000 shares of restricted common stock (valued at $590,000 based upon the closing price of our common stock on September 14, 2001) for the right to indefinitely use intellectual property assets owned or leased by SEI. We initially determined that the acquired intangible assets had an indefinite useful life as they were not bound by any legal time periods or otherwise limited due to competing technologies, and therefore in accordance with SFAS No. 142 Goodwill and Other Intangible Assetsthey were not amortized but rather tested annually for impairment.

During May 2002, upon further evaluation of the uses and applications of the acquired technology and the advancement of the development of our SOI business plan, we determined that the intangible assets no longer had an indefinite life and as a result, the assets are now being amortized over their estimated useful life of ten years. We incurred amortization expense of $44,000 and $15,000 related to these intangible assets during the nine months and three months ended January 31, 2003, respectively. Amortization expense associated with these intangible assets is anticipated to be approximately $59,000 per year over the remaining useful life.

F-36