---

---

UNITED STATES
SECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549

FORM 10-Q

Quarterly Report Under Section 13 or 15(d)
of the Securities Exchange Act of 1934

For Quarterly Period Ended September 30, 2002

Commission File Number 0-14602

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

|NEVADA                                                         |  | 91-1206026                          
|-------------------------------------------------------------- |  | ------------------------------------
|(State or other jurisdiction
of incorporation or organization) |  | (IRS Employer
Identification Number)

73-4460 Queen Kaahumanu Hwy. #102, Kailua-Kona, HI 96740(Address of principal executive offices)

(808) 326-1353(Registrant's telephone number)

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

Number
of common shares outstanding as of October 31, 2002:

Title of Class

Shares OutstandingCommon stock$.005 par value stock

17,566,701


---

---

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CYANOTECH CORPORATION
FORM 10-Q

INDEX

|                                                                                              |                                                                                                                                        | Page
|--------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------------------------------------------------- | ----
|PART I. FINANCIAL INFORMATION                                                                 |                                                                                                                                        |     
|Item 1. Financial Statements                                                                  |                                                                                                                                        |     
|                                                                                              | Consolidated Balance Sheets (unaudited)
September 30, 2002 and March 31, 2002                                                          |     
|                                                                                              | Consolidated Statements of Operations and Comprehensive Loss (unaudited)
Three and six month periods ended September 30, 2002 and 2001 |     
|                                                                                              | Consolidated Statements of Cash Flows (unaudited)
Six month periods ended September 30, 2002 and 2001                                  |     
|                                                                                              | Notes to Consolidated Financial Statements (unaudited)                                                                                 |     
|Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations |                                                                                                                                        | 10  
|Item 4. Controls and Procedures                                                               |                                                                                                                                        | 17  
|PART II. OTHER INFORMATION                                                                    |                                                                                                                                        |     
|Item 4. Submission of Matters to a Vote of Security Holders                                   |                                                                                                                                        | 18  
|Item 6. Exhibits and Reports on Form 8-K                                                      |                                                                                                                                        | 18  
|SIGNATURES                                                                                    |                                                                                                                                        | 19  

2

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PART I. FINANCIAL INFORMATION

Item 1. Financial Statements

CYANOTECH CORPORATION        CONSOLIDATED BALANCE SHEETS        (Dollars in thousands, except share amounts)        (Unaudited)

|                                                   |                                                                                                                                                                 | September 30,
2002         |                                            | March 31,
2002 |       
|-------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------- | -------------------------- | ------------------------------------------ | -------------- | ------
|Assets                                             |                                                                                                                                                                 |                            |                                            |                |       
|Current assets:                                    |                                                                                                                                                                 |                            |                                            |                |       
|                                                   | Cash and cash equivalents                                                                                                                                       |                            | $                                          | 288            |       
|                                                   | Accounts receivable, net                                                                                                                                        |                            |                                            | 1,481          |       
|                                                   | Refundable income taxes                                                                                                                                         |                            |                                            | 9              |       
|                                                   | Inventories (note 2)                                                                                                                                            |                            |                                            | 1,547          |       
|                                                   | Prepaid expenses                                                                                                                                                |                            |                                            | 214            |       
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|                                                   |                                                                                                                                                                 | Total current assets       |                                            |                | 3,539 
|Equipment and leasehold improvements, net (note 3) |                                                                                                                                                                 |                            | 13,457                                     |                |       
|Other assets                                       |                                                                                                                                                                 |                            | 874                                        |                |       
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|                                                   |                                                                                                                                                                 | Total assets               |                                            | $              | 17,870
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|Liabilities and Stockholders' Equity               |                                                                                                                                                                 |                            |                                            |                |       
|Current liabilities:                               |                                                                                                                                                                 |                            |                                            |                |       
|                                                   | Current maturities of long-term debt                                                                                                                            |                            | $                                          | 305            |       
|                                                   | Accounts payable                                                                                                                                                |                            |                                            | 863            |       
|                                                   | Accrued expenses                                                                                                                                                |                            |                                            | 406            |       
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|                                                   |                                                                                                                                                                 | Total current liabilities  |                                            |                | 1,574 
|Long-term debt, excluding current maturities:      |                                                                                                                                                                 |                            |                                            |                |       
|                                                   | Term loan                                                                                                                                                       |                            |                                            | 2,617          |       
|                                                   | Accounts payable                                                                                                                                                |                            |                                            | 1,238          |       
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|                                                   |                                                                                                                                                                 | Total liabilities          |                                            |                | 5,429 
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|Stockholders' equity:                              |                                                                                                                                                                 |                            |                                            |                |       
|                                                   | Common Stock of $0.005 par value, authorized 25,000,000 shares; issued and outstanding 17,566,701 at September 30, 2002 and 17,043,701 shares at March 31, 2002 |                            |                                            | 88             |       
|                                                   | Additional paid-in capital                                                                                                                                      |                            |                                            | 25,137         |       
|                                                   | Accumulated other comprehensive loss-foreign currency translation adjustments                                                                                   |                            |                                            |               |       
|                                                   | Accumulated deficit                                                                                                                                             |                            |                                            | (12,784        | )     
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|                                                   |                                                                                                                                                                 | Total stockholders' equity |                                            |                | 12,441
|                                                   |                                                                                                                                                                 |                            |                                            |                |       
|                                                   |                                                                                                                                                                 |                            | Total liabilities and stockholders' equity |                | $     
|                                                   |                                                                                                                                                                 |                            |                                            |                |       

See
accompanying notes to consolidated financial statements.

3

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CYANOTECH CORPORATION        CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS        (In thousands, except per share amounts)        (Unaudited)

|                               |                            | Three Months Ended
September 30, |                          | Six Months Ended
September 30, |     
|------------------------------ | -------------------------- | -------------------------------- | ------------------------ | ------------------------------ | ----
|
|NET SALES                      |                            | $                                | 2,018                    |                                | $   
|COST OF PRODUCT SALES          |                            |                                  | 1,450                    |                                |     
|                               |                            |                                  |                          |                                |     
|                               |                            |                                  | Gross profit             |                                |     
|                               |                            |                                  |                          |                                |     
|OPERATING EXPENSES:            |                            |                                  |                          |                                |     
|                               |                            | Research and development         |                          |                                | 45  
|                               |                            | General and administrative       |                          |                                | 472 
|                               |                            | Sales and marketing              |                          |                                | 485 
|                               |                            |                                  |                          |                                |     
|                               |                            |                                  | Total operating expenses |                                |     
|                               |                            |                                  |                          |                                |     
|                               |                            | Loss from operations             |                          |                                | (434
|                               |                            |                                  |                          |                                |     
|OTHER INCOME (EXPENSE):        |                            |                                  |                          |                                |     
|                               |                            | Interest income                  |                          |                                | 5   
|                               |                            | Interest expense                 |                          |                                | (123
|                               |                            | Other income, net                |                          |                                | 12  
|                               |                            |                                  |                          |                                |     
|                               |                            |                                  | Total other expense      |                                |     
|                               |                            |                                  |                          |                                |     
|                               |                            |                                  | Loss before income taxes |                                |     
|                               |                            |                                  | Income taxes             |                                |     
|                               |                            |                                  |                          |                                |     
|NET LOSS                       |                            | $                                | (540                     | )                              | $   
|                               |                            |                                  |                          |                                |     
|NET LOSS PER COMMON SHARE      |                            |                                  |                          |                                |     
|                               | Basic and Diluted          |                                  | $                        | (0.03                          | )   
|SHARES USED IN CALCULATION OF: |                            |                                  |                          |                                |     
|                               | Basic and Diluted          |                                  |                          | 17,562                         |     
|COMPREHENSIVE LOSS:            |                            |                                  |                          |                                |     
|                               | Net loss                   |                                  | $                        | (540                           | )   
|                               | Other comprehensive income |                                  |                          | 2                              |     
|                               |                            |                                  |                          |                                |     
|                               |                            | $                                | (538                     | )                              |     
|                               |                            |                                  |                          |                                |     

See
accompanying notes to consolidated financial statements.

4

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CYANOTECH CORPORATION        CONSOLIDATED STATEMENTS OF CASH FLOWS        (Dollars in thousands)        (Unaudited)

|                                                          |                                                      | Six Months Ended
September 30,                                              |                                                                                         
|--------------------------------------------------------- | ---------------------------------------------------- | --------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------
|
|CASH FLOWS FROM OPERATING ACTIVITIES:                     |                                                      |                                                                             |                                                                                         
|                                                          |                                                      | Net loss                                                                    |                                                                                         
|                                                          |                                                      | Adjustments to reconcile net loss to net cash used in operating activities: |                                                                                         
|                                                          |                                                      |                                                                             | Depreciation and amortization                                                           
|                                                          |                                                      |                                                                             | Amortization of debt issue costs                                                        
|                                                          |                                                      |                                                                             | Issuance of stock in exchange for services                                              
|                                                          |                                                      |                                                                             | Issuance and revision of warrants in connection with extension of convertible debentures
|                                                          |                                                      |                                                                             | Net (increase) decrease in:                                                             
|                                                          |                                                      |                                                                             |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|                                                          |                                                      |                                                                             | Net decrease in:                                                                        
|                                                          |                                                      |                                                                             |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|Net cash used in operating activities                     |                                                      |                                                                             | (720                                                                                    
|                                                          |                                                      |                                                                             |                                                                                         
|CASH FLOWS FROM INVESTING ACTIVITIES:                     |                                                      |                                                                             |                                                                                         
|                                                          |                                                      | Investment in equipment and leasehold improvements                          |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|CASH FLOWS FROM FINANCING ACTIVITIES:                     |                                                      |                                                                             |                                                                                         
|                                                          |                                                      | Debt issue costs                                                            |                                                                                         
|                                                          |                                                      | Net proceeds from issuance of common stock                                  |                                                                                         
|                                                          |                                                      | Principal payments on long-term debt                                        |                                                                                         
|                                                          |                                                      | Stock issuance costs                                                        |                                                                                         
|                                                          |                                                      |                                                                             |                                                                                         
|Net cash provided by (used in) financing activities       |                                                      |                                                                             | 138                                                                                     
|                                                          |                                                      |                                                                             |                                                                                         
|Net decrease in cash and cash equivalents                 |                                                      |                                                                             | (763                                                                                    
|Cash and cash equivalents at beginning of period          |                                                      |                                                                             | 1,051                                                                                   
|Cash and cash equivalents at end of period                |                                                      | $                                                                           | 288                                                                                     
|                                                          |                                                      |                                                                             |                                                                                         
|Supplemental disclosure of non-cash financing activities: |                                                      |                                                                             |                                                                                         
|                                                          | Conversion of convertible debentures to common stock |                                                                             | $                                                                                       
|                                                          |                                                      |                                                                             |                                                                                         

See
accompanying notes to consolidated financial statements.

5

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CYANOTECH CORPORATION  FORM 10-Q  NOTES TO CONSOLIDATED FINANCIAL STATEMENTS  September 30, 2002  (Unaudited)

1.    BASIS OF PRESENTATION

The accompanying unaudited consolidated financial statements have been prepared in accordance with accounting principles generally accepted in the United States
of America for interim financial information and with the instructions to Form 10-Q and Regulation S-X. Accordingly, they do not include all of the information
and footnotes required by generally accepted accounting principles for complete financial statements. These consolidated financial statements and notes should be read in conjunction with the Company's
consolidated financial statements contained in the Company's previously filed report on Form 10-K for the year ended March 31, 2002.

The
Company consolidates enterprises in which it has a controlling financial interest. The accompanying consolidated financial statements include the accounts of Cyanotech Corporation
and its wholly-owned subsidiaries, Nutrex Hawaii, Inc. and Cyanotech Japan YK. All significant intercompany balances and transactions have been eliminated in consolidation. While the financial
information furnished for the three and six month periods ended September 30, 2002 is unaudited, the statements in this report reflect all material items which, in the opinion of management,
are necessary for a fair presentation of the results of operations for the interim periods covered and of the financial condition of the Company at the dates of the consolidated balance sheets. The
operating results for the interim period presented are not necessarily indicative of the results that may be expected for the year ending March 31, 2003.

The
preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions
that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements, and the reported amounts of revenues and
expenses during the reporting period. Actual results could differ significantly from those estimates.

2.    INVENTORIES

Inventories are stated at the lower of cost (which approximates first-in, first-out) or market and consist of the following (dollars in
thousands):

September 30, 2002

March 31, 2002Raw materials

$
94

$
115Work in process


154


192Finished goods


1,181


559Supplies


118


128$
1,547

$
994


6

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3.    EQUIPMENT AND LEASEHOLD IMPROVEMENTS

Owned equipment and leasehold improvements are stated at cost. Depreciation and amortization are provided using the straight-line method over the
estimated useful lives for furniture and fixtures and the shorter of the lease terms or estimated useful lives for leasehold improvements as follows:

Equipment

3 to 10 yearsLeasehold improvements

10 to 24 yearsFurniture and fixtures

7 years


Equipment
and leasehold improvements consist of the following (dollars in thousands):

September 30, 2002

March 31, 2002Equipment

$
9,592

$
9,382Leasehold improvements


14,137


14,024Furniture and fixtures


82


8323,811


23,489Less accumulated depreciation and amortization


(10,672
)

(10,017
)Construction in-progress


318


459Equipment and leasehold improvements, net

$
13,457

$
13,931


4.    EARNINGS PER SHARE

For the three and six months ended September 30, 2002 and 2001, warrants and options to purchase Common Stock of the Company and convertible debentures
were outstanding, but were not included in the computation of diluted net loss per common share because the inclusion of these securities would have had an antidilutive effect on the net loss per
common share. As of September 30, 2002, warrants and options to acquire 1,401,030 shares of the Company's common stock and debentures convertible into 1,238,000 shares of the Company's common
stock were outstanding. As of September 30, 2001, warrants and options to acquire 1,021,430 shares of the Company's common stock and debentures convertible into 825,333 shares of the Company's
common stock were outstanding.

5.    RECENT ACCOUNTING PRONOUNCEMENTS

Goodwill and Other Intangible AssetsIn July 2001, the Financial Accounting Standards Board ("FASB") issued
Statement of Financial Accounting Standards ("SFAS") No. 142, "Goodwill and Other Intangible Assets." SFAS No. 142 addresses the initial recognition and measurement of intangible assets
acquired individually or as part of a group of other assets not constituting a business. SFAS No. 142 also addresses, regardless of how acquired, the subsequent accounting and measurement of
goodwill and intangible assets. SFAS No. 142 requires that goodwill and intangible assets with indefinite useful lives no longer be amortized, but instead tested for impairment at least
annually in accordance with the provisions of SFAS No. 142. SFAS No. 142 also requires that intangible assets with definite useful lives be amortized over their respective estimated
useful lives to their estimated residual values, and reviewed for impairment in accordance with SFAS No. 121, "Accounting for the Impairment of Long-Lived Assets and for
Long-Lived Assets to Be Disposed Of." SFAS No. 142 is effective for fiscal years beginning after December 31, 2001. The adoption of SFAS No. 142 did not have a
material effect on the Company's financial condition, results of operations or liquidity.

Accounting for Asset Retirement ObligationsIn June 2001, the FASB issued SFAS No. 143, "Accounting
for Asset Retirement Obligations," which requires that the fair value of a liability for an

7

---

asset retirement obligation be recognized in the period in which it is incurred if a reasonable estimate of fair value can be made. The associated asset retirement costs would be capitalized as part
of the carrying amount of the long-lived asset and depreciated over the life of the asset. The liability is accreted at the end of each period through charges to operating expense. If the
obligation is settled for other than the carrying amount of the liability, the Company will recognize a gain or loss on settlement. The provisions of SFAS No. 143 are effective for fiscal years
beginning after June 15, 2002. Management has not yet determined the impact, if any, of adoption of SFAS No. 143.

Accounting for the Impairment or Disposal of Long-Lived AssetsIn August 2001, the FASB issued
SFAS No. 144, "Accounting for the Impairment or Disposal of Long-Lived Assets." For long-lived assets to be held and used, SFAS No. 144 retains the requirements
of SFAS No. 121 to (a) recognize an impairment loss only if the carrying amount of a long-lived asset is not recoverable from its undiscounted cash flows and
(b) measure an impairment loss as the difference between the carrying amount and fair value. Further, SFAS No. 144 eliminates the requirement to allocate goodwill to
long-lived assets to be tested for impairment, describes a probability-weighted cash flow estimation approach to deal with situations in which alternative courses of action to recover the
carrying amount of a long-lived asset are under consideration or a range is estimated for the amount of possible future cash flows, and establishes a "primary-asset" approach to determine
the cash flow estimation period. For long-lived assets to be disposed of other than by sale (e.g., assets abandoned, exchanged or distributed to owners in a spinoff), SFAS No. 144
requires that such assets be considered held and used until disposed of. Further, an impairment loss should be recognized at the date an asset is exchanged for a similar productive asset or
distributed to owners in a spinoff if the carrying amount exceeds its fair value. For long-lived assets to be disposed of by sale, SFAS No. 144 retains the requirement of SFAS
No. 121 to measure a long-lived asset classified as held for sale at the lower of its carrying amount or fair value less cost to sell and to cease depreciation. Discontinued
operations would no longer be measured on a net realizable value basis, and future operating losses would no longer be recognized before they occur. SFAS No. 144 broadens the presentation of
discontinued operations to include a component of an entity, establishes criteria to determine when a long-lived asset is held for sale, prohibits retroactive reclassification of the asset
as held for sale at the balance sheet date if the criteria are met after the balance sheet date but before issuance of the financial statements, and provides accounting guidance for the
reclassification of an asset from "held for sale" to "held and used." The provisions of SFAS No. 144 are effective for fiscal years beginning after December 15, 2001. The adoption of
SFAS No. 144 did not have a material effect on the Company's financial condition, results of operations or liquidity.

Rescission of FASB Statements No. 4, 44 and 64, Amendment of FASB Statement No. 13, and Technical
CorrectionsIn April 2002, the FASB issued SFAS No. 145, "Rescission of FASB Statements No. 4, 44 and 64, Amendment of FASB Statement No. 13, and
Technical Corrections." SFAS No. 145 rescinds SFAS No. 4, "Reporting Gains and Losses from Extinguishment of Debt," SFAS No. 64, "Extinguishment of Debt Made to Satisfy
Sinking-Fund Requirements," and SFAS No. 44, "Accounting for Intangible Assets of Motor Carriers." SFAS No. 145 also amends SFAS No. 13, "Accounting for Leases," to
eliminated an inconsistency between the required accounting for sale-leaseback transactions and the required accounting for certain lease modifications that have economic effects that are
similar to sale-leaseback transactions. SFAS No. 145 also amends other existing authoritative pronouncements to make various technical corrections, clarify meanings, or describe
their applicability under changed conditions. The provisions of SFAS No. 145 related to the rescission of SFAS No. 4 are effective for fiscal years beginning after May 14, 2002.
The provisions of SFAS No. 145 related to SFAS No. 13 are effective for transactions occurring after May 15, 2002. All other provisions of SFAS No 145 are effective for financial
statements issued on or after May 14, 2002. Early application of the provisions of

8

---

SFAS No. 145 is encouraged and may be as of the beginning of the fiscal year or as of the beginning of the interim period in which SFAS No. 145 was issued. The Company adopted the
provisions of SFAS No. 145 during the quarter ended June 30, 2002. Adoption of SFAS No. 145 did not have a material effect on the Company's financial condition, results of
operations or liquidity.

Accounting for Costs Associated with Exit or Disposal ActivitiesIn July 2002, the FASB issued SFAS
No. 146, "Accounting for Costs Associated with Exit or Disposal Activities." SFAS No. 146 requires companies to recognize costs associated with exit or disposal activities when they are
incurred rather than at the date of a commitment to an exit or disposal plan. Examples of costs covered by the standard include lease termination costs and certain employee severance costs that are
associated with a restructuring, discontinued operation, plant closing, or other exit or disposal activity. Previous accounting guidance was provided by Emerging Issues Task Force ("EITF") Issue
No. 94-3, "Liability Recognition for Certain Employee Termination Benefits and Other Costs to Exit an Activity (including Certain Costs Incurred in a Restructuring)." SFAS
No. 146 replaces EITF Issue No. 94-3. SFAS No. 146 is to be applied prospectively to exit or disposal activities initiated after December 31, 2002. The Company
will adopt the provisions of SFAS No. 146 on January 1, 2003. Management has not yet determined the impact, if any, of adoption of SFAS No. 146.

6.    SUBSEQUENT EVENTS

In October 2002, the Company completed a private placement by issuing (a) $1,250,000 principal amount of 10% convertible subordinated debentures,
due September 30, 2004, convertible to shares of the Company's common stock at a price of $0.65 per share and (b) 750,000 shares of common stock with proceeds to the Company of $300,000.
Proceeds from the 10% convertible subordinated debentures issued in October were used to retire convertible debentures of $1,238,000 which were to mature on October 31,2002. Net proceeds from
the issuance of the common stock will be used for working capital purposes. As a result of this subsequent event, convertible debentures outstanding at September 30, 2002 of $1,238,000 was
reclassified to long-term debt at September 30, 2002.

The
Company has a term loan which contains restrictive covenants which included, among others, maintenance of an annual minimum debt service coverage ratio. The Company failed to meet
this covenant requirement for the year ended March 31, 2002 and subsequently received a waiver from the lender that deferred this requirement until the year ending March 31, 2003. In
November 2002, the lender removed this covenant from the term loan agreement.

7.    GOING CONCERN

The Company's consolidated financial statements have been prepared on a going concern basis, which assumes continuity of operations and realization of assets and
liquidation of liabilities in the ordinary course of business. At September 30, 2002, the Company had cash and cash equivalents of $288,000. For the six months ended September 30, 2002,
the Company incurred a net loss of $1,325,000 and used $720,000 in net cash in operating activities. Accordingly, this raises substantial doubt as to the ability of the Company to continue as a going
concern. The Company's continuation as a going concern is dependent upon its ability to generate sufficient cash flow to meet its obligations on a timely basis, to comply with the terms of its
financing agreements, to obtain additional financing or refinancing as may be required, to attain profitability, or a combination thereof. There can be no assurance that these efforts will be
successful or that the Company will have sufficient cash resources to support its future operations. The accompanying unaudited consolidated financial statements do not include any adjustments that
might result from the outcome of this uncertainty.

9

---



CYANOTECH CORPORATION

Item 2. Management's Discussion and Analysis of Financial Condition and Results of Operations

This report on Form 10-Q contains forward-looking statements regarding the future performance of Cyanotech and future
events that involve risks and uncertainties that could cause actual results to differ materially from the statements contained herein. This document, and the other documents that the Company files
from time to time with the Securities and Exchange Commission, such as its reports on Form 10-K, Form 10-Q, Form 8-K, and its proxy materials,
contain additional important factors that could cause actual results to differ from the Company's current expectations and the forward-looking statements contained herein.

Going Concern

The accompanying unaudited consolidated financial statements have been prepared on a going concern basis, which assumes continuity of operations and realization
of assets and liquidation of liabilities in the ordinary course of business. At September 30, 2002, the Company had cash and cash equivalents of $288,000. For the six months ended
September 30, 2002, the Company incurred a net loss of $1,325,000 and used $720,000 in net cash in operating activities. Accordingly, this raises substantial doubt as to the ability of the
Company to continue as a going concern. The Company's continuation as a going concern is dependent upon its ability to generate sufficient cash flow to meet its obligations on a timely basis, to
comply with the terms of its financing agreements, to obtain additional financing or refinancing as may be required, to attain profitability, or a combination thereof. There can be no assurance that
these efforts will be successful or that the Company will have sufficient cash resources to support its future operations. The accompanying unaudited consolidated financial statements do not include
any adjustments that might result from the outcome of this uncertainty.

Critical Accounting Policies

In response to the Security and Exchange Commission Release No. 33-8040, "Cautionary Advice Regarding Disclosure about Critical Accounting
Policies," the Company has identified the most critical accounting principles upon which our financial status depends. We determined the critical principles by considering accounting policies that
involve the most complex or subjective decisions or assessments. We identified our most critical accounting policies to be those related to principles of consolidation, inventory valuation and revenue
recognition. We state these accounting policies in the notes to consolidated financial statements in the Company's previously filed report on Form 10-K for the fiscal year ended
March 31, 2002. This discussion and analysis should be read in conjunction with our consolidated financial statements and related notes included elsewhere in this report.

Contractual Obligations

See "Contractual Obligations" in "Management's Discussion and Analysis of Financial Condition and Results of Operations" incorporated by reference in the
Company's annual report on Form 10-K for the year ended March 31, 2002. There have been no significant changes in contractual obligations from March 31, 2002 to
September 30, 2002 other than those reported elsewhere in this Form 10-Q.

10

---

Results of Operations

The following table sets forth certain consolidated statement of operations data as a percentage of net sales for the periods indicated:

|                        |                            | Three Months Ended
September 30, |       | Six Months Ended
September 30, |      
|----------------------- | -------------------------- | -------------------------------- | ----- | ------------------------------ | -----
|
|Net sales               |                            | 100.0                            | %     | 100.0                          | %    
|Cost of product sales   |                            | 71.9                             |       | 74.8                           |      
|                        |                            |                                  |       |                                |      
|                        | Gross profit               |                                  | 28.1  |                                | 25.2 
|                        |                            |                                  |       |                                |      
|Operating expenses:     |                            |                                  |       |                                |      
|                        | Research and development   |                                  | 2.2   |                                | 4.8  
|                        | General and administrative |                                  | 23.4  |                                | 20.3 
|                        | Sales and marketing        |                                  | 24.0  |                                | 20.6 
|                        |                            |                                  |       |                                |      
|                        | Total operating expenses   |                                  | 49.6  |                                | 45.7 
|                        |                            |                                  |       |                                |      
|                        | Loss from operations       |                                  | (21.5 | )                              | (20.5
|                        |                            |                                  |       |                                |      
|Other income (expense): |                            |                                  |       |                                |      
|                        | Interest income            |                                  | 0.2   |                                | 0.9  
|                        | Interest expense           |                                  | (6.1  | )                              | (6.6 
|                        | Other income, net          |                                  | 0.6   |                                | 0.1  
|                        |                            |                                  |       |                                |      
|                        | Total other expense        |                                  | (5.3  | )                              | (5.6 
|                        |                            |                                  |       |                                |      
|                        | Loss before income taxes   |                                  | (26.8 | )                              | (26.1
|Income taxes            |                            |                                 |       |                               |      
|                        |                            |                                  |       |                                |      
|Net loss                |                            | (26.8                            | )%    | (26.1                          | )%   
|                        |                            |                                  |       |                                |      

Second Quarter of Fiscal 2003 Compared to Second Quarter of Fiscal 2002

Net Sales

Net sales for the three month period ended September 30, 2002 were $2,018,000, a slight increase from $1,951,000 for the comparable prior quarter of fiscal
2002. This increase is primarily due to higher sales of bulk Spirulina Pacifica® tablets and natural astaxanthin products, partially offset by decreased sales of bulk Spirulina Pacifica
powder.

International
sales represented 49% and 46% of total net sales for the three month periods ended September 30, 2002 and 2001, respectively. This increase was primarily due to
higher bulk sales of Spirulina Pacifica products to our largest customer, Spirulina International B.V., a European distributor
of natural products who is an unrelated third party. Sales to this customer accounted for 14% of net sales during the quarter ended September 30, 2002, compared to 8% recorded for the
comparable prior fiscal year quarter.

Gross Profit

Gross profit represents net sales less the cost of goods sold, which includes the cost of materials, manufacturing overhead costs, direct labor expenses and
depreciation and amortization. Gross profit for the three month period ended September 30, 2002 increased 16% to $568,000 from $491,000 recorded for the comparable prior fiscal year quarter.
Our gross profit margin for the three month period ended September 30, 2002 increased to 28%, a slight improvement from 25% for the comparable prior fiscal year quarter. This improvement is
primarily attributable to increased sales of

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bulk Spirulina Pacifica tablets and decreased production costs resulting from operating at higher production levels, offset in part by increased demand for Certified Organic Spirulina products which
have a slightly higher cost of production.

Operating Expenses

Operating expenses were $1,002,000 during the quarter ended September 30, 2002, an increase of 13% from the comparable quarter of fiscal 2002, with
increased expenditures in Sales and Marketing and General and Administrative costs, partially offset by decreased expenses in Research and Development.

Research and Development.Research and development expenses during the quarter decreased to $45,000, down 52% from $93,000
for the comparable prior fiscal year period. Lower expenditures for clinical studies and related outside service expenses were the primary cause of the decrease.

General and Administrative.General and administrative expenses increased to $472,000 for the quarter ended
September 30, 2002, up 19% from $396,000 for the comparable period of fiscal 2002. This increase is attributable to higher outside service expenses, higher corporate insurance and a
one-time NASDAQ fee associated with the change in the trading of the Company's common stock on the National Market to the Small Cap Market.

Sales and Marketing.Sales and marketing expenses were $485,000 for the quarter ended September 30, 2002, an increase
of 21% from the comparable period of fiscal 2002. Higher advertising and promotion expenses for all products accounted for this increase.

Other Expense

Other expense for the quarter ended September 30, 2002 decreased $4,000 from the comparable period of fiscal 2002, primarily from a decrease in interest
expense.

Income Taxes

A provision for income taxes was not recorded in either three month period due to the Company's taxable loss position.

Net Loss

The Company recorded a net loss of $540,000 for the three months ended September 30, 2002, 6% greater than the net loss of $509,000 for the comparable
period of fiscal 2002. The change in results is primarily attributable to increased operating expenses partially offset by improved margins on slightly higher net sales.

Six Months Ended September 30, 2002 Compared to Six Months Ended September 30, 2001

Net Sales

Net sales for the six month period ended September 30, 2002 were $4,050,000, a decrease of 5% from the comparable period of fiscal 2002. This decrease is
primarily due to decreased bulk sales of Spirulina Pacifica products, partially offset by higher bulk sales of natural astaxanthin products.

International
sales represented 51% and 49% of total net sales for the six month periods ended September 30, 2002 and 2001, respectively.

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Gross Profit

Gross profit increased 16% to $1,353,000 for the six month period ended September 30, 2002, from $1,169,000 in the comparable period of fiscal 2002. For
the six month period ended September 30, 2002, our gross profit margin increased to 33%, from 27% for the comparable period of fiscal 2002. This increase in gross profit margin from the prior
year comparable period is primarily attributable to improved production cost efficiencies from operating at higher production levels.

Operating Expenses

Operating expenses were up $360,000 during the six month period ended September 30, 2002, an increase of 19% from $1,866,000 from the prior year comparable
period.

Research and Development.Research and development expenses decreased 23% to $146,000 for the six month period ended
September 30, 2002, from the prior year comparable period. This decrease is primarily attributable to reduced expenditures for clinical studies and related outside service expenses.

General and AdministrativeGeneral and administrative expenses increased 20% to $1,057,000 for the current six month period
from the prior year comparable period. Higher corporate insurance, outside service costs in Japan, increased bad debt expenses, also in Japan and a one-time NASDAQ fee associated with the
change in trading of the Company's common stock on the National Market to the Small Cap Market caused nearly all of this increase.

Sales and Marketing.Sales and marketing expenses were up 29% to $1,023,000 for the six month period ended
September 30, 2002, from the prior year comparable period. Expenses in this category include $110,000 of expenses for production of a television infomercial. If the effect of this expense is
omitted for comparison purposes, sales and marketing expenses increased only 15% over the amount recorded for the comparable prior year period. Higher advertising, promotion and outside service
expenses accounted for this increase.

Other Expense

Other expense amounted to $452,000, double the $225,000 recorded for the comparable period of the prior fiscal year, primarily from recognition of costs of
approximately $235,000 related to the extension of the maturity date of convertible debentures (see "Convertible Debentures" in Liquidity and Capital Resources section of this report), partially
offset by slightly lower interest expense.

Income Taxes

A provision for income taxes was not recorded in either six month period due to the Company's taxable loss position.

Net Loss

For the six months ended September 30, 2002, the Company recorded a net loss of $1,325,000 or $0.08 per diluted share compared to a net loss of $922,000 or
$0.05 per diluted share for the comparable period of the prior fiscal year. This change is primarily attributable to decreased net sales, increased operating expenses and the $235,000 charge related
to extension of the maturity date of convertible debentures.

Variability of Results

The Company has experienced significant quarterly fluctuations in operating results and anticipates that these fluctuations may continue in future periods. Future
operating results may fluctuate as a

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result of changes in sales levels to our largest customers, new product introductions, production difficulties, weather patterns, the mix between sales of bulk products and packaged consumer
products, start-up costs associated with new facilities, expansion into new markets, sales promotions, competition, increased energy costs, foreign exchange fluctuations, the announcement
or introduction of new products by competitors, changes in our customer mix, overall trends in the market for our products, government regulations and other factors beyond our control. While a
significant portion of our expense levels are relatively fixed, and the timing of increases in expense levels is based in large part on forecasts of future sales, if net sales are below expectations
in any given period, the adverse impact on results of operations may be magnified by our inability to adjust spending quickly enough to compensate for the sales shortfall. We may also choose to reduce
prices or increase spending in response to market conditions, which may have a material adverse effect on financial condition and results of operations.

Liquidity and Capital Resources

Our working capital for the six month period ended September 30, 2002 increased by $957,000 to $1,965,000 from $1,008,000 at March 31, 2002,
primarily due to reclassification of the convertible debentures which were refinanced on a long-term basis in October 2002, from current liabilities to
long-term liabilities. For the first six months of fiscal 2003, cash and cash equivalents decreased by $763,000 to $288,000 due to cash flows used in operating activities, capital
expenditures and principal payments on long-term debt totaling $1,049,000 in the aggregate, partially offset by net proceeds of $345,000 resulting from the issuance of common stock.

Cash
used in operating activities for the first six months of fiscal 2003 was $245,000 higher than the $475,000 used in the comparable period of fiscal 2002. The primary uses of cash
flows in operating activities during the first six months of fiscal 2003 were due to the net loss of $1,325,000, an increase in inventory of $553,000, that was offset in large part by an increase in
accounts payable and accrued expenses amounting to $368,000 and depreciation and amortization of $655,000.

Cash
used in investing activities (for capital expenditures) for the first six months of fiscal 2003 increased 30%, or $42,000, from $139,000 used in the comparable prior year period.

Cash
provided by financing activities during the first six months of fiscal 2003 amounted to $138,000, compared to cash used by financing activities of $130,000 for the comparable prior
year period, due primarily to completion of a private placement of the Company's common stock in May 2002 which resulted in net proceeds of $345,000.

Term Loan Agreement

On April 21, 2000, the Company executed a Term Loan Agreement ("Term Loan") with a lender which provided for up to $3.5 million in credit
facilities, secured by substantially all the assets of the Company. The Term Loan has a maturity date of May 1, 2010 and is payable in 120 equal monthly principal and interest payments of
approximately $48,000, commencing June 1, 2000. The interest rate under this Term Loan, in the absence of a default under the agreement, is the prime rate, as defined, in effect as of the close
of business on the first day of each calendar quarter, plus 1% (at September 30, 2002, the prime rate was 4.75%). Of the loan proceeds, $500,000 has been deposited in an interest-bearing
restricted cash account per the terms of the loan. A warrant to purchase 20,000 shares of the Company's common stock was issued in conjunction with this Term Loan agreement. The warrant expires in
April 2011 and has an exercise price of $2.55 per share. The warrant may only be exercised after the Company has repaid the Term Loan in full.

The
Term Loan contains restrictive covenants which included, among others, maintenance of an annual minimum debt service coverage ratio. The Company failed to meet this covenant
requirement for the year ended March 31, 2002 and subsequently received a waiver from the lender that deferred

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this requirement until the year ending March 31, 2003. In November 2002, the lender removed this covenant from the term loan agreement.

Convertible DebenturesMay 2000

On May 2, 2000, the Company completed a private placement of $1,250,000 principal amount 6% convertible subordinated debentures ("Debentures") due
April 30, 2002. This transaction provided net proceeds to the Company of approximately $1.1 million. Interest on these Debentures was to be paid quarterly, in arrears, on April 1,
July 1, October 1, and January 2 in each year commencing on July 1, 2000, at a rate of 6% per annum. The Debentures were convertible into shares of common stock of the
Company at a conversion price equal to $1.50 per share, the market price of the Company's common stock at the date of issuance. Warrants to purchase 83,334 shares of the Company's common stock were
issued to the placement agent of the debentures, exercisable for five years from the issue date, at $1.80 per share. At September 30, and March 31, 2002, the outstanding principal amount
of these Debentures was $1,238,000.

In
May 2002, the Company reached an agreement with the holders of the Debentures to extend the maturity date by six months to October 31, 2002. In exchange for the
extension, the Company agreed to: 1) reduce the conversion price from $1.50 per share to $1.00 per share (the approximate market value at date of issuance); 2) increase the interest rate
during the remaining period the Debentures are outstanding from 6% to 10%; 3) issue two-year warrants to the Debenture holders to purchase an aggregate of 371,400 additional shares
of common stock of Cyanotech exercisable at $1.10 per share; and 4) reduce the forced conversion price at which the Company can require the conversion of the Debentures from $3.00 per share to
$1.50 per share. The terms of the aforementioned warrant issued to the placement agent in conjunction with the initial placement were also revised in this extension agreement. Under the terms of the
convertible debenture maturity extension, the warrant exercise price was reduced to $1.10 per share and the expiration date has been accelerated to May 2004.

Subsequent Event

In October 2002, the Company completed a private placement by issuing (a) $1,250,000 principal amount of 10% convertible subordinated debentures,
convertible to shares of the Company's common stock at a price of $0.65 per share, due September 30, 2004, and (b) 750,000 shares of common stock resulting in proceeds to the Company of
$300,000. $1,238,000 of the proceeds from this financing were used to retire the balance of the Debentures issued in May 2000. The balance of net proceeds from this financing arrangement will
be used for working capital purposes.

Common Stock Listing

On June 17, 2002 the Company received a delisting warning letter from NASDAQ for failure to comply with the $1.00 minimum bid price. Cyanotech was allowed
90 calendar days, or until September 16, 2002, to regain compliance. The Company was unable to regain compliance prior to September 16, 2002, and presently has its common stock listed on
the NASDAQ SmallCap Market, which makes
available a 180 calendar day SmallCap Market grace period, or until December 16, 2002 to regain compliance. The Company is also eligible for an additional 180 calendar day grace period, or
until June 16, 2003 to demonstrate compliance provided that it meets additional NASDAQ listing criteria for the SmallCap Market, which Cyanotech currently does. Furthermore, the Company may be
eligible to transfer back to the NASDAQ National Market if, by June 12, 2003, its bid price maintains the $1.00 per share requirement for 30 consecutive trading days and it has maintained
compliance with all other continued listing requirements, which it currently does.

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The
accompanying unaudited consolidated financial statements have been prepared on a going concern basis, which assumes continuity of operations and realization of assets and liquidation
of liabilities in the ordinary course of business. At September 30, 2002, the Company had cash and cash equivalents of $288,000. For the six months ended September 30, 2002, the Company
incurred a net loss of $1,325,000 and used $720,000 in net cash in operating activities. Accordingly, this raises substantial doubt as to the ability of the Company to continue as a going concern. The
Company's continuation as a going concern is dependent upon its ability to generate sufficient cash flow to meet its obligations on a timely basis, to comply with the terms of its financing
agreements, to obtain additional financing or refinancing as may be required, to attain profitability, or a combination thereof. There can be no assurance that these efforts will be successful or that
the Company will have sufficient cash resources to support its future operations. The accompanying unaudited consolidated financial statements do not include any adjustments that might result from the
outcome of this uncertainty.

Recent Accounting Pronouncements

See note 5 of notes to consolidated financial statements.

Quantitative and Qualitative Disclosures About Market Risk

We have not entered into any transactions using derivative financial instruments or derivative commodity instruments and believe that our exposure to market risk
associated with other financial instruments has not changed substantially from March 31, 2002.

Outlook

This outlook section contains a number of forward-looking statements, all of which are based on current expectations. Actual results may
differ materially. See also the note at the beginning of this Item 2.

Cyanotech's
strategy has been and continues to be, to successfully produce higher value natural products from microalgae.

In
spite of the decrease in net sales for the six months ended September 2002 compared to the results of the comparable prior year period, gross margins for all products were
higher due to operating at full capacity. We anticipate this trend will continue for the remainder of fiscal 2003 as we continue to focus on more efficient production yields. The increased output
would be needed to support demand for the Company's branded products, to meet the demand for NatuRose from the Japanese aquaculture feed market and from new customers who are in the process of
integrating our products into new cosmetic and nutraceutical formulations.

We
anticipate further improvement in margin due to projected increases in sales of our Company's branded products, currently sold by our subsidiary, Nutrex Hawaii, Inc. Our new
30-minute television infomercial for BioAstin started airing in certain strategic markets around the country on October 23, 2002 with full results of this market test due back in
late November. This marketing initiative, focused on joint pain relief, capitalizes on the clinical trials completed successfully earlier this year which showed that taking BioAstin could result in
marked improvement in pain relief and joint function for sufferers of Repetitive Strain Injuries such as Carpal Tunnel Syndrome and for symptoms of rheumatoid arthritis, among other complaints.

Since
establishment of our subsidiary Cyanotech Japan YK, we have experienced increased demand for our NatuRose product in the Japanese aquaculture feed market which confirms the
efficacy of NatuRose as a superior pigment for pen-raised fish and shrimp. During the three months ended September 2002, sales of NatuRose through this subsidiary reached record
levels for our Company and although there is some seasonality effect on demand, we expect this trend to continue in future quarters.

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We
are also continuing our work with industry-leading cosmetic manufacturers, pharmaceutical companies offering branded nutraceuticals, direct marketing companies and natural food
supplement makers to assist with integrating our BioAstin natural astaxanthin into their nutraceutical and cosmetic formulations. To date, Twinlab and Sea & Ski have introduced products which
contain our natural astaxanthin and over the remaining six months of fiscal 2003 we expect to announce additional relationships with other such companies.

The
Company's future results of operations and the other forward-looking statements contained in this Outlook, in particular the statements regarding revenues, gross margin, research and
development, and capital spending, involve a number of risks and uncertainties. In addition to the factors discussed above that could cause actual results to differ materially are the following:
business conditions and growth in
the natural products industry and in the general economy; changes in customer order patterns, outcome of the clinical trials forBioAstin, and changes
in demand for natural products in general; changes in weather conditions; competitive factors, such as competing Spirulina and astaxanthin producers increasing their production capacity and their
impact on world market prices for Spirulina and astaxanthin; government actions; shortage of manufacturing capacity; and other factors beyond our control.

Cyanotech
believes that it has the product offerings, facilities, personnel, and competitive and financial resources for improved results, but future revenues, costs, margins and profits
are all influenced by a number of factors, as discussed above, all of which are inherently difficult to forecast.

Item 4. Controls and Procedures

Within the 90-day period prior to the filing of this report, an evaluation was carried out under the supervision and with the participation of the
Company's management, including the Chief Executive Officer ("CEO") and Chief Financial Officer ("CFO"), of the effectiveness of our disclosure controls and procedures. Based on that evaluation, the
CEO and CFO have concluded that the Company's disclosure controls and procedures are effective to ensure that information required to be disclosed by the Company in reports that it files or submits
under the Securities and Exchange Act of 1934 is recorded, processed, summarized and reported within the time periods specified in Securities and Exchange Commission rules and forms. Subsequent to the
date of their evaluation, there were no significant changes in the Company's internal controls or in other factors that could significantly affect the disclosure controls, including any corrective
actions with regard to significant deficiencies and material weaknesses.

17

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PART II. OTHER INFORMATION

Item 4. Submission of Matters to a Vote of Security Holders

On August 22, 2002, the following matters were submitted to a vote of stockholders entitled to vote at the Company's Annual Meeting of Stockholders:



For:
14,818,347        Against: 25,504        Abstaining: 36,133

Item 6. Exhibits and Reports on Form 8-K





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SIGNATURES

In accordance with the requirements of the Securities Exchange Act of 1934, the registrant caused this report to be signed on its behalf by the undersigned,
thereunto duly authorized.

|                       |  | CYANOTECH CORPORATION (Registrant)
|---------------------- |  | ----------------------------------
|November 8, 2002(Date) |  | By:                               
|                       |  | By:                               

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CERTIFICATIONS

I,
Gerald R. Cysewski, Chairman of the Board of Directors, President and Chief Executive Officer certify that:

1.    I
have reviewed this quarterly report on Form 10-Q of Cyanotech Corporation;

2.    Based
on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

3.    Based
on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial
condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4.    The
registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-14 and 15d-14) for the registrant and we have:



5.    The
registrant's other certifying officers and I have disclosed, based on our most recent evaluation, to the registrant's auditors and the audit committee of registrant's
board of directors (or persons performing the equivalent function):



6.    The
registrant's other certifying officers and I have indicated in this quarterly report whether or not there were significant changes in internal controls or in other
factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material
weaknesses.

|Date: | /s/ November 8, 2002 |  | /s/GERALD R. CYSEWSKIGerald R. Cysewski, Chairman of the
Board of Directors,
President and Chief Executive Officer
|----- | -------------------- |  | ------------------------------------------------------------------------------------------------------------------

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Certification of the Chief Executive Officer  Pursuant to 18 U.S.C. 1350,  As Adopted Pursuant to  Section 906 of the Sarbanes-Oxley Act of 2002

In
connection with the Quarterly Report of Cyanotech Corporation (the "Company") on Form 10-Q for the period ended September 30, 2002 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Gerald R. Cysewski, Chief Executive Officer of the Company, certify, pursuant to 18 U.S.C. Section 1350,
as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:



| |  | Date: | November 6, 2002                                                                              
| |  | ----- | ----------------------------------------------------------------------------------------------
| |  |       | /s/GERALD R. CYSEWSKIChairman of the Board of Directors,
President and Chief Executive Officer

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CERTIFICATIONS

I,
Ronald P. Scott, Executive Vice President and Chief Financial Officer certify that:

1.    I
have reviewed this quarterly report on Form 10-Q of Cyanotech Corporation;

2.    Based
on my knowledge, this quarterly report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements
made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this quarterly report;

3.    Based
on my knowledge, the financial statements, and other financial information included in this quarterly report, fairly present in all material respects the financial
condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this quarterly report;

4.    The
registrant's other certifying officers and I are responsible for establishing and maintaining disclosure controls and procedures (as defined in Exchange Act
Rules 13a-14 and 15d-14) for the registrant and we have:



5.    The
registrant's other certifying officers and I have disclosed, based on our most recent evaluation, to the registrant's auditors and the audit committee of registrant's
board of directors (or persons performing the equivalent function):



6.    The
registrant's other certifying officers and I have indicated in this quarterly report whether or not there were significant changes in internal controls or in other
factors that could significantly affect internal controls subsequent to the date of our most recent evaluation, including any corrective actions with regard to significant deficiencies and material
weaknesses.

|Date: | /s/ November 8, 2002 |  | /s/RONALD P. SCOTTRonald P. Scott, Executive Vice
President and
Chief Financial Officer
|----- | -------------------- |  | ---------------------------------------------------------------------------------------

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Certification of the Executive Vice President and Chief Financial Officer  Pursuant to 18 U.S.C. 1350,  As Adopted Pursuant to  Section 906 of the Sarbanes-Oxley Act of 2002

In
connection with the Quarterly Report of Cyanotech Corporation (the "Company") on Form 10-Q for the period ended September 30, 2002 as filed with the
Securities and Exchange Commission on the date hereof (the "Report"), I, Ronald P. Scott, Executive Vice President and Chief Financial Officer of the
Company, certify, pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:



| |  | Date: | November 6, 2002                                                      
| |  | ----- | ----------------------------------------------------------------------
| |  |       | /s/RONALD P. SCOTTExecutive Vice President and
Chief Financial Officer

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