Calypte Biomedical Corp (fka CYPT)

[scion]

Agreement for Commitment to Purchase Aggregate of $10,000,000 of 5% Promissory Notes


November 13, 2003

Calypte Biomedical Corporation
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Ticker: CYPT
Exchange: OTC Bulletin Board


Agreement for Commitment to Purchase Aggregate of
$10,000,000 of 5% Promissory Notes


Securities: 5% Notes, each with 12 month term (the "Notes")
---------- of the Issuer

Issuer: Calypte Biomedical Corporation (the "Issuer")
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Purchaser: Marr Technologies, B.V.
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Commitment Amount: $10,000,000
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Use of Proceeds: General Corporate Purposes
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This agreement is executed and binding as of this 13th day of November 2003.

Calypte Biomedical Corporation
("Issuer") A Delaware Corporation

By: /s/ Jay Oyakawa
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Title: President and CEO
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Marr Technologies, B.V.
("Purchaser")

By: /s/ J.K. Basnet
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Title: Authorised Signatory
..................................................

Janak K. Basnet, a director of Marr Technologies Limited and Marr Group Holdings Limited, has sole voting and dispositive power with respect to 2,432,095 or approximately 1.8% of the 136,381,689 shares of common stock of the Company outstanding.