[CHIRON LETTERHEAD]
February 14, 2001
PERSONAL AND CONFIDENTIAL
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San Francisco, California 94133
Re: AMENDMENT OF CONSULTING AGREEMENT DATED FEBRUARY 25, 2000
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Dear ▇▇▇▇,
I am pleased to confirm our discussions to extend your agreement to work with
Chiron Corporation through February 24, 2002.
Your fee will be $8,333.33 per month, payable to you monthly in advance, for the
period commencing on February 25, 2001 and terminating on February 24, 2002.
In addition, the field of the agreement is hereby amended to cover advice and
consultation from time to time to the Chairman and Chief Executive Officer with
respect to corporate and strategic matters.
Please acknowledge your acceptance and agreement to the foregoing by signing and
returning to me a copy of the enclosed letter.
Yours sincerely,
/s/ ▇▇▇▇
▇▇▇▇ ▇. ▇▇▇▇▇
Chairman and Chief Executive Officer
AGREED THIS 20th DAY OF FEBRUARY 2001.
/s/ ▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇
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▇▇▇▇▇▇▇ ▇. ▇▇▇▇▇▇, Ph.D.
