JOINT FILING AGREEMENT
PURSUANT TO RULE 13d-1(k)(1)
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The undersigned acknowledge and agree that the foregoing Statement on
Schedule 13D is filed on behalf of each of the undersigned and that all
subsequent amendments to such statement on Schedule 13D shall be filed on behalf
of each of the undersigned without the necessity of filing additional joint
filing agreements. The undersigned acknowledge that each shall be responsible
for the timely filing of such amendments, and for the completeness and accuracy
of the information concerning it contained therein, but shall not be responsible
for the completeness and accuracy of the information concerning the others,
except to the extent that it knows or has reason to believe that such
information is inaccurate. This Agreement may be executed in any number of
counterparts and all of such counterparts taken together shall constitute one
and the same instrument.
Dated: September 28, 2001
WARBURG, XXXXXX EQUITY PARTNERS, L.P.
By: Warburg, Xxxxxx & Co.,
General Partner
By: /s/ Xxxxxx X. Xxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxx
Title: General Partner
WARBURG, XXXXXX NETHERLANDS
EQUITY PARTNERS I, C.V.
By: Warburg, Xxxxxx & Co.,
General Partner
By: /s/ Xxxxxx X. Xxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxx
Title: General Partner
WARBURG, XXXXXX NETHERLANDS
EQUITY PARTNERS II, C.V.
By: Warburg, Xxxxxx & Co.,
General Partner
By: /s/ Xxxxxx X. Xxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxx
Title: General Partner
WARBURG, XXXXXX NETHERLANDS
EQUITY PARTNERS III, C.V.
By: Warburg, Xxxxxx & Co.,
General Partner
By: /s/ Xxxxxx X. Xxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxx
Title: General Partner
WARBURG, XXXXXX & CO.
By: /s/ Xxxxxx X. Xxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxx
Title: General Partner
WARBURG PINCUS LLC
By: /s/ Xxxxxx X. Xxxxxxxxx
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Name: Xxxxxx X. Xxxxxxxxx
Title: Member and Managing Director