PURCHASE AGREEMENT
                               ------------------

                  Credit Suisse Warburg Pincus Focus Fund, Inc. (the "Fund"), a
corporation organized under the laws of the State of Maryland, and Credit Suisse
Asset Management, LLC ("CSAM") hereby agree as follows:

                  1. The Fund offers CSAM and CSAM hereby purchases three shares
of common stock of the Fund, which shall consist of one share designated as a
Class A share, one share designated as a Class B share and one share designated
as a Class C share, each having a par value of $.001 per share, each at a price
of $14.67 per Share (the "Initial Shares"), the Fund agreeing to waive the
initial sales charge and contingent deferred sales charge on such purchase. CSAM
hereby acknowledges receipt of certificates representing the Initial Shares and
the Fund hereby acknowledges receipt from CSAM of $44.01 in full payment for the
Initial Shares.

                  2. CSAM represents and warrants to the Fund that the Initial
Shares are being acquired for investment purposes and not for the purpose of
distributing them.

                  3. CSAM agrees that if any holder of an Initial Share redeems
such Share in the Fund before one year after the date upon which the relevant
Class of the Fund commences its investment activities, the redemption proceeds
will be reduced by the amount of unamortized organizational and offering
expenses of that Class.





                  IN WITNESS WHEREOF, the parties hereto have executed this
Agreement as of the 29th day of June, 2001.

                               CREDIT SUISSE WARBURG PINCUS FOCUS FUND, INC.


                               By: /s/Michael A. Pignataro
                                   -----------------------
                                   Name: Michael A. Pignataro
                                   Title: Treasurer and Chief Financial Officer

ATTEST:

/s/Gregory Bressler

                               CREDIT SUISSE ASSET MANAGEMENT, LLC


                               By: /s/Hal Liebes
                                   --------------
                                   Name: Hal Liebes
                                   Title: Managing Director

ATTEST:

/s/Gregory Bressler
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