UBS Securities LLC
                                   1285 Avenue of the Americas
                                      New York, NY 10019




September 6, 2022

Via Email: Countrymanv@sec.gov

Vanessa Countryman
United States Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549

Attention: Vanessa Countryman, Secretary of the SEC

Re:         Resignation by UBS Securities LLC

Dear Ms. Countryman:

UBS Securities LLC ("UBS") previously served as one of the underwriters for
Kensington Capital
Acquisition Corp. IV ("Kensington") in its initial public offering (the "IPO")
pursuant to the
underwriting agreement, dated on March 1, 2022. UBS has become aware that
Kensington's
registration statement originally filed on Form S-4 on June 21, 2022, including
any amendments
thereto (the "Registration Statement") has been declared effective without UBS'
prior knowledge.

Subsequent to the IPO, UBS did not participate in any aspect of the proposed
business combination
between Kensington and Amprius Technologies, Inc. (the "de-SPAC Transaction").
On September
6, 2022, UBS provided notice to Kensington that UBS is resigning, and ceasing
and refusing to act,
as underwriter in connection with the Registration Statement and the de-SPAC
Transaction.

This letter is being furnished by UBS to the Securities and Exchange Commission
pursuant to
Section 1 l(b) of the Securities Act of 1933, as amended (the "Securities
Act"), to disclaim any
responsibility by UBS for any part of the Registration Statement.

Please be advised that nothing herein is intended to constitute an
acknowledgment or admission,
and we expressly deny, that we have been or are an underwriter (within the
meaning of Section
2(a)(l 1) of the Securities Act or the rules and regulations promulgated
thereunder) with respect to
the de-SPAC Transaction.
 Please contact Carlos Alvarez at (212) 821-6883 or at carlos.alvarez@ubs.com
if you have any
questions or require further information.

Very truly yours,



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