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SEC Company Response from Keystone Acquisition (KEYY) — May 29, 2026

Keystone Acquisition Corp.
Date: May 29, 2026 · CIK: 0002102771 · Accession: 0001213900-26-062644

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File numbers found in text: 333-295539

Date
May 29, 2026
Author
/s/ Richard Chin
Form
CORRESP
Company
Keystone Acquisition Corp.

Letter

VIA EDGAR Securities and Exchange Commission Division of Corporation Finance Office of Real Estate & Construction Attention: Benjamin Holt Re: Keystone Acquisition Corp. Registration Statement on Form S-1 File No. 333-295539

Dear Mr. Holt:

Pursuant to Rule 461 under the Securities Act of 1933, as amended, Keystone Acquisition Corp. (the "Company") hereby requests acceleration of the effective date of the above referenced Registration Statement to 4:00 p.m., Eastern Time, on June 2, 2026, or as soon thereafter as practicable, or at such other time as the Company or its outside counsel, Pillsbury Winthrop Shaw Pittman LLP, requests by telephone that such Registration Statement be declared effective.

Please contact Stephen C. Ashley, of Pillsbury Winthrop Shaw Pittman LLP, special counsel to the Company, at (212) 858-1101, as soon as the registration statement has been declared effective, or if you have any other questions or concerns regarding this matter.

Sincerely,
/s/ Richard Chin

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CORRESP
 1
 filename1.htm

 Keystone Acquisition Corp.

 142 West 57 th Street

 11 th Floor

 New York, New York 10019

 May 29, 2026

 VIA EDGAR

 Securities and Exchange Commission

 Division of Corporation Finance

 Office of Real Estate & Construction

 100 F Street, N.E.

 Washington, D.C. 20549

 Attention: Benjamin Holt

 Re:
 Keystone Acquisition Corp.

 Registration Statement on Form S-1

 File No. 333-295539

 Dear Mr. Holt:

 Pursuant to Rule 461 under the Securities Act
of 1933, as amended, Keystone Acquisition Corp. (the "Company") hereby requests acceleration of the effective date of the
above referenced Registration Statement to 4:00 p.m., Eastern Time, on June 2, 2026, or as soon thereafter as practicable, or at such
other time as the Company or its outside counsel, Pillsbury Winthrop Shaw Pittman LLP, requests by telephone that such Registration Statement
be declared effective.

 Please contact Stephen C.
Ashley, of Pillsbury Winthrop Shaw Pittman LLP, special counsel to the Company, at (212) 858-1101, as soon as the registration statement
has been declared effective, or if you have any other questions or concerns regarding this matter.

 Sincerely,

 /s/ Richard Chin

 Richard Chin

 Chief Executive Officer