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

Keystone Acquisition Corp.
Date: May 29, 2026 · CIK: 0002102771 · Accession: 0001213900-26-062648

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File numbers found in text: 333-295539

Date
May 29, 2026
Author
Jerry Serowik
Form
CORRESP
Company
Keystone Acquisition Corp.

Letter

Re: Keystone Acquisition Corp. Registration Statement on Form S-1 File No. 333-295539

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

Ladies and Gentlemen:

Pursuant to Rule 461 under the Securities Act of 1933, as amended (the "Act"), the undersigned hereby joins in the request of Keystone Acquisition Corp. that the effective date of the above- referenced Registration Statement be accelerated so as to permit it to become effective at 4:00 p.m. ET on June 2, 2026, or as soon as thereafter practicable.

Pursuant to Rule 460 of the General Rules and Regulations under the Act, the undersigned wishes to advise you that there will be distributed to each underwriter or dealer, who is reasonably anticipated to participate in the distribution of the security, as many copies of the proposed form of preliminary prospectus as appears to be reasonable to secure adequate distribution of the preliminary prospectus.

The undersigned advises that it has complied and will continue to comply with the requirements of Rule 15c2-8 under the Securities and Exchange Act of 1934, as amended.

[ signature page follows ]

Very truly yours,
COHEN & COMPANY CAPITAL MARKETS, A DIVISION OF COHEN & COMPANY SECURITIES, LLC

Show Raw Text
CORRESP
 1
 filename1.htm

 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

 Re: Keystone Acquisition Corp.
Registration Statement on Form S-1
File No. 333-295539

 Ladies and Gentlemen:

 Pursuant to Rule 461 under
the Securities Act of 1933, as amended (the "Act"), the undersigned hereby joins in the request of Keystone Acquisition Corp.
that the effective date of the above- referenced Registration Statement be accelerated so as to permit it to become effective at 4:00
p.m. ET on June 2, 2026, or as soon as thereafter practicable.

 Pursuant to Rule 460 of the
General Rules and Regulations under the Act, the undersigned wishes to advise you that there will be distributed to each underwriter or
dealer, who is reasonably anticipated to participate in the distribution of the security, as many copies of the proposed form of preliminary
prospectus as appears to be reasonable to secure adequate distribution of the preliminary prospectus.

 The undersigned advises that
it has complied and will continue to comply with the requirements of Rule 15c2-8 under the Securities and Exchange Act of 1934, as amended.

 [ signature page follows ]

 Very truly yours,

 COHEN & COMPANY CAPITAL MARKETS, A DIVISION OF COHEN & COMPANY SECURITIES, LLC

 /s/ Jerry Serowik

 Name: Jerry Serowik

 Title: Head of Cohen & Company Capital Markets

 [Signature page to Underwriter's Acceleration Request]