Hennessy Capital Investment Corp. VI (HCVI) SC 13G Hennessy Capital Investment Corp. VI / D. E. SHAW & CO ownership change

Exhibit 3

JOINT FILING AGREEMENT

In accordance with Rule 13d-1(k)(1) under the Securities Exchange Act of 1934, as amended, each of the undersigned Reporting Persons hereby agrees to the joint filing, along with all other such Reporting Persons, on behalf of each of them of a statement on Schedule 13G (including amendments thereto) with respect to the Units, each consisting of one share of Class A common stock, par value $0.0001 per share, and one-third of one Redeemable Warrant, of Hennessy Capital Investment Corp. VI, and that this Agreement be included as an Exhibit to such joint filing. This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument.

IN WITNESS WHEREOF, each of the undersigned hereby executes this Agreement as of this 12^th day of October, 2021.

D. E. Shaw Valence Portfolios, L.L.C.
By:	/s/ Nathan Thomas
	Nathan Thomas
	Authorized Signatory

D. E. Shaw & Co., L.L.C.
By:	/s/ Nathan Thomas
	Nathan Thomas
	Authorized Signatory

D. E. Shaw & Co., L.P.
By:	/s/ Nathan Thomas
	Nathan Thomas
	Chief Compliance Officer

David E. Shaw
By:	/s/ Nathan Thomas
	Nathan Thomas
	Attorney-in-Fact for David E. Shaw