December 5, 2024

VIA EDGAR

U.S. Securities and Exchange Commission

Division of Corporation Finance

Office of Real Estate & Construction

100 F Street N.E.

Washington, D.C. 20549

Attention:	William Demarest
	Jennifer Monick
	Catherine De Lorenzo
	Pam Long
	Re:	Artius II Acquisition Inc. (the “Company”)
		Registration Statement on Form S-1
		File No. 333-283020

Ladies and Gentleman:

We hereby withdraw our prior acceleration request, dated December 3, 2025, with respect to the above-referenced Registration Statement.

[Signature Pages Follow]

Very truly yours,
SANTANDER US CAPITAL MARKETS LLC
By:	/s/ Ryan Kelley
	Name: Ryan Kelley
	Title: Managing Director
By:	/s/ Conrad Rubin
	Name: Conrad Rubin
	Title: Managing Director

As Representative of the several underwriters

cc:	Gregg A. Noel, Skadden, Arps, Slate, Meagher & Flom LLP
	Brian D. Paulson, Skadden, Arps, Slate, Meagher & Flom LLP

[Signature Page to Acceleration Request Letter]