December 3, 2024

VIA EDGAR

Office of Real Estate & Construction

Division of Corporation Finance

U.S. Securities and Exchange Commission

100 F Street, NE

Washington, D.C. 20549

Attn: William Demarest Jennifer Monick Catherine De Lorenzo Pam Long

Re: Artius II Acquisition Inc. Registration Statement on Form S-1, as amended File No.: 333-283020

Dear Mr. Demarest, Ms. Monick, Ms. De Lorenzo and Ms. Long:

Pursuant to Rule 461 of the General Rules and Regulations under the Securities Act of 1933, as amended, Artius II Acquisition Inc. (the “Company”) hereby requests that the effective date of the Company’s Registration Statement on Form S-1 (File No.: 333-283020) (the “Registration Statement”) be accelerated by the Securities and Exchange Commission so that the Registration Statement will become effective at 4:00 p.m. Eastern Standard Time on December 5, 2024, or as soon as practicable thereafter. The Company hereby authorizes David I. Gottlieb of Cleary Gottlieb Steen & Hamilton LLP, counsel to the Company, to modify or withdraw this request for acceleration orally. By separate letter, the underwriters of the issuance of the securities being registered join in this request for acceleration.

The Company requests that we be notified of such effectiveness by a telephone call to Mr. Gottlieb at +44 20 7614 2230 and that such effectiveness also be confirmed in writing.

Very truly yours,
Artius II Acquisition Inc.
By:	/s/ Boon Sim
	Name:	Boon Sim
	Title:	Chief Executive Officer

cc: David I. Gottlieb, Esq. Cleary Gottlieb Steen & Hamilton LLP   Paul J. Shim Cleary Gottlieb Steen & Hamilton LLP