As filed with the U.S. Securities and Exchange Commission on February 12, 2025

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 8-A

FOR REGISTRATION OF CERTAIN CLASSES OF SECURITIES

PURSUANT TO SECTION 12(b) OR 12(g) OF THE

SECURITIES EXCHANGE ACT OF 1934

ARTIUS II ACQUISITION INC.

(Exact name of registrant as specified in its charter)

Cayman Islands	98-1802901
(State or other Jurisdiction of Incorporation or Organization)	(I.R.S. Employer Identification No.)
3 Columbus Circle, Suite 1609
New York, NY	10019
(Address of principal executive office)	(Zip Code)

Securities to be registered pursuant to Section 12(b) of the Act:

Title of each class to be so registered	Name of each exchange on which each class is to be registered
Units, each consisting of one Class A ordinary share and one right	The Nasdaq Stock Market LLC
Class A ordinary shares, par value $0.0001 per share	The Nasdaq Stock Market LLC
Rights, each entitling the holder thereof to receive one-tenth of one Class A ordinary share upon the completion of an initial business combination	The Nasdaq Stock Market LLC

If this form relates to the registration of a class of securities pursuant to Section 12(b) of the Exchange Act and is effective pursuant to General Instruction A.(c) or (e), check the following box. ☒

If this form relates to the registration of a class of securities pursuant to Section 12(g) of the Exchange Act and is effective pursuant to General Instruction A.(d) or (e), check the following box. ☐

If this form relates to the registration of a class of securities concurrently with a Regulation A offering, check the following box. ☐

Securities Act registration statement or Regulation A offering statement file number to which this form relates: 333-283020

Securities to be registered pursuant to Section 12(g) of the Act: None

Item 1. Description of Registrant’s Securities to be Registered.

The securities to be registered hereby are units, Class A ordinary shares, par value $0.0001 per share, and rights to receive Class A ordinary shares, par value $0.0001 per share, of Artius II Acquisition Inc. (the “Registrant”). The description of the units, Class A ordinary shares and rights set forth under the heading “Description of Securities” in the Registrant’s prospectus forming a part of its Registration Statement on Form S-1 (File No. 333-283020), originally filed with the U.S. Securities and Exchange Commission on November 6, 2024, as thereafter amended and supplemented from time to time (the “Registration Statement”), to which this Form 8-A relates is incorporated by reference herein. Any form of prospectus or prospectus supplement to the Registration Statement that includes such descriptions and that are subsequently filed are hereby also incorporated by reference herein.

Item 2. Exhibits.

Pursuant to the Instructions as to Exhibits for Form 8-A, no exhibits are required to be filed, because no other securities of the Registrant are registered on The Nasdaq Stock Market, and the securities registered hereby are not being registered pursuant to Section 12(g) of the Securities Exchange Act of 1934, as amended.

SIGNATURE

Pursuant to the requirements of Section 12 of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this registration statement to be signed on its behalf by the undersigned, thereunto duly authorized.

Date:	February 12, 2025
		ARTIUS II ACQUISITION INC.
		By:	/s/ Boon Sim
			Boon Sim
			Chief Executive Officer and Chief Financial Officer