UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 ______________________

FORM 8-K

CURRENT REPORT
Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934

Date of Report (Date of earliest event reported)

April 2, 2015

Altair Nanotechnologies Inc.
(Exact name of registrant as specified in its charter)

Delaware		001-12497	33-1084375
(State or other jurisdiction of incorporation)		(Commission File Number)	(I.R.S. Employer Identification No.)

204 Edison Way, Reno, Nevada			89502
(Address of principal executive offices)			(Zip Code)

Registrant’s telephone number, including area code (775) 856-2500

N/A
(Former name or former address, if changed since last report.)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☐	Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
☐	Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
☐	Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
☐	Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13a-4(c))

Item 4.01. Changes in Registrant’s Certifying Accountant.

On April 2, 2015, Altair Nanotechnologies Inc. (the “Company”) appointed Marcum LLP (“Marcum”) as the Company’s new independent registered public accounting firm for the fiscal years ended December 31, 2013 and December 31, 2014.

During the Company’s two most recently completed fiscal years and through the date of the Company’s engagement of Marcum, neither the Company nor anyone on its behalf consulted with Marcum regarding (i) the application of accounting principles to a specified transaction, either completed or proposed; or the type of audit opinion that might be rendered on the Company’s financial statements, and neither a written report was provided to the Company nor oral advice was provided by Marcum that Marcum concluded was an important factor considered by the Company in reaching a decision as to accounting, auditing or financial reporting issues, or (ii) any matter that was either the subject of a disagreement (as defined in Item 304(a)(1)(iv) of Regulation S-K) or reportable event (as described in or Item 304(a)(1)(v) of Regulation S-K).

Signature

Pursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

	ALTAIR NANOTECHNOLOGIES INC.


Date: April 7, 2015	By:	/s/ Karen Werner
		Karen Werner, Interim Chief Financial Officer

ALTAIR NANOTECHNOLOGIES INC 8-K