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 26, 2018

ACM Research, Inc.

(Exact name of registrant as specified in its charter)

Delaware	001-38273	94-3290283
(State or Other Jurisdiction of Incorporation or Organization)	(Commission File Number)	(I.R.S. Employer Identification No.)

42307 Osgood Road, Suite I, Fremont, California 94539

(Address of principal executive offices) (Zip code)

Registrant’s telephone number, including area code: (510) 445-3700

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 240.13e-4(c))

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☑

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☑

Item 1.01 Entry into a Material Definitive Agreement.

We conduct our research and development and manufacturing and service support operations in a facility of approximately 63,000 square feet located in the Zhangjiang Hi-Tech Park in Shanghai, PRC. We have leased this facility from Zhangjiang Group, Ltd. since 2007. The lease expired on December 31, 2017.

On April 26, 2018, we entered into a renewed lease with Zhangjiang Group, Ltd. for the period from January 1, 2018 through December 31, 2022. Under the lease, we will pay a monthly rental fee of approximately RMB366,000 (approximately US$58,000, based on the RMB per U.S. dollar exchange rate as of May 1, 2018).

SIGNATURE

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

	ACM RESEARCH, INC.
Dated: May 1, 2018	By:	/s/ David H. Wang
		David H. Wang
		Chief Executive Officer and President