Shanghai Science & Technology Venture Capital Form 3 Initial statement of insider ownership

Joint Filer Information

Names:	Shanghai Pudong Science and Technology Investment Group Co., Ltd.
Address:	Floor 16-17, #118 Rongke Road
	Pudong District, Shanghai, People’s Republic of China 201203
Designated Filer:	Shanghai Science and Technology Venture Capital (Group) Co., Ltd.
Issuer and Ticker Symbol:	ACM Research, Inc. [ACMR]
Date of Event Requiring Statement:	May 29, 2023

The undersigned, Shanghai Pudong Science and Technology Investment Group Co., Ltd., is jointly filing the attached Initial Statement of Beneficial Ownership on Form 3 with Shanghai Science and Technology Venture Capital (Group) Co., Ltd. with respect to the beneficial ownership of securities of ACM Research, Inc.

Signatures:

SHANGHAI PUDONG SCIENCE AND TECHNOLOGY INVESTMENT GROUP CO., LTD.

By: /s/ Guangda Liu

Name: Gyangda Liu

Title: Authorized Representative