Insider Trading Arrangements	3 Months Ended	9 Months Ended
	Sep. 30, 2023 shares	Sep. 30, 2023 shares
Trading Arrangements, by Individual
Non-Rule 10b5-1 Arrangement Adopted	false
Rule 10b5-1 Arrangement Terminated	false
Non-Rule 10b5-1 Arrangement Terminated	false
Sotheara Cheay [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On August 11, 2023, Sotheara Cheav, Senior Vice President, Manufacturing of ACM Shanghai, adopted a Rule 10b5-1 trading arrangement (the “Cheav Plan”) that is intended to satisfy the affirmative defense of Rule 10b5-1(c) of the Exchange Act. The Cheav Plan allows for the contemporaneous exercise of options and sale of up to 26,000 shares of Class A common stock, at specific market prices, commencing on November 10, 2023, and continuing until (i) all such options are exercised and the underlying shares are sold, (ii) November 8, 2024, or (iii) such date that the Cheav Plan is otherwise terminated according to its terms, whichever comes first.
Name	Sotheara Cheav
Title	Senior Vice President, Manufacturing of ACM Shanghai
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	August 11, 2023
Arrangement Duration	364 days
Aggregate Available	26,000	26,000
Tracy Liu [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On August 21, 2023, Tracy Liu, a member of the Board of Directors of ACM Research, adopted a Rule 10b5-1 trading arrangement (the “Liu Plan”) that is intended to satisfy the affirmative defense of Rule 10b5-1(c) of the Exchange Act. The Liu Plan allows for the contemporaneous exercise of options and sale of up to 37,500 shares of Class A common stock, at specific market prices, commencing on November 20, 2023, and continuing until (i) all such options are exercised and the underlying shares are sold, (ii) August 21, 2024, or (iii) such date that the Liu Plan is otherwise terminated according to its terms, whichever comes first.
Name	Tracy Liu
Title	member of the Board of Directors of ACM Research
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	August 21, 2023
Arrangement Duration	275 days
Aggregate Available	37,500	37,500
Lisa Feng [Member]
Trading Arrangements, by Individual
Material Terms of Trading Arrangement		On September 14, 2023, Lisa Feng, Chief Financial Officer of ACM Shanghai, adopted a Rule 10b5-1 trading arrangement (the “Feng Plan”) that is intended to satisfy the affirmative defense of Rule 10b5-1(c) of the Exchange Act. The Feng Plan allows for the contemporaneous exercise of options and sale of up to 15,000 shares of Class A common stock, at specific market prices, commencing on December 14, 2023, and continuing until (i) all such options are exercised and the underlying shares are sold, (ii) September 13, 2024, or (iii) such date that the Feng Plan is otherwise terminated according to its terms, whichever comes first.
Name	Lisa Feng
Title	Chief Financial Officer of ACM Shanghai
Rule 10b5-1 Arrangement Adopted	true
Adoption Date	September 14, 2023
Arrangement Duration	274 days
Aggregate Available	15,000	15,000