XML 42 R31.htm IDEA: XBRL DOCUMENT v3.23.3
DESCRIPTION OF BUSINESS (Tables)
 9 Months Ended
Sep. 30, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]  
Direct or Indirect Interests of Subsidiaries
The Company has direct or indirect interests in the following subsidiaries:
Effective interest held as at
Name of subsidiariesPlace and date of incorporationSeptember 30,
2023		December 31,
2022
ACM Research (Shanghai), Inc.
Mainland China, May 2005
82.1 %82.5 %
ACM Research (Wuxi), Inc.
Mainland China, July 2011
82.1 %82.5 %
CleanChip Technologies LimitedHong Kong, June 201782.1 %82.5 %
ACM Research Korea CO., LTD.Korea, December 201782.1 %82.5 %
ACM Research (Lingang), Inc. (1)
Mainland China, March 2019
82.1 %82.5 %
ACM Research (CA), Inc.USA, April 201982.1 %82.5 %
ACM Research (Cayman), Inc.Cayman Islands, April 2019100.0 %100.0 %
ACM Research (Singapore) PTE. Ltd.
Singapore, August 2021100.0 %100.0 %
ACM Research (Beijing), Inc.
Mainland China,, February 2022
82.1 %82.5 %
Hanguk ACM CO., LTD.Korea, March 2022100.0 %100.0 %
Yusheng Micro Semiconductor (Shanghai) Co., Ltd
Mainland China, June 2023
82.1 %— %
ACM-Wooil Microelectronics (Shanghai) Co., Ltd
Mainland China, June 2023
59.4 %— %
(1)ACM Research (Lingang) Inc. is the English name referred to by its Chinese language name Shengwei Research (Shanghai), Inc. in prior filings. ACM Research (Lingang), Inc. and Shengwei Research (Shanghai), Inc. refer to the same entity.