SEGMENT INFORMATION

6 Months Ended

Jun. 30, 2023

Segment Reporting [Abstract]

SEGMENT INFORMATION

SEGMENT INFORMATION

The Company is engaged in the development, manufacture and sale of single-wafer wet cleaning equipment, which have been organized as one reporting segment as the equipment has substantially similar nature and economic characteristics. The Company’s principal operating decision maker, ACM’s Chief Executive Officer, receives and reviews the results of the operations for all major type of equipment as a whole when making decisions about allocating resources and assessing performance of the Company.

For geographical reporting, revenue by geographic location is determined by the location of customers’ facilities to which products were shipped. Long-lived assets consist primarily of property, plant and equipment, other long-term assets, and right-of-use assets and are attributed to the geographic location in which they are located.

The balance of selected long-lived assets by geography as of June 30, 2023 and December 31, 2022 are presented in the following table:

	June 30, 2023		December 31, 2022
Long-lived assets by geography:
Mainland China	$	164,540	$	140,481
South Korea	12,721		3,830
United States	1,239		10
Total	$	178,500	$	144,321