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ACM Research Inc

For the period ended Dec 31, 2023. Filed Feb 28, 2024.

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About this filing

A company's yearly report to the SEC, with audited financial statements. It is the fullest account a company gives of its business, its finances and the risks it sees.

FY2023 · Filed Feb 28, 2024

ACMR$48.67-2.2%Stored close · as of Nov 10, 2026

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Contents

Item 8. Financial Statements and Supplementary Data

INDEX TO CONSOLIDATED FINANCIAL STATEMENTS

Page
Consolidated Financial Statements83
Report of Independent Registered Public Accounting Firm (Ernst & Young Hua Ming LLP, Shanghai, China, PCAOB ID#1408)84
Report of Independent Registered Public Accounting Firm (Armanino LLP , San Ramon, CA, PCAOB ID#32)87
Report of Independent Registered Public Accounting Firm (BDO China Shu Lun Pan Certified Public Accountants LLP, Shenzhen, China, PCAOB ID#1818)88
Consolidated Balance Sheets as of December 31, 2023 and 202289
Consolidated Statements of Comprehensive Income (Loss) for the Years ended December 31, 2023, 2022, and 202190
Consolidated Statements of Changes in Stockholders’ Equity for the Years ended December 31, 2023, 2022, and 202191
Consolidated Statements of Cash Flows for the Years ended December 31, 2023, 2022, and 202192
Notes to Consolidated Financial Statements93

To the Shareholders and the Board of Directors of ACM Research, Inc.

Opinion on the Financial Statements

We have audited the accompanying consolidated balance sheet of ACM Research, Inc. (the Company) as of December 31, 2023, the related consolidated statements of comprehensive income, changes in stockholders' equity and cash flows for the year ended December 31, 2023, and the related notes (collectively referred to as the “consolidated financial statements”). In our opinion, the consolidated financial statements present fairly, in all material respects, the financial position of the Company at December 31, 2023, and the results of its operations and its cash flows for the year ended December 31, 2023, in conformity with U.S. generally accepted accounting principles.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the Company's internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control-Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) and our report dated February 28, 2024 expressed an unqualified opinion thereon.

These financial statements are the responsibility of the Company's management. Our responsibility is to express an opinion on the Company’s financial statements based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audits in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement, whether due to error or fraud. Our audit included performing procedures to assess the risks of material misstatement of the financial statements, whether due to error or fraud, and performing procedures that respond to those risks. Such procedures included examining, on a test basis, evidence regarding the amounts and disclosures in the financial statements. Our audit also included evaluating the accounting principles used and significant estimates made by management, as well as evaluating the overall presentation of the financial statements. We believe that our audit provides a reasonable basis for our opinion.

Critical Audit Matter

The critical audit matter communicated below is a matter arising from the current period audit of the financial statements that was communicated or required to be communicated to the audit committee and that: (1) relates to accounts or disclosures that are material to the financial statements and (2) involved our especially challenging, subjective or complex judgments. The communication of the critical audit matter does not alter in any way our opinion on the consolidated financial statements, taken as a whole, and we are not, by communicating the critical audit matter below, providing separate opinions on the critical audit matter or on the accounts or disclosures to which it relates.

Revenue Recognition
Description of the MatterAs described in Notes 2 to the consolidated financial statements, the Company recognizes revenue from tools and spare parts at a point in time, when the Company has satisfied its performance obligation. For shipments made to a customer that has not previously accepted a specific type of tool (“first tools”), revenues are recognized when the tools are accepted by the customer. For shipments made to a customer that have previously accepted a specific type of tool (“repeat shipments”), revenues are recognized upon shipment or delivery because the Company can objectively demonstrate that the tools meet all the required customer specifications.Evaluating the sufficiency of audit evidence to validate whether the Company can objectively identify repeat shipments required auditor judgment and significant audit effort because the Company’s tools are highly customized for each customer.
How We Addressed the Matter in Our AuditWe obtained an understanding, evaluated the design and tested the operating effectiveness of controls over the Company’s revenue process. For example, we tested the controls over management’s review of the Company’s analysis to determine whether the repeat shipments identified have been previously accepted by the same customer.To test whether the Company can objectively demonstrate that the highly customized tools are repeat shipments, our audit procedures, among others, included performing direct inquiries with the Company’s personnel from its sales and engineering department to understand the Company’s process of identifying repeat shipments and the quality control department to understand the quality control process. We applied auditor judgment to determine the nature and extent of procedures to be performed by testing all the sales transactions identified as repeat shipments during the year. Specifically for all repeat shipments, we obtained the quality control reports signed by the Company’s quality control department. We also identified the similar tools previously sold to and accepted by the same customer by comparing the executed contracts or purchase orders of both tools, and inspected the acceptance confirmation from the customer of the previous tools to verify that the Company was able to objectively demonstrate that repeat shipments meet all the required customer specifications with its established history of customer acceptance. We evaluated the overall sufficiency of audit evidence obtained by assessing the results of procedures performed over repeat shipments, including the appropriateness of the nature and extent of audit effort.

/s/ Ernst & Young Hua Ming LLP

We have served as the Company's auditor since 2023.

Shanghai, the People’s Republic of China

February 28, 2024

To the Shareholders and the Board of Directors of ACM Research, Inc.

Opinion on Internal Control Over Financial Reporting

We have audited ACM Research, Inc.’s internal control over financial reporting as of December 31, 2023, based on criteria established in Internal Control—Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (2013 framework) (the COSO criteria). In our opinion, ACM Research, Inc. (the Company) maintained, in all material respects, effective internal control over financial reporting as of December 31, 2023, based on the COSO criteria.

We also have audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States) (PCAOB), the consolidated balance sheet of the Company as of December 31, 2023, the related consolidated statements of comprehensive income, changes in stockholders' equity and cash flows for the year ended December 31, 2023, and the related notes and our report dated February 28, 2024 expressed an unqualified opinion thereon.

The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting included in the accompanying Management’s Report on Internal Control Over Financial Reporting. Our responsibility is to express an opinion on the Company’s internal control over financial reporting based on our audit. We are a public accounting firm registered with the PCAOB and are required to be independent with respect to the Company in accordance with the U.S. federal securities laws and the applicable rules and regulations of the Securities and Exchange Commission and the PCAOB.

We conducted our audit in accordance with the standards of the PCAOB. Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects.

Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testing and evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considered necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.

Definition and Limitations of Internal Control Over Financial Reporting

A company’s internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’s internal control over financial reporting includes those policies and procedures that (1) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’s assets that could have a material effect on the financial statements.

Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements. Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may become inadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

/s/ Ernst & Young Hua Ming LLP

Shanghai, the People’s Republic of China

February 28, 2024

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