Securities code: 688777 Securities abbreviation: ZKTeco Announcement No.: 2025-006

SUPCON Technology Co., Ltd

Announcement on the renewal of the appointment of the accounting firm for 2025

The board of directors and all directors of the company guarantee that there are no false records, misleading statements or material omissions in the content of the announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Important Content Notes:

Name of accounting firm to be hired: Tianjian Certified Public Accountants (Special General Partnership) (hereinafter referred to as "Tianjian")

1. The basic information of the accounting firm to be employed

(1) Institutional information

1. Basic information

Name of Firm: Tianjian Certified Public Accountants (Special General Partnership)

Date of Establishment: July 18, 2011 Form of Organization: Special General Partnership

Registered address: No. 128, Xixi Road, Lingyin Street, Xihu District, Hangzhou, Zhejiang Province

Senior Partner Zhong Jianguo At the end of last year, the number of partners was 241

At the end of the previous year, there were 2,356 certified public accountants

Number of employees 904 certified public accountants who have signed the audit report of securities service business

In 2023 (the total business income of the audited business is 3.483 billion yuan

Business income Audit business income was 3.099 billion yuan

The income from securities business was 1.840 billion yuan

The number of customers is 707

The total audit fee is $720 million

Manufacturing, information transmission, software and information technology services

industry, wholesale and retail trade, water conservancy, environment and public utilities

In 2024, it will be listed in the public management industry, electricity, heat, gas and water production and

Division (including A and B shares) Involved in the main industries of supply, scientific research and technical services, leasing and

Audit of business services, finance, real estate, transportation

Transportation, storage and postal services, mining, agriculture, forestry, animal husbandry,

Fishery, Culture, Sports and Entertainment, Construction, Comprehensive

Accommodation, Accommodation and Catering, Health and Social Work, etc

The number of audit clients of the company's listed companies in the same industry is 51

2. Investor protection ability

Tianjian Certified Public Accountants (Special General Partnership) has good investor protection capabilities, and has withdrawn occupational risk funds and purchased occupational insurance in accordance with the requirements of relevant laws and regulations. As of the end of 2024, the cumulative compensation limit of the occupational risk fund and the occupational insurance purchased has exceeded 200 million yuan, and the withdrawal of the occupational risk fund and the purchase of occupational insurance are in accordance with the relevant provisions of the Ministry of Finance on the "Measures for the Management of Occupational Risk Funds for Accounting Firms" and other documents.

In the past three years, Tianjian has borne civil liability in civil litigation related to its professional conduct. In the past three years, Tianjian has been judged to bear civil liability in relevant civil litigation due to its professional conduct as follows:

Plaintiff Defendant Time of the case Main facts of the case Progress of the litigation

Tianjian as Huayi Electric

Ended (Tianjian

2017, 2019

Required at 5% range

Annual Report Auditor, Inhua

Huayi Electric, Wai Nei and Huayi

Yidian is suspected of financial manufacturing

Investor Tokai Securities, March 6, 2024 Electric Undertaking Company

False, false in subsequent securities

Tianjian is responsible, Tianjian

Stated in the litigation case

Fulfilled on schedule

As a co-defendant, it is required to undertake

Verdict)

Joint and several liability.

The above-mentioned cases have been concluded, and Tianjian has fulfilled the final judgment on schedule, which will not have any adverse impact on the firm's ability to perform.

3. Integrity record

Tianjian Certified Public Accountants (Special General Partnership) has been in the past three years (January 1, 2022 to December 2024

On March 31, he received 4 administrative penalties, 13 supervision and management measures, and 8 self-discipline and supervision measures for his professional conduct

2 disciplinary actions, no criminal penalties. 67 practitioners have been convicted of their professional conduct in the past three years

12 administrative penalties, 32 supervision and management measures, 24 self-discipline and supervision measures, and 13 disciplinary sanctions

person, no criminal punishment has been imposed.

(ii) Project information

1. Basic information of the project

Project Partner and Signatory CPA: Ye Weimin, a certified public accountant since 2002, has been engaged in the audit of listed companies since 2000, has been practicing in the firm since 2002, and has been providing audit services for the company since 2022; Signed or reviewed the audit reports of 13 listed companies in the past three years.

Signing Certified Public Accountant: Peng Haowei, who has been a certified public accountant since 2019, has been engaged in the audit of listed companies since 2015, has been practicing in this firm since 2019, and has been providing audit services for the company since 2025; Failure to sign or review the audit report of the listed company in the past three years.

Project quality reviewer: Chen Lingling, a certified public accountant since 2014, has been engaged in the audit of listed companies since 2016, has been practicing in the firm since 2014, and has provided audit services for the company since 2025; Signed or reviewed the audit report of 1 listed company in the past three years.

2. Integrity record

In the past three years, the project partners, signatory certified public accountants, and project quality reviewers have not been subject to criminal penalties for their professional conduct, administrative penalties, supervision and management measures by the China Securities Regulatory Commission, its dispatched agencies, industry authorities, etc., or self-regulatory measures and disciplinary actions by self-regulatory organizations such as stock exchanges and industry associations.

3. Independence

Tianjian Certified Public Accountants (Special General Partnership) and the project partners, signatory certified public accountants, and project quality reviewers do not have any circumstances that may affect their independence.

4. Audit fees

The company's audit fee for 2024 is RMB1.54 million, of which the financial report audit fee is 132

10,000 yuan, and the internal control audit fee was 220,000 yuan. The 2025 audit fee pricing principle is mainly based on various factors such as the size of the company's business, the industry in which it operates, and the complexity of the accounting treatment, and is determined based on the staffing and workload of the auditor, as well as the firm's fee schedule.

The board of directors of the company proposes to the general meeting of shareholders to authorize the company's management to negotiate with the audit institution to determine the audit fee (including the audit fee for financial report and internal control audit fee) according to the actual business situation and market situation of the company in 2025, and sign the relevant service agreement.

2. The procedures to be performed by the accounting firm to be re-engaged

(1) Review opinions of the Audit Committee of the Board of Directors

The Audit Committee of the Board of Directors of the Company has fully understood and reviewed the independence, professional competence and investor protection capabilities of Tianjian Certified Public Accountants, and after consulting the basic information, qualification certificates and integrity records of Tianjian Certified Public Accountants, it believes that Tianjian Certified Public Accountants (Special General Partnership) has a serious attitude, rigorous work, standardized behavior and objective conclusions during the period of serving as the company's audit institution in 2024. The firm can carry out audit work in accordance with the relevant national regulations and the requirements of the CPA practice standards, and issue audit opinions independently and objectively. Unanimously agreed to re-appoint Tianjian Certified Public Accountants (Special General Partnership)

Submit the company's 2025 audit institution matters to the company's board of directors for deliberation.

(2) The deliberation and voting of the board of directors

The company held the 11th meeting of the 6th board of directors on March 29, 2025, with 7 votes in favor and 0

voted against and abstained 0 abstentions, and deliberated and passed the "Proposal on the Renewal of the Appointment of the Accounting Firm in 2025".

(3) The matter of re-appointment of the accounting firm still needs to be submitted to the general meeting of shareholders of the company for deliberation, and shall take effect from the date of deliberation and approval of the general meeting of shareholders of the company.

The announcement is hereby made.

Board of Directors of SUPCON Technology Co., Ltd

April 1, 2025