Securities code: 688009 Securities abbreviation: China General Number Announcement No.: 2025-012

China Railway Communication and Signal Co., Ltd

Announcement on the renewal of the appointment of the accounting firm

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 this announcement, and assume legal responsibility for the authenticity, accuracy and completeness of its content in accordance with the law.

Important Content Notes:

It is proposed to re-appoint Lixin Certified Public Accountants (Special General Partnership) (hereinafter referred to as "Lixin") as the company's external auditor in 2025.

China Railway Communication and Signal Co., Ltd. (hereinafter referred to as the "Company" or "the Company") for the fourth term

At its 27th meeting, the Board of Directors deliberated and approved the "Payment of Audit Fees for 2024 and Hiring of Extra-2025 Audits

Proposal of the Ministry of Audit Institution Program. The specific contents of the relevant matters are hereby announced as follows:

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

(1) Institutional information

1. Basic Information

Founded in Shanghai in 1927 by Dr. Pan Xulun, China's accounting leader, Lixin Certified Public Accountants (Special General Partnership) (hereinafter referred to as "Lixin") was founded in Shanghai in 1927, reopened in 1986, and became the first special general partnership accounting firm in China to complete the restructuring in 2010, with a registered address in Shanghai and a chief partner of Mr. Zhu Jiandi. Fong's is a member firm of the international accounting network BDO, has been engaged in securities services business for a long time, and has a securities and futures business license before the implementation of the new securities law, has H-share audit qualifications, and has registered with the Public Company Accounting Oversight Board (PCAOB) in the United States.

As of the end of 2024, Fong's has 296 partners, 2,498 certified public accountants and practitioners

A total of 10,021 certified public accountants, 743 of whom have signed the audit report of the securities service business.

Fong's business revenue (unaudited) in 2024 will be 5.001 billion yuan, of which 3.516 billion will be audited business income

yuan, securities business income of 1.765 billion yuan.

In 2024, Fong's provided annual report audit services for 693 listed companies, covering major industries including: manufacturing, information transmission, software and information technology services, scientific research and technical services, mining, wholesale and retail, construction, real estate, and electricity, heat, gas and water production and supply, with a total audit fee of 854 million yuan. The company has 11 audit clients of listed companies in the same industry.

2. Investor protection capabilities

As of the end of 2024, Fong's has withdrawn 166 million yuan from the occupational risk fund, and the occupational insurance purchased has been cumulative

The compensation limit is 1.050 billion yuan, and the relevant occupational insurance can cover the civil liability caused by audit failure.

Circumstances of civil liability in civil litigation related to professional conduct in the past three years:

Litigation (Arbitration) Litigation (Arbitration) Litigation (Arbitration) Results

Cut) person cut) event cut) amount

Some investors are liable for securities misrepresentation

There are many reasons for Geeya Technology and Lixin to mention the people

Litigation. It is made according to the competent people's court

Investors Geeya Technology and Zhou Xu's 2014 annual report still have 5 million effective judgments, and Geeya Technology loses to investors

Hui and Lixin Yuan 12.29% of the liability for compensation

The letter firm is jointly and severally liable. The position of Fong's insurance

The insurance is sufficient to cover the amount of compensation, and it is currently born

The effective judgment has been fulfilled.

Some investors to protect the 2015 year

Report; 2016 Semi-Annual Report, Annual

Report; 2017 Semi-Annual Report and Pro

When the announcement has a securities misrepresentation, it is guaranteed on the ground

Qianli, Lixin, Banktrust Appraisal, Northeast Securities

Initiating a civil lawsuit. Fong's is not subject to the administrative department

fine, but has the right to the people's court to order Lixin to be guaranteed

Bao Qianli, Northeast Securities 2015 restructuring, Qianli in December 30, 2016 to 2017

Investor Securities, Bank Trust Appraisal, 2015 Annual Report, 10.96 million yuan for misrepresentation during December 29

The 2016 annual report of the letter and others partially assumes 15% of the debt incurred by Bao Qianli

Supplementary liability. The current winning investor is right

Fong's application for execution, after the court accepts the matter

The execution amount is deducted from the account. Fong's account

There is enough money to cover the investor's execution money

item, and Fong's purchased a full amount of accountants

The firm's professional liability insurance is effective enough

Solve the risk of practice litigation and ensure the effectiveness of legal documents

books can be effectively implemented.

3. Integrity record

In the past three years, Fong's has not been subject to criminal punishment, administrative punishment 5 times, and supervision and management measures for its professional behavior

43 times, 4 self-regulatory measures and 0 disciplinary actions, involving 131 employees.

(2) Information of project members

1. Personnel information

Project Partner and Signatory CPA: Mr. Guo Jian, a certified public accountant in China, became a Chinese certified public accountant in 2004, began to engage in the audit of listed companies in 2009, joined Fong's in 2012, began to provide audit services for the company in 2022, and signed 12 listed and listed companies in the past three years.

Signing Certified Public Accountant: Ms. Wang Xiaoyan, a certified public accountant in China, became a Chinese certified public accountant in 2014, began to engage in the audit of listed companies in 2009, joined Fong's in 2012, began to provide audit services for the company in 2022, and signed 6 listed and listed companies in the past three years.

Quality Control Reviewer: Ms. Chen Jun, a certified public accountant in China. Since 1999, he has been engaged in the audit business of certified public accountants, in 2008 he has been engaged in the audit of listed companies, joined Fong's in 2019, and has provided audit services for the company in 2024, and has signed or reviewed 8 listed and listed companies in the past three years.

2. Records of the independence and integrity of the above-mentioned relevant personnel

The above-mentioned project partners, quality control reviewers and signatory accountants have not violated the independence requirements of the Code of Professional Ethics of Chinese Certified Public Accountants, and have not been subject to criminal penalties, administrative penalties, administrative supervision measures or self-regulatory measures in the past three years.

(3) Audit fees

In 2024, the Company paid Lixin Certified Public Accountants (Special General Partnership) RMB 5.18 million for the audit of financial statements, RMB 340,000 for internal control audit, and RMB 1.13 million for semi-annual review, with a total audit fee of RMB 6.65 million. The fee for 2025 will be based on the audit workload and market price, and the specific remuneration will be determined by mutual agreement at that time.

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

1. The Company held the 4th Audit and Risk Management Committee of the Board of Directors on March 27, 2025 2025

At the second meeting of the year, the professional competence, investor protection ability, independence and integrity of Lixin Certified Public Accountants (Special General Partnership) were fully understood and reviewed, and the Audit and Risk Management Committee believed that Lixin Certified Public Accountants (Special General Partnership) has many years of experience in auditing listed companies, and has professional competence to meet the needs of the company's annual financial audit and internal control audit. In the process of auditing the company's 2024 annual financial report, it strictly follows the provisions of the Chinese Certified Public Accountants Auditing Standards

Necessary audit procedures have been carried out, appropriate and sufficient audit evidence has been collected, and the company's financial position and operating results can be reflected objectively, fairly and fairly. Therefore, the Audit and Risk Management Committee unanimously agreed to continue to engage Lixin Certified Public Accountants (Special General Partnership) as the company's auditor for 2025, and agreed to submit it to the company's board of directors for consideration.

2. The company deliberated and approved at the 27th meeting of the fourth board of directors held on March 28, 2025

It intends to re-appoint Lixin Certified Public Accountants (Special General Partnership) as the company's external auditor for 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 will 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 China Railway Communication and Signal Co., Ltd

March 29, 2025