Shenzhen Guohua Network Security Technology Co.Ltd(000004) : suggestive announcement on the implementation of other risk warnings for the company’s shares

Securities code: Shenzhen Guohua Network Security Technology Co.Ltd(000004) Securities abbreviation: Shenzhen Guohua Network Security Technology Co.Ltd(000004) Announcement No.: 2022024 Shenzhen Guohua Network Security Technology Co.Ltd(000004) suggestive announcement on the implementation of other risk warnings on the company’s shares

The company and all members of the board of directors guarantee that the information disclosed is true, accurate and complete without false records, misleading statements or major omissions.

Special tips:

1. Because Zhitong Certified Public Accountants (special general partnership) issued an internal control audit report with a negative opinion on the company, according to article 9.8.1, Section 8, Chapter IX of the stock listing rules of Shenzhen Stock Exchange (revised in 2022), the company touched on the situation of “other risk warning”.

2. The trading of the company’s shares will be suspended for one day on May 5, 2022 and resumed from the opening of the market on May 6, 2022.

3. The company’s shares have been subject to other risk warnings since the opening of the market on May 6, 2022. The abbreviation of the company’s shares has been changed from ” Shenzhen Guohua Network Security Technology Co.Ltd(000004) ” to “St Guohua”, the stock code is still ” Shenzhen Guohua Network Security Technology Co.Ltd(000004) “, and the rise and fall on the stock trading day is limited to 5%. 1、 Type, abbreviation, stock code, starting date of other risk warnings and daily rise and fall restrictions of stocks

1. Stock type: RMB common stock a share

2. Stock abbreviation: changed from ” Shenzhen Guohua Network Security Technology Co.Ltd(000004) ” to “St Guohua”

3. Stock Code: no change, still Shenzhen Guohua Network Security Technology Co.Ltd(000004)

4. Starting date of other risk warnings: May 6, 2022

According to article 9.1.5, Section 1, Chapter 9 of the Listing Rules of Shenzhen Stock Exchange (revised in 2022), the trading of the company’s shares was suspended for one day on May 5, 2022. Since the opening of the market on May 6, 2022, Shenzhen Stock Exchange has implemented “other risk warning” for the trading of the company’s shares.

5. After the company’s shares were warned of other risks, the daily rise and fall of stock trading was limited to 5%. 2、 Reasons for other risk warnings

Shenzhen Guohua Network Security Technology Co.Ltd(000004) (hereinafter referred to as “the company”) received a negative internal control audit report from Grant Thornton Certified Public Accountants (special general partnership) in 2021. According to article 9.8.1, Section 8, Chapter 9 of the Listing Rules of Shenzhen Stock Exchange (revised in 2022), if the company is involved in the situation of “other risk warning”, the trading of the company’s shares will be suspended for one day on May 5, 2022, and the trading will be resumed and other risk warnings will be implemented from the opening of the market on May 6, 2022. At that time, the abbreviation of the company’s securities will be changed from ” Shenzhen Guohua Network Security Technology Co.Ltd(000004) ” to “St Guohua”, and the daily rise and fall of the company’s shares will be limited to 5%, The securities code remains unchanged.

3、 Rectification measures of the board of directors

The board of directors of the company has fully realized the deficiency of internal control. The company will strengthen the prudence of goodwill impairment test, continuously strengthen the communication and control of Finance and business, strengthen the control of cost accounting and salary management, and strengthen the management of accounts receivable in accordance with the guidelines for self discipline supervision of listed companies of Shenzhen Stock Exchange No. 1 – standardized operation of listed companies on the main board and other relevant provisions, Continue to strengthen communication with upstream and downstream business partners, promote contract implementation, accelerate product delivery and sales collection, optimize business and management processes, and strengthen the control of the company’s R & D projects. The company shall apply to Shenzhen stock exchange for cancellation of other risks as soon as possible and take corresponding warning measures after meeting the requirements of Shenzhen Stock Exchange.

4、 Main ways for the company to accept investor consultation

During the period when the company’s shares are subject to other risk warnings, the company will receive investor consultation through telephone, e-mail, interactive and other means. The contact information is as follows:

1. Tel: 075583521596

2. Email: [email protected].

5、 Other relevant instructions

1. The company will continue to pay attention to the progress of the above matters and perform the obligation of information disclosure in a timely manner in strict accordance with the provisions and requirements of relevant laws and regulations.

2. The information disclosure media designated by the company are securities times, China Securities News and cninfo (www.cn. Info. Com. CN), All information of the company shall be subject to the announcement published in the above media. Please invest rationally and pay attention to investment risks.

It is hereby announced.

Shenzhen Guohua Network Security Technology Co.Ltd(000004) board of directors

April 30, 2002

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