Guangdong Sitong Group Co., Ltd. Fourth Risk Warning Announcement Regarding Possible Delisting of Company Stock

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Securities Code: 603838 Short Name: *ST Sitong Announcement No.: 2026-008

Guangdong Sitong Group Co., Ltd.

Fourth Risk Warning Announcement Regarding Possible Delisting of the Company’s Stock

The company’s board of directors and all directors guarantee that the content of this announcement is free from any false records, misleading statements, or major omissions, and assume legal responsibility for its truthfulness, accuracy, and completeness.

Important Highlights:

● On April 29, 2025, the company disclosed the “Guangdong Sitong Group Co., Ltd. Announcement on Implementation of Delisting Risk Warning and Trading Suspension” (Announcement No.: 2025-021). Due to the company’s total profit, net profit, and net profit after deducting non-recurring gains and losses all being negative for 2024, and revenue excluding unrelated business income and income without commercial substance being below 300 million yuan, the company triggered the relevant conditions under Article 9.3.2 of the Shanghai Stock Exchange Listing Rules. The company’s stock was subject to delisting risk warning on April 30, 2025. If the 2025 annual report shows circumstances under Article 9.3.7 of the Shanghai Stock Exchange Listing Rules, the stock may be delisted by the Shanghai Stock Exchange. Investors are advised to be aware of investment risks.

● According to Article 9.3.6 of the Shanghai Stock Exchange Listing Rules, after the company’s stock is subject to delisting risk warning in the relevant year, it must disclose a risk warning announcement within one month after the end of the fiscal year, and from the first risk warning disclosure until the annual report is disclosed, it must disclose a risk warning every 10 trading days. This is the company’s fourth risk warning announcement. Investors are advised to be cautious of investment risks.

1. Reasons for Possible Delisting

On April 29, 2025, the company disclosed the “Guangdong Sitong Group Co., Ltd. Announcement on Implementation of Delisting Risk Warning and Trading Suspension” (Announcement No.: 2025-021). Due to the company’s total profit, net profit, and net profit after deducting non-recurring gains and losses all being negative for 2024, and revenue excluding unrelated business income and income without commercial substance being below 300 million yuan, the company triggered the relevant conditions under Article 9.3.2 of the Shanghai Stock Exchange Listing Rules. The company’s stock was subject to delisting risk warning on April 30, 2025.

According to Article 9.3.7 of the Shanghai Stock Exchange Listing Rules, after the stock is subject to delisting risk warning, if the most recent fiscal year does not meet the following conditions, the company can apply to the Shanghai Stock Exchange to revoke the warning within five trading days after the annual report is disclosed:

(1) The audited financial statements contain any of the circumstances specified in Article 9.3.2, Paragraph 1, Items (1) or (2);

(2) The audited financial statements are issued with a qualified opinion, an inability to express an opinion, or a negative opinion;

(3) The internal control of the financial report is issued with an inability to express an opinion or a negative opinion, or the company has not disclosed the internal control audit report as required, except when the company is undergoing bankruptcy reorganization, restructuring for listing, or major asset restructuring, and cannot disclose the internal control audit report according to relevant regulations;

(4) The annual report is not disclosed within the statutory deadline;

(5) More than half of the directors cannot guarantee the truthfulness, accuracy, and completeness of the disclosed annual report, and have not corrected this within the statutory deadline.

If the 2025 annual report does not meet the above conditions for revoking the delisting warning or the company fails to apply for revocation within the specified period, the stock faces the risk of being delisted.

2. Disclosure of Previous Risk Warning Announcements for Possible Delisting

Per Article 9.3.6 of the Shanghai Stock Exchange Listing Rules, the company must disclose a risk warning announcement within one month after the end of the fiscal year in which the stock was subject to delisting warning, and every 10 trading days from the first warning until the annual report is disclosed.

On January 31, 2026, the company disclosed the “Guangdong Sitong Group Co., Ltd. Risk Warning Announcement on Possible Delisting” (Announcement No.: 2026-002); on February 14, 2026, the second risk warning (Announcement No.: 2026-003); on March 10, 2026, the third risk warning (Announcement No.: 2026-004).

This is the company’s fourth risk warning announcement. Investors are advised to be cautious.

3. Other Matters

As of the date of this announcement, the company’s 2025 annual report audit is ongoing. Final financial data will be based on the audited 2025 annual report officially disclosed by the company. Investors are advised to be cautious.

According to relevant regulations of the Shanghai Stock Exchange Listing Rules, if the company’s audited total profit, net profit, or net profit after deducting non-recurring gains and losses for 2025 is positive or revenue exceeds 300 million yuan, and no other conditions requiring delisting warning are met, the company will apply to the Shanghai Stock Exchange to revoke the warning after the board approves and discloses the 2025 annual report. Since the audited 2025 annual report has not yet been disclosed, the revocation of the warning remains uncertain. If the company does not meet the conditions for revoking the warning or fails to apply within the deadline, its stock will be delisted by the Shanghai Stock Exchange. Investors are advised to be cautious.

The company reminds investors that all information related to the company is based on announcements published on the Shanghai Stock Exchange website (www.sse.com.cn) and the company’s designated disclosure media: “Shanghai Securities News,” “China Securities Journal,” “Securities Times,” and “Securities Daily.” Please pay attention to investment risks.

This is the official announcement.

Guangdong Sitong Group Co., Ltd.

Board of Directors

March 23, 2026