ST Waveguide: Apply for revoking the company's stock delisting risk warning.

ST Waveguide announcement: After deducting non-recurring profits and losses, the audited net profit of the company in 2024 was negative, and the operating income after deducting business income unrelated to the main business and income without commercial substance was less than 300 million yuan, triggering the situation of implementing delisting risk warning on the company's stock in accordance with Article 9.3.2 of the Stock Listing Rules of the Shanghai Stock Exchange. The company was issued a delisting risk warning by the Shanghai Stock Exchange on April 30, 2025. The company disclosed the "2025 Annual Report" on April 8, 2026. According to the audit, the company achieved a total profit of 9.2095 million yuan in 2025, a net profit attributable to the owners of the parent company of 5.2507 million yuan, and a net profit attributable to the owners of the parent company after deducting non-recurring profits and losses of -7.4781 million yuan. The company achieved operating income of 0.47 billion yuan in 2025, with operating income of 4.44 billion yuan after deducting business income unrelated to the main business and income without commercial substance. The company has applied to the Shanghai Stock Exchange for the withdrawal of the stock delisting risk warning.