DATANG POWER (00991) has issued an announcement stating that on May 6th, 7th, and 8th, 2026, the cumulative deviation of the closing price increase for the company's shares over three consecutive trading days exceeded 20%. According to the relevant rules of the Shanghai Stock Exchange, this constitutes an abnormal fluctuation in stock trading. Following a self-review, the company confirmed that its current production and operational activities are normal, with no significant changes in its internal or external operating environment. There are no major matters affecting the abnormal price fluctuations of the company's shares. After self-examination and verification with its controlling shareholder and actual controller, as of the date of this announcement, the company, its controlling shareholder, and actual controller confirm there is no material information that should have been disclosed but has not been, including but not limited to major asset restructuring, share issuance, acquisitions, debt restructuring, business restructuring, asset spin-offs, asset injections, share repurchases, equity incentives, bankruptcy reorganization, major business cooperation, or the introduction of strategic investors. Verification also confirmed no media reports or market rumors that could significantly impact the company's share price were found, nor any involvement in market hot topics. As of the announcement date, no other major events that could materially affect the company's share price have been identified. The company's directors, senior management, controlling shareholder, and parties acting in concert did not trade the company's shares during this period of abnormal price fluctuations.