From 28 May to 1 June 2026, HUANENG POWER’s A-shares rose more than 20 % over three consecutive trading days, triggering an “unusual movement” alert under Shanghai Stock Exchange rules.

The company stated that both its own review and written confirmation from ultimate parent China Huaneng Group found no undisclosed material events—such as major asset reorganisations, equity incentives, or strategic investor introductions—that could explain the sharp price increase. Production and operations remain normal, with no significant changes in internal or external business conditions.

Financially, HUANENG POWER posted first-quarter 2026 net profit attributable to equity holders of RMB 4.48 billion, a 9.83 % decline year on year. Management attributed the drop to lower domestic power generation volumes and reduced average on-grid settlement tariffs, partly offset by lower fuel costs.

The company has detected no market rumours, media reports, or emerging “hot concepts” influencing the share price, and no share transactions by directors, senior management, or related parties during the period of unusual trading.

The Board reiterates that all official information is available only through the Shanghai Stock Exchange and Hong Kong Stock Exchange disclosure platforms and urges investors to monitor these channels and exercise prudence.