Tianneng Power International Ltd (00819.HK) saw its stock price plummet by 7.34% in early trading on Friday, following the release of its annual financial results after market close on Thursday. The sharp decline suggests that investors may be disappointed with the company's performance or outlook.

According to the company's report, Tianneng Power posted a net income attributable to shareholders of RMB 1,142 million for the fiscal year. The firm's revenue reached RMB 76,669 million, with a gross profit of RMB 4,912 million. Basic earnings per share (EPS) were reported at RMB 1.01. Additionally, the company announced a final dividend of HK$17 cents per share.

While the exact reasons for the negative market reaction are not immediately clear, investors may be concerned about the company's growth prospects or profitability margins. The announced dividend or other aspects of the financial results might have fallen short of market expectations, leading to the sell-off. Analysts will likely scrutinize these results in the coming days to provide more insights into Tianneng Power's financial health and future outlook.