Hunan Tianyan announced an abnormal fluctuation in stock prices. On May 16, 2025, May 19, 2025, and May 20, 2025, the company's A-share stock price increased by more than 20% cumulatively over three consecutive trading days, which constitutes an abnormal fluctuation in stock trading. The company's stock price-to-earnings ratio is 1967.7, significantly higher than the industry average price-to-earnings ratio of 24.97 for the same period in the Shenwan Automotive Parts sector