Copper Crown Copper Foil: Stock trading is experiencing abnormal fluctuations, with the price-earnings ratio significantly higher than the industry average.

The announcement by Tongguan Copper Foil stated that the company's stock deviated by 33.99% over the consecutive 3 trading days on June 11, 12, and 15, 2026, indicating abnormal fluctuations. As of June 15, the company's trailing P/E ratio was 858.87 times and static P/E ratio was 2251.65 times, significantly higher than the industry average. The company's production and operation are currently normal, with no major changes in internal and external environments, and the controlling shareholder and actual controller have not engaged in undisclosed significant matters or trading of the company's stock. In addition, on June 15, the company was officially included in the Growth Enterprise Market (GEM) Index sample stocks. In the first quarter of 2026, the company's revenue was 1.842 billion yuan, a year-on-year increase of 32.04%, and net profit was 106 million yuan, a year-on-year increase of 2138.17%.