Shang Hai Zheng Quan Bao·2026-01-20 06:49Group 1 - The commercial aerospace sector experienced a downward trend on January 20, with multiple stocks, including *ST Chengchang and Aerospace Power, hitting the daily limit down. Stocks like Superjet Co. and Xicet Testing fell over 13%, while Zhenlei Technology and Aerospace Micro dropped over 11% [2][3] - *ST Chengchang opened with a rapid rise to the daily limit but later experienced significant volatility, ultimately hitting the limit down. As of the report, *ST Chengchang was priced at 128.66 yuan per share [2][3] - The Shenzhen Stock Exchange issued a regulatory notice regarding *ST Chengchang's stock price volatility, leading to a suspension for investigation and a risk warning announcement. Following its resumption on January 16, the stock continued to hit the daily limit up, with some investors engaging in abnormal trading behaviors [2][3] Group 2 - The company *ST Chengchang was established in November 2010 and specializes in the research, production, sales, and technical services of microwave and millimeter-wave analog phased array T/R chips [7]