# Old Five Stocks

The Twilight of a Living Fossil: Shenzhen’s Pioneer Stock Faces Mandatory Delisting

Shenzhen Guohua Network Security (*ST Guohua), one of the first five companies to list on the Shenzhen Stock Exchange, is set for mandatory delisting after its market capitalization fell below the 500 million RMB threshold. The company's 35-year history of frequent industrial pivots failed to yield sustainable growth, highlighting a new era of stricter regulatory enforcement in China's equity markets.