Chipmaker CXMT becomes mainland China's most valuable listed firm Chipmaker CXMT became mainland China's most valuable listed firm after its shares soared 470% in its market debut, driven by the AI boom fueling chip demand. Chipmaker CXMT becomes mainland China's most valuable listed firm Source: BBC Technology https://www.bbc.co.uk/news/technology The company's shares soared by 470% in its market debut, as the AI boom drives chip demand. Get AI news in your inbox Daily digest of what matters in AI. Get AI news in your inbox Daily digest of what matters in AI.