Moore Threads Technology, a Chinese graphics processing unit (GPU) start-up founded by a veteran of Nvidia’s China operations, has become one of the most closely watched semiconductor players in the country, as domestic AI chip designers race to displace the US chip giant.The Beijing-based company last week received approval from the Shanghai Stock Exchange for an initial public offering (IPO). It took just 88 days from filing the application in June to receive approval, making it one of the...