U.S. export controls on artificial intelligence chips to China were "a failure", Nvidia Chief Executive Jensen Huang said on Wednesday.

Taiwan's Foxconn , the world's largest contract electronics maker, said on Tuesday an artificial intelligence centre it has announced with Nvidia will be built in phases and is targeted to have 100 megawatts of power.

After a blistering share rally that for a time made Nvidia Corp. the world’s most valuable company, investors have become more wary of pouring more money into the chipmaker, aware that the adoption of artificial intelligence computing won’t be a straight path,