Nvidia is halting production of an artificial-intelligence chip it developed for China after the government in Beijing told companies not to buy it, the latest twist in the U.S.-China tech war centered on the $4 trillion chip designer.Nvidia in recent days has told some partners to stop work related to making its H20 product, which was approved by the Trump administration for sale in China in exchange for 15% of the sales going to the U.S. government, people familiar with the matter said. The pause came after Chinese officials raised concerns about potential security risks in the chips. Should China avoid Nvidia chips ?

