Members of the US House of Representatives have demanded that Nvidia CEO Jensen Huang appear in a closed-door briefing on November 18, Bloomberg reports. The request of the American lawmakers is related to the contacts of the head of the company with the top manager of Mega Speed International in Singapore, who was investigated on suspicion of spying for China. Members of Congress have expressed concern about the PRC's possible access to sensitive technologies. Nvidia called to repair relations with its Singaporean partner and emphasized that it monitors all shipments of its processors to prevent their illegal export.