The US government has placed 37 Chinese companies on its sanctions list, citing national security concerns, with 11 companies accused of ties to a spy balloon that flew over the US last year, according to Kyodo. The companies, research institutes, and other organizations included in the list are prohibited from doing business with American firms, and they must obtain approval from the Department of Commerce before receiving goods and technology from them. According to the agency, out of the 37 organizations, 22 companies were added to the list for their ties to China’s efforts to advance quant…