Now that the companies are on a special list, it has become virtually impossible for them to buy certain technologies from the US. They can only do this if they receive special permission from the US government.
Balloon
Last week, Americans discovered a Chinese balloon flying over the United States. Eventually the ball was shot down. According to the US State Department, the observation balloon was clearly equipped with spy gear. China claims it was a weather balloon.
One of the six companies on the blacklist is Beijing Nanjiang Aerospace Technology, a subsidiary of Deluxe Family. The company has been involved in the development of the first civil-military aerospace airship, according to Chinese state media. Other blacklisted companies include China Electronics Technology Group Corporation 48th Research Institute, Dongguan Lingkong Remote Sensing Technology, Eagles Men Aviation Science and Technology Group, Guangzhou Tian-Hai-Xiang Aviation Technology and Shanxi Eagles Men Aviation.