Computer motherboards are obviously subordinate to the cpu, which is an important link for the United States to support Intel and AMD in Taiwan Province Province.
Finally, why is there no supply chain for mobile phones and computers in Europe? Because, after the disintegration of 199 1 the Soviet Union and the United States thought that the overall situation was set, the main competitor of the United States at that time became the European Union (Japan was suppressed for more than eight years). At that time, the PC industry had just started, and the United States planned to unite with Japan, South Korea and Taiwan in East Asia to build a computer industry chain against the European Union. Later, during the outbreak of mobile phones, Europe (Nokia) and Japan (Sony, etc. ) was originally dominant, but the United States teamed up with China to fight against Europe and Japan and successfully destroyed the mobile phones in Europe and Japan, so now you see that the industrial chain of mobile phones and computers is in East Asia. Now the United States is cracking down on China's industries. Look at this process, and you will understand that the supply chain of the Soviet Union and Russia cannot be dominated by the United States.