It is reported that Apple's iPhone processor supplier TSMC (TSMC), is about to announce an additional $100 billion in investment in the United States.

Following Apple's announcement that it will invest $500 billion in U.S. manufacturing (even if the funding is less than the new investment Apple suggests), TSMC is said to invest billions in the U.S. The investment is based on its existing investment in building a processor plant in Arizona.

According to the Wall Street Journal, President Trump will announce the $100 billion investment by March 3, 2025. The funding will go to chip manufacturing, but it is unclear whether this means building a new plant or expanding it in Arizona.

What is known is that the $100 billion investment plan is completed within the next four years. The investment follows TSMC's initial $12 billion investment in Arizona in 2020 and is part of President Trump's push to increase U.S. processor production.

President Trump has previously criticized the Chip Act, in which the Biden administration provided TSMC with $6.6 billion in support. Instead, Trump claimed that tariffs would prompt manufacturers to move to the United States, and sometimes recommended at least 25% tariffs on semiconductor imports.

Although TSMC is building two Arizona chip factories, these plants are not doing all the work. Although Amkor announced a back-road processing plant in late 2023, the processors may still be shipped to Taiwan or China for back-road processing.

Taipei's first plant in Arizona has also been criticized for its unsafe construction methods that have allegedly resulted in casualties.

Apple's major chipmaker has also been accused of not working hard enough in the United States. This is likely a cultural difference, as Taiwanese employees themselves admit that they often work over 60 hours a week.

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