Taiwan Semiconductor Manufacturing Company, is the world's largest dedicated semiconductor foundry, based in Taiwan and founded in 1987. The company manufactures and sells integrated circuits and other semiconductor devices for a global client base, including major tech companies, and has a reputation for leading process technology.
TSMC pioneered the "pure-play" foundry business model, focusing solely on manufacturing semiconductors for other companies rather than designing its own branded chips.
TSMC builds chips for Nvidia and Apple and about 80/90% of its chips production is in Taiwan
These types of chips (3 and 4 nanometers) can only be manufactured by 2 companies: TSMC and Samsung. To make these chips, you need an insane high precision, and only one company makes the machines to manifacture these chips, and it's called Advanced Semiconductor Materials Lithography (ASML).