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Chinese firms were previously observed accessingNvidias A100 and H100 chips viacloud computing servicessuch as AWS.

Concerns have also been raised about delayed processes, which have allowed Chinese companies to stockpile advanced equipment.

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On the other side, companies are worried export sanctions might significantly impact business.

ASML says that China accounts for around one-fifth of its revenue (viaBloomberg).

The Commerce Department has acknowledged receipt of the letter and indicated that it would respond through the appropriate channels.

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