A Chinese regulator has found Nvidia violated the country’s antitrust law, in a preliminary finding against the world’s most valuable chipmaker.

Nvidia had failed to fully comply with provisions outlined when it acquired Mellanox Technologies, an Israeli-US supplier of networking products, China’s State Administration for Market Regulation (SAMR) said on Monday. Beijing conditionally approved the US chipmaker’s acquisition of Mellanox in 2020.

Monday’s statement came as US and Chinese officials prepared for more talks in Madrid over trade, with a tariff truce between the world’s two largest economies set to expire in November.

SAMR reached its conclusion weeks before Monday’s announcement, according to two people with knowledge of the matter, adding that the regulator had released the s

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