An investigation of Huawei Technologies Co.’s latest AI offering has unearthed an advanced processor made by Nvidia Corp. manufacturing partner Taiwan Semiconductor Manufacturing Co., suggesting that China is still struggling to reliably make its own advanced chips in sufficient quantities.

Taiwan Semiconductor Manufacturing Company (TSMC) has informed the U.S. government about a potential attempt to manufacture artificial intelligence (AI) chips for Huawei, a Chinese technology group, in violation of export controls.

TSMC has advised the U.S. that there was an attempt by Huawei to violate sanctions against China restricting the export of AI chips to China, as the probe that could affect Apple chip production rolls on.