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.

One of Huawei’s AI accelerators features an Ascend 910B chip, manufactured by TSMC. When they got to know this, TSMC reportedly notified the US Commerce Department about the discovery earlier this mon

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.