TAIPEI (Taiwan News) — TSMC ended its relationship with Singaporean firm PowerAIR due to concerns over its partnership with Chinese electronics company Huawei, SCMP reported Friday.

According to reports, the world’s largest contract chipmaker ended the relationship after a client review found a TSMC-manufactured chip in one of Huawei’s AI processors, per CNA.

This marks the second time TSMC cut ties with a company due to Huawei connections. In October, TSMC suspended shipments to Beijing-based Sophgo after they discovered a chip they made was found on a Huawei AI processor, per Reuters.

Sophgo denied any business relationship with Huawei. TSMC previously said it stopped supplying products to Huawei in 2020.

Since 2019, Huawei has been under US restrictions, effectively barring its access to global foundry services. In December, the US launched a Section 301 investigation into China’s semiconductor policies, claiming that they could have a detrimental impact on the US and other economies.

Public records show that PowerAIR was registered as a private company in Singapore in September 2023, per CNA. However, the company lacks a public website and email contact.