Chinese internet giant Tencent Holdings has become the target of a fresh anti-monopoly complaint to regulators, this time from a supplier of smart vehicle technology and a General Motors China venture.

The supplier, Shanghai-based PATEO, in a statement accused Tencent of abusing its messaging app’s dominant market position to restrict sales of its products. PATEO offers voice recognition features and other mobile applications that rely on Tencent’s multipurpose super app WeChat. The company said Tencent has been asking car companies to stop using its Internet of Vehicles products since August 2020.

Shenzhen-based Tencent refuted the accusations in a statement posted on its official WeChat account on Tuesday. It said the company filed a lawsuit against PATEO in September last year for alleged trademark infringement and unfair competition.

The new complaint comes just a week after ByteDance-owned Douyin, the sister app of TikTok, accused Tencent of monopolistic behaviour and filed suit in a Beijing court, seeking 90 million yuan (US$14 million) in compensation.

Tencent has described that claim as false and said ByteDance was illegally using its users’ data.