Tech firm Nvidia’s H20 chips pose security concerns for China, a social media account linked to Chinese state media said Sunday, as Washington and Beijing near a deadline to strike a deal in trade negotiations in which technology has also emerged as a key issue.

Nvidia's H20 chips pose security concerns for China, a social media account affiliated with China's state media said on Sunday, after Beijing raised concerns over backdoor access in those chips.

US chip giant Nvidia faces increasing mistrust in China over its H20 chips, after the company secured a licence from Washington to export the tailor-made processors by agreeing to pay 15 per cent of its revenues to the US government.