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 Corp. and Advanced Micro Devices Inc. will give 15% of their chip revenue from sales in China to the U.S. government as a condition of receiving new export licenses, according to a report Sunday.