The US is asking South Korea to adopt restrictions on semiconductor technology exports to China similar to those Washington has already implemented, another sign the Biden administration is stepping up efforts to thwart Beijing’s chip ambitions. American officials want South Korea to restrict the flow of equipment and technologies for making high-end logic and memory chips to China, according to people familiar with the matter. Those include logic chips more advanced than 14-nanometer and a type of memory called DRAM beyond 18nm, one of the people said, asking not to be identified because the discussions are private. That would be consistent with a set of measures the US Department of Commerce first announced in 2022. American officials discussed the issues in depth with the government of South Korean President Yoon Suk Yeol in March, the people said. While the US is trying to reach an agreement before a G7 summit in mid-June, Seoul officials are debating whether to satisfy the US request, in part because China remains a key trading partner. Washington’s request of South Korea has not been detailed before. This comes on top of the new US push to get allies to limit servicing of semiconductor equipment for Chinese firms and restrict exports of spare parts and chip chemicals to China. Bloomberg News has reported the US pressed allies, including South Korea and Germany, to tighten curbs on China’s access to their technology. Korea plays a leading role in producing semiconductors and providing spare parts for chip-making equipment. The timeline could slip. South Korea, Japan and US officials are planning to meet in late June to discuss cooperation on advanced technology and supply chains, according to the people.

Full report : Sources say that US has aked South Korea to add China chip export restrictions similar to Commerce Department rules, including on chips beyond 14nm and DRAM beyond 18nm.