The administration of U.S. President Joe Biden is considering imposing tougher sanctions on China’s largest chipmaker, according to people familiar with the situation, building on an effort to limit the country’s access to advanced technology.

The National Security Council is set to hold a meeting on Thursday to discuss the potential changes, said the people, who asked not to be identified because the deliberations are private. Agencies represented through their deputies will include the Commerce, Defense, State and Energy departments.

The proposal that’s being examined would tighten the rules on exports to Shanghai-based Semiconductor Manufacturing International Corp. If one proposal is adopted, companies such as Applied Materials Inc., KLA Corp. and Lam Research Corp. may find their ability to supply gear to SMIC severely limited.