China responds to US chip sanctions with export bans on key high-tech materials China has declared a ban on the export of critical materials such as gallium, germanium, and antimony to the United States, effective immediately. This announcement, made by the Chinese Commerce Ministry on Tuesday, follows Washington's recent sanctions targeting Beijing's chip sector, which were justified by "national security" concerns. The newly imposed restrictions focus on dual-use items that can serve both military and civilian purposes. Additionally, the regulations will enforce stricter oversight on the end-use of graphite products exported to the...