
On February 4, 2025, China’s Ministry of Commerce and General Administration of Customs jointly issued an announcement on implementing export controls on tungsten and related items. APT, as one of 25 rare metal products and technologies, was included in the scope of export controls. This measure has attracted widespread international attention. So, why is China implementing export controls on ammonium paratungstate? I. Ammonium Paratungstate: The Core Intermediate in the Tungsten Industry Chain Ammonium paratungstate (APT), a crucial tungsten compound, is…