WASHINGTON: The global race for control of critical technology and clean energy resources has entered a new phase as the United States moves to challenge China’s dominance in the polysilicon market. “The plan of action in this proclamation will, among other things, help ensure the commercial viability of United States production of polysilicon and its derivatives that is necessary to meet United States economic and national security requirements,” the order stated. Polysilicon, an ultra-pure form of silicon, is a key component in the production of solar panels and semiconductor chips. It is processed into silicon wafers, which are later used in manufacturing solar cells and advanced electronic devices. The United States currently has two major polysilicon manufacturing facilities.