U.S. Treasury Secretary Janet Yellen (R) shakes hands with U.S. BEIJING — U.S. Treasury Secretary Janet Yellen said Friday she is "concerned" about the export controls China announced this week. "I am also concerned about new export controls recently announced by China on two critical minerals used in technologies like semiconductors," Yellen said in prepared remarks for a meeting with U.S. businesses in Beijing. The Biden administration has announced measures aimed at bolstering American tech capabilities and limiting China's access to advanced tech. Those include sweeping export controls that took effect in October and restrict the ability of U.S. businesses to sell certain advanced computing semiconductors or related manufacturing equipment to China.

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Persons: Janet Yellen, China Nicholas Burns, Yang Yingming, Yellen, Biden Organizations: Treasury, U.S, Department of International Economic Relations, China's Ministry of Finance, China, China's Ministry of Commerce Locations: China, Beijing, BEIJING — U.S