[Four Taiwan semiconductor makers provided data to US government] Four semiconductor makers from Taiwan provided data requested by the United States government, but their level of openness about the information varied widely, reports said Friday (November 19). The administration of US President Joe Biden has asked for information deemed confidential about semiconductor makers’ inventories, lead times, clients and suppliers, to understand the roots of the current global chip shortage. In Taiwan, the four main producers that responded to the US call were Taiwan Semiconductor Manufacturing Co. (TSMC), United Microelectronics Corp. (UMC), Vanguard International Semiconductor Corp. (VIS), and Powerchip Technology Corp....