Last week, a Wall Street Journal report said TSMC was preparing another multibillion-dollar factory investment in Arizona, while the company declined to confirm, saying only that it had not yet finalized plans to build a second chip manufacturing plant in the U.S. state.The 91-year-old Chang said he told Harris that TSMC has invited the U.S. secretary of commerce and its "grand alliance" partners to a "tool-in" ceremony on Dec. 6, which will mark the installation of the first batch of production equipment at the Arizona plant.Earlier this year, Chang expressed skepticism over the potential success of the Arizona plant because of the high cost of operating in the U.S. and the potential lack of suitable workers.Chang said he also talked about his health with Xi, adding that the Presidential Office had instructed him not to avoid any chance to meet Xi and say hello.Nov. 15: TSMC shares soar on reports of buy by Berkshire HathawayNov. 9: Future Arizona plant plans not yet finalized: TSMCOct. 31: TSMC says no commitment made on 1nm foundry locationAug. 30: TSMC touts its 2nm process as best technology in worldApril 21: Making chips in U.S. too expensive: TSMC founder"