The Office of the U.S. Trade Representative on Friday announced the final raft of new tariff hikes on select Chinese goods while also proposing new tariffs on tungsten, wafers and polysilicon and rolling out an expanded machinery exclusion process. President Biden in May directed USTR to make a series of tariff increases on Chinese goods subject to tariffs under Section 301 of the Trade Act of 1974. USTR was initially set to make those changes by Aug. 1, but twice...