TAIWAN — Taiwan’s premier on Sunday accused China of violating international trade rules and “discriminating” against the island after it halted more Taiwanese imports. According to Taiwan’s finance ministry, Chinese customs authorities “suddenly suspended” imports of certain alcoholic beverages from the island on Friday. It said the move was related to a regulation Beijing imposed on 1 January that requires all food and alcoholic beverage exporters to the mainland to be registered with Chinese customs. Some Taiwanese companies had still been under review. Premier Su Tseng-chang accused Beijing of violating World Trade Organization (WTO) norms by “making its own rules”...