China’s UnionPay International plans to connect Chinese payment apps to Pix, the Brazilian payment system at the centre of Washington’s trade case against Brasilia, allowing Chinese tourists to pay by scanning a code.Under the pilot, users of the UnionPay app and of Chinese bank apps linked to its platform would scan a merchant’s code and pay from the account they use at home.Chinese state media reported that access would later extend to other digital wallets in UnionPay’s global network.Pix...