Australia's trade minister Don Farrell said on Thursday the country had increased aluminium supply to the U.S. with Washington's approval, addressing a hurdle to Canberra's request for an exemption from U.

Don Farrell has countered American claims Australia has been breaking agreements with the US on aluminium trade as it seeks a tariff exemption.

Peter Navarro has become a red flag for Australian negotiators trying to secure an exemption from the president’s tariffs on steel and aluminium.