Dozens of Australian and American investors have urged Anthony Albanese to help broker compensation for shareholders who allegedly lost $400 million from the cancellation of a corruption-tainted coal mining licence in NSW when he meets with Donald Trump on the weekend.

Fifty Australian investors in NuCoal Resources have written to the prime minister, requesting he discuss the issue in his trade negotiations with Trump in Canada on the weekend, as part of efforts to gain an exemption from US tariffs. Albanese will try to unwind a 10 per cent baseline tariff on Australian goods and 50 per cent tariff on aluminium and steel.