Amet completed his secondary education at The Armidale School in northern New South Wales, Australia, and graduated from the University of Papua New Guinea with a Bachelor of Law degree in 1975.

[2] He held this Ministry until the government was brought down by a parliamentary motion of no confidence in August 2011 during the 2011-2012 Papua New Guinean constitutional crisis whereupon he moved to the Opposition benches.

In February 2021, he was nominated as the Allegiance Party (Papua New Guinea) candidate for the seat of Moresby North West District, which required a byelection after the death of incumbent Member of Parliament, Sir Mekere Morauta.

Amet said that mining the sands would impact on thousands of people and threaten the environment, including the breeding grounds of endangered leatherback turtles.

[6] Amet wrote to the Department for Justice to request an extension of community consultation and for deeper engagement with authorising agency the Minerals Resource Authority, and said that court proceedings would be filed if required.

[7] Amet had previously been vocal in opposing the proposed deep-sea sand-mining project, Solwara 1,[8] which ultimately failed.