Warship supply chain roadshow starts in SA

Australian businesses will learn how they may join the supply chain for the defence force's next warships through a roadshow touring the country.

Defence Industry Minister Christopher Pyne launched the roadshow in Adelaide on Monday, which will go on to host briefings in capital cities around Australia until mid-December.

Construction on 12 offshore patrol vessels will start in Adelaide in 2018 while the build of nine anti-submarine warfare frigates will begin in the city by 2020.