South Australian Premier Peter Malinauskas will spruik the state's world-leading green hydrogen project during talks in Europe.
The premier is on his way to meet potential investors before attending the World Hydrogen Summit in the Netherlands.
The Cape Hardy project is intended to be a centrepiece of the state's future economy, with his $600 million hydrogen jobs plan part of a $20 billion pipeline of renewable energy projects.
Queensland's Gladstone and Townsville are also vying to be hydrogen hubs, while Western Australia has earmarked land in the Pilbara's Port Hedland and Onslow for green hydrogen, ammonia and iron ore projects potentially worth $70b.
Speaking at the summit this week as a global leader driving the new industry, Mr Malinauskas will argue the world must use green hydrogen to decarbonise.
"I think it's an opportunity for us to use our hydrogen at home for industrial use producing green iron which, again, the world has to use if we're going to meet net-zero targets," he told ABC News Radio on Monday.
Iron ore firm Iron Road and Canada's Amp Energy last month won the competitive bid to build the Cape Hardy green hydrogen project.
The new industrial hub and production plant on the Eyre Peninsula is near a deep-sea port so green hydrogen and ammonia can be added to existing mineral and grain exports.
Located close to existing transmission infrastructure, it is also near high-quality southern and central wind zones - a renewable energy source critical for commercial green hydrogen production.
Amp Energy intends to develop five gigawatts of electrolyser capacity over the next decade in the port precinct.
The planned export facility at Cape Hardy is expected to create nearly 5000 jobs during its development peak and more than 1000 positions when fully operational.
The federal government pledged $25m for the port to support future industries.
Liberty Steel has already announced plans to dump coal-based steelmaking at Whyalla, and will instead use natural gas and green hydrogen.