South Australian climate tech company CH4 Global has taken home two major international sustainability awards, putting regional innovation firmly on the global map.
The Adelaide-founded business was announced overnight as a double winner at the 2026 SEAL Awards in the United States, recognised for both its environmental impact and its flagship product, Methane Tamer — a feed supplement that can cut methane emissions from cattle by up to 90 per cent.
The SEAL Awards spotlight the world’s most impactful sustainability initiatives and products, naming just 50 companies globally each year. CH4 Global received the SEAL Environmental Initiative Award for its work reducing global methane emissions, alongside the SEAL Sustainable Product Award for Methane Tamer itself.
At the centre of that achievement is South Australia’s Eyre Peninsula, where CH4 Global has established the world’s first EcoPark dedicated to growing Asparagopsis, a native red seaweed with powerful methane-reducing properties. Once dried and formulated into Methane Tamer, the seaweed is added to cattle feed at just half a per cent of their daily intake — delivering a significant reduction in enteric methane emissions produced through digestion.
Founder and CEO Steve Meller says the recognition reflects years of work building an entirely new industry from the ground up in regional South Australia.
“It’s rewarding to be recognised for our efforts to bend the climate curve, alongside other major international organisations taking steps to change,” Mr Meller said. “By growing and drying Asparagopsis, which is native to southern Australian waters, we’re providing farmers with an opportunity to feed their cows a natural seaweed which has an impact on their emissions.”
The awards place CH4 Global alongside global heavyweights including British Airways, General Motors, Lenovo, Hitachi Energy and Wolters Kluwer.
Back home, the impacts are already tangible. At its Louth Bay EcoPark, CH4 Global is growing and processing Asparagopsis at scale across 10 large cultivation ponds with a combined capacity of two million litres, producing up to 80 metric tonnes of seaweed each year. Phase one of the facility opened last year, marking a major step toward commercial-scale production.
Methane-reduced beef from cattle fed Methane Tamer is already being sold through South Australian butchers and restaurants, with a major supermarket rollout expected to follow.
“Farmers are feeling better about reducing methane emissions, their cows are thriving, and they’ve been able to create a new market for consumers wanting to purchase and consume methane-reduced beef,” Mr Meller said.
With operations spanning Australia and the United States, CH4 Global is now scaling rapidly to meet global demand — all while keeping its roots firmly planted in South Australia.
