The brief

Analyst view

• Opened the first commercial-scale Asparagopsis farm, the Louth Bay EcoPark, in Jan 2025.
• Methane Tamer is fed at 0.5% of the diet; company claims up to 90% less burped methane.
• Beef from Methane Tamer cattle has been on sale in South Australia since 2025.

Technical approach

As reported

Cultivation

Ponds, not tanks or sea ropes

Seaweed grows in in-ground saltwater ponds under poly tunnels, using sunlight and passive heating instead of lit, climate-controlled tanks.

Product

Dried seaweed in a feed premix

Harvested Asparagopsis is dried and formulated into Methane Tamer, blended into feedlot rations at about 0.5% of the daily mix.

Effect

Less methane from every animal

Cattle fed the supplement burp out much less methane; CH4 Global guarantees at least a 70% cut through the product's shelf life.