The brief

Analyst view

• Calysseo, a 50:50 JV with Adisseo, built a 20,000 t/yr FeedKind plant in Chongqing (2022).
• Plant halted for upgrades; Adisseo stopped funding the JV in July 2026.
• New CEO Berend Jan Kingma from July 2026; co-founder Alan Shaw is chairman.

Technical approach

As reported

Microbe

Bacteria that eat methane

A naturally occurring microbe uses methane as its only food and turns it into protein-rich cell mass, with no farmland, fish or plant ingredients needed.

Reactor

Patented U-loop fermenter

Gas and liquid are pumped around a U-shaped loop so the methane and oxygen dissolve and reach the bacteria fast.

Product

Dried protein meal

The cells are separated and dried into FeedKind, sold for fish and shrimp feed and, as FeedKind Pet, for dog food.