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Ruminant BioTech develops a slow-release bolus intended to reduce methane emissions from cattle.
Founded in 2021 and based in Auckland, New Zealand, Ruminant BioTech develops a cattle bolus designed to reduce methane emissions for up to six months. Clinical trials showed over 70% methane reduction within three months. In November 2025, it raised NZD 17 million in Series A funding co-led by Rosrain Investments Limited and Cultivate Ventures, with Marex Spectron International Limited and AgriZeroNZ participating.
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