UK Office (HQ)
Address
Onnu Ltd, York House, York Road, Maidenhead, SL6 1SF,
United Kingdom
Our vision
We see biomass pyrolysis and biochar as the most accessible and scalable of all engineered carbon removal processes, thanks to its relative simplicity, and ability to support profitable business models.
To ensure this sector thrives, and can have a game-changing impact in the fight against climate change, Onnu seeks to remove barriers to scaling, both for our own business and others, to expand and grow the market.
By 2030 we will have played our part building a world where no biomass is wasted, pyrolysis routinely generates localised green energy, biochar use is widespread and biochar CDR is removing mega tonnes of CO2 from the atmosphere.
About Us
Onnu is a developer of biochar carbon removal projects. We develop BCR projects in locations where we can deliver maximum environmental benefits and build both our own projects, or work with partners with suitable sites/feedstock to share the benefits.
Onnu Engineering is a pyrolysis technology provider. Our CarboFlow technology delivers clean energy, captures carbon and produces biochar, creating a more circular economy.
Our locations
Cape Town
Address
21 Dreyer Street, Claremont,
Cape Town 7780,
South Africa
Phone
Malaysia Office
Address
A-29-8, Menara UOA Bangsar, Jalan Bangsar Utama 1, Bangsar 59000, Kuala Lumpur
Our story
We're hiring
Latest insights
Looking back on 2025 and ahead to 2026
In this blog we look back on a year of change at Onnu. In 2025 we launched Onnu Bioflow and unveiled our proprietary pyrolysis technology, CarboFlow. We look ahead to what 2026 may bring.
Looking back on 2025 and ahead to 2026
Onnu Bioflow, our commodities trading business, launched!
We are delighted to announce that Onnu Bioflow is live and manufacturing biochar and black pellets at our Ipoh site in Malaysia!
Onnu Bioflow, our commodities trading business, launched!
Onnu Bioflow open for business!
Onnu have been in attendance at the 5th Oil Palm Biomass Conference over the past two days, as we unveiled our entrance into the Asian market with the launch of Onnu Bioflow.
Onnu Bioflow open for business!