Unlocking the world’s climate-positive potential

Onnu Bioflow exists to develop the market for climate-positive commodities, address unique local challenges, and deliver benefits to people and businesses in the region, and the planet as a whole.

Active in Europe, we have recently expanded into South East Asia. This is a region perfectly placed to lead the world in large-scale climate solutions, through the abundance of biomass and thriving agricultural and industrial sectors.

Scientist in white coat examining crops in lush green agricultural field

Our story

Originating in the UK, Onnu built a leading specialism in biomass pyrolysis, helping to the build the biochar carbon removals industry in a way that was commercially beneficial.

biochar bags in truck
landcape with field and sky

Launching our first project in SE Asia, we joined our pyrolysis expertise with torrefaction and AD to widen the climate positive products generated from abundant waste biomass.

With our own consistent supply of sustainable commodities, we launched Onnu Bioflow to trade in biomass-derived products and provide reliable supply chains to large-scale customers.

Aerial view of cargo ship loaded with colorful containers crossing blue ocean

Who we are

Onnu is a project developer and technology provider headquartered in the UK. Onnu develops its own pyrolysis plants, as consulting and advising on plants for clients across Europe & SE Asia.

Visit Onnu

Onnu Biochar is the biochar trading arm of Onnu, selling EBC-certified biochar and soil improvement products for retail customers in Europe.

Visit Onnu Biochar

Onnu Bioflow is the renewable commodities trading arm of Onnu, catering to larger scale customers around the world.

Visit Onnu Bioflow

Our locations

Petronas Towers rising through lush tropical trees against bright blue sky

Malaysia

Address

A-29-8, Menara UOA Bangsar, Jalan Bangsar Utama 1, Bangsar 59000, Kuala Lumpur

Stone bridge over tranquil river with lush trees and buildings along riverbanks

United Kingdom

Address

Onnu Ltd, York House, York Road, Maidenhead, SL6 1SF, United Kingdom

We're hiring!

Latest insights

Onnu Bioflow Live and Manufacturing Biochar
Case Study: Carbon Cell
BioInnovAsia 2025 Summary