Straw, not smoke.
Every year, Chinese farms leave behind vast amounts of rice and wheat straw. Burned or left to rot, its carbon returns to the air. We collect it from partner farms in Anhui instead.
Feedstock · crop residueOrigin logged per bale
Carbon you cansee.
Specimen 001 · Biochar · AnhuiEvery tonne starts as something you can hold.
Kepler Carbon develops, certifies and delivers measurable CO₂ removal made from Chinese crop residues. Straw that would have burned becomes porous biochar, and the carbon inside it stays in the soil for centuries.
2.5 tCO₂e per tonne
of biochar
of biochar
14 tFirst Baguatian
credits bought
credits bought
2027First issuance
year
year
Permanent, verifiable carbon removal from Chinese farmland, delivered to buyers worldwide.
Scroll to look closerAbout 01
We believe climate action means more than cutting emissions. It means taking CO₂ out of the air and keeping it locked in the ground, with proof anyone can check
Lab sample · H/Corg testRebalancing the atmosphere, on the strength of science.
Kepler Carbon brings together biochar, mineralization and ecological restoration pathways. We deliver end-to-end services, from project development and digital monitoring to international certification and the delivery of credits to buyers.
Our core material is biochar. When crop straw, stalks and husks are heated without oxygen, the carbon they captured from the air while growing is turned into a stable, porous solid. Spread on farmland, that carbon stays in the soil instead of returning to the atmosphere as the residue decays.
As a company with roots in Europe and operations in China, we work alongside governments, industrial parks, corporate buyers and international registries, so that every tonne removed is real, verifiable and worthy of trust.
From straw to soil 02
01 / 04Heat without oxygen.
At a partner pyrolysis plant the straw is heated in the absence of oxygen. Instead of burning, it turns into biochar, a stable carbon skeleton that keeps much of the carbon the plant absorbed.
Pyrolysis · O₂-freePlant energy metered
Measured, batch by batch.
Each batch gets an ID and is sampled in an accredited lab. Its carbon content and stability ratios decide how many tonnes of removal it can claim, before anyone sells anything.
H/Corg stability test2.5 tCO₂e / t biochar
Locked into the field.
The biochar is spread into farmland with GPS-logged placement. In the soil it holds water and nutrients for the farmer, while its carbon stays out of the atmosphere for centuries.
GPS placement recordIndependent verification
The market 03
A market that now buys delivered removal.
Biochar is the carbon removal method that buyers are actually receiving today. Corporate demand keeps rising, and supply that can be traced batch by batch is still scarce.
Contracted 2022 – H1 2025
3.04M t
Biochar removal credits contracted by corporate buyers, including future deliveries.
Unique buyers
290
Companies identified by CDR.fyi as buyers of biochar removal credits.
Share of durable delivery
86%
Biochar's share of all durable carbon removal credits delivered to date.
Planned 2027 deployment
10,000t
Tonnes of biochar Kepler plans to place across traceable end uses in its first delivery year.
Sources: CDR.fyi biochar market snapshot (2025) · Kepler Carbon planning, 2027 base case
A tonne you can see 04
Dig down 20 cm. That black line is the product.
Most carbon credits are a number on a screen. Ours is a layer in a field you can photograph, sample and measure again in ten years. Here is what each layer of a Kepler field does.
0 cmYield
Crops and roots
Water and nutrients stay where roots can reach them, so plants grow stronger and yields hold steadier through difficult seasons.
0–10 cmWater
Topsoil moisture
Biochar pores store water and release it slowly, helping crops ride out dry spells and reducing the need for irrigation.
10–20 cmCarbon
The biochar layer
The carbon store itself. Dense carbon that microbes struggle to break down, measured batch by batch, verified by independent bodies and issued by a registry.
20–30 cmBiology
Nutrients and microbes
A vast charged surface holds nutrients and gives useful bacteria and fungi a home, so less fertilizer washes into rivers.
What we do 05
One material. Six ways it creates value.
Built around biochar, Kepler connects carbon credits, green agriculture, soil restoration and industry support into one value chain.
01 · CreditsCredit generation and trading
We develop biochar removal projects and issue and trade credits on Carbonfuture, Isometric and Puro.earth, so every tonne removed in Chinese fields becomes an asset recognised worldwide.
Carbon credits02 · FertilizerBiochar fertilizer R&D
We blend biochar with organic fertilizer into low-carbon products that cut chemical input, build healthier soil and grow better crops.
Soil and fertilizer
03 · CropsBiochar-grown rice
Starting with healthy rice, we grow green crops with biochar fertilizer and build a supply chain from Chinese fields to international tables.
Crops
04 · UrbanBalcony potting mix
Low-carbon living also happens on a city balcony. Our biochar-based mix lets households grow fresh, safe food in the smallest spaces.
Potting mix
05 · RestorationBiochar soil remediation
Large areas of Chinese farmland suffer from acidification and salinization. We use biochar to restore soil structure and fertility.
Remediation
06 · HubChina–Europe green hub
Through overseas investment and China–Europe green transition forums, we connect technology, capital and policy across borders.
China–Europe bridgeChina–Europe 06
The first bridge for Chinese removal to the world.
We bring European markets, standards and experience to China, and help China's best low-carbon enterprises reach the global stage.
Berlin52.52°N · 13.40°E--:--
Hefei31.82°N · 117.23°E--:--
Standards · buyers · capital → ChinaBiochar · removal · know-how → Europe
14tonnes
Inaugural credits · Zhejiang Baguatian · Below2
A
First international buyer
Kepler Carbon became the first international buyer of the Zhejiang Baguatian carbon removal project, purchasing its inaugural 14 tonnes of credits on the Below2 platform.
B
A long-term commitment
A vote of confidence in the Chinese market, backed by European resources and government relationships, standing alongside China's environmental enterprises.
C
Support in both directions
European standards and buyers flow into China. Chinese removal capacity and know-how reach Europe and the rest of the world.
Why Kepler 07
Three reasons to entrust us with removal.
Buyers ask us the same three questions before they sign. Here are our answers.
Integrity
Science and integrity first.
We only develop verifiable, clearly additional, permanent removal. Every credit is backed by a documented chain of evidence that buyers and auditors can follow from field to registry.
Delivery
Full-chain delivery.
From site to retirement, our teams cover project development, digital MRV and trading, and work with independent verification bodies at every issuance. Fewer hand-offs, less lost information.
Reach
Global reach, local roots.
Our teams and projects span multiple countries. We are fluent in international registry rules and in the ESG procurement standards of multinational buyers, and at home in Chinese agriculture.
Work with us 08
Build a negative-carbon future with us.
Route ABuyers
Source high-quality removal credits
Durable biochar removal from Chinese farmland, with the field and lab record behind every tonne.
Carbon credits Route BPartnersSupply biochar or co-develop a project
Pyrolysis plants, fertilizer companies and industrial parks that want access to international registries and buyers.
Partner with us Route CInvestorsBack the delivery record
Request our investor presentation and join a company built to make Chinese carbon removal buyable to European standards.
Request the deck