Bombay Bioworks Maharashtra, India Carbon Materials Manufacturer

Three fixed-carbon products. One facility. Agricultural feedstock converted into material that can be tested, shipped, applied, and verified.

Biochar. Activated Carbon. Carbon Fuel.
01 — Biochar ≥70% Biochar Fixed Carbon · IBI Class 1 · EBC-Agro

Applied to agricultural soil at 1–5 t/ha. H/Corg ratio below 0.4 per EBC protocol — the threshold for multi-centennial carbon stability. Measurable CEC improvement on application. Eligible for verified CDR credits.

Specifications & applications →
02 — Activated Carbon 900+ Activated Carbon BET Surface Area m²/g · ASTM D3663

Micropore-dominant structure. Iodine number ≥900 mg/g per ASTM D5742. Available in granular (GAC), powdered (PAC), and pelletized forms. Water treatment, gas purification, and industrial adsorption.

Specifications & applications →
03 — Carbon Fuel 4,500 Carbon Fuel Minimum Calorific Value kcal/kg · ASTM D5865

Dense biogenic fuel. Fixed carbon ≥65% per proximate analysis (ASTM D3172). Low sulfur. Drop-in for thermal coal in industrial boilers, kilns, and furnaces. Export markets: Japan, South Korea, Southeast Asia.

Specifications & applications →
What this is —— And what it isn't

The voluntary carbon market is full of claims. Most of them rely on not being checked too closely.

We make physical carbon materials. A tonne of biochar with a fixed carbon content above 70% and an H/Corg ratio below 0.4 is chemically stable across multi-centennial timescales — not because we say so, but because that's what the European Biochar Certificate protocol tests, what the International Biochar Initiative standard specifies, and what independent laboratory analysis confirms on every batch we ship.

Activated carbon with a BET surface area above 900 m²/g is doing adsorption work in a filter right now. Carbon fuel displacing thermal coal in an industrial boiler is a displacement that happened. These aren't projections or credits on a ledger. They're materials with specifications, test certificates, and an end use.

We don't manufacture offsets. We manufacture carbon. The permanence is in the product, not the paperwork.

How we verify and certify →
H/Corg molar ratio < 0.4 EBC Permanence Threshold · 2023

Below this molar ratio, pyrolytic carbon resists biological and chemical oxidation across centuries. The EBC and IBI both use this value as the boundary between stable and unstable biochar. Our biochar targets H/Corg ≤ 0.35, measured per EBC accreditation protocol on every production batch.

Iodine number ≥900 mg/g · ASTM D5742

The primary quality indicator for micropore surface area in activated carbon — and the proxy buyers use for adsorption capacity. Higher iodine number means more available surface for contaminant capture. Premium grades reach 1,100 mg/g, suited to pharmaceutical-grade water and solvent recovery applications.

Fixed carbon ≥65% Proximate Analysis · ASTM D3172

Fixed carbon content governs calorific value, combustion behaviour, and ash output in industrial applications. At ≥65% FC, our carbon fuel product meets the specification range for thermal coal substitution in most boiler and kiln configurations. Ash content is held below 8% across standard production grades.

Where each product goes.

Agriculture & Soil
Water & Air Treatment
Food & Beverage
Industrial Process
Energy & Fuel
Biochar
Soil amendment. CEC improvement. CDR credit generation. Typical application: 1–5 t/ha.
Activated Carbon
Potable water treatment. Wastewater polishing. Groundwater remediation. VOC removal.
Decolorization. Deodorization. Sugar refining. Edible oil purification.
Solvent recovery. Gas treatment. Catalyst support. Effluent polishing.
Carbon Fuel
Thermal coal displacement. Boilers, kilns, furnaces. Partial coke replacement.
Industrial energy supply. Export: Japan, South Korea, Southeast Asia.