Magelang · Central Java · Indonesia
Premium Coconut Shell Biochar — Manufactured in Indonesia
High-carbon, carbon-negative biochar for regenerative agriculture and verified carbon removal. Bulk supply and worldwide export from our factory in Magelang, Central Java.
79–88% Fixed Carbon · H/Corg < 0.7 · EBC-Aligned Specifications · 500 MT/Month Capacity
About TerraNusa Biochar
TerraNusa Biochar is the biochar division of PT Nusantara Karbon Lestari, building on over 15 years of coconut-shell charcoal manufacturing and export experience across more than 20 countries. From our facility in Magelang, Central Java, we transform renewable coconut shells — plus palm kernel shells and wood residue — into high-quality, carbon-negative biochar.
Coconut-shell feedstock delivers exceptional fixed carbon, low ash, and a stable aromatic carbon structure, making it a premium choice for both soil enhancement and durable carbon dioxide removal. We combine deep feedstock knowledge with controlled pyrolysis and rigorous, lab-verified quality control to serve agriculture and carbon-removal buyers across Europe, North America, and beyond.
Indonesia is the world's leading exporter of coconut-shell charcoal — roughly 37% of global shipments — giving our supply chain unmatched scale and traceability.
Backed by an established charcoal export operation with proven logistics, international compliance, and long-standing supplier relationships.
From Coconut Shell to Premium Biochar
Six controlled steps, logged and lab-verified.
Feedstock Sourcing
Traceable coconut shells (plus palm kernel shell, wood residue).
Controlled Pyrolysis
Oxygen-limited carbonization at 550–700°C, temperature logged per batch.
Stabilization & Weathering
Cooled and weathered ≥14 days for stability and safe transport.
Quality Control
Independent per-batch lab analysis; Certificate of Analysis issued.
Packaging
Pre-moistened; FIBC jumbo bags or woven PP bags.
Worldwide Export
Dangerous-goods-compliant docs; volume-optimized container loading.
Why Coconut Shell Makes Premium Biochar
Feedstock determines quality. Coconut shell is a dense, lignin-rich biomass that carbonizes into biochar with high fixed carbon, low ash, and a stable aromatic carbon structure — the properties that matter most for soil performance and durable carbon storage.
How carbonization temperature shapes biochar
| Property | ~350 °C | ~600 °C |
|---|---|---|
| Fixed Carbon | ~45% | ~79% |
| Total Carbon | ~73% | ~83% |
| Volatile Matter | ~50% | ~13% |
| Ash | ~4.6% | ~8.2% |
Higher pyrolysis temperatures drive a more aromatic, carbon-stable structure (lower H/Corg) — which is why we target 550–700°C.
Coconut Shell
High fixed carbon, low ash, high stability, regular pore structure — premium for soil + CDR.
Palm Kernel Shell
High fixed carbon, good porosity, slightly higher ash — strong cost-effective secondary.
Wood Residue
Uniform, ~75% fixed carbon — widely accepted soil amendment.
Values reflect typical published ranges for these feedstocks; final product values are confirmed per batch.
Inside Our Factory
Company Information
Placeholder data — replace with real records.
- Legal Entity
- PT Nusantara Karbon Lestari
- Trade Name
- TerraNusa Biochar
- Parent Business Established
- 2009 (coconut-shell charcoal)
- Biochar Division Established
- 2024
- Owner & Director
- Hendra Wijaya
- Factory Address
- Jl. Raya Magelang–Yogyakarta KM 10, Mertoyudan, Kabupaten Magelang, Jawa Tengah 56172, Indonesia
- Business License (NIB)
- 1234567890123
- Tax ID (NPWP)
- 01.234.567.8-901.000
- Production Capacity
- 500 metric tons / month
- HS Code
- 4402.20
- Export Markets
- EU, USA, Middle East, Asia-Pacific
- Bank Details
- Provided on the proforma invoice upon order confirmation
Technical Specifications & Product Range
Specifications reflect our flagship coconut-shell biochar. Independent batch lab analysis (Certificate of Analysis) accompanies every shipment; final values are tailored to your application.
| Parameter | Typical Value |
|---|---|
| Fixed Carbon | 79–88% |
| Total / Organic Carbon (Corg) | 80–85% |
| H/Corg Molar Ratio | < 0.7 (carbon-stable) |
| O/Corg Molar Ratio | < 0.4 |
| Ash Content | 1–8% |
| Moisture | ≤ 30% (pre-moistened ag grade) / customizable |
| pH | 8.4–9.9 (alkaline) |
| BET Surface Area | 200–400+ m²/g |
| Bulk Density | ~0.2–0.5 g/cm³ |
| Cation Exchange Capacity (CEC) | ~11–12 cmol/kg |
| Particle Size | Customizable (e.g., 0–2 mm, 2–6 mm) |
Coconut Shell — Agriculture Grade
High WHC & CEC, pre-charged option, targeting EBC-Agro.
Coconut Shell — Carbon Removal Grade
Max fixed carbon, low H/Corg, aligned with Puro.earth & Verra VM0044, ~2–3 t CO₂ stored/tonne.
Palm Kernel Shell Biochar
High fixed carbon, cost-effective.
Wood Residue Biochar
Uniform, ~75% fixed carbon.
Certification-grade parameters are confirmed by third-party laboratory analysis; certification is in progress.
What H/Corg means
The hydrogen-to-organic-carbon (H/Corg) molar ratio is the international proxy for biochar permanence. The European Biochar Certificate requires H/Corg < 0.7; premium carbon-removal tiers (e.g., Isometric agricultural soils) require < 0.5. Coconut-shell biochar's naturally low H/Corg suits durable carbon storage.
Quality limits we build toward (EBC reference, g/t dry matter)
| Element | EBC-AgroOrganic | EBC-Agro |
|---|---|---|
| Lead (Pb) | 45 | 120 |
| Cadmium (Cd) | 0.7 | 1.5 |
| Copper (Cu) | 70 | 100 |
| Nickel (Ni) | 25 | 50 |
| Mercury (Hg) | 0.4 | 1.0 |
| Zinc (Zn) | 200 | 400 |
| Chromium (Cr) | 70 | 90 |
| Arsenic (As) | 13 | 13 |
Source: European Biochar Certificate standard. PAH limit (sum of 16 EPA): EBC-Agro 6 ± 2.4 g/t; EBC-AgroOrganic 4 g/t.
Built to International Standards
We design our products and processes around the standards EU and US buyers and carbon registries recognize.
European Biochar Certificate (EBC) / World Biochar Certificate (WBC)
Administered by Carbon Standards International (Switzerland). Quality classes (AgroOrganic, Agro, Urban, Materials) with strict carbon, heavy-metal, and PAH limits; EBC-Agro grades meet the EU Fertilising Products Regulation.
european-biochar.orgPuro.earth (CORC)
Leading biochar carbon-removal standard; 1 CORC = 1 tonne CO₂ removed, permanence modeled over 100 years from the H/Corg ratio.
puro.earthVerra VM0044
Methodology for biochar carbon credits (v1.2, 2025); requires H:Corg ≤ 0.7 for soil, verified per batch.
verra.orgIsometric
200- and 1,000-year durability crediting; agricultural-soils pathway credits H/Corg < 0.5.
EU Fertilising Products Regulation (EU) 2019/1009
Biochar covered under component category CMC 14 ("Pyrolysis & gasification materials"); compliant products can carry the CE mark.
EU Carbon Removal Certification Framework (Reg. 2024/3012)
The EU's voluntary CDR framework; biochar methodology adopted 2026.
OMRI / USDA (US)
OMRI Listing for certified-organic agriculture; plant-derived, untreated biochar is eligible.
EUDR readiness
Our coconut-shell feedstock is a renewable plantation byproduct with traceable sourcing.
We build to these standards and are actively pursuing formal certification.
Biochar: The World's Leading Durable Carbon Removal
of all durable carbon-dioxide-removal deliveries in 2024 came from biochar — the most-delivered durable CDR method.
CDR.fyi · industry data, 2024–2025
CO₂-equivalent locked away per tonne of biochar, for centuries.
industry data, 2024–2025
of biochar carbon removal contracted by Google in 2025 from a single supplier. Buyers also include Microsoft, BCG and JPMorgan.
industry data, 2024–2025
per tonne CO₂ — typical price of biochar carbon-removal credits in 2025.
industry data, 2024–2025
Pyrolysis converts labile plant carbon into a stable, aromatic form that resists decomposition. Carbon that would have returned to the atmosphere is locked into a durable solid — then quantified, verified, and sold as carbon-removal credits. Permanence is governed by the H/Corg ratio, where coconut-shell biochar excels.
Carbon-Negative by Design
Durable Carbon Removal
~2–3 t CO₂e locked per tonne for centuries.
Circular Economy
Upcycles coconut shells, an agricultural byproduct.
Deforestation-Free Feedstock
Renewable plantation byproduct, not forest timber, traceable.
Healthier Soils
Water retention, nutrient efficiency, less runoff.
CO₂ figures are confirmed per batch by laboratory analysis and life-cycle assessment.
Get Our Company Profile & Spec Sheet
One PDF with our flagship coconut-shell biochar specifications, production capacity, certifications roadmap, and export terms — sent to your inbox.
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Meet Our Team
Certifications & Company Documents
Held
ISO 9001:2015
SGS/Intertek Lab Test Report (COA)
Business License (NIB)
Tax Registration (NPWP)
Certificate of Origin capability
Sample Certificate of Analysis (redacted)
In Progress / Pursuing
EBC / WBC
Certification application underway — not yet certified.
Puro.earth (CORC) registration
Certification application underway — not yet certified.
OMRI Listing
Certification application underway — not yet certified.
EU FPR / CE mark
Certification application underway — not yet certified.
As a dedicated biochar producer, we are actively pursuing internationally recognized biochar and carbon-removal certifications. Current lab-verified specifications available on request.
Quality Control & Our Guarantee
- Per-batch independent lab analysis (Corg, H/Corg, fixed carbon, ash, heavy metals, PAH)
- Certificate of Analysis with every shipment
- Pyrolysis temperature logged (550–700°C)
- Full feedstock traceability
- Third-party verification (SGS / Intertek)
- Representative sampling per EBC protocol
Our Guarantee
If a delivered batch fails the agreed specification on independent re-test, we replace it or refund the affected quantity.
Shipping, Export & Payment Terms
Packaging & Shipping
- 25 kg woven PP bags; 500 kg & 1,000 kg FIBC jumbo bags; custom.
- Pre-moistened and weathered (≥14 days).
- Dangerous-goods compliant — UN 1361, Class 4.2 (self-heating) per IMDG Amendment 42-24 (Jan 2026).
- FOB Tanjung Emas (Semarang); CIF/CFR available.
- Loading optimized for low bulk density.
Export Documents
- Commercial Invoice, Packing List, Certificate of Origin, Bill of Lading.
- MSDS/SDS, Certificate of Analysis, Dangerous Goods Declaration.
- ISPM-15 compliant pallets.
- Lead time: 2–4 weeks.
- MOQ: 1 × 20ft container (negotiable).
Payment Terms
- T/T: 30% advance, 70% against B/L copy.
- Irrevocable L/C at sight.
- Bank details provided on the proforma invoice upon order confirmation.
Frequently Asked Questions
Request a Free Sample
Receive a 1–2 kg sample with a full Certificate of Analysis. Buyer covers courier shipping.
Get a Quote / Contact Us
Tell us about your application and target volume. We respond within one business day.
- Jl. Raya Magelang–Yogyakarta KM 10, Mertoyudan, Kabupaten Magelang, Jawa Tengah 56172, Indonesia
- sales@terranusabiochar.com
- +62 812-1000-0000 (WhatsApp)
- FOB Tanjung Emas · CIF/CFR worldwide