Skip to main content
PT Intan Nusantara Indonesia HomePT Intan Nusantara Indonesia

Indonesian Steam Coal for Global Markets

Reliable Indonesian steam coal supply from selected sources in Kalimantan and Sumatra, with quality control, export documentation, and international delivery support.

Calorific ValueGAR 3800–5000+ kcal/kg
Commercial TermsFOB / CFR / CIF
Supply OriginsKalimantan / Sumatra
Indonesian steam coal export loading operation with bulk carrier vessel and stockpile conveyors
Export SupplyActive
Kalimantan & Sumatra
Loading HubsTaboneo & Muara Berau

Indonesian Steam Coal Product Categories

Supplying versatile calorific grades adapted to utility power boilers and heavy industrial furnaces.

Mid-Rank Thermal Coal

Our primary export grade delivering dependable energy density for pulverized coal (PC) fired utility boilers and high-output industrial furnaces throughout Asian coastal terminals.

Indonesian mid-rank export thermal coal chunks with balanced volatile matter
High Combustion Stability

East & South Kalimantan Basins

Standard Contract Specifications (COA)
Total Moisture (ARB)22% - 28%
Ash Content (ADB)6% - 10%
Total Sulfur (ADB)0.6% - 1.0%
Volatile Matter (ADB)38% - 43%
Hardgrove Index (HGI)48 - 52
Best suited for:Pulverized Coal BoilersCoastal Power StationsLarge Paper & Textile Mills
Contract terms: FOB / CFR / CIF (Incoterms 2020)

High-CV Thermal Coal

High-heat output steam coal with reduced moisture and higher fixed carbon, ideal for advanced supercritical utilities seeking reduced volume consumption.

High calorific value export-grade coal for supercritical power stations
Low Moisture & High Net HeatNAR 4700+ kcal/kg
Moisture (ARB)14% - 20%
Ash (ADB)8% - 12%
Sulfur (ADB)0.8% - 1.2%

Low to Mid-Rank Coal

Cost-competitive energy source with low sulfur and favorable ash fusion temperatures, widely used in cement rotary kilns and circulating fluidized bed (CFB) boilers.

Low to mid-rank Indonesian steam coal texture with low ash and sulfur
Favorable Slagging & Low SulfurNAR 3400 - 3800 kcal/kg
Moisture (ARB)30% - 38%
Ash (ADB)4% - 8%
Sulfur (ADB)0.2% - 0.8%

Cargo Blends & Sizing

Multi-origin blending from South and East Kalimantan pits to match custom environmental limits, tightly calibrated volatile matter, or specific ash chemistry.

Industrial coal sizing, screening, and stockpile coordination facility
Stockpile Quality Control

Kalimantan & Sumatra Jetties

Customization Capabilities
Sulfur Cap Adherence: Strict limitation to ≤0.5% or ≤0.8% TS.
Crushing & Screening: Calibrated 0-50mm sizing for automated hopper feeders.
Laycan Staging: Multi-concession consolidation to match vessel nomination laycans.
Coordinated via verified IUP-OP concessionaires
Pre-Shipment Quality Governance•Independent Inspection Protocol

ASTM & ISO Laboratory Testing Matrix

SGS CertifiedSucofindo TestedCarsurin Verified
Gross Calorific ValueASTM D5865
Tol: ±50 kcal/kgISO 1928
Total MoistureASTM D3302
Tol: ±0.5% ARBISO 589
Total SulfurASTM D4239
Tol: ±0.05% ADBISO 351
Ash ContentASTM D3174
Tol: ±0.3% ADBISO 1171
Ash Fusion Temp (IDT)ASTM D1857
Tol: >1150°C Red.ISO 540
Hardgrove GrindabilityASTM D409
Tol: ±2 HGIISO 5074

Specification Guarantee: All cargoes are sampled, assayed, and certified at the loading anchorage (Taboneo or Muara Berau) by accredited surveyors. Certificate of Sampling and Analysis (COA) and Draft Survey Certificate (COW) accompany every commercial shipment.

End-to-End Operational Chain

Supply & Marine Logistics Workflow

A disciplined export chain connecting origin stockpiles to international discharge berths.

  1. 01
    Heavy mining excavators and haul trucks extracting coal in an Indonesian open-pit concession
    Phase 01
    Direct Concession Access

    Step 01 of 06

    Stage 01•Direct Concession Access

    Source Mine Concession Off-take

    Active off-take coordination with verified IUP-OP concessionaires and established producers across South Kalimantan, East Kalimantan, and South Sumatra to secure continuous pit-to-stockpile cargo availability.

    Kalimantan BasinsSumatra ReservesDirect Off-take
    Energy Density:GAR 3800–5000+ kcal/kg
  2. 02
    Independent laboratory quality surveyor conducting chemical analysis of coal samples
    Phase 02
    Accredited Laboratory Sampling

    Step 02 of 06

    Stage 02•Accredited Laboratory Sampling

    Pre-Shipment Quality Testing

    Rigorous stockpile sampling, moisture determination, and proximate chemical analysis performed by certified independent inspection agencies (SGS, Sucofindo, Surveyor Indonesia) prior to river barge dispatch.

    SGS SamplingSucofindo TestingASTM / ISO Standards
    Inspection Protocol:Certified Analysis (COA)
  3. 03
    Commercial maritime export shipping documentation and trade finance instruments
    Phase 03
    Statutory Trade Compliance

    Step 03 of 06

    Stage 03•Statutory Trade Compliance

    Regulatory Export Clearances

    End-to-end administration of Indonesian Ministry of Energy and Mineral Resources (ESDM) export approvals, Ministry of Trade export allocations, Surveyor Certificate of Origin (COO), and customs PEB filings.

    ESDM ComplianceCustoms PEBCertificate of Origin
    Regulatory Status:Official ESDM Registered
  4. 04
    Tugboat towing laden coal barge along an Indonesian river corridor in Kalimantan
    Phase 04
    Inland Waterway Convoy

    Step 04 of 06

    Stage 04•Inland Waterway Convoy

    River Barging & Stockpile Logistics

    Coordinated tug and barge convoy transit (300 ft / 7,500–10,000 DWT) navigating Kalimantan river arteries from inland staging jetties downriver to designated deep-water anchorage zones.

    300ft Barges7,500–10,000 DWTRiver Navigation
    Marine Capacity:Dedicated Fleet Staging
  5. 05
    Deepwater bulk carrier loading steam coal via floating cranes at offshore anchorage
    Phase 05
    Deep-Water Vessel Stevedoring

    Step 05 of 06

    Stage 05•Deep-Water Vessel Stevedoring

    Anchorage Vessel Transshipment

    Rapid floating crane transshipment onto ocean-going geared and gearless Supramax or Panamax bulk carriers at Taboneo or Muara Berau anchorages, under continuous surveyor draft survey monitoring.

    Taboneo AnchorageMuara BerauSupramax / Panamax
    Loading Rate:8,000–15,000 MT / Day
  6. 06
    Commercial bulk ocean vessel navigating international shipping lanes to destination discharge berth
    Phase 06
    International Discharge Berth

    Step 06 of 06

    Stage 06•International Discharge Berth

    Ocean Delivery & Settlement

    Final document dispatch (Bill of Lading, Certificate of Weight, Certificate of Sampling & Analysis) with continuous satellite voyage tracking until successful discharge at international receiving berths.

    FOB / CFR / CIFFull COA & BLGlobal Discharge
    Commercial Terms:FOB / CFR / CIF Delivery
On-Site Technical Due Diligence

Want to inspect these mines, stockpiles, and jetties firsthand?

Join our guided South Kalimantan site visit program. Fixed IDR 8,500,000/day package for 1 to 4 individuals including 4WD transport, PPE, and certified sample bags.

View Site Visit Proposal

Export Services Across the Trade Lifecycle

Commercial and logistics coordination ensuring compliant and timely cargo dispatch.

Direct Coal Sourcing & Concession Network

Securing steady steam coal off-take directly from reputable concessionaires in South Kalimantan, East Kalimantan, and South Sumatra with verified ESDM MODI licenses and rigorous stockpile oversight.

Indonesian open-cut coal concession and stockpile operations
Direct Origin Off-Take

Kalimantan & Sumatra Concessions

Concession Management Pillars
Pit-head sampling & moisture screening
Calibrated blending across multiple seams
Dedicated jetty staging & barging slots
Origin BasinsKalimantan & Sumatra
Concession TypeProduction IUP-OP
Stockpile CapacityContinuous Off-take
Reliable long-term baseload coal supply agreements

International Export Trading

Executing global commodity trade under standard Incoterms with structured trade finance instruments including Irrevocable Documentary Letters of Credit (L/C at sight) and flexible payment schedules.

FOB Vessel TaboneoCFR Asian Main PortsCIF DeliveryDoc L/C at Sight
Contract Execution:Incoterms 2020 Compliant

Marine Logistics & Transshipment

End-to-end maritime management coordinating tug-and-barge river convoys to deepwater open-sea anchorages at Taboneo and Muara Berau with fast loading rates and draft surveys.

300-330ft River BargesFloating CranesMuara Berau AnchorageTaboneo Loading Point
Vessel Handling:50,000 - 75,000 MT Laycans

Independent Quality Assurance

Arranging pre-shipment sampling, loading hold inspections, and laboratory proximate assay by internationally recognized surveyors to guarantee compliance with contracted parameters.

COA & COW IssuanceDraft Survey VerificationASTM / ISO ProtocolsCarsurin & Surveyor ID
Survey Standards:Accredited Lab Assay

Commercial & Export Documentation

Rapid turnaround of clean commercial documentation required for customs clearance and bank negotiation: Certificate of Origin, Bill of Lading, Export Declaration (PEB), and NPE approvals.

Certificate of Origin (COO)Clean on Board B/LSurveyor Report (LS)Customs NPE Clearance
Document Dispatch:Clean L/C Negotiation
INTERNATIONAL BUYER ASSISTANCE•Global Trading Desk

Dedicated Commercial Desks & Live Laycan Coordination

Direct point of contact for international procurement directors, offering daily Statement of Facts (SOF) updates, weather & tidal monitoring at Taboneo/Muara Berau, demurrage mitigation, and responsive post-fixture support.

Quality Assurance & Export Compliance

Adhering to strict international commodity standards and full commercial traceability.

In international coal trading, trust is founded upon specification precision and verifiable documentation. PT Intan Nusantara Indonesia works exclusively with accredited third-party surveyors to test and verify every metric ton prior to vessel departure.

  • Independent Laboratory Analysis: Testing performed under ASTM, ISO, and GB standards by SGS, PT Sucofindo, or PT Surveyor Indonesia.
  • Key Parameter Verification: Total Moisture, Ash Content, Volatile Matter, Fixed Carbon, Total Sulfur, Hardgrove Grindability Index (HGI), and Calorific Value (GAR/NAR).
  • Regulatory Export Filings: Complete export approvals, customs export declarations (PEB), and traceable origin verification.
Accredited testing laboratory conducting coal sample analysis under ASTM and ISO standards
Accredited Inspection

ISO & ASTM Independent Quality Testing

Continuous sampling by SGS, Sucofindo & Surveyor Indonesia

Standard Export Documentation Package

COA

Certificate of Sampling & Analysis

COW

Certificate of Weight by Draft Survey

COO

Certificate of Origin (Form D / E / AK)

B/L

Clean on Board Ocean Bill of Lading

COMMERCIAL INVOICE

Final Commercial Settlement Invoice

RADIOACTIVE / HAZMAT

Non-Radioactivity & Hold Cleanliness

Note: All documentation is authenticated and verified for customs presentation and banking letter of credit negotiation.

About PT Intan Nusantara Indonesia

Bridging Indonesian coal resources with global energy demand through professional export coordination.

Connecting Indonesian Coal Basins with International Energy Demands

Established in 2016 and headquartered in Graha Pena, Makassar, PT Intan Nusantara Indonesia operates as an authorized export trading company with paid-up capital of IDR 15,000,000,000, partnering with 21 mining concessions (>22,000 Ha) and 12 jetty terminals across South Kalimantan.

We operate at the critical intersection of mining concessionaires, independent quality surveyors, inland barge operators, and international ocean freight carriers. Our operational model emphasizes strict contract execution, dependable cargo staging, transparent sampling protocols, and complete export documentation.

Company Establishment2016 (Makassar HQ)
Paid-up CapitalIDR 15,000,000,000
Licensure NumbersNIB & ET 03.ET-04.24.0202
Concession Alliances21 Mines (22,292 Ha)
Statutory Capital: IDR 15 Billion Fully Paid
Heavy mining excavators operating in an open-pit Indonesian coal concession
Active Extraction BasinsKalimantan & Sumatra

Direct Concession Sourcing Network

Direct production off-take agreements with 21 verified IUP and PKP2B concessionaires across South Kalimantan covering 22,292 hectares. Full chain-of-custody transparency from pit to loading port across GAR 3400 to 6300+ kcal/kg.

21 Partner Concessions (22,292 Ha)PKP2B (Tanjung Alam Jaya, Baramarta, Kadya)Continuous Pit Extraction & Crushing
Concession Area:21 Concessions / 22,292 Ha

Rigorous Quality Assurance

Every export parcel is independently sampled, prepared, and analyzed at origin stockpiles and loading anchorage in strict accordance with international ASTM D2234 and ISO 13909 standards.

SGS, Sucofindo & Carsurin AssaysAccredited COA & COW IssuanceMoisture, Ash & Total Sulfur Control
Sampling Standard:ASTM D2234 / ISO 13909

Integrated Transshipment Coordination

Fleet coordination across 12 partner river jetties with loading speeds up to 1,200 MT/hr connecting directly to Taboneo, Asam Asam, Muara Satui, and Tanjung Pemancingan anchorages.

12 Dedicated Jetty Barge PortsTaboneo, Asam Asam, Satui AnchoragesConveyor Loading: Up to 1,200 MT/Hr
Jetty Loading Rate:Up to 1,200 MT/Hour

Long-Term Supply Alliances

Structured supply programs tailored for power generation utilities and heavy industrial manufacturing facilities across the Asia-Pacific region, backed by disciplined trade governance.

Baseload & Spot Volume Off-TakeDocumentary Letter of Credit (L/C)Demurrage-Free Loading Discipline
Procurement Model:Quarterly & Multi-Year Programs

Why Partner With PT Intan Nusantara Indonesia

Built upon disciplined trade governance, clear communication, and dependable operational follow-through.

Direct Origin Access & Concession Network

Direct production off-take contracts with authorized IUP-OP concessionaires across East Kalimantan, South Kalimantan, and South Sumatra. We eliminate intermediary ambiguity, ensuring full traceability from the mine pit to the international ocean carrier.

Indonesian open pit mining equipment and organized coal stockpiles
Concession Direct Supply

Kalimantan & Sumatra Production

Institutional Governance Standards
Multi-Basin Redundancy

Active loading points in Taboneo, Muara Berau, and Tarahan to ensure supply continuity.

Direct Allocation Contracts

Prioritized stockpile quotas preventing allocation shortfalls during high-demand cycles.

ESDM MODI Compliance

Strict legal entity vetting with verified Indonesian mining and export registrations.

Trusted by international utilities & industrial buyers

Zero Off-Spec Assurance

Every shipment is strictly screened against boiler technical parameters. Comprehensive pre-shipment stockpile assay eliminates the risk of off-spec cargo rejection.

Pre-Loading Stockpile AssaysAccredited Independent COAMoisture & Ash Slagging Control
Quality Protocol:SGS / Sucofindo Verified

Single-Point Commercial Desk

Direct international trade communication with rapid response times. Procurement teams receive daily Statement of Facts (SOF) and clear commercial transparency.

< 2-Hour Inquiry ResponseDaily SOF & Laytime ReportsMulti-Currency Settlement Support
Trading Desk Response:Dedicated Account Officers

Maritime Laytime Coordination

Rigorous coordination between mine conveyor jetties, river barge fleets, and ocean bulk carriers at Taboneo and Muara Berau to maintain high loading rates.

300-330ft Tug & Barge FleetsFloating Crane AllocationTidal & Weather Monitoring
Anchorage Turnaround:Efficient Vessel Laycan

Accurate Export Documentation

Rapid issuance of complete shipping documentation required for customs clearance at destination ports and clean negotiation under documentary Letters of Credit.

Certificate of Origin (COO)Clean on Board Bill of LadingCustoms PEB & NPE Approvals
Documentation Dispatch:Clean L/C Negotiation
LONG-TERM COAL SUPPLY ALLIANCE•Quarterly & Annual Off-take Programs

Structured Supply Programs for Global Utility Baselines

Whether fulfilling multi-vessel monthly baseloads or customized spot shipments, our commercial desk structures binding agreements with predictable pricing models, indexed benchmarks, and firm demurrage protections.

About Our Company

Structured Export Execution

A step-by-step transaction timeline from initial inquiry to final commercial settlement.

Inquiry & Technical Specification Review

Buyer submits required calorific range, allowable sulfur and moisture thresholds, volume commitment (MT), delivery terms (Incoterms 2020: FOB/CFR/CIF), and target laycan window.

Required Buyer Procurement Parameters:
Calorific BasisGAR 3800 – 5000+ kcal/kg
Moisture & AshStrict threshold limits
Standard Parcel50,000 – 150,000+ MT
Incoterms BasisFOB / CFR / CIF
Commercial SLA: Formal Review < 24 Hours

Stockpile Verification & Commercial Offer

Our commercial desk validates origin stockpile availability across IUP-OP concession partners, verifies recent proximate assays, and issues a formal commercial offer with transparent pricing.

Offer Validation Safeguards:
  • Concession Pit Allocation
  • Pre-Loading Stockpile Assay Check
  • Index-Linked / Fixed Pricing Framework
  • Laycan Window Feasibility Confirmation
Offer Validity:5 Business Days Firm

Contract & Documentary Finance Execution

Bilateral Sale & Purchase Agreement (SPA) executed with clear quality penalty and rejection formulas. Financial security is established via Irrevocable Documentary Letter of Credit (UCP 600 at sight).

Bilateral SPA Contract ExecutionIrrevocable Documentary L/C (UCP 600)Contractual Quality Rejection ClausesTransparent Demurrage & Despatch Terms
Payment Security:Top-Tier Bank Documentary L/C

Inspection & Loading Port Sampling

Internationally accredited surveyors (SGS, Sucofindo, or Carsurin) conduct continuous mechanical increment sampling at conveyor belts and river stockpiles in full accordance with ASTM and ISO protocols.

ASTM D2234 & ISO 13909 SamplingStockpile & Barge Pre-Loading AssayBarge Draft Survey (Weight Determination)Continuous Temperature & Slagging Check
Quality Protocol:100% Accredited Surveyor Assay

Vessel Loading & Customs Clearance

Barges deliver coal to nominated ocean bulk carriers at Taboneo or Muara Berau deepwater anchorages. High-capacity floating cranes achieve 8,000–15,000 MT/day loading rates under continuous supervision and Customs (NPE) clearance.

Taboneo / Muara Berau AnchorageHigh-Capacity Floating CranesDaily Statement of Facts (SOF)Indonesian Customs PEB & NPE Clearance
Anchorage Loading:8,000 – 15,000 MT/Day

Document Delivery & Commercial Settlement

Issuance and courier dispatch of complete commercial documentation for clean banking negotiation under documentary L/C and smooth destination customs clearance.

Standard Shipping Dossier for L/C Negotiation:
Certificate of Sampling & Analysis (COA)
Clean On-Board Ocean Bill of Lading (3/3)
Certificate of Origin (COO Form E / AK / ICO)
Certificate of Weight (COW) & Draft Survey
Commercial Invoice & Signed Packing List
Marine Cargo Insurance Certificate (CIF)
Courier Dispatch: 3–5 Days via Express Courier

Disciplined Trade Turnaround

From initial specification alignment to clean ocean bill of lading, our operational desk eliminates demurrage exposure and administrative delays.

Total Cycle Time15–25 Days
Off-Spec Rejections0.00%
Laycan Compliance100% On Schedule

International Market Reach

Supplying qualified commodity importers and industrial operators across key consuming destinations.

PACIFIC & INDIAN OCEAN SHIPPING
4 Anchorages Active
Origin Concessions to Global Discharging Ports

Connecting Indonesian Coal Basins to Pacific Rim & Indian Ocean Terminals

PT Intan Nusantara Indonesia bridges 21 mining concessions (>22,000 Ha) and 12 jetty terminals directly with international power generation utilities, cement producers, and steel mills under formalized Incoterms 2020 contracts.

Southeast AsiaASEAN
3 – 6 Days

Vietnam, Thailand, Malaysia

East AsiaPanamax
8 – 12 Days

China, Taiwan, South Korea

South AsiaUltramax
10 – 14 Days

India, Bangladesh Ports

ET Batubara 03.ET-04.24.0202 | NIB 8120214271016
Southeast Asian industrial power and manufacturing terminal
3–6 Days Transit
ASEAN Trade Corridor

Southeast Asia Regional Off-Take

High-Reactivity ASEAN Grid Supply

Supplying expanding energy infrastructure, cement plants, and industrial boilers across Vietnam, Thailand, Malaysia, and the Philippines.

Calorific Range:GAR 4200 - 4800
Key Ports:Cai Mep, Haiphong, Bataan
Vessel Class:Supramax & Handy-size
Active Laycan CorridorDetails
Thermal power generation utility station in East Asia industrial port
8–12 Days Transit
Pacific Rim Hub

East Asia Baseload & Blending

Supercritical Utility Blending

Serving industrial buyers, power generation groups, and commercial traders in China, Taiwan, and broader Pacific Rim ports.

Calorific Range:GAR 3800 - 5000+
Key Ports:South China, Ningbo, Guangzhou
Vessel Class:Panamax & Capesize Bulk
Panamax CapableDetails
Dry bulk cargo carrier heading to South Asian deepwater ports
10–14 Days Transit
Indian Ocean Gateway

South Asia Utility & Industry

Thermal Utilities & Captive Smelters

Supplying cost-effective sub-bituminous thermal coal with minimal sulfur for coastal utilities, captive power, and manufacturing across India & Bangladesh.

Calorific Range:GAR 3400 - 4200
Key Ports:Mundra, Kandla, Paradip
Trade Finance:Irrevocable L/C at Sight
Standard L/C TermsDetails
4 DEEPWATER ANCHORAGES15,000 MT/Day

South Kalimantan Transshipment

Floating crane transshipment operations connecting 12 partner river jetties to deep-draft ocean bulk vessels:

Taboneo AnchorageLat 03°33'S | Long 114°28'E
14 - 18m Draft
Asam Asam AnchorageLat 03°55'S | Long 115°06'E
12 - 16m Draft
Muara Satui AnchorageLat 03°51'S | Long 115°27'E
14 - 18m Draft
Tj. PemancinganLat 03°11'S | Long 116°18'E
16 - 20m Draft
Speed: Up to 15,000 MT/DayLogistics
Serving qualified international buyers subject to commercial qualification, destination regulations (Permendag 23/2023), and verified vessel laycan availability.
View Global Market Dossier →
A Few Things to Know

Good questions. Clear answers.

Get to know our export framework and trade specifications before initiating supply contracts.

We coordinate Indonesian steam and thermal coal ranging from GAR 3800 to 5000+ kcal/kg, covering low-to-mid rank and high-CV grades tailored for power utilities and industrial boilers.

SECURE YOUR CARGO ALLOCATION

Secure Your Steam Coal Supply from Verified Indonesian Concessions.

Connect with our export desk for current vessel laycan schedules, GAR specifications, and trade finance terms (FOB / CFR / CIF).

Commercial Trade Desk

Connect directly with our coal export team to discuss cargo specifications, pricing mechanisms, and vessel laycans.

Commercial Desk Emailemail@pt-ini.com

Responses within 24 business hours

Direct WhatsApp & MobileDirect WhatsApp Desk: +62 856-2400-8063

Direct commercial trade support

Office Address

PT Intan Nusantara Indonesia

Jl. Urip Sumoharjo No.20 5th Floor, Pampang, Panakkukang, Makassar City, South Sulawesi 90234

(Official registered commercial office)

Submit Commercial Inquiry

Please provide your cargo specifications, delivery window, and destination port. Our trade desk will review and respond promptly.

Inquiries are processed under strict commercial confidentiality.