Reliable Indonesia Coal Supply for Domestic & International Markets
IOMI COAL supplies GAR-5000 to GAR-6300 thermal coal on FOB and CFR terms, with clear contractual specifications, independent inspection and professional transaction management.
Our Product
We supply Indonesian steam (thermal) coal for power generation, cement, and industrial boilers. Each cargo is sold against an agreed contractual specification, so buyers know the calorific value, moisture, ash, volatile matter and size they are paying for before loading begins.
Contractual Coal Specification
Contractual parameters for each IOMI COAL grade. Select a grade above to highlight its column. Final values are fixed in the sales contract for each shipment.
NAR and GAR are given as typical and minimum values. ARB: as received basis. ADB: air dried basis. Fixed carbon is calculated by difference. Final specification is subject to specific source, production conditions and the contract for each shipment.
Why Choose IOMI COAL
Reliable Supply
We focus on dependable supply and on-time delivery to support your operations.
Consistent Quality
Quality control and monitoring to ensure coal meets agreed specifications.
Commercial Flexibility
We work with our customers to structure suitable supply arrangements.
International Experience
Experienced team in handling international coal trading requirements.
Long Term Partnerships
Building sustainable relationships based on trust, transparency and performance.
Weekly Indonesia Coal Index (ICI)
The Indonesia Coal Index is a weekly price reference for Indonesian thermal coal by calorific grade. We publish the latest values here for our buyers' reference.
Company News
About IOMI COAL
An Indonesian coal mine contractor and thermal coal trader serving buyers at home and abroad.
IOMI COAL
IOMI COAL is a brand name of PT Tio Izumi Coal Indonesia which is operating in coal mine contractor and trading, supply steam/thermal coal. We focus on supplying thermal coal to domestic and international markets, working with buyers and commercial partners who require reliable supply solutions and professional transaction management.
Our work spans the full chain from the pit to the vessel. Through partnerships with licensed mines in South Kalimantan we secure production volume; our team then manages stockpiling, quality sampling, barging from the Hasnur and Talenta jetties, and transshipment at Taboneo Anchorage. Buyers deal with a single counterparty that coordinates each step against the agreed contract.
We serve power plants, cement producers, industrial users and traders in Indonesia and across Asia, including China, India, Vietnam, the Philippines, Singapore and Japan. Every transaction is built on clear specifications, independent inspection where the contract requires it, and documentation that stands up to review.
Our Vision
To become a trusted Indonesian coal supply partner recognized for reliability, quality and professional execution.
Our Mission
To provide dependable coal supply solutions that meet the commercial and operational requirements of our customers, while building long term relationships with business partners across domestic and international markets.
Our Principle
Reliability, quality, transparency and long-term partnerships guide the way we work with customers and business partners.
Organization Chart
The Board of Directors of PT Tio Izumi Coal Indonesia.
Click a photo to upload a director portrait (3:4, e.g. 600 × 800 px). Edit names and titles in the fields.
Work with IOMI COAL
Tell us your grade, volume and destination port.
Mine Partnership
Production capacity secured through partner mines in Kalimantan.
Mine and Capacity
We work with partner mines whose output, coal quality and logistics fit our buyers' requirements. Combining several sources allows us to maintain supply continuity and offer a range of calorific values.
Steam / Thermal Coal
Iomi Coal-50 to Iomi Coal-63: GAR-5000, GAR-5500, GAR-5800, GAR-6000 and GAR-6300 Indonesian thermal coal, sold on agreed contractual specifications.
What is thermal coal?
Thermal coal, also called steam coal, is coal burned to raise steam for electricity generation and to provide heat for cement kilns, industrial boilers and other processes. Its value is set mainly by the energy it releases, measured as calorific value in kilocalories per kilogram (kcal/kg).
Indonesian thermal coal is widely used across Asia. It is typically sub-bituminous to bituminous, with moderate to high volatile matter that makes it easy to ignite, and generally low ash and low sulphur, which helps power plants manage emissions and handling costs.
Because moisture varies with the source and weather, calorific value is always quoted on a stated basis. In Indonesian trade the reference is usually GAR (gross as received), while many buyers in China and India also evaluate NAR (net as received). Our product names follow typical GAR: Iomi Coal-50 is GAR-5000, Iomi Coal-55 is GAR-5500, and so on up to Iomi Coal-63 at GAR-6300.
Understanding the parameters
Values are reported on two bases. As Received Basis (ARB) describes the coal as delivered, including all moisture. Air Dried Basis (ADB) describes the coal after surface moisture has evaporated in the laboratory.
- Gross Calorific ValueGAR
- Total heat released per kilogram of coal as received, including the heat recovered from condensing water vapour. The main reference for grading and pricing Indonesian coal.
- Net As ReceivedNAR
- Heat available after deducting the energy used to evaporate moisture. Closer to the useful heat in a boiler and preferred by many power utilities.
- Total MoistureTM
- All water in the coal as delivered. Higher moisture lowers usable heat and adds weight to freight.
- Inherent MoistureIM
- Water held within the coal structure after air drying. It reflects the rank of the coal.
- Ash ContentASH
- Non-combustible residue left after burning. Affects boiler performance, slagging and ash disposal.
- Volatile MatterVM
- Gases released when coal is heated. High volatile matter gives easy ignition and stable combustion.
- Total SulphurTS
- Sulphur content, which forms SO₂ when burned. Important for emission limits and equipment corrosion.
- Fixed CarbonFC
- The solid combustible part of coal, calculated by difference: 100 minus moisture, ash and volatile matter.
- Hardgrove Grindability IndexHGI
- How easily coal can be pulverized. A higher index means coal is easier to grind for pulverized-fuel boilers.
- Size 0–50 mmSize
- Share of coal within 0 to 50 mm. A minimum of 85% keeps handling and feeding consistent.
Available Grades
Contractual Coal Specification
Click any value in the table to edit it.
NAR and GAR are given as typical and minimum values. ARB: as received basis. ADB: air dried basis. Fixed carbon is calculated by difference. Final specification is subject to specific source, production conditions and the contract for each shipment.
Quality That Meets Agreed Specifications
Quality consistency is an important part of every coal transaction.
Clear Specifications
We work with customers to establish clear product specifications and quality requirements before each transaction.
Quality Management
Our approach focuses on contractual specifications, defined quality parameters, sampling and testing where applicable, and documentation of agreed results.
Independent Inspection
Where required under the contract, independent inspection and quality verification can be arranged through an agreed inspection provider.
Discuss Your Coal Requirements
Contact our commercial team for current availability and supply options.
Supply & Logistic
From stockpile to vessel through South Kalimantan's established coal corridor.
How coal reaches your vessel
- Partner mineProduction and quality control at source
- StockpileBlending, stacking and pre-shipment sampling
- JettyHasnur / Talenta, South Kalimantan
- BargingTug and barge to the anchorage
- Taboneo AnchorageTransshipment by floating crane
- Mother vesselFOB or CFR to your port
Coal is stockpiled, blended where required and sampled before barge loading.
Barges are loaded by conveyor at the river jetty and towed to the anchorage.
Coal is transshipped from barge to the mother vessel by floating crane.
FOB (Free On Board)
We deliver the coal loaded on board the buyer's nominated vessel at Taboneo Anchorage. Freight and insurance from the loading port are arranged by the buyer.
CFR (Cost and Freight)
We arrange and pay for ocean freight to the named destination port. Risk passes to the buyer once the coal is loaded on board at the loading port.
Buyer Enquiry
Request a quotation. Our commercial team replies with availability and supply options.
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Office hours
Monday to Friday, 08:00–17:00 WITA (UTC+8). WhatsApp messages are answered outside office hours for urgent shipments.