The Argus/Coalindo Indonesian Coal Index Report is a weekly price report delivering benchmark assessments for Indonesian thermal coal across five key grades. Jointly produced by Argus and PT Coalindo Energy on a 50/50 basis, the report publishes the Indonesian Coal Index (ICI) price assessments — the leading price reference used by Indonesian coal buyers, sellers and the Indonesian government for spot trades, tax calculations, financial analysis and production planning.
At a glance
- Weekly ICI prices for five Indonesian coal grades.
- Jointly assessed on a 50/50 Argus and Coalindo basis.
- Benchmark for trading, tax and investment decisions.
- Grade specifications fob Kalimantan per tonne.
- Monthly ICI averages and competitive trend data included.
- Referenced by the Indonesian government for price policy.
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Key features
Weekly benchmark prices
Five ICI prices, spanning grades from 3,400 to 6,500 kcal GAR, are published weekly, providing consistent and timely references for Indonesian thermal coal trading and contract discussions.
Dual-methodology assessment
Each ICI index is the equal average of independent Argus and PT Coalindo Energy assessments, delivering a balanced, market-reflective benchmark trusted across Asia-Pacific coal markets.
Coal grade specifications
ICI prices cover five standardised grades fob Kalimantan, with defined sulphur, ash, moisture and vessel size parameters, enabling direct comparability across Indonesian thermal coal grades.
Monthly ICI averages
Monthly average ICI prices are published for all five grades, supporting trend analysis, contract pricing and financial reporting across the Indonesian coal market.
Competitive trend charts
Reference graphs track ICI 2 differentials against Argus fob Richards Bay and fob Newcastle 5,500 kcal assessments, enabling users to monitor Indonesian coal spreads against key global benchmarks.
Argus Direct® access
The report and underlying data are available via the Argus Direct® platform, providing integrated access to price assessments, trend charts and downloadable publications.
How Argus assesses Indonesian coal markets
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Jointly constructed indexes
Each ICI index is the equal average of the Argus and PT Coalindo Energy assessments for the corresponding Indonesian coal grade. -
Grade-specific assessments
Five grades from 3,400 to 6,500 kcal GAR are assessed, each defined by sulphur, ash, moisture, energy value and vessel size specifications. -
Fob Indonesia pricing basis
Argus assesses each component on a fob Indonesia basis, following the Argus Coal Daily International methodology. -
Weekly publication schedule
Published weekly on Friday, moving to the prior working day if Friday is a public holiday in Indonesia or Singapore. -
Holiday assessment continuity
If PT Coalindo Energy does not assess during a holiday period, each ICI index equals the Argus component for that week.

Who uses this service
Traders
- Reference ICI prices to negotiate and settle physical spot trades with confidence.
- Benchmark Indonesian coal against South African and Australian grades using competitive trend charts.
- Identify market movements and trading opportunities using weekly price data.
Mining companies
- Use ICI prices to support investment plans and secure project financing.
- Benchmark production against independently assessed market rates for offtake negotiations.
- Rely on methodology-backed data to underpin financial reporting and strategic planning.
Heavy industry
- Track ICI prices to assess fuel cost exposure across power, cement and industrial operations.
- Use monthly averages to support budget planning and procurement decisions.
- Monitor grade-specific price movements to optimise coal sourcing strategies.
Frequently asked questions
Key price assessments
The ICI price assessments provide benchmarks for five Indonesian thermal coal grades fob Kalimantan, widely referenced across Asia-Pacific for spot trading, contract pricing, tax calculations and investment analysis.
