Coal Market Update

Tracking coal price movements with precision and clarity
1. Market Sentiment & Price Environment

China’s thermal coal market strengthened modestly in Week 32 as extreme heatwaves pushed electricity demand sharply higher. Domestic coal burn increased across major utilities, stabilizing prices and improving import competitiveness for Indonesian cargoes.

“Bohai‑rim 5,500 kcal/kg rose from RMB826/t to RMB827/t… 4,500 kcal/kg increased from RMB643/t to RMB644/t.”

Indonesian benchmark pricing remained firm and stable:

“ICI1 at US$125.22/mt, ICI3 at US$82.04/mt, ICI4 at US$62.48/mt.”

Platts FOB Kalimantan assessments aligned with this stability:

“4,200 GAR at US$62.35/mt… 5,800 GAR at US$101.60/mt.”

Freight indicators also improved:

“BDI at 2,673, +41 points (+1.56%).”

Bunker prices remained supportive for voyage economics, with Singapore VLSFO at US$800–820/mt and MGO at US$1,224.50/mt.

2. Indonesian Export Performance

Indonesia delivered a strong operational performance during Week 32, maintaining high shipment continuity despite inland logistics challenges.

“353 shipments completed… approximately 20.4M MT exported… average port waiting 1–4 days.”

Key loading ports such as Muara Satui, IBT, Tarahan, TBCT, Asam‑Asam recorded smooth vessel turnaround. Localized congestion persisted at Apar Bay, Kaliorang, Marang Kayu, Muara Sangkulirang, where vessel stays extended to 7–8 days.

3. Inland Logistics & Barito River Conditions

A notable hydrological recovery occurred across the upper Barito basin:

“Muara Joloi increased by 2.8m… Bakanon by 1.8m… Puruk Cahu by 1.0m.”

This is the first meaningful improvement after weeks of declining water levels, offering cautious optimism for better barge draft conditions heading into early August.

Downstream sections remain shallow, requiring continued operational flexibility.

4. Marine Weather & Offshore Conditions

BMKG’s significant wave height forecast showed favorable conditions across Indonesia’s coal corridors:

  • Java Sea
  • Makassar Strait
  • Eastern Kalimantan
  • Southern coastal loading areas

Wave heights remained in the 0.5–1.5m range, supporting tug‑and‑barge operations and offshore transshipment.

5. Regional Demand Signals
China

Heatwave-driven electricity demand is lifting coal burn and stabilizing domestic prices. This improves the competitiveness of Indonesian mid‑ and low‑GAR cargoes.

India

Weak monsoon rainfall reduced hydropower output, increasing coal burn — but imports remain requirement‑based due to strong domestic production.

Global Supply

Glencore reported a 5% YoY decline in coal production for H1 2026, tightening seaborne supply and supporting Indonesian FOB values.

SMARTIN Week 32 Coal Market Update

CategoryWeek 32 HighlightsValidated DataCommercial Impact
Market PricesChina domestic prices stabilize; Indonesian FOB benchmarks firmBohai-rim 5,500 kcal: RMB827/t
ICI1: US$125.22/mt
Platts 4,200 GAR: US$62.35/mt
Improved competitiveness for Indonesian mid- & low-GAR cargoes
Freight & BunkersFreight sentiment improves; bunker prices stableBDI: 2,673 (+1.56%)
Singapore IFO380: US$586/mt
MGO: US$1,224.50/mt
Supportive voyage economics for regional coal trades
Export PerformanceStrong weekly shipment continuity353 shipments
20.4M MT exported
Port waiting: 1–4 days
Indonesia maintains robust export flow despite inland constraints
Inland LogisticsUpper Barito water levels show meaningful recoveryMuara Joloi: +2.8m
Bakanon: +1.8m
Puruk Cahu: +1.0m
Potential improvement in barge draft conditions for early August
Marine WeatherFavorable offshore conditions across major coal corridorsWave height: 0.5–1.5mSupports tug-barge operations and transshipment efficiency
Regional DemandChina & India maintain strong coal burnHeatwave-driven demand; weak monsoon hydro outputStable to firm import sentiment for Indonesian cargoes

Indonesia Coal Benchmark Comparison (31 Jul 2026)

Coal GradeGARICI (USD/t)McCloskey FOB (USD/t)HBA Aug-26 Period 1 (USD/t)
High CV6500 GAR125.34122.62 (M63)124.44 (6322 GAR)
Medium High CV5800 GAR101.66101.19 (M58)
Medium CV5000 GAR82.1781.79 (M50)
Low CV4200 GAR62.6462.16 (M42)65.48 (4100 GAR)
Very Low CV3400 GAR39.6739.39 (M34)45.27 (3400 GAR)

Sources: Indonesian Coal Index (ICI), McCloskey Indonesian FOB Markers, and HBA Indonesia Period 1 August 2026.

HBA Premium vs FOB Market

GradeHBA (USD/t)FOB Marker (USD/t)Premium / Discount
6322 GAR124.44122.62+1.82
4100-4200 GAR65.4862.16+3.32
3400 GAR45.2739.39+5.88

Historical HBA Benchmark (6322 GAR)

PeriodHBA (USD/t)Trend
May-26121.80
Jun-26120.50
Jul-26123.00
Aug-26 (P1)124.44

HBA 6322 GAR Trend

PeriodPriceVisual Trend
May-26121.80██████████
Jun-26120.50█████████
Jul-26123.00███████████
Aug-26 (P1)124.44████████████

Benchmark Analysis

ObservationComment
High CV CoalHBA remains broadly aligned with FOB market pricing (+USD 1.82/t).
Mid CV CoalMarket assessments for 5800 GAR exceed the government benchmark.
Low CV CoalHBA shows a notable premium over FOB values.
Very Low CV CoalLargest premium observed (+USD 5.88/t).
Overall ViewGovernment benchmark remains supportive for lower-calorific-value coal producers.

Coal Benchmark Scorecard

GradeStatus
6322 GAR🟢 Fair Value
5300-5800 GAR🟡 Market Above HBA
4100-4200 GAR🟢 HBA Supportive
3400 GAR🟢 HBA Strongly Supportive

Why is HBA higher than FOB market prices for low-CV coal?

Using August 2026 data:

GradeHBA (USD/t)McCloskey FOB (USD/t)Difference
6322 GAR124.44122.62+1.82
4100-4200 GAR65.4862.16+3.32
3400 GAR45.2739.39+5.88

The lower the calorific value, the larger the premium.

1. HBA is not a pure spot market index

McCloskey reflects actual FOB market assessments and trading activity at Indonesian ports.

HBA is a government benchmark calculated from several reference indices and policy formulas. It is designed to provide a stable pricing reference for royalties, domestic sales calculations, and certain export transactions, not necessarily to match daily spot trading levels.

As a result:

  • High-CV coal tends to track international markets closely.
  • Low-CV coal often receives support from the HBA formula.
2. Low-CV coal markets are less liquid

There are many buyers for:

  • 5800 GAR
  • 6000 GAR
  • 6300 GAR

But fewer international buyers for:

  • 3400 GAR
  • 3800 GAR
  • 4200 GAR

When demand weakens, low-rank coal prices can fall sharply.

The government benchmark smooths some of this volatility, which is why HBA frequently sits above spot assessments for lower grades.

3. Indonesia dominates low-rank coal exports

Indonesia is the world’s largest supplier of low-CV thermal coal.

For 3400-4200 GAR coal:

  • Indonesia is largely the price setter.
  • Domestic policy therefore has a stronger influence.

For higher-rank coal:

  • Indonesia competes more directly with Australia, Russia, South Africa, and others.

This tends to keep HBA closer to international FOB levels for high-CV coal.

4. Freight has a larger impact on low-CV coal

Low-CV coal contains less energy per tonne.

Example:

Coal GradeEnergy Delivered
6322 GARHigh
3400 GARMuch Lower

A buyer must import almost twice as much 3400 GAR coal to obtain the same energy as 6322 GAR coal.

When freight costs rise, buyers become less willing to pay for low-rank coal, pushing FOB prices down faster than benchmark prices.

5. Government support for smaller miners

Many Indonesian low-rank coal producers operate in:

  • South Kalimantan
  • East Kalimantan
  • Sumatra

Maintaining a benchmark above weak spot levels helps:

  • stabilize royalty calculations,
  • support producer margins,
  • reduce excessive price swings.

This effect is often most visible in the 3400-4200 GAR segment.

August 2026 Market Message

Based on SMARTIN News benchmark comparison:

  • High-CV coal (6322 GAR): HBA is essentially aligned with the market (+$1.82/t).
  • Medium-CV coal (5300-5800 GAR): Market remains stronger than the HBA benchmark.
  • Low-CV coal (4100-4200 GAR): HBA provides meaningful support (+$3.32/t).
  • Very low-CV coal (3400 GAR): HBA is significantly above market (+$5.88/t).

SMARTIN News commentary

The August 2026 HBA benchmark remains broadly aligned with spot market pricing for high-calorific-value coal. However, a notable premium persists in the low-rank coal segment, where HBA exceeds McCloskey FOB assessments by USD 3-6/t. This reflects weaker spot demand for lower-energy coal, reduced market liquidity, and the benchmark’s role in smoothing pricing volatility across Indonesia’s domestic coal industry.