Key Takeaways
- • Indonesia set its benchmark coal price for 5,300 kcal grade at $67.20 per metric ton for the second half of August, representing a marginal 0.19% decline from the first half of August ($67.33/ton).
- • The 4,100 kcal grade benchmark fell more significantly to $43.70 per metric ton, a 4.5% decrease from the previous half-month price of $45.74/ton.
- • Indonesia's highest-grade coal at 6,322 kcal/kg declined to $100.69 per metric ton from $102.22, while the lowest-grade 3,400 kcal/kg benchmark dropped to $33.48 from $34.86.
- • The Indonesian Energy Ministry sets benchmark coal prices bi-monthly and uses them as the floor price for coal transactions, establishing critical price floors for the regional and global coal market.
- • Lower-grade coal experienced more pronounced price declines in the second half of August compared to premium-grade coal, reflecting broader market softness across lower-calorific-value commodities.
Summary
Indonesia's Energy Ministry announced its benchmark coal prices for the second half of August 2026, with the commonly traded 5,300 kcal grade remaining relatively stable at $67.20 per metric ton. This represents a negligible adjustment from the first half of August, when the same grade was priced at $67.33/ton—a decline of just $0.13 per ton. The stability in premium-grade coal contrasts with greater downward pressure on lower-calorific-value benchmarks, where the 4,100 kcal grade fell 4.5% to $43.70/ton from $45.74/ton in the previous period.
Across the full spectrum of Indonesia's benchmark grades, pricing momentum tilted downward, though the magnitude varied by grade. The highest-quality coal at 6,322 kcal/kg declined 1.5% to $100.69/ton from $102.22, while the lowest-grade 3,400 kcal/kg coal fell to $33.48 from $34.86, representing a 4% quarter-month decline. This pattern suggests softening demand for lower-grade thermal coal products, which are typically used in less efficient power generation and industrial applications.
Indonesia's bi-monthly benchmark price-setting mechanism serves as a critical reference point for regional coal markets. These government-established prices function as floor prices for physical coal transactions, providing price transparency and establishing minimum valuation thresholds for one of the world's largest coal exporters. The modest price movements in August 2026 reflect broader stability in thermal coal markets, with premium grades holding relatively firm while lower-quality benchmarks experience more substantial pressure from softer demand dynamics.
Across the full spectrum of Indonesia's benchmark grades, pricing momentum tilted downward, though the magnitude varied by grade. The highest-quality coal at 6,322 kcal/kg declined 1.5% to $100.69/ton from $102.22, while the lowest-grade 3,400 kcal/kg coal fell to $33.48 from $34.86, representing a 4% quarter-month decline. This pattern suggests softening demand for lower-grade thermal coal products, which are typically used in less efficient power generation and industrial applications.
Indonesia's bi-monthly benchmark price-setting mechanism serves as a critical reference point for regional coal markets. These government-established prices function as floor prices for physical coal transactions, providing price transparency and establishing minimum valuation thresholds for one of the world's largest coal exporters. The modest price movements in August 2026 reflect broader stability in thermal coal markets, with premium grades holding relatively firm while lower-quality benchmarks experience more substantial pressure from softer demand dynamics.
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