Platts proposes to refine thermal coal FOB Kalimantan ash, sulfur differentials

Platts, part of S&P Global Energy, proposes to refine the Thermal Coal FOB Kalimantan Ash Differential 1% (AVTCI00) and the FOB Kalimantan Sulfur Differential 0.1% (AVTCH00) assessments, effective Dec. 7, 2026.

This proposal responds to market feedback for greater transparency in the pricing of Indonesian thermal coal.

Preliminary market feedback indicates that coal grades with a heat value of 5,000 kcal/kg GAR or below are considered to fall within the same band for ash and sulfur differential adjustments.

As such, Platts proposes updating its FOB Kalimantan ash and sulfur differentials to apply to coal grades with a heat value of 5,000 kcal/kg GAR or below.

Platts also proposes to rename the assessments in line with the change, as below:

Assessment	Symbol
Thermal Coal FOB Kalimantan Low-to-Mid-CV Ash Differential	AVTCI00
Thermal Coal FOB Kalimantan Low-to-Mid-CV Ash Differential 1% $/mt Qavg	AVTCI05
Thermal Coal FOB Kalimantan Low-to-Mid-CV Ash Differential 1% $/mt Mavg	AVTCI03
Thermal Coal FOB Kalimantan Low-to-Mid-CV Ash Differential 1% $/mt Wavg	AVTCI04
Thermal Coal FOB Kalimantan Low-to-Mid-CV Sulfur Differential	AVTCH00
Thermal Coal FOB Kalimantan Low-to-Mid-CV Sulfur Differential 0.1% $/mt Qavg	AVTCH05
Thermal Coal FOB Kalimantan Low-to-Mid-CV Sulfur Differential 0.1% $/mt Mavg	AVTCH03
Thermal Coal FOB Kalimantan Low-to-Mid-CV Sulfur Differential 0.1% $/mt Wavg	AVTCH04

These assessments are published in Platts Coal Trader International and on the fixed page GCI0410.

Please send all comments, feedback and questions to coal@spglobal.com and pricegroup@spglobal.com by Nov. 2.

For written comments, please provide a clear indication if they are not intended for publication by Platts for public viewing. Platts will consider all comments received and will make those not marked as confidential available upon request.