Quality Specs and Benchmark Spread Dynamics

Calorific value, ash, sulfur, and moisture differences drive benchmark spreads and delivered burn economics across regions.

Core Points

Higher calorific value can offset higher FOB prices via freight-adjusted energy value.
Quality penalties matter most when compliance constraints tighten.
Specification mismatch can reduce liquidity in stressed markets.

Case: High-CV Premium Expansion

Power buyers bid up higher calorific grades when freight rose, prioritizing energy density over nominal FOB price.

Case: Sulfur Penalty Widening

A tighter emissions environment widened sulfur penalties, shifting preference toward cleaner imported grades.

Last reviewed: 2026-03-21