Greenbox Group SG

Mon - Fri 10:00-18:00
Solid Fuel & Carbon Solutions

Coal Derivatives

Sourcing high-calorific coal and carbon derivatives for global power generation and metallurgical industries. We focus on consistent energy density and low impurity levels to optimize industrial thermal performance.

CORE PRODUCTS
  • Thermal Coal (Steam)
  • Metallurgical Coking Coal
  • Anthracite & Petcoke
KEY MARKETS
  • Steel & Iron Smelting
  • Cement Kiln Fuel
  • Thermal Power Stations
Coal Mining & Logistics
TRADING STANDARDS

NAR / GAR / ASTM Analysis

COAL GRADE CALORIFIC VALUE PRIMARY METRIC
Thermal Coal5500 - 6000 kcal/kgNAR (Net As Received)
Coking CoalHigh CSR / Low AshMetallurgical Grade
Anthracite> 7000 kcal/kgFixed Carbon 85%+
Lignite3000 - 4500 kcal/kgPower Generation
Petroleum Coke~7500 kcal/kgHigh Sulfur Fuel

Quality Assurance: All coal shipments undergo mandatory assay testing for Moisture, Ash, Volatile Matter, and Sulfur content. Verified by independent third-party laboratories (SGS/Bureau Veritas) at the port of origin.

Source Coal

Contact our Singapore trading desk for bulk vessel chartering, seasonal supply allocations, and technical assay reports.

GAR (Gross As Received) includes the total heat produced by combustion, including latent heat of water vapor. NAR (Net As Received) subtracts this latent heat, providing a more realistic energy value for actual industrial boiler efficiency.

CSR (Coke Strength after Reaction) measures the strength of the coke inside a blast furnace. High CSR is essential for maintaining furnace permeability and structural stability in large-scale steel production.

We strictly monitor moisture levels to prevent the risk of self-heating and spontaneous combustion. Our logistics team ensures vessels meet International Maritime Solid Bulk Cargoes (IMSBC) code standards for safe transit.

Yes. We offer various grades of low-sulfur coal (typically < 0.8%) to help industrial clients meet stringent environmental emission regulations and reduce the need for expensive desulfurization equipment.

Connect with our solid fuels desk to discuss assay specifications, bulk maritime logistics, and supply contract terms.

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