Refining & Grade Specs

Metallurgical Coal Refining Methods and Grade Specifications

The transformation of Metallurgical Coal concentrate into refined products suitable for industrial use requires specialized metallurgical and chemical processes. Metallurgical Coal is refined into 3 primary commercial forms, each serving specific end-use sectors.

Refining Processes

The primary refining and processing pathways for Metallurgical Coal include:

1. Washing and beneficiation
2. Coking in coke ovens

Product Forms and Grade Specifications

Refined Metallurgical Coal is available in the following commercial forms, each with specific purity requirements:

Quality Standards and Benchmarks

International standards for Metallurgical Coal products are established by organizations such as ASTM International and various national standards bodies. Pricing is referenced against Platts/Argus (PLV HCC benchmark) assessments. These standards define minimum purity levels, acceptable impurity limits, and testing methodologies that facilitate international trade.

Refining Capacity and Geography

Global refining capacity for Metallurgical Coal is concentrated in a limited number of countries. Australia controls approximately 25% of primary production and plays a significant role in downstream refining. Efforts to diversify refining capacity are a key priority for governments seeking to reduce supply chain dependencies, particularly in the steelmaking (blast furnace coke) sector.