Thermal coal (steam coal) is used primarily for electricity generation, while metallurgical coal (coking coal) is a key input for steel production. The distinction matters for customs classification, pricing benchmarks, and end-use documentation, as buyers and regulators may require specification of calorific value, ash content, and sulfur levels.

Coal itself has not been a primary target of US antidumping or countervailing duty orders, but export competitiveness can be affected by foreign import restrictions, carbon-related border measures in destination markets, and domestic energy regulations. Trade professionals should monitor destination-country policies when planning export shipments.