Both coking and thermal grades of bituminous coal fall under subheading 270112 — the HTS does not subdivide bituminous coal by end use at the HS6 level. The distinction matters commercially and for pricing, but not for tariff classification at this heading. Downstream products such as coke are classified separately in the chapter covering mineral fuels.

Yes. Briquettes, ovoids, and similar solid fuels manufactured from coal are classified under 270120 regardless of the coal type used as feedstock, because the agglomeration process creates a distinct product. Run-of-mine or screened coal that has not been agglomerated is classified under 270111, 270112, or 270119 depending on coal type.