Chapter 2705 — Customs Tariff Headings
Products classified under Tariff item 27.05
Blast Furnace Gas
Blast furnace gas is a byproduct of iron smelting, consisting mainly of nitrogen, carbon monoxide, carbon dioxide, and hydrogen. It is used as a fuel within steel mills and qualifies under this tariff item as a similar gas to coal gas, producer gas, and water gas, excluding petroleum gases and other gaseous hydrocarbons.
2705.00.00Blue Gas (Water Gas Variant)
Blue gas is a high-purity water gas variant produced by steam-carbon reactions, with minimal carbon dioxide content, used in industrial applications. It falls under this tariff item as water gas, which is explicitly listed and distinct from petroleum gases and other gaseous hydrocarbons.
2705.00.00Coal Gas
Coal gas is a flammable gaseous fuel produced by the destructive distillation of coal, primarily containing hydrogen, methane, and carbon monoxide. It is explicitly listed under this tariff item as coal gas, making it eligible for classification here.
2705.00.00Producer Gas
Producer gas is generated by the partial combustion of coal or biomass with air, containing carbon monoxide, hydrogen, and nitrogen, used mainly in industrial heating. It is classified under this tariff item as a similar gas to coal gas, water gas, and producer gas, excluding petroleum gases.
2705.00.00Semi-Water Gas
Semi-water gas is a mixture produced by passing air and steam over hot coke, balancing producer and water gas properties for fuel use. It fits under this tariff item as a similar gas from coal processes, not a petroleum gas or other gaseous hydrocarbon.
2705.00.00Town Gas
Town gas is a historical coal-derived fuel gas mixture of hydrogen, methane, and carbon monoxide, once distributed for lighting and heating. It is included under this tariff item as coal gas or similar gas, differentiated from modern natural gas and petroleum gases.
2705.00.00Water Gas
Water gas is produced by passing steam over incandescent coke or coal, yielding a mixture of hydrogen and carbon monoxide used as an industrial fuel. It is classified under this tariff item as water gas, explicitly listed and excluding petroleum gases.