2711.21.00.00 - Natural gas

This HTS classification, 2711.21.00.00, specifically covers natural gas in its gaseous state. Natural gas is a naturally occurring mixture of hydrocarbon gases, primarily methane, found in subterranean geological formations. Its classification here is distinguished by its composition, which is predominantly derived from the earth's natural deposits, as opposed to being produced through artificial processes.

Within the broader category of "Petroleum gases and other gaseous hydrocarbons," this heading differentiates itself from its sibling, 2711.29.00 ("Other"). While the sibling category would encompass other gaseous hydrocarbons that are not natural gas, such as synthetic or manufactured gases, 2711.21.00.00 is strictly limited to gas that is naturally occurring. The key differentiator lies in the origin and primary composition of the gas.

As this is a leaf node, there are no further subcategories under 2711.21.00.00. Therefore, all shipments of natural gas in its gaseous state, regardless of purity or specific applications (such as for heating, electricity generation, or as a fuel for vehicles), will fall under this single HTS code. Classification at this level relies on the fundamental identification of the product as natural gas as it is extracted and processed for transport and consumption.