2711.14.00 - Ethylene, propylene, butylene and butadiene

HTS code 2711.14.00 encompasses a specific group of liquefied gaseous hydrocarbons, excluding natural gas, propane, and butanes, which are classified under separate sibling codes. This category specifically covers ethylene, propylene, butylene, and butadiene in their liquefied state. These are distinct chemical compounds, often serving as primary feedstocks for the petrochemical industry, unlike the broader categories of natural gas or simpler alkanes.

The distinction from sibling categories like 2711.11.00 (Natural gas), 2711.12.00 (Propane), and 2711.13.00 (Butanes) lies in the specific molecular structure and chemical properties of the hydrocarbons. While all are gaseous hydrocarbons, the unsaturated nature of ethylene, propylene, butylene, and butadiene, characterized by double or triple carbon-carbon bonds, sets them apart and dictates their distinct industrial applications and tariff treatments.

Within this classification, further subdivisions exist to differentiate between these specific unsaturated hydrocarbons. Subcategories such as 2711.14.00.10 (Ethylene), 2711.14.00.20 (Propylene), 2711.14.00.30 (Butylene), and 2711.14.00.40 (Butadiene) allow for precise identification based on the number of carbon atoms and the specific arrangement of double bonds. This granular classification is essential for accurate duty assessment and statistical reporting related to trade in these vital industrial chemicals.