Variant of North American Industry Classification System (NAICS) 2022 Version 1.0 for Energy sector

• Non E - Industries not included in the energy sector
• 31-33e - Manufacturing, non E
• 325 - Chemical manufacturing
• 3251 - Basic chemical manufacturing

32511 - Petrochemical manufacturing

This industry comprises establishments primarily engaged in converting feedstocks derived from petroleum, or from petroleum and natural gas liquids, into petrochemicals. Some important processes used in petrochemical manufacturing include steam cracking and steam reforming. For the purpose of defining this industry, petrochemicals consist of acyclic (aliphatic) hydrocarbons and cyclic aromatic hydrocarbons.