Chapter 2713 — Customs Tariff Headings

Anode Grade Green Coke

Anode grade green petroleum coke is a low-sulfur, uncalcined coke produced from delayed coking of heavy petroleum residues. Its needle-like structure and low metal content make it specifically suited for calcination into carbon anodes used in aluminum electrolysis. As it has not undergone calcination, it falls under tariff item 2713.11.00 for not calcined petroleum coke.

Calcined Petroleum Coke Feedstock

This not calcined petroleum coke is produced as feedstock for subsequent calcination into graphite and carbon products. It has a sponge-like structure typical of delayed coker output and has not been subjected to heat treatment. Since it is uncalcined, it is correctly classified under tariff item 2713.11.00.

Fuel Grade Petroleum Coke

Fuel grade petroleum coke is a high-sulfur, uncalcined coke used as an industrial fuel in power plants and cement kilns. It is produced from delayed coking units and has not been heat-treated, maintaining its raw state. As it is not calcined, it falls under tariff item 2713.11.00 for uncalcined petroleum coke.

Green Petroleum Coke

Green petroleum coke is the raw, uncalcined residue from thermal cracking of heavy petroleum fractions during oil refining. It has high carbon content and is used as a fuel or as raw material for aluminum and steel industries. Since it has not been calcined, it is classified under tariff item 2713.11.00.

High Sulfur Delayed Coker Coke

High sulfur delayed coker coke is a green, uncalcined petroleum coke produced from delayed coking of vacuum residue. It is used mainly for energy recovery in industrial boilers due to its high sulfur content and low volatile matter. As it is not calcined, it falls under tariff item 2713.11.00.

Sponge Coke Petroleum Residue

Sponge coke is a not calcined petroleum coke with a porous, sponge-like appearance, produced from fluid or delayed coking processes. It is used as a carburizer in steelmaking or as a fuel. Since it has not been calcined, it is classified under tariff item 2713.11.00.

Calcined Delayed Coke

Calcined delayed coke is a high-carbon product obtained by subjecting green delayed coke to thermal treatment at temperatures above 1,200°C, removing volatile matter and moisture. It is used primarily in the aluminum and steel industries as a carbon source. This product falls under tariff item 2713.12.00 as calcined petroleum coke, a residue of petroleum oils.

Calcined Petroleum Coke

Calcined petroleum coke is produced by heating green petroleum coke to over 1,200°C, driving off volatile matter and increasing carbon purity. It is a key raw material for anodes in aluminum smelting and for other metallurgical applications. This product is classified under tariff item 2713.12.00 as calcined petroleum coke, a residue of petroleum refining.

Calcined Petroleum Needle Coke

Calcined petroleum needle coke is a premium grade of calcined coke with a distinctive needle-like crystalline structure, produced from specific feedstocks and calcination processes. It is primarily used in the manufacture of graphite electrodes for electric arc furnaces in steelmaking. Despite its specialized morphology, it remains a calcined petroleum coke residue and is classified under tariff item 2713.12.00.

Fluid Calcined Petroleum Coke

Fluid calcined petroleum coke is produced from the fluid coking process, resulting in a sponge-like structure with high porosity, suitable for metallurgical applications. It undergoes calcination to remove volatile matter and enhance carbon content. This product is classified under tariff item 2713.12.00 as calcined petroleum coke, a residue of petroleum oils.

Fuel-Grade Calcined Petroleum Coke

Fuel-grade calcined petroleum coke is a thermally treated petroleum coke with higher sulfur content, used as a fuel in power generation and cement kilns. Although its application is for fuel, it is still a calcined petroleum coke residue from petroleum refining. It is classified under tariff item 2713.12.00 as calcined petroleum coke.

Green Petroleum Coke Calcined Anode Grade

Green petroleum coke calcined anode grade is a high-quality calcined coke specifically processed for use in aluminum smelter anodes, with low ash and metal content. It is produced by calcining green coke to achieve high carbon purity and electrical conductivity. This product is classified under tariff item 2713.12.00 as calcined petroleum coke.

Isotropic Calcined Petroleum Coke

Isotropic calcined petroleum coke is a specialty calcined coke with uniform properties in all directions, used in applications like nuclear graphite and specialty carbon products. It is produced through controlled calcination of selected feedstocks. Despite its specialized nature, it is a calcined petroleum coke residue and is classified under tariff item 2713.12.00.

Asphalt Concrete Mix Bitumen

Performance-grade petroleum bitumen (PG 64-22) derived from vacuum distillation of crude oil, used as a binder in hot-mix asphalt concrete for highway construction. It meets Superpave specifications for rutting and cracking resistance, qualifying as a residue of petroleum oils under tariff item 2713.20.00.

Asphalt Road Surfacing Bitumen

Semi-solid petroleum bitumen derived from crude oil distillation residues, specifically used for road paving and surfacing applications. It meets the criteria for residues from petroleum oils and is classified under tariff item 2713.20.00 as petroleum bitumen.

Bitumen Emulsion Base Petroleum Residue

Petroleum bitumen used as a base for cationic or anionic emulsions in road maintenance, derived from vacuum distillation bottoms of crude oil. It is classified under tariff item 2713.20.00 before emulsification, as it is a petroleum residue in its primary form.

Cutback Bitumen MC-30 Base

Medium-curing cutback bitumen base (MC-30) petroleum residue before solvent addition, used in prime coats and tack coats for roadworks. It is classified under tariff item 2713.20.00 as petroleum bitumen, provided it is in its base form without solvents.

Industrial Petroleum Bitumen 60/70 Penetration

Standard 60/70 penetration grade petroleum bitumen used in industrial sealing and waterproofing, derived from petroleum oil residues. Its needle penetration value between 60-70 at 25°C defines its consistency, qualifying it under tariff item 2713.20.00.

Pipeline Coating Petroleum Bitumen

Heavy-grade petroleum bitumen applied as anti-corrosion coating for oil and gas pipelines, derived from petroleum residues. It provides high electrical resistance and adhesion in buried applications, qualifying under tariff item 2713.20.00 as petroleum bitumen.

Polymer Modified Bitumen PMB 76/10

SBS polymer-modified petroleum bitumen PMB 76/10 for high-performance pavements, classified under tariff item 2713.20.00 in its base form before modification. It enhances elasticity and fatigue resistance in road construction.

Roofing Bitumen Shingles Grade

High-grade petroleum bitumen formulated for manufacturing asphalt roofing shingles, classified under tariff item 2713.20.00 as a residue of petroleum oils. It provides waterproofing and durability in built-up roofing systems.

Waterproofing Membrane Bitumen

Oxidized petroleum bitumen for torch-applied waterproofing membranes in commercial roofing, classified under tariff item 2713.20.00 as a petroleum residue. Its high softening point ensures thermal stability in roofing applications.

Alkylation Unit Spent Acid Sludge

Alkylation unit spent acid sludge is a hydrocarbon-rich residue recovered from the bottoms of acid settlers in HF or sulfuric acid alkylation units. The organic layer, separated from the spent acid, consists of petroleum oil residues and is not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils, suitable for fuel recovery.

API Separator Sludge Oil

API separator sludge oil is a hydrocarbon sludge recovered from oil-water separators in refinery wastewater treatment systems. It consists of petroleum oil residues from bituminous minerals, often mixed with water and solids. This material is classified under tariff item 2713.90.00 as other residues of petroleum oils, typically reprocessed for fuel or asphalt blending.

Asphalt Flux Residue

Asphalt flux residue is the heavy unrefined bottoms from vacuum distillation towers, used as feedstock for asphalt fluxing. Derived from petroleum oils or bituminous minerals, it is not a separate chemically defined compound. It falls under tariff item 2713.90.00 as other residues of petroleum oils, before any fluxing or blending.

Clarified Sludge Oil from Tank Bottoms

Clarified sludge oil from tank bottoms is the heavy sediment accumulated in petroleum storage tanks, clarified to recover oil residues. It contains petroleum oils from bituminous minerals and is not fit for primary use without further processing. This material is classified under tariff item 2713.90.00 as other residues of petroleum oils.

Coker Quench Oil Residue

Coker quench oil residue is a heavy hydrocarbon residue from delayed coker quench towers, derived from petroleum vacuum resid. It contains pitch-like materials from bituminous oil processing and is not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils.

Crude Oil Emulsion Breaker Residue

Crude oil emulsion breaker residue is the bottoms from chemical demulsification of crude oil/water emulsions, containing asphaltenes and resins. It is a residue of petroleum oil processing, not a separate chemically defined compound. This material falls under tariff item 2713.90.00 as other residues of petroleum oils, used in drilling mud formulations.

Diesel Hydrotreater Purge Residue

Diesel hydrotreater purge residue is a heavy polynuclear aromatic stream purged from diesel hydrotreating units to maintain product specifications. It is a residue of petroleum oil processing from bituminous materials, not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils, valuable as asphalt modifier feedstock.

FCC Slurry Oil

FCC slurry oil is a heavy catalytically cracked slurry oil from fluid catalytic cracker bottoms, carrying catalyst fines. It is a residue of petroleum oil processing from bituminous materials, not a separate chemically defined compound. This material falls under tariff item 2713.90.00 as other residues of petroleum oils, used in asphalt and carbon black production.

Heavy Fuel Oil Tank Residue

Heavy fuel oil tank residue is the residue remaining in tanks after heavy fuel oil drainage, consisting of petroleum oil bottoms from bituminous sources. It is too viscous for standard fuel use and is not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils.

Lube Oil Filter Cake Residue

Lube oil filter cake residue is a carbonaceous residue from filtering used lubricating oils during re-refining. It contains spent additives and heavy hydrocarbons, and is a residue of petroleum oil processing. This material falls under tariff item 2713.90.00 as other residues of petroleum oils.

Petroleum Desalter Brine Sludge

Petroleum desalter brine sludge is an emulsion-breaking sludge from crude oil desalters, containing petroleum oil residues emulsified with brine. It is a residue of petroleum oil processing from bituminous minerals, not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils, recovered for oil reclamation.

Petroleum Refinery Slop Oil

Petroleum refinery slop oil is a residual petroleum product recovered from refinery wastewater treatment processes, containing hydrocarbons from petroleum oils. It is not fit for primary use without further processing and is not a separate chemically defined compound. This material falls under tariff item 2713.90.00 as other residues of petroleum oils.

Sour Water Stripper Bottoms

Sour water stripper bottoms is a heavy tar-like residue from stripping hydrocarbon contaminants from refinery sour water. It contains petroleum oil residues with phenols and BTEX, and is not a separate chemically defined compound. It is classified under tariff item 2713.90.00 as other residues of petroleum oils, a source for specialty chemical recovery.

Vacuum Residuum from Crude Distillation

Vacuum residuum from crude distillation is the heaviest bottoms product from vacuum crude distillation units, a residue of petroleum oils. It is not a separate chemically defined compound and is used as feedstock for coker units or heavy fuel production. This material falls under tariff item 2713.90.00 as other residues of petroleum oils.