Retort Carbon
High-purity carbon produced in retorts from coal or other sources, used in electrode manufacturing or chemical processes. Specifically named in HTS 2704.00.00 as retort carbon, typically in powdered or granular form. Differs from standard coke by production method.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If ultra-high purity carbon black
Carbon blacks of high purity shift to heading 2803 for elemental carbon forms.
If used as electrode coating additive
Processed into anti-knock preparations or fuel additives moves to heading 3811.
If formed into carbon electrodes
Finished electrodes classify under Chapter 85 electrical machinery.
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Import Tips & Compliance
• Include purity analysis (min 99% carbon) in commercial invoice; use inert atmosphere packaging to prevent oxidation; verify if it qualifies for special chemical industry exemptions
Related Products under HTS 2704.00.00
Metallurgical Coal Coke
High-quality coke produced by carbonizing bituminous coal in coke ovens, used primarily as a fuel and reducing agent in blast furnaces for iron production. It falls under HTS 2704.00.00 as coke of coal, typically agglomerated into uniform lumps. This product meets the chapter's definition for coal-derived coke used in industrial metallurgy.
Foundry Coke
Large-lump coke from low-ash bituminous coal, designed for cupola furnaces in foundries to melt metals like cast iron. Classified under HTS 2704.00.00 as coke of coal, agglomerated for high strength and low reactivity. Ideal for non-ferrous and ferrous foundry operations.
Lignite Coke
Coke obtained from carbonizing lignite (brown coal), often used in power generation or as a low-cost fuel reductant. It qualifies for HTS 2704.00.00 as coke or semicoke of lignite, whether agglomerated or fines. Lower calorific value than coal coke but abundant source.
Peat Coke (Semicoke)
Semicoke derived from low-temperature carbonization of peat, used in heating or gasification processes. Covered by HTS 2704.00.00 as coke or semicoke of peat, in agglomerated briquettes or loose form. Environmentally sourced from renewable peat bogs.
Agglomerated Coal Coke Briquettes
Coal coke formed into uniform briquettes for retail fuel sales, such as in BBQ or home heating. Falls under HTS 2704.00.00 as agglomerated coke of coal. Convenient packaging distinguishes from bulk industrial coke.
Petcoke (Petroleum Coke Fines)
Note: While primarily from petroleum, certain coal-blend petcoke fines resembling coal coke are classified here; used in cement kilns. HTS 2704.00.00 covers borderline coal-derived semicokes. High sulfur content requires careful handling.