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HSChapter 27
U.S. imports of coke and semicoke of coal, lignite, or peat; retort carbon (HS 270400) totaled $6.3M in April 2026, traded with 10 countries.
Coke and Semicoke of Coal, Lignite, or Peat; Retort Carbon imports of $6.3M in April 2026 ran 14% above the year-to-date monthly average of $5.5M.
Last updated: April 2026 dataCoke produced by high-temperature carbonization of coal is a critical reductant and structural support material in blast furnace ironmaking, making this heading strategically important to the US steel industry. The US schedule subdivides the heading into fuel-grade coke (2704000010), large-lump blast furnace coke above 100mm retained on a 100mm sieve (2704000011), non-fuel industrial coke (2704000020), residual coal coke (2704000025), and coke or semicoke derived from lignite or peat plus retort carbon (2704000050). Canada leads import supply, with Czech Republic, Italy, South Africa, and Colombia also contributing — a geographically diverse supplier base that reflects the global nature of metallurgical coke procurement. Buyers should note that the size-grading distinction in line 2704000011 is a physical specification requirement, not merely a commercial grade, and must be documented to support classification.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Line 2704000011 requires that the coke have a diameter greater than 100mm and that 50% or more be retained on a 100mm sieve — a measurable physical specification. Importers should retain sieve analysis certificates from the producer or an independent laboratory as supporting documentation, since CBP may request evidence that the size threshold is met.
Retort carbon is a dense carbonaceous deposit that forms on the walls of gas retorts during coal distillation, distinct from the porous, formed coke produced by coking ovens. Both are captured under heading 2704, with retort carbon grouped alongside lignite and peat coke in line 2704000050. The key classification question is whether the material is a formed coke product or a retort deposit, which affects which 10-digit line applies.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CANADA | $35K | $17.4M | +$17.3M |
| MEXICO | -- | $4.6M | +$4.6M |
| UNITED KINGDOM | -- | $4.1M | +$4.1M |
| GABON | -- | $4.0M | +$4.0M |
| COLOMBIA | $3.4M | -- | -$3.4M |
Monthly import values over time
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HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % |
|---|---|---|---|
| 2704000025 | COKE AND SEMICOKE OF COAL, NESOI | $6.3M | -- |
| 2704000050 | COKE/SEMICOKE OF LIGNITE OR PEAT; RETORT CARBON | $88K | -- |
| 2704000011 | COKE GT100MM DIAMTR & 50% RETAIND ON 100MM SIEVE | $0 | -- |
COKE AND SEMICOKE OF COAL, NESOI
COKE/SEMICOKE OF LIGNITE OR PEAT; RETORT CARBON
COKE GT100MM DIAMTR & 50% RETAIND ON 100MM SIEVE
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 2704000020 | COKE AND SEMICOKE OF COAL NOT FOR USE AS FUEL | $16.7M |
| 2704000010 | COKE AND SEMICOKE OF COAL FOR USE AS FUEL | $8.7M |
| 2704000050 | COKE/SEMICOKE OF LIGNITE OR PEAT; RETORT CARBON | $4.7M |
COKE AND SEMICOKE OF COAL NOT FOR USE AS FUEL
40.3K t
COKE AND SEMICOKE OF COAL FOR USE AS FUEL
26.4K t
COKE/SEMICOKE OF LIGNITE OR PEAT; RETORT CARBON
42.0K t
| Port | Imports | Exports | Balance |
|---|---|---|---|
| NEW ORLEANS, LA | -- | $8.1M | +$8.1M |
| BUFFALO-NIAGARA FALLS, NY | -- | $7.4M | +$7.4M |
| MOBILE, AL | $6.2M | -- | -$6.2M |