Chapter 2603 — Customs Tariff Headings
Subheadings
Products classified under Tariff item 26.03
Antlerite Copper Sulfate Ore
Antlerite is a rare copper sulfate hydroxide mineral that forms concentrates with approximately 38% copper, ideal for solvent extraction. It is found in arid supergene zones and falls under this tariff item as a copper ore. The copper content is reported per statistical note 1.
2603.00.00Azurite-Malachite Mixed Copper Ore
Mixed azurite and malachite ores produce blended concentrates with 18-25% copper content, processed via acid leaching. These are genuine copper ores of the kind used in metallurgical extraction. They fall under this tariff item as copper ores, with the total copper content reported per statistical note 1.
2603.00.00Azurite Oxide Copper Ore
Azurite is a copper carbonate mineral (Cu3(CO3)2(OH)2) found in the oxidized zones of copper deposits. It is a genuine copper ore of the kind used in metallurgical extraction, typically processed via solvent extraction-electrowinning. It falls under this tariff item as a copper ore, with the metal content reported per statistical note 1.
2603.00.00Bornite Copper Concentrate
Bornite, also known as peacock ore, is a copper iron sulfide mineral (Cu5FeS4) that yields copper concentrates after flotation. It is a primary copper ore used as feedstock for copper smelters. It is classified under this tariff item as a copper concentrate, with the copper content reported per statistical note 1.
2603.00.00Chalcopyrite Copper Ore
Chalcopyrite is the most common copper sulfide mineral (CuFeS2), typically containing 20-30% copper. It is mined and processed into concentrates for copper extraction in smelters. It falls under this tariff item as a copper ore, with the copper content reported per statistical note 1.
2603.00.00Chalcopyrite-Sphalerite Mixed Concentrate
Mixed mineral concentrate of chalcopyrite (copper iron sulfide) and sphalerite (zinc sulfide) from bulk flotation. Classified under tariff item 2603.00.00 as a copper ore concentrate, with zinc content reported per assay.
2603.00.00Chrysocolla Copper Ore
Chrysocolla is a hydrated copper silicate ore (Cu2H2Si2O5(OH)4) found in oxidized zones of copper deposits. It is processed into low-grade concentrates for leaching operations and contributes to copper production through hydrometallurgical methods. It is classified under this tariff item as a copper ore.
2603.00.00Copper-Gold Ore Concentrate with 5g/t Gold Content
Copper ore concentrate extracted from porphyry deposits, containing approximately 5 grams of gold per metric ton alongside primary copper sulfides. This product falls under tariff item 2603.00.00 as a copper ore or concentrate, with the gold content being incidental to the copper metallurgical extraction.
2603.00.00Copper-Lead Ore Concentrate (High Lead Assay)
A copper ore concentrate with significant lead content, typically extracted from polymetallic deposits where galena is intermingled with copper sulfides. It falls under tariff item 2603.00.00 as a copper ore concentrate, with the lead content reported by assay for statistical purposes.
2603.00.00Copper-Silver Ore Concentrate 10% Ag
Copper ore concentrate containing 10% silver by weight, primarily extracted from polymetallic deposits. Classified under tariff item 2603.00.00 as a copper concentrate, with silver content reported as pure metal content.
2603.00.00Covellite Copper Ore Fines
Covellite fines are high-grade copper sulfide fines with a theoretical copper content of 66% after concentration. They are classified under this tariff item as copper concentrates, with the copper content reported per statistical note 1. These fines are used in direct smelting operations.
2603.00.00Covellite Copper Sulfide Concentrate
Covellite is an indigo-blue copper sulfide mineral (CuS) that produces high-purity concentrates (30-40% Cu) via selective flotation. It is ideal for direct smelting and is classified under this tariff item as a copper concentrate. The copper content is reported per statistical note 1.
2603.00.00Cuprite Copper Ore Concentrate
Cuprite is a red copper oxide mineral (Cu2O) that is crushed and concentrated for heap leaching operations, with typical copper content of 40-80%. It is common in porphyry deposits and falls under this tariff item as a copper ore. The copper content is reported per statistical note 1.
2603.00.00Digénite Copper Sulfide Concentrate
Digenite is a secondary copper sulfide mineral (Cu9S5) that forms concentrates through supergene enrichment, yielding 45-55% copper for smelter feed. It is separated from chalcopyrite by flotation and is classified under this tariff item as a copper concentrate.
2603.00.00Diurleite High-Grade Copper Concentrate
Djurleite is a copper-rich sulfide mineral that produces premium concentrates exceeding 50% copper content. It enhances smelter efficiency due to low impurities and falls under this tariff item as a copper concentrate. The copper content is reported per statistical note 1.
2603.00.00Enargite Copper-Arsenic Ore
Enargite is an arsenic-bearing copper sulfide mineral (Cu3AsS4) that produces concentrates treated via autoclaving or roasting for copper and byproduct arsenic recovery. Despite the arsenic content, it is classified under this tariff item as a copper ore, as it is primarily used for copper extraction.
2603.00.00Flotation Tailings Copper Concentrate 7g/t Au
Recovered copper concentrate from tailings reprocessing with 7g/t gold content. This product is classified under tariff item 2603.00.00 as a copper concentrate, provided the tailings reprocessing does not involve processes outside normal metallurgical industry practices.
2603.00.00Galena-Rich Copper Ore Fines
Fines from copper ore processing with high galena (lead sulfide) content, derived from sedimentary copper-lead deposits. Classified under tariff item 2603.00.00 as copper ore fines, with lead content reported by assay quantity.
2603.00.00Heap Leach Copper Concentrate 8g/t Gold Content
Concentrate from heap leaching operations with 8g/t gold recovered in copper circuit. This product falls under tariff item 2603.00.00 as a copper concentrate, assuming the heap leaching process is a normal metallurgical industry practice for copper extraction.
2603.00.00High-Grade Copper Concentrate 15% Ag
Flotation concentrate from copper mines with 15% silver, optimized for joint metal extraction. Classified under tariff item 2603.00.00 as a copper concentrate, with silver assay reported as pure metal content.
2603.00.00High-Grade Copper Concentrate with 10g/t Gold
Flotation concentrate from copper-gold skarn deposits featuring 10 grams per ton gold content integrated with chalcopyrite. This product is classified under tariff item 2603.00.00 as a copper concentrate, with the gold content being a secondary component.
2603.00.00High-Grade Lead-Bearing Copper Matte
Intermediate copper matte from smelting with substantial lead impurities, treated as ore concentrate equivalent. However, Chapter 26 note 1(g) excludes copper mattes produced by smelting from this chapter, placing them in Section XV.
2603.00.00High-Zinc Copper Sulfide Concentrate
Flotation concentrate from copper sulfide ores with elevated zinc sulfide (sphalerite) levels, common in porphyry copper deposits. Falls under tariff item 2603.00.00 as a copper concentrate, with zinc content captured statistically.
2603.00.00Malachite Copper Concentrate
Malachite is a vibrant green copper carbonate mineral (Cu2(CO3)(OH)2) that is concentrated via crushing and flotation for acid leaching in copper production. It is common in African and other deposits and falls under this tariff item as a copper ore. The copper content is reported per statistical note 1.
2603.00.00Mexican Copper Ore 8% Silver Content
Copper ore sourced from Mexican porphyry deposits containing 8% silver, exported as concentrate. Classified under tariff item 2603.00.00 as a copper concentrate, with silver content reported per assay.
2603.00.00Polymetallic Copper Concentrate (Lead Subproduct)
Flotation concentrate from copper mines yielding byproduct lead, common in deposits like those in Peru or Australia. Classified under tariff item 2603.00.00 as a copper ore concentrate, with lead content reported per assay.
2603.00.00Polymetallic Copper Ore with 5% Silver
Raw copper ore from silver-bearing deposits with 5% silver content, used in smelting operations. Classified under tariff item 2603.00.00 as copper ore, with silver content reported per statistical notes.
2603.00.00Polymetallic Copper-Zinc Ore Fines
Fine particles of copper ore with substantial zinc impurities, often resulting from crushing operations in polymetallic mines. Classified under tariff item 2603.00.00 as copper ore fines, with zinc content reported statistically.
2603.00.00Porphyry Copper Ore Fines with 2g/t Gold Content
Fine-particle copper ore from porphyry mines with 2 grams per ton gold, crushed for concentrate production. This product falls under tariff item 2603.00.00 as a copper ore, provided the crushing process is a normal metallurgical industry practice.
2603.00.00Secondary Copper-Lead Ore Blend
Blended ore from secondary sources like mine tailings with elevated lead from galena, processed for re-extraction. Classified under tariff item 2603.00.00 as copper ore, provided it has not been processed beyond normal metallurgical steps.
2603.00.00Secondary Copper Ore with Zinc Impurities
Recovered copper ore from tailings or waste dumps containing residual zinc, reprocessed for economic recovery. Classified under tariff item 2603.00.00 if it remains a natural ore, but may fall under heading 26.20 if considered a residue.
2603.00.00Secondary Copper-Silver Flotation Tailings
Recovered tailings from secondary copper processing with reportable silver content. Classified under tariff item 2603.00.00 as copper concentrates if they are natural ores, but may be residues under heading 26.20.
2603.00.00Skarn Deposit Copper-Gold Blend Ore 15g/t Gold
Blended ore from skarn deposits with elevated 15g/t gold in copper matrix. This product is classified under tariff item 2603.00.00 as a copper ore, with the gold content being a co-product rather than the primary metal.
2603.00.00Tennantite Copper Ore Concentrate
Tennantite is a copper arsenic sulfosalt mineral that yields concentrates with 40-50% copper after selective flotation. It is prevalent in porphyry copper deposits and falls under this tariff item as a copper concentrate. The copper content is reported per statistical note 1.
2603.00.00Tenorite Copper Oxide Ore
Tenorite is a black copper oxide mineral (CuO) from supergene enrichment, processed into concentrates for leaching with 40-60% copper grades. It is used in SX-EW copper production and falls under this tariff item as a copper ore. The copper content is reported per statistical note 1.
2603.00.00Volcanic Copper Ore with Trace 3g/t Gold
Ore from volcanic-hosted massive sulfide deposits containing 3g/t gold with copper sulfides. This product falls under tariff item 2603.00.00 as a copper ore, with the gold content being a trace element.
2603.00.00Zinc-Bearing Copper Ore Concentrate
Copper ore concentrate containing significant zinc content, typically extracted from polymetallic deposits where sphalerite is intermingled with copper sulfides. Classified under tariff item 2603.00.00 as a copper concentrate, with zinc reported per assay.