Product classification
HS code for Copper master alloys: 7405.00
Copper, master alloys of copper.
Classification of copper master alloys under HS 7405.00
Copper master alloys are classified under HS code 7405.00. In the nomenclature of the Harmonized System, master alloys are defined as alloys containing copper with other elements in any proportion, which are not usefully malleable and are generally used as additives in the manufacture of other alloys or as de-oxidants, de-sulphurants, or for similar metallurgical purposes. Unlike standard copper alloys intended for rolling, forging, or machining into finished goods, master alloys are intermediate products. They are typically brittle and are produced in shapes such as ingots, blocks, or slabs to be melted down. Heading 7405 is a single-level heading that specifically captures these compositions, provided they do not meet the definition of copper phosphide (phosphor copper) containing more than 15% by weight of phosphorus, which would move the product into Chapter 28.
- Covers
- Copper-manganese master alloys
- Copper-silicon master alloys
- Copper-boron master alloys
- Copper-iron master alloys
- Phosphor copper containing 15% or less phosphorus
- Also under 7405.00
- KME Group master alloys
- Wieland Werke master alloys
- Aurubis master alloys
- Mitsubishi Materials master alloys
Codes often confused with 7405.00
Common mistake. The most frequent misclassification occurs with HS code 7403, which covers refined copper and copper alloys in unwrought forms like ingots or billets. The distinction is that 7403 alloys are intended for further mechanical working (rolling, drawing), whereas 7405 master alloys are too brittle for such processes and are only used as additives. Another error involves phosphor copper; if the phosphorus content exceeds 15% by weight, the substance is considered a chemical compound and is classified under HS code 2853.90. Additionally, master alloys of other base metals (like aluminum master alloys) must be classified in their respective chapters (e.g., 7601 for aluminum).
Top exporters and importers of HS 740500 (the code used for copper master alloys), 2025
In 2025, the largest exporter of HS 740500 (the code used for copper master alloys) in UN Comtrade data was Belgium, with 45% of world exports; the largest importer in UN Comtrade data was Germany, with 30% of world imports. Countries that did not report 2025 data are estimated from partner records, which can understate them.
Figures cover everything classified under HS 740500, not only copper master alloys.
Top exporters 2025 · share of world exports
- 1 Belgium $104M 45% of world exports
- 2 South Korea $30M 13% of world exports
- 3 Kazakhstan $22M 9.3% of world exports
World total: $233M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $70M 30% of world imports
- 2 Singapore $20M 8.8% of world imports
- 3 Türkiye $12M 5.1% of world imports
World total: $232M Reported figures on UN Comtrade ↗
How these figures are built
109 countries reported 2025 trade to UN Comtrade in HS 2022, and their own totals are used. Countries that did not report are estimated from what other countries recorded trading with them. Those estimates miss trade with other non-reporting countries, so they can be low, and a non-reporting country can rank higher than shown or be missing from the list. World totals add both and leave out trade between two non-reporting countries. Figures are in current US dollars; reported imports are mostly valued CIF and exports FOB, and exports include re-exports. The UN Comtrade links show the underlying records; they can also list a few reporters left out here (regional groups and older HS editions).
Source: UN Comtrade (United Nations Statistics Division), 2025 annual data.
Brazil NCM code for copper master alloys
Brazil classifies copper master alloys under NCM 7405.00.00: HS 7405.00 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about copper master alloys
What is the HS code for Copper master alloys?
The HS code for Copper master alloys is 740500 (Copper; master alloys of copper). The specific HS code for master alloys of copper is 7405.00.
How do I classify Copper master alloys for customs?
Copper master alloys is classified under HS code 740500 — Copper; master alloys of copper. This is a 6-digit subheading level code.
Can master alloys be used to manufacture parts directly?
No, master alloys are generally not malleable and are too brittle for direct manufacturing; they are intended to be melted and added to other metals to adjust their chemical composition.
Which countries are the top exporters of copper master alloys (HS 740500)?
In 2025, the top exporters of HS 740500 (the code used for copper master alloys) in UN Comtrade data were Belgium ($104M, 45% of world exports), South Korea ($30M) and Kazakhstan ($22M). World exports came to about $233M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Which countries are the top importers of copper master alloys (HS 740500)?
In 2025, the top importers of HS 740500 (the code used for copper master alloys) in UN Comtrade data were Germany ($70M, 30% of world imports), Singapore ($20M) and Türkiye ($12M). World imports came to about $232M, adding countries' reported figures and partner-based estimates for those that did not report (UN Comtrade data). Countries that did not report 2025 data are estimated from partner records, which can understate them.
Is the HS code for Copper master alloys the same in all countries?
The base HS code 740500 for Copper master alloys is internationally standardized for the first 6 digits across 200+ countries. Individual countries may add additional digits for national tariff lines and specific classifications.
What is the NCM code for copper master alloys in Brazil?
In Brazil, copper master alloys (HS 740500) is classified under NCM 7405.00.00.