HS Code 75.01 – Nickel mattes; nickel oxide sinters and other intermediate products of nickel metallurgy

HS code 7501 is a 4-digit heading in the Harmonized System that covers: Nickel mattes; nickel oxide sinters and other intermediate products of nickel metallurgy. HS Heading 7501 specifically covers "Nickel mattes; nickel oxide sinters and other intermediate products of nickel metallurgy." This classification is critical for understanding the initial stages of nickel processing before the metal reaches its unwrought or refined state. Nickel mattes are crude, high-sulfur compounds of nickel (and often copper or iron) produced by smelting nickel sulfide ores, serving as an intermediate product for further refining. Nickel oxide sinters are typically produced by roasting nickel sulfide concentrates, resulting in a product rich in nickel oxide, suitable for reduction to metallic nickel or direct use in certain applications like stainless steel production. The phrase "other intermediate products of nickel metallurgy" captures any other partially processed nickel forms that are beyond the raw ore but not yet unwrought metal. The scope is strictly limited to these intermediate forms, distinguishing them from raw nickel ores (Chapter 26) and refined, unwrought nickel (7502). This heading is vital for trade compliance as it differentiates these high-value, semi-processed materials, impacting tariffs and import regulations, particularly in countries with significant nickel refining industries. Historically, the trade in these intermediates has been crucial for global nickel supply chains, enabling resource-rich countries to export partially processed material to refining hubs, thereby adding initial value and facilitating efficient metal recovery. It highlights the sequential nature of metallurgical processing within Section XV.

Nickel mattes, nickel oxide sinters, intermediate nickel sulfide products, crude nickel hydroxide precipitate, mixed nickel-cobalt hydroxide precipitate, ferronickel matte, nickel speiss, concentrated nickel sulfide, partially refined nickel matte, granulated nickel matte, roasted nickel concentrate, calcined nickel ore, nickel-iron matte, nickel-copper matte, nickel refinery intermediates, sulfidic nickel concentrate, partially desulfurized nickel matte, nickel-rich slag (for recovery), nickel-cobalt alloy matte, nickel sulfide concentrate, partially oxidized nickel matte, nickel production intermediates, nickel smelter products, nickel converter matte.

A common misclassification error involves confusing nickel mattes and sinters with raw nickel ores (Chapter 26) or with unwrought nickel (7502). The key distinction lies in the level of processing: 7501 products have undergone initial metallurgical treatment, transforming them from ore into a more concentrated, but not yet refined, form. For example, nickel ore concentrates, while processed, are still generally classified under Chapter 26 if they haven't reached the matte or sinter stage. Conversely, if the product is already refined, pure nickel in forms like cathodes or ingots, it should be classified under 7502, not 7501. Another mistake is classifying ferro-nickel (7208 or 7202 depending on nickel content) here, as ferro-nickel is a ferro-alloy, not an intermediate product for pure nickel metallurgy.

In 2025, the top exporters of HS code 7501 in UN Comtrade data were Indonesia ($8.4B, 69% of world exports), Russia (about $834M) and Canada ($761M). World exports came to about $12.1B, 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.

In 2025, the top importers of HS code 7501 in UN Comtrade data were China ($9.4B, 65% of world imports), Japan ($1.8B) and Norway ($1.7B). World imports came to about $14.4B, 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.

HS code 7501 is a 4-digit heading under Chapter 75 of the Harmonized System. The first 2 digits (75) identify the chapter, and digits 3-4 (01) specify the heading. This code contains multiple 6-digit subheadings for precise product classification.