Product classification
HS code for Silver iodide: 2843.29
Silver compounds, excluding silver nitrates.
Classification of silver iodide under HS 2843.29
Silver iodide is classified under HS code 2843.29, which specifically covers silver compounds other than silver nitrate. This classification is determined by the chemical composition of the substance, which consists of silver and iodine. Within Chapter 28 of the Harmonized System, which deals with inorganic chemicals and precious metal compounds, heading 2843 is reserved for colloidal precious metals, inorganic or organic compounds of precious metals, and amalgams of precious metals. Since silver iodide is an inorganic compound of a precious metal (silver), it must be categorized here. Subheading 2843.21 is dedicated solely to silver nitrate, leaving 2843.29 as the residual category for all other silver compounds, including halides like silver iodide. The classification remains consistent regardless of the physical form, whether it is a fine powder or incorporated into a specialized delivery system for industrial applications. The General Rules for the Interpretation (GRI) of the Harmonized System dictate that products should be classified according to the terms of the headings and any relative section or chapter notes. Chapter 28 Note 1 generally limits the scope of the chapter to separate chemical elements and separate chemically defined compounds. Silver iodide fits this description perfectly as a chemically defined compound of silver used in photography and meteorology.
- Covers
- Silver iodide powder (high purity)
- Cloud seeding agents containing silver iodide
- Photographic grade silver iodide
- Silver iodide crystals for laboratory use
- Also under 2843.29
- Sigma-Aldrich (various silver compounds)
- Alfa Aesar (various silver compounds)
- Johnson Matthey (precious metal chemicals)
- Umicore (precious metal chemicals)
- Heraeus (precious metal chemicals)
Codes often confused with 2843.29
Common mistake. Silver iodide is frequently misclassified under HS code 2843.21, which is reserved exclusively for silver nitrate. Another common error is using HS code 2827.60, which covers other iodides of non-precious metals. Because silver is a precious metal, its compounds must stay within heading 2843 regardless of the anion involved.
Top exporters and importers of HS 284329 (the code used for silver iodide), 2025
In 2025, the largest exporter of HS 284329 (the code used for silver iodide) in UN Comtrade data was the United Kingdom, with 75% of world exports; the largest importer in UN Comtrade data was Germany, with 19% 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 284329, not only silver iodide.
Top exporters 2025 · share of world exports
- 1 United Kingdom $678M 75% of world exports
- 2 South Korea $64M 7.0% of world exports
- 3 Germany $40M 4.4% of world exports
World total: $908M Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Germany $50M 19% of world imports
- 2 Malaysia $37M 14% of world imports
- 3 Singapore $30M 11% of world imports
World total: $266M 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 codes for silver iodide
Brazil splits HS 2843.29 into 2 NCM codes. Pick the one that matches your product:
- 2843.29.10Silver vitellinate
- 2843.29.90Other silver compounds
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
Questions about silver iodide
What is the HS code for Silver iodide?
The HS code for Silver iodide is 284329 (Silver compounds; excluding silver nitrates). The HS code for silver iodide is 2843.29, categorized under silver compounds excluding silver nitrates.
How do I classify Silver iodide for customs?
Silver iodide is classified under HS code 284329 — Silver compounds; excluding silver nitrates. This is a 6-digit subheading level code.
Is silver iodide classified as a hazardous material for shipping?
While the HS code 2843.29 identifies the chemical nature, shipping regulations often classify it as an environmentally hazardous substance (UN3077) depending on the concentration and volume.
Which countries are the top exporters of silver iodide (HS 284329)?
In 2025, the top exporters of HS 284329 (the code used for silver iodide) in UN Comtrade data were the United Kingdom ($678M, 75% of world exports), South Korea ($64M) and Germany ($40M). World exports came to about $908M, 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 silver iodide (HS 284329)?
In 2025, the top importers of HS 284329 (the code used for silver iodide) in UN Comtrade data were Germany ($50M, 19% of world imports), Malaysia ($37M) and Singapore ($30M). World imports came to about $266M, 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 Silver iodide the same in all countries?
The base HS code 284329 for Silver iodide 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 silver iodide in Brazil?
Brazil splits HS 284329 into 2 NCM codes, so the right one for silver iodide depends on the product's details: 2843.29.10 (Silver vitellinate), 2843.29.90 (Other silver compounds).