Product classification
HS code for Electronic grade silicon: 2804.61
Silicon, containing by weight not less than 99.99% of silicon.
Classification of electronic grade silicon under HS 2804.61
Electronic grade silicon is classified under HS code 2804.61. This classification is found in Chapter 28, which covers inorganic chemicals and precious metal compounds. Heading 2804 includes hydrogen, rare gases, and other non-metals. The specific subheading 2804.61 is reserved for silicon containing by weight not less than 99.99% of silicon. This extreme level of purity is the defining characteristic of "electronic grade" or "semiconductor grade" silicon, as even minute impurities can significantly alter the electrical properties of the material. This silicon is typically traded in the form of polycrystalline chunks or unworked ingots. The classification is strictly based on the chemical purity threshold, making it a critical code for the semiconductor supply chain and the manufacturing of integrated circuits and solar cells.
- Covers
- Polycrystalline silicon (99.99%+ purity)
- Unworked monocrystalline silicon ingots
- High-purity silicon chunks for Czochralski growth
- Semiconductor-grade silicon raw material
- Ultra-pure silicon for photovoltaic applications
- Also under 2804.61
- Wacker Polysilicon
- Hemlock Semiconductor
- GCL-Poly
- REC Silicon
- Shin-Etsu Chemical Silicon Wafers
Codes often confused with 2804.61
Common mistake. Electronic grade silicon is frequently confused with HS code 2804.69, which covers silicon with a purity of less than 99.99% (often referred to as metallurgical grade silicon). Another significant misclassification is HS code 3818.00, which covers chemical elements doped for use in electronics, in the form of discs, wafers, or similar forms. If the silicon has been doped with elements like boron or phosphorus and sliced into wafers, it must be moved from 2804 to 3818.
Top exporters and importers of HS 280461 (the code used for electronic grade silicon), 2025
In 2025, the largest exporter of HS 280461 (the code used for electronic grade silicon) in UN Comtrade data was the United States, with 32% of world exports; the largest importer in UN Comtrade data was Japan, with 21% 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 280461, not only electronic grade silicon.
Top exporters 2025 · share of world exports
- 1 United States $949M 32% of world exports
- 2 Germany $886M 30% of world exports
- 3 China $379M 13% of world exports
World total: $3.0B Reported figures on UN Comtrade ↗
Top importers 2025 · share of world imports
- 1 Japan $627M 21% of world imports
- 2 Vietnam* ~$568M 19% of world imports · partner records ↗
- 3 China $521M 17% of world imports
World total: $3.0B 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 marked * did not, so their figures add up what other countries recorded trading with them, and their exports are valued at buyers' CIF prices. 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 electronic grade silicon
Brazil classifies electronic grade silicon under NCM 2804.61.00: HS 2804.61 with 00 added.
Source: Siscomex NCM table, updated Oct 2026. The Portuguese text on each NCM page is the official one.
EU Regulatory Requirements
This product falls under the Carbon Border Adjustment Mechanism (CBAM). Importers to the EU must declare embedded carbon emissions and purchase CBAM certificates.
Questions about electronic grade silicon
What is the HS code for Electronic grade silicon?
The HS code for Electronic grade silicon is 280461 (Silicon; containing by weight not less than 99.99% of silicon). The HS code for silicon with a purity of at least 99.99% is 2804.61.
How do I classify Electronic grade silicon for customs?
Electronic grade silicon is classified under HS code 280461 — Silicon; containing by weight not less than 99.99% of silicon. This is a 6-digit subheading level code.
When does silicon move from 2804 to 3818?
Silicon moves to HS code 3818 when it has been doped for electronic use and is shaped into wafers, discs, or similar forms ready for semiconductor fabrication.
Which countries are the top exporters of electronic grade silicon (HS 280461)?
In 2025, the top exporters of HS 280461 (the code used for electronic grade silicon) in UN Comtrade data were the United States ($949M, 32% of world exports), Germany ($886M) and China ($379M). World exports came to about $3.0B, 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 electronic grade silicon (HS 280461)?
In 2025, the top importers of HS 280461 (the code used for electronic grade silicon) in UN Comtrade data were Japan ($627M, 21% of world imports), Vietnam (about $568M) and China ($521M). World imports came to about $3.0B, 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 Electronic grade silicon the same in all countries?
The base HS code 280461 for Electronic grade silicon 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 electronic grade silicon in Brazil?
In Brazil, electronic grade silicon (HS 280461) is classified under NCM 2804.61.00.