HTS 2853.90.10Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals:Other: Phosphides, whether or not chemically defined, excluding ferrophosphorous: Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous

What that translates to:Phosphor copper (copper phosphide), over 15% phosphorus

Also written 28539010 or 2853.90.1000. Rates as CBP is collecting them today. Updated Oct 1, 2026.

Country of origin

Phosphor copper (copper phosphide), over 15% phosphorus (HTS 2853.90.10) from China owe 27.6% in total duties as of Oct 1, 2026: a 2.6% regular duty plus a 25% China tariff (Section 301).

Total duty rate27.6%That's $2,760 on a $10,000 shipment.

China tariffSection 301, since May 10, 201925%

Regular dutyBase rate (MFN) in the tariff schedule2.6%

Total duty27.6%

No forced-labor tariff on this product: it's on the tariff's exemption list (HTS 9903.05.86).

Sources: USITC Harmonized Tariff Schedule, Revision 20 (2026); USTR, Notice of Modification of Section 301 Action (List 3 raised to 25% from May 10, 2019), 84 FR 20459, May 9, 2019; HTS 9903.88.03.

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Official description

Phosphides, whether or not chemically defined, excluding ferrophosphorous; other inorganic compounds (including distilled or conductivity water and water of similar purity); liquid air (whether or not rare gases have been removed); compressed air; amalgams, other than amalgams of precious metals: Other: Phosphides, whether or not chemically defined, excluding ferrophosphorous: Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous

Legal text from the Harmonized Tariff Schedule, Revision 20 (2026), chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes.

Statistical lines

The 10-digit numbers used on entry paperwork. They share this code's duty rates.

2853.90.1000 (2853901000)Of copper (phosphor copper), containing more than 15 percent by weight of phosphorous · reported in kg

What changed for this code

Jul 24, 2026Forced-labor tariffs start on imports from 60 economies (Section 301)
Jul 22, 202625% Section 301 tariff on products of Brazil starts
Jan 1, 2026Section 301 tariff on Nicaragua starts at 0%, set to rise to 10% in 2027 and 15% in 2028

Questions about HTS 2853.90.10

What is the duty rate for HTS 2853.90.10?

The regular (column 1 general) rate printed in the tariff schedule is 2.6%. Goods from China owe 27.6% in total as of Oct 1, 2026, including any additional tariffs. Additional tariffs depend on the country of origin; choose one above to see its full rate.

Is HTS 2853.90.10 subject to Section 301 tariffs?

Yes, for goods from 2 countries and territories as of Oct 1, 2026: China, Nicaragua. Choose a country above to see the rate and any exemptions.

Is HTS 2853.90.10 subject to Section 232 tariffs?

No Section 232 tariff applies to HTS 2853.90.10 as of Oct 1, 2026, from any country of origin.

HTSLookup shows the duties CBP collects on this code by country of origin. Antidumping or countervailing duties may also apply to some exporters; they're set per company and aren't shown.