# United States tariff line 2846.90.80.75: Other > In the United States tariff, line 2846.90.80.75 covers mixtures of rare-earth carbonates other than of cerium carbonate. The general (MFN) duty rate is 3.7%. It falls under HS subheading 2846.90 in heading 28.46 (chapter 28). Source: https://border.bot/countries/united-states/hs-codes/2846908075 Last updated: 9 October 2026 [Countries](https://border.bot/countries) / [United States](https://border.bot/countries/united-states) / [Chapter 28](https://border.bot/countries/united-states/hs-codes/28) / [2846.90](https://border.bot/countries/united-states/hs-codes/284690) / [2846.90.80.75](https://border.bot/countries/united-states/hs-codes/2846908075) ## Key facts - Tariff line: 2846.90.80.75 - Covers: Mixtures of rare-earth carbonates other than of cerium carbonate - Duty (MFN): 3.7% - Preferential rates: From free (17 programmes or origins) - Additional duties: None recorded - Restrictions: None recorded - Tariff: [United States](https://border.bot/countries/united-states) - HS subheading: [2846.90](https://border.bot/hs-codes/284690) ## What this line covers In the United States tariff, line 2846.90.80.75 covers mixtures of rare-earth carbonates other than of cerium carbonate. Its legal text is “Other”, read under “Other”, “Other”, “Other” and “Mixtures of rare-earth carbonates other than of cerium carbonate”. Products commonly classified here include Lanthanum(III) oxide (CAS No. 1312-81-8), Lanthanum carbonate (CAS No. 54451-24-0), Lutetium oxide (CAS No. 12032-20-1), Lanthanum phosphate, cerium terbium-doped (CAS No. 95823-34-0) and Yttrium oxides having a purity of at least 99.9 percent (CAS No. 1314-36-9) (border.bot’s search keywords, not legal text). ## How it is structured It falls under HS subheading 2846.90 in heading 28.46 (chapter 28). The first six digits are the Harmonized System code; the 4 digits after them are added by the United States tariff. - Chapter 28: Inorganic chemicals; organic or inorganic compounds of precious metals, of rare-earth metals, of radioactive elements or of isotopes - Heading 28.46: Compounds, inorganic or organic, of rare-earth metals, of yttrium or of scandium, or of mixtures of these metals - Subheading 2846.90: Other - Within the subheading: Other - Within the subheading: Other - Within the subheading: Mixtures of rare-earth carbonates other than of cerium carbonate - Line 2846.90.80.75: Other ## Duty The general (MFN) duty rate is 3.7%. The rate is published on 2846.90.80. Duty-free entry applies to goods that qualify under 16 programmes, and to goods from a group of origins (origin group A). - Free: a group of origins (origin group A) (A) - Free: United States-Australia Free Trade Agreement (AU) - Free: United States-Bahrain Free Trade Agreement Implementation Act (BH) - Free: United States-Chile Free Trade Agreement (CL) - Free: United States-Colombia Trade Promotion Agreement Implementation Act (CO) - Free: African Growth and Opportunity Act (D) - Free: Caribbean Basin Economic Recovery Act (E) - Free: United States-Israel Free Trade Area (IL) - Free: United States-Jordan Free Trade Area Implementation Act (JO) - Free: United States-Korea Free Trade Agreement Implementation Act (KR) - Free: United States-Morocco Free Trade Agreement Implementation Act (MA) - Free: United States-Oman Free Trade Agreement Implementation Act (OM) - Free: Dominican Republic-Central America-United States Free Trade Agreement (P) - Free: United States-Panama Trade Promotion Agreement Implementation Act (PA) - Free: United States-Peru Trade Promotion Agreement Implementation Act (PE) - Free: United States-Mexico-Canada Agreement (S) - Free: United States-Singapore Free Trade Agreement (SG) ## In other countries No other national tariff on border.bot has live lines under 2846.90 yet. - [The Harmonized System text for 2846.90](https://border.bot/hs-codes/284690) ## Other lines under 2846.90 - [2846.90.20.05](https://border.bot/countries/united-states/hs-codes/2846902005) Containing lanthanum as the predominant metal - [2846.90.20.15](https://border.bot/countries/united-states/hs-codes/2846902015) Containing yttrium or scandium as the predominant metal - [2846.90.20.40](https://border.bot/countries/united-states/hs-codes/2846902040) Other - [2846.90.20.82](https://border.bot/countries/united-states/hs-codes/2846902082) Containing yttrium or scandium as the predominant metal - [2846.90.20.84](https://border.bot/countries/united-states/hs-codes/2846902084) Other - [2846.90.40.00](https://border.bot/countries/united-states/hs-codes/2846904000) Yttrium bearing materials and compounds containing by weight more than 19 percent but less than 85 percent yttrium oxide equivalent - [2846.90.80.70](https://border.bot/countries/united-states/hs-codes/2846908070) Containing lanthanum as the predominant metal - [2846.90.80.90](https://border.bot/countries/united-states/hs-codes/2846908090) Other - Previous line: [2846.90.80.70](https://border.bot/countries/united-states/hs-codes/2846908070) Containing lanthanum as the predominant metal - Next line: [2846.90.80.90](https://border.bot/countries/united-states/hs-codes/2846908090) Other ## Frequently asked questions ### What does tariff line 2846.90.80.75 cover in the United States tariff? In the United States tariff, line 2846.90.80.75 covers mixtures of rare-earth carbonates other than of cerium carbonate. ### What is the general (MFN) duty on 2846.90.80.75 in the United States? The general (MFN) duty rate is 3.7%. The rate is published on 2846.90.80. ### Which preferential rates apply to 2846.90.80.75? Duty-free entry applies to goods that qualify under 16 programmes: the United States-Australia Free Trade Agreement, the United States-Bahrain Free Trade Agreement Implementation Act, the United States-Chile Free Trade Agreement, the United States-Colombia Trade Promotion Agreement Implementation Act, African Growth and Opportunity Act, Caribbean Basin Economic Recovery Act, the United States-Israel Free Trade Area, the United States-Jordan Free Trade Area Implementation Act, the United States-Korea Free Trade Agreement Implementation Act, the United States-Morocco Free Trade Agreement Implementation Act, the United States-Oman Free Trade Agreement Implementation Act, the Dominican Republic-Central America-United States Free Trade Agreement, the United States-Panama Trade Promotion Agreement Implementation Act, the United States-Peru Trade Promotion Agreement Implementation Act, the United States-Mexico-Canada Agreement and the United States-Singapore Free Trade Agreement, and to goods from a group of origins (origin group A). ## Sources and updates The tariff lines for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The duty rates for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. The trade programmes for the United States come from border.bot release 1 (edition 2026HTSRev21), read from the publisher’s files, and have been live since 9 October 2026. This page was last updated on 9 October 2026. Guidance from published tariff data, not a binding ruling. For a decision customs must follow, apply to the destination’s customs authority for a binding tariff ruling. Official source files: - https://hts.usitc.gov/reststop/exportList?from=0000000000&to=9999999999&format=CSV&styles=false Machine-readable: https://border.bot/countries/united-states/hs-codes/2846908075.json