Subheading · Chapter 25 · Heading 2521
2521.00: Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
Subheading 2521.00 belongs to heading 2521 (limestone flux) in chapter 25.
What you pay
Importing into UK
Rates by national line · UK Global Tariff
UK lines →- 2521 00 00 00 Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement
Additional duties and import rules
Charges on top of the customs duty, and rules the goods must meet at the border.
Import requirements 3
- Prohibition or restrictionImport prohibition
- Applies to goods from
- North Korea
- Legal act
- S.I. 2019/411
- Import controlRestriction on entry into free circulation
- Applies to goods from
- Ukraine
- Legal act
- S.I. 2022/395
- Documents
- 9009
- 9010
- 9017
- Import controlImport control - Waste
- Applies to goods from
- all countries
- Legal act
- S.I. 2019/590
- Documents
- C672 Information document accompanying shipments of waste as mentioned in Regulation (EU) 2024/1157 – Article 18 and Annex VII
- C669 Notification document as mentioned in Regulation (EU) 2024/1157 - Article 5 and Annex IA
- Y923 Product not subjected to the provisions of Regulation (EU) 2024/1157
- C670 Movement document as mentioned in Regulation (EU) 2024/1157 – Article 5 and Annex IB
Preferential rates by country
| Agreement or scheme | Countries | Rate |
|---|---|---|
| standard rate (no agreement) | — | |
| DCTS Comprehensive | Afghanistan, Angola, Bangladesh, Benin and 38 moreAfghanistan, Angola, Bangladesh, Benin, Bhutan, Burkina Faso, Burundi, Cambodia, Central African Republic, Chad, Comoros, Congo - Kinshasa, Djibouti, Eritrea, Ethiopia, Gambia, Guinea, Guinea-Bissau, Haiti, Kiribati, Laos, Liberia, Malawi, Mali, Mauritania, Myanmar (Burma), Nepal, Niger, Rwanda, São Tomé & Príncipe, Senegal, Sierra Leone, Somalia, South Sudan, Sudan, Tanzania, Timor-Leste, Togo, Tuvalu, Uganda, Yemen, Zambia | Free |
| European Union (including code "EU") | Free | |
| CARIFORUM | Antigua & Barbuda, Bahamas, Barbados, Belize and 10 moreAntigua & Barbuda, Bahamas, Barbados, Belize, Dominica, Dominican Republic, Grenada, Guyana, Jamaica, St Kitts & Nevis, St Lucia, St Vincent & the Grenadines, Suriname, Trinidad & Tobago | Free |
| OCTs (Overseas Countries and Territories) | Anguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands and 7 moreAnguilla, Bermuda, British Indian Ocean Territory, British Virgin Islands, Cayman Islands, Falkland Islands, Montserrat, Pitcairn Islands, South Georgia & South Sandwich Islands, St Helena, Turks & Caicos Islands | Free |
| Central America | Costa Rica, El Salvador, Guatemala, Honduras, Nicaragua, Panama | Free |
| SADC EPA | Botswana, Eswatini, Lesotho, Mozambique, Namibia | Free |
| Eastern and Southern Africa States | Madagascar, Mauritius, Seychelles, Zimbabwe | Free |
| CPTPP | Brunei, Malaysia | Free |
| UK–Andorra agreement | Andorra | Free |
| UK–Albania agreement | Albania | Free |
| UK–Australia agreement | Australia | Free |
| UK–Canada agreement | Canada | Free |
| UK–Switzerland agreement | Switzerland | Free |
| UK–Côte d’Ivoire agreement | Côte d’Ivoire | Free |
| UK–Chile agreement | Chile | Free |
| UK–Cameroon agreement | Cameroon | Free |
| UK–Colombia agreement | Colombia | Free |
| UK–Ceuta & Melilla agreement | Ceuta & Melilla | Free |
| UK–Ecuador agreement | Ecuador | Free |
| UK–Egypt agreement | Egypt | Free |
| UK–Fiji agreement | Fiji | Free |
| UK–Faroe Islands agreement | Faroe Islands | Free |
| UK–Georgia agreement | Georgia | Free |
| UK–Ghana agreement | Ghana | Free |
| UK–Israel agreement | Israel | Free |
| UK–India agreement | India | Free |
| UK–Iceland agreement | Iceland | Free |
| UK–Jordan agreement | Jordan | Free |
| UK–Japan agreement | Japan | Free |
| UK–Kenya agreement | Kenya | Free |
| UK–South Korea agreement | South Korea | Free |
| UK–Lebanon agreement | Lebanon | Free |
| UK–Liechtenstein agreement | Liechtenstein | Free |
| UK–Morocco agreement | Morocco | Free |
| UK–Moldova agreement | Moldova | Free |
| UK–North Macedonia agreement | North Macedonia | Free |
| UK–Mexico agreement | Mexico | Free |
| UK–Norway agreement | Norway | Free |
| UK–New Zealand agreement | New Zealand | Free |
| UK–Peru agreement | Peru | Free |
| UK–Papua New Guinea agreement | Papua New Guinea | Free |
| UK–Palestinian Territories agreement | Palestinian Territories | Free |
| UK–Serbia agreement | Serbia | Free |
| UK–Solomon Islands agreement | Solomon Islands | Free |
| UK–Singapore agreement | Singapore | Free |
| UK–San Marino agreement | San Marino | Free |
| UK–Tunisia agreement | Tunisia | Free |
| UK–Türkiye agreement | Türkiye | Free |
| UK–Ukraine agreement | Ukraine | Free |
| UK–Vietnam agreement | Vietnam | Free |
| UK–Samoa agreement | Samoa | Free |
| UK–Kosovo agreement | Kosovo | Free |
| UK–South Africa agreement | South Africa | Free |
UK: imports by month
Main suppliers, last 12 months
| Country | Value | Share | Change |
|---|---|---|---|
 Ireland | £481k | 47.5% | +56% |
 United States | £351k | 34.7% | +1,693.5% |
 India | £137k | 13.6% | -35.7% |
 Türkiye | £16k | 1.6% | -37% |
 Portugal | £11k | 1.1% | +110.6% |
 Netherlands | £9k | 0.8% | — |
 Poland | £5k | 0.5% | -66.9% |
 Denmark | £2k | 0.2% | — |
Same subheading in other tariffs
World trade in 2024
Trade value (US$) no reported trade < US$165kUS$165k+US$3m+US$13m+> US$74m
Exports: 118
- United Arab Emirates: US$612m
- Japan: US$119m
- Oman: US$105m
- Belgium: US$74m
- Malaysia: US$72m
- Vietnam: US$48m
- Spain: US$35m
- France: US$24m
- Egypt: US$17m
- India: US$15m
- United States: US$13m
- Canada: US$11m
- Thailand: US$11m
- Norway: US$10m
- Germany: US$10m
- Poland: US$8m
- Sweden: US$7m
- Austria: US$7m
- Kazakhstan: US$6m
- China: US$6m
- Dominican Republic: US$5m
- United Kingdom: US$4m
- Denmark: US$4m
- Türkiye: US$4m
- Czechia: US$4m
- South Africa: US$3m
- Philippines: US$3m
- Moldova: US$3m
- Estonia: US$2m
- Bhutan: US$2m
- Ireland: US$2m
- Netherlands: US$2m
- Slovakia: US$2m
- Tunisia: US$1m
- Barbados: US$1m
- Jordan: US$885k
- Zambia: US$835k
- Tanzania: US$770k
- Italy: US$713k
- Nepal: US$505k
- Montenegro: US$474k
- Morocco: US$473k
- Bosnia & Herzegovina: US$412k
- Finland: US$382k
- North Macedonia: US$331k
- Hungary: US$298k
- Russia: US$264k
- Mauritius: US$251k
- Zimbabwe: US$248k
- Portugal: US$213k
- Kenya: US$207k
- Lithuania: US$199k
- Romania: US$179k
- Australia: US$169k
- South Korea: US$165k
- Brazil: US$164k
- Pakistan: US$143k
- Colombia: US$138k
- Greece: US$137k
- Iran: US$114k
Trade value (US$) no reported trade < US$147kUS$147k+US$1m+US$11m+> US$34m
Imports: 153
- India: US$709m
- Taiwan: US$92m
- Netherlands: US$77m
- South Korea: US$47m
- Germany: US$34m
- Japan: US$29m
- Bangladesh: US$25m
- Sweden: US$24m
- Kuwait: US$24m
- Madagascar: US$22m
- United States: US$16m
- Australia: US$14m
- Brazil: US$13m
- Canada: US$12m
- Belgium: US$11m
- Indonesia: US$11m
- Bahrain: US$10m
- Hong Kong SAR China: US$9m
- Finland: US$8m
- Malaysia: US$8m
- Kyrgyzstan: US$6m
- Singapore: US$5m
- Luxembourg: US$4m
- Chile: US$4m
- Côte d’Ivoire: US$4m
- France: US$4m
- Ukraine: US$3m
- Qatar: US$3m
- Cambodia: US$3m
- Slovakia: US$3m
- Denmark: US$2m
- Italy: US$2m
- Lithuania: US$2m
- New Caledonia: US$2m
- Czechia: US$2m
- Botswana: US$2m
- Zimbabwe: US$1m
- Latvia: US$1m
- Peru: US$1m
- Ireland: US$1m
- United Kingdom: US$1m
- Saudi Arabia: US$1m
- Switzerland: US$980k
- Poland: US$942k
- China: US$831k
- Burundi: US$758k
- Norway: US$709k
- Guyana: US$643k
- Iceland: US$620k
- Liberia: US$518k
- Estonia: US$501k
- Malta: US$494k
- Croatia: US$439k
- Thailand: US$433k
- Haiti: US$423k
- Hungary: US$374k
- Guinea-Bissau: US$350k
- Bahamas: US$341k
- New Zealand: US$334k
- Serbia: US$331k
Top exporters
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 |  United Arab Emirates | US$612m | 48.4% |
| 2 |  Japan | US$119m | 9.4% |
| 3 |  Oman | US$105m | 8.3% |
| 4 |  Belgium | US$74m | 5.9% |
| 5 |  Malaysia | US$72m | 5.7% |
| 6 |  Vietnam | US$48m | 3.8% |
| 7 |  Spain | US$35m | 2.8% |
| 8 |  France | US$24m | 1.9% |
| 9 |  Egypt | US$17m | 1.4% |
| 10 | India | US$15m | 1.2% |
Top importers
| Rank | Country | Value | Share |
|---|---|---|---|
| 1 | India | US$709m | 56.1% |
| 2 |  Taiwan | US$92m | 7.3% |
| 3 | Netherlands | US$77m | 6.1% |
| 4 |  South Korea | US$47m | 3.7% |
| 5 |  Germany | US$34m | 2.7% |
| 6 | Japan | US$29m | 2.3% |
| 7 |  Bangladesh | US$25m | 2% |
| 8 |  Sweden | US$24m | 1.9% |
| 9 |  Kuwait | US$24m | 1.9% |
| 10 |  Madagascar | US$22m | 1.7% |
Recent rule changes mentioning this code
Acts whose text cites this code or its heading. Check the act itself: a code can be cited for reasons other than a change of its duty.
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Anti-dumping · Applies from: CELEX 32026R1794 · Source: eur-lex.europa.eu
Subheading 2521.00 is a single line in the EU Combined Nomenclature, where the duty is duty-free.
The Turkish Customs Tariff Schedule has one tariff line for subheading 2521.00; the duty is duty-free.
156 countries pay no duty in the UK thanks to trade agreements and preference schemes such as DCTS Comprehensive and European Union, against a standard rate of .
Imports of these goods into the UK came to £1m between September 2025 and August 2026 (up 28% on the year before); Ireland supplied 48%, followed by United States.
In 2024, countries exported these goods worth US$1bn (−3.1% year on year).
The largest exporter was the United Arab Emirates (US$612m), followed by Japan.
Questions and answers
What is the HS code for limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement?
Limestone flux; limestone and other calcareous stone, of a kind used for the manufacture of lime or cement fall under HS subheading 2521.00, part of heading 2521, in section V of the Harmonized System.
What is the import duty on limestone flux in the EU?
Under the EU Combined Nomenclature, imports under 2521.00 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
What is the import duty on limestone flux in the EU?
Under the Turkish Customs Tariff Schedule, imports under 2521.00 from countries without a preferential agreement are free of duty. Preferential rates, anti-dumping duties and VAT are not included.
Which country exports the most limestone flux?
The United Arab Emirates, with US$612m in 2024 (48.4% of world exports).
Which countries can export these goods to the UK duty-free?
156 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, CARIFORUM. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of applies. Pick a country above to see its rate.
Where does the UK import these goods from?
In the 12 months to August 2026, the largest suppliers were Ireland (48%), United States (35%) and India (14%), out of total imports of £1m.