Subheading · Chapter 29 · Heading 2918

2918.99

2918.99: Carboxylic acids with additional oxygen function and their: other, other

Other oxygen-function carboxylic acids

Official description Other

2918.99 is the HS subheading for other oxygen-function carboxylic acids, under heading 2918 in chapter 29.

What you pay

Importing into UK from Barbados

Customs duty Free preferential rate · CARIFORUM · across 20 national lines
Additional duties and charges 2 additional measures Import requirements: 2
VAT 20.00 % import VAT
Duty calculatorCalculate duty and taxes →

Rates by national line · UK Global Tariff

UK lines →
  1. 2918 99 00 00 Other
  2. 2918 99 40 00 2.6-dimethoxybenzoic acid; dicamba (iso); sodium phenoxyacetate Free
  3. 2918 99 90 00 Other
  4. 2918 99 90 13 3-methoxy-2-methylbenzoyl chloride (cas rn 24487-91-0) Free6%
  5. 2918 99 90 15 Ethyl 2.3-epoxy-3-phenylbutyrate (cas rn 77-83-8) Free6%
  6. 2918 99 90 18 Ethyl 2-hydroxy-2-(4-phenoxyphenyl)propanoate (cas rn 132584-17-9) Free6%
  7. 2918 99 90 25 Methyl (e)-3-methoxy-2-(2-chloromethylphenyl)-2-propenoate (cas rn 117428-51-0) Free6%
  8. 2918 99 90 27 Ethyl 3-ethoxypropionate (cas rn 763-69-9) Free6%
  9. 2918 99 90 35 P-anisic acid (cas rn 100-09-4) Free6%
  10. 2918 99 90 38 Diclofop-methyl (iso) (cas rn 51338-27-3) Free6%
  11. 2918 99 90 40 Trans-4-hydroxy-3-methoxycinnamic acid (cas rn 1135-24-6) Free6%
  12. 2918 99 90 45 4-methylcatechol dimethyl acetate (cas rn 52589-39-6) Free6%
  13. 2918 99 90 48 2-bromo-5-methoxybenzoic acid (cas rn 22921-68-2) with a purity by weight of 98% or more Free6%
  14. 2918 99 90 50 Methyl 3.4,5-trimethoxybenzoate (cas rn 1916-07-0) Free6%
  15. 2918 99 90 58 2.4-d (iso) (cas rn 94-75-7) with a purity by weight of 98% or more Free6%
  16. 2918 99 90 60 3.4,5-trimethoxybenzoic acid (cas rn 118-41-2) Free6%
  17. 2918 99 90 63 2-methyl-3-phenyloxirane-2-carboxylic acid (bmk glycidic acid) cas no. 25547-51-7 Free6%
  18. 2918 99 90 67 Allyl-(3-methylbutoxy)acetate (cas rn 67634-00-8) with a purity by weight of 95% or more Free6%
  19. 2918 99 90 73 Methyl (2r)-2-(4-hydroxyphenoxy)propionate (cas rn 96562-58-2) with a purity by weight of 97% or more Free6%
  20. 2918 99 90 78 3.4-epoxycyclohexylmethyl-3',4'-epoxycyclohexane carboxylate (cas rn 2386-87-0) with a purity by weight of 91% or more Free6%
  21. 2918 99 90 85 Trinexapac-ethyl (iso) (cas rn 95266-40-3) with a purity by weight of 96% or more Free6%
  22. 2918 99 90 90 Other Free

Additional duties and import rulesBarbados

Charges on top of the customs duty, and rules the goods must meet at the border.

Additional duties and charges 2

  • Duty suspensionSuspension - goods for certain categories of ships, boats and other vessels and for drilling or production platforms Free
    Applies to goods from
    all countries
    Legal act
    2020 No. 1431
    Documents
    • C990 End use authorisation ships and platforms (Column 8c, Annex A of Delegated Regulation (EU) 2015/2446)
  • Duty suspensionAutonomous tariff suspension Free
    Applies to goods from
    all countries
    In force
    until 31 December 2028
    Legal act
    2020 No. 1435
    Documents
    Tariff lines
    on 15 of 20 lines

Import requirements 2

  • Import controlHome Office pre-cursor chemical authorisation
    Applies to goods from
    all countries
    Legal act
    2004 No. 273
    Documents
    Tariff lines
    on 2 of 20 lines
  • Import controlHome Office Pre-cursor chemicals
    Applies to goods from
    all countries
    Legal act
    2004 No. 273
    Documents
    Tariff lines
    on 2 of 20 lines

UK: imports by month

last 12 months£45.2m-7.3% · previous 12 months
Average import price£3.56 per kg
Jan 2024: £4.2mFeb 2024: £6.7mMar 2024: £4.4mApr 2024: £4.5mMay 2024: £1.6mJun 2024: £4.8mJul 2024: £3.7mAug 2024: £3.2mSept 2024: £2.9mOct 2024: £5.7mNov 2024: £2.2mDec 2024: £1.5mJan 2025: £3.1mFeb 2025: £6.2mMar 2025: £5.5mApr 2025: £6mMay 2025: £3.4mJun 2025: £5mJul 2025: £3.8mAug 2025: £3.5mSept 2025: £4.2mOct 2025: £3.9mNov 2025: £3.4mDec 2025: £5.9mJan 2026: £3.6mFeb 2026: £3.4mMar 2026: £4.9mApr 2026: £4.1mMay 2026: £2.8mJun 2026: £3.2mJul 2026: £3.5mAug 2026: £2.5m 202420252026
Data up to August 2026 (provisional) · Monthly data: Eurostat Comext (CC BY 4.0), HMRC (OGL v3.0)

Main suppliers, last 12 months

CountryValueShareChange
Germany £34.2m 75.6% -16.4%
China £5.8m 12.7% +42.2%
India £2.4m 5.2% +342.3%
Japan £1.1m 2.3% -23.1%
United States £1m 2.3% -3.6%
France £446k 1% +129.7%
Hungary £116k 0.3% +34.6%
Poland £60k 0.1% +152.3%

Same subheading in other tariffs

EU Free – 6.5% Third-country duty 2 tariff lines · average 3.3% Türkiye Free – 6.5% Third-country duty 6 tariff lines · average 5.4% USA Free – 6.5% General (MFN) 10 tariff lines · average 4.9%

World trade in 2024

2918.99 · US$1.6bn

Trade value (US$) no reported trade < US$276kUS$276k+US$5.9m+US$40.9m+> US$118.1m

Exports: 84
  1. China: US$621.1m
  2. India: US$411.4m
  3. Germany: US$118.1m
  4. Switzerland: US$65.4m
  5. United States: US$59m
  6. United Kingdom: US$46.1m
  7. France: US$41.4m
  8. Japan: US$40.9m
  9. Mexico: US$38.3m
  10. Italy: US$34.9m
  11. South Korea: US$25.3m
  12. Austria: US$20.6m
  13. Netherlands: US$15m
  14. Spain: US$14.1m
  15. Argentina: US$13.4m
  16. Colombia: US$12.6m
  17. Belgium: US$11.6m
  18. Poland: US$10.9m
  19. Croatia: US$6m
  20. Hungary: US$5.9m
  21. Czechia: US$4.8m
  22. Taiwan: US$3.6m
  23. Singapore: US$3.5m
  24. Slovenia: US$1.9m
  25. Australia: US$1.7m
  26. Thailand: US$1.6m
  27. New Zealand: US$1.5m
  28. Russia: US$1.1m
  29. Türkiye: US$1m
  30. Serbia: US$728.4k
  31. Israel: US$617.3k
  32. Canada: US$590.4k
  33. Hong Kong SAR China: US$470.5k
  34. Ukraine: US$461.7k
  35. Greece: US$409.2k
  36. Bulgaria: US$370.5k
  37. Latvia: US$370.5k
  38. Estonia: US$346.3k
  39. Ireland: US$344.1k
  40. Denmark: US$276k
  41. Malaysia: US$251.8k
  42. South Africa: US$211.1k
  43. Portugal: US$175.9k
  44. Brazil: US$165.1k
  45. Slovakia: US$153k
  46. United Arab Emirates: US$87k
  47. Romania: US$82.2k
  48. Belize: US$74.8k
  49. Armenia: US$72.3k
  50. Morocco: US$69.4k
  51. Guatemala: US$66.6k
  52. Sweden: US$56.3k
  53. Chile: US$54k
  54. Philippines: US$48k
  55. Lithuania: US$42.3k
  56. Tunisia: US$37.6k
  57. Kenya: US$30k
  58. Uruguay: US$25.5k
  59. Finland: US$15.2k
  60. Indonesia: US$14.9k

Top exporters

RankCountryValueShare
1 China US$621.1m 37.9%
2 India US$411.4m 25.1%
3 Germany US$118.1m 7.2%
4 Switzerland US$65.4m 4%
5 United States US$59m 3.6%
6 United Kingdom US$46.1m 2.8%
7 France US$41.4m 2.5%
8 Japan US$40.9m 2.5%
9 Mexico US$38.3m 2.3%
10 Italy US$34.9m 2.1%

Top importers

RankCountryValueShare
1 United States US$397.8m 24.3%
2 Brazil US$95.9m 5.8%
3 Argentina US$87.6m 5.3%
4 Singapore US$73m 4.5%
5 India US$72.4m 4.4%
6 Japan US$62.9m 3.8%
7 Switzerland US$60m 3.7%
8 France US$57.4m 3.5%
9 Italy US$56.9m 3.5%
10 United Kingdom US$56.8m 3.5%

Binding rulings for similar goods 5

Decisions of U.S. Customs and Border Protection (CROSS) and HMRC (Advance Tariff Rulings) on goods classified here. A ruling binds only its holder, but shows how the authorities classify similar goods. The descriptions are the authorities’ own, in English.

  • N334037 U.S. CBP 20 July 2023 · 2918.99.50.00

    The tariff classification of 3,4-Epoxycyclohexylmethyl-3',4'-Epoxycyclohexane Carboxylate, (CAS No. 2386-87-0) from China

  • N331675 U.S. CBP 18 April 2023 · 2918.99.50.00

    The tariff classification of 3,4-Epoxycyclohexylmethyl Methacrylate (CAS # 82428-30-6) from China

  • N311071 U.S. CBP 17 April 2020 · 2918.99.50.00

    The tariff classification of Methyl 3,3-dimethoxypropanoate, (CAS 7424-91-1) from China

  • N302749 U.S. CBP 22 February 2019 · 2918.99.50.00

    The tariff classification of 2-(Methacryloxy) ethyl acetoacetate (CAS #21282-97-3) from India

  • N297953 U.S. CBP 6 July 2018 · 2918.99.50.00

    The tariff classification of various chemical compounds in bulk form, from China

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.

  1. US Tariff change

    Guidance and Procedures for Implementing Tariff Adjustments for Specialty Pharmaceuticals and Associated Pharmaceutical Ingredients and Technical Corrections to the Harmonized Tariff Schedule of the United States for Duties Imposed Under Proclamation 11020

    FR Doc. 2026-19498 · 91 FR 60360 · Source: federalregister.gov

  2. US Import and export controls

    Notice of Action: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation

    FR Doc. 2026-14542 · 91 FR 45516 · Source: federalregister.gov

  3. US Tariff change · Applies from:

    Harmonized Tariff Schedule of the United States — 2026 HTS Revision 11

    2026HTSRev11 · Source: hts.usitc.gov

  4. US Tariff change

    Notice of Determination and Request for Comments Concerning Action Pursuant to Section 301: Brazil's Acts, Policies, and Practices Related to Digital Trade and Electronic Payment Services; Unfair, Preferential Tariffs; Anti-Corruption Enforcement; Intellectual Property Protection; Ethanol Market Access; and Illegal Deforestation

    FR Doc. 2026-11158 · 91 FR 33854 · Source: federalregister.gov

  5. GB Sanctions · Applies from:

    The Russia (Sanctions) (EU Exit) (Amendment) Regulations 2026

    S.I. 2026/543 · Source: legislation.gov.uk

  6. GB Tariff change

    Update to Autonomous Suspension Coverage Stop Press – 27 January 2026

    Trade Tariff news 4354 · Source: trade-tariff.service.gov.uk

  7. GB Other

    Update to MFN Rates added to End-of-Year Commodity Codes – 6 January 2026

    Trade Tariff news 3859 · Source: trade-tariff.service.gov.uk

Rule changes →

The UK Global Tariff divides subheading 2918.99 into 20 tariff lines; the duty is between 0% and 6% (average 5.4%). 2 of them are duty-free.

In the EU Combined Nomenclature, subheading 2918.99 covers 2 tariff lines and the duty is between 0% and 6.5%. 1 of them is duty-free.

174 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 Free – 6%.

In the UK, additional duty of 35% applies on top of the customs duty to goods from Belarus and Russia.

Imports of other oxygen-function carboxylic acids into the UK came to £45.2m between September 2025 and August 2026 (down 7% on the year before); Germany supplied 76%, followed by China.

In 2024, countries exported other oxygen-function carboxylic acids worth US$1.6bn (−1.2% year on year).

The largest exporter was China (US$621.1m), followed by India.

Questions and answers

What is the HS code for carboxylic acids with additional oxygen function and their: other, other?

Carboxylic acids with additional oxygen function and their: other, other fall under HS subheading 2918.99, part of heading 2918, in section VI of the Harmonized System.

What is the import duty on carboxylic acids with additional oxygen function… in the UK?

Under the UK Global Tariff, imports under 2918.99 from countries without a preferential agreement are charged at 0% to 6%, depending on the line. Preferential rates, anti-dumping duties and VAT are not included.

What is the import duty on carboxylic acids with additional oxygen function… in the EU?

Under the EU Combined Nomenclature, imports under 2918.99 from countries without a preferential agreement are charged at 0% to 6.5%, depending on the line. Preferential rates, anti-dumping duties and VAT are not included.

Which country exports the most carboxylic acids with additional oxygen function…?

China, with US$621.1m in 2024 (37.9% of world exports).

Which countries can export other oxygen-function carboxylic acids to the UK duty-free?

174 countries pay no duty under a trade agreement or preference scheme, among them partners under DCTS Comprehensive, European Union, DCTS Enhanced. The goods must meet the agreement’s rules of origin and the importer needs proof of origin; otherwise the standard rate of Free – 6% applies. Pick a country above to see its rate.

Is there anti-dumping duty on other oxygen-function carboxylic acids?

The UK charges additional duty of 35% on goods from Belarus and Russia. Lower rates apply to the named exporters listed in the measure.

Where does the UK import other oxygen-function carboxylic acids from?

In the 12 months to August 2026, the largest suppliers were Germany (76%), China (13%) and India (5%), out of total imports of £45.2m.

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