Sao Tome and Principe HS Code

HS Code 391231: Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose ethers : Carboxymethylcellulose and its salts in Sao Tome and Principe

Q: Is HS code 391231 the same across all countries?

Yes — up to the 6-digit level, HS code 391231 is the same in every WCO member country. Beyond 6 digits, each country extends the code for national tariff and statistical use. Sao Tome and Principe extends it under HS-ST.

Q: What system does Sao Tome and Principe use to classify HS code 391231?

Sao Tome and Principe classifies products under the Pauta Aduaneira (HS-ST; locally Pauta Aduaneira), which extends HS codes to 8 digits. The first 6 digits align with the WCO Harmonized System, and the rest cover national tariff and statistical needs.

Q: Where can I officially look up HS code 391231 in Sao Tome and Principe?

The official source is https://www.alfandegas.gov.st/. For faster cross-country lookups, TradeInt's HS Code Tool consolidates classifications across all major countries in one place.

What is HS Code 391231 in Sao Tome and Principe

Under Sao Tome and Principe's Pauta Aduaneira (Pauta Aduaneira), HS Code 391231 is the WCO Harmonized System subheading for Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose ethers : Carboxymethylcellulose and its salts. This is the most detailed internationally standardized level; Sao Tome and Principe extends classifications to 8 digits under its national tariff system. 391231 belongs to Section VII: Plastics and articles thereof; rubber and articles thereof, Chapter 39: Plastics and articles thereof, Heading 3912: Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms.

Explore more 2026 Latest Sao Tome and Principe import export trade data and shipment records for HS Code Carboxymethyl Cellulose (CMC) on TradeInt global trade data platform

Classification Path of HS Code 391231 in Sao Tome and Principe

Section VII

Chapters (39-40) Plastics and articles thereof; rubber and articles thereof

Chapter 39

Plastics and articles thereof

HS Code 3912

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms

HS Code 391231

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose ethers : Carboxymethylcellulose and its salts

HS Code 39123100

Celulose e seus derivados químicos, não especificados nem compreendidos noutras posições, em formas primárias: Éteres de celulose: Carboximetilcelulose e seus sais

Sao Tome and Principe Tariff Classification: Pauta Aduaneira (HS-ST)

In Sao Tome and Principe, HS 391231 is classified under the Pauta Aduaneira (Pauta Aduaneira) — a 8-digit national extension of the WCO 6-digit Harmonized System.

Tariff schedule Pauta Aduaneira (HS-ST)

Local name Pauta Aduaneira

Digits 8

Official source https://www.alfandegas.gov.st/

You know what 391231 means. Now see 2026 latest real trade activity for Carboxymethyl Cellulose (CMC) in Sao Tome and Principe.

Buyers, suppliers, origin and destination countries, shipment dates, and quantities direct from customs records.

Search 2026 Latest Sao Tome and Principe Import Data Search 2026 Latest Sao Tome and Principe Export Data

Top Trading Product of HS Code 3912

Top Sao Tome and Principe import Product Under HS Code 3912

1 391211: Cellulose acetates : Nonplasticised $1.2K 2 391290: Other $157

Figures shown for 2023.

For more 2026 recent data, search for Sao Tome and Principe import trade records

Related HS Code to Sao Tome and Principe Carboxymethyl Cellulose (CMC) (391231)

HS Code 39123100

Celulose e seus derivados químicos, não especificados nem compreendidos noutras posições, em formas primárias: Éteres de celulose: Carboximetilcelulose e seus sais

HS Code 391211

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose acetates : Nonplasticised

HS Code 391212

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose acetates : Plasticised

HS Code 391220

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose nitrates (including collodions)

HS Code 391239

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose ethers : Other

HS Code 391290

Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Other

HS Code 390110

Polymers of ethylene, in primary forms : Polyethylene having a specific gravity of less than 0,94

HS Code 390120

Polymers of ethylene, in primary forms : Polyethylene having a specific gravity of 0,94 or more

HS Code 390130

Polymers of ethylene, in primary forms : Ethylenevinyl acetate copolymers

HS Code 390140

Polymers of ethylene, in primary forms : Ethylenealphaolefins copolymers, having a specific gravity of less than 0,94

Frequently Asked Questions

What is HS code 391231 in Sao Tome and Principe?

HS code 391231 covers Cellulose and its chemical derivatives, not elsewhere specified or included, in primary forms : Cellulose ethers : Carboxymethylcellulose and its salts in Sao Tome and Principe. It sits in Chapter 39 (Plastics and articles thereof), Heading 3912 of the Harmonized System, and is classified under HS-ST.

Is HS code 391231 the same across all countries?

What system does Sao Tome and Principe use to classify HS code 391231?

Where can I officially look up HS code 391231 in Sao Tome and Principe?