HS Code for Cellulose ether

Cellulose ethers are classified under HS code 3912.39. This classification is located within Chapter 39, which encompasses plastics and plastic-based materials. Heading 3912 is dedicated to cellulose and its chemical derivatives in primary forms. Within this heading, the 3912.3x series specifically covers cellulose ethers. While 3912.31 is reserved for carboxymethylcellulose (CMC) and its salts, 3912.39 is the residual subheading for all other cellulose ethers. Cellulose ethers are polymers where the hydrogen atoms of the hydroxyl groups in the cellulose chain are replaced by alkyl or substituted alkyl groups. Common examples include methylcellulose, ethylcellulose, and hydroxypropyl methylcellulose (HPMC). To be classified under 3912.39, the product must be in a primary form, such as a powder or granule, as defined by Chapter 39 Note 6. The classification is determined by the chemical structure of the ether group. These substances are widely utilized as rheology modifiers, water-retention agents, and binders in various industries, including construction, food processing, and pharmaceuticals. Misclassification often occurs when these ethers are mixed with other substances, potentially moving them to Chapter 38 as prepared binders or additives.

Products Included

• Methylcellulose in primary forms
• Ethylcellulose in primary forms
• Hydroxypropyl methylcellulose (HPMC)
• Hydroxyethyl cellulose (HEC)

Common Misclassification

The most frequent misclassification occurs with HS code 3912.31, which is exclusively for carboxymethylcellulose (CMC). Importers must distinguish between CMC and other ethers like HPMC or MC. Another common error is classification under 3912.90, which is for other cellulose derivatives (esters), whereas 3912.39 is specific to ethers. Additionally, if the cellulose ether is part of a prepared mixture (like a ready-to-use tile adhesive), it may be classified under 3824.50 or 3214.10 depending on the composition and intended use.

FAQ

What is the HS code for cellulose ether?

The HS code for cellulose ethers (excluding carboxymethylcellulose) in primary forms is 3912.39.

Is hydroxypropyl methylcellulose (HPMC) classified here?

Yes, HPMC is a cellulose ether and is classified under HS code 3912.39 as it is not carboxymethylcellulose.