Carboxymethyl Cellulose (CMC) Flakes
Sodium salt of carboxymethyl cellulose in flake form for industrial thickeners and stabilizers. HTS 3912.90.00 covers this as other cellulose derivatives not specifically named.
Import Duty Rates by Country of Origin
More Specific Codes
This product may fall under a more specific subheading:
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If meeting exact criteria for named cellulose ethers
Chapter notes require 95% monomer content for specific polymer subheadings.
If processed into dextrins or modified starches
Further hydrolysis products classify under starch derivatives.
If prepared as glues/adhesives
Adhesive preparations containing cellulose shift to 3824.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Document substitution degree (DS) to distinguish from specific ether subheadings
• Label clearly as primary form to prevent reclassification as finished articles
• Check REACH compliance for EU-origin derivatives
Related Products under HTS 3912.90.00
Cellophane Film
Regenerated cellulose film used for packaging, such as food wrapping and cigarette packaging. It falls under HTS 3912.90.00 as a cellulose derivative in primary form, not elsewhere specified, derived from viscose process.
Microcrystalline Cellulose Powder
Powdered cellulose derivative used as excipient in pharmaceuticals and food thickener. Classified in HTS 3912.90.00 as other cellulose chemical derivatives in primary forms like powder.
Hydroxypropyl Cellulose Granules
Granular cellulose ether used in pharmaceuticals and coatings. Falls under 3912.90.00 as other primary form cellulose derivatives.
Viscose Staple Pulp
Dissolving pulp from cellulose for rayon fiber production. Classified as other cellulose derivatives in primary form under HTS 3912.90.00.
Methylcellulose Powder
Powdered methyl ether of cellulose for food and pharma applications. HTS 3912.90.00 as other cellulose chemical derivatives.
Cellulose Acetate Flake
Primary flake form of cellulose acetate for plastics and fibers. Other category under 3912.90.00 for unspecified derivatives.