About HS Code 290435
This HS code serves as a residual category for salts of Perfluorooctane Sulphonic Acid (PFOS) not specifically enumerated in other subheadings under 2904. This includes various other metallic or organic salts of PFOS beyond ammonium, lithium, and potassium. Historically, these "not elsewhere specified" PFOS salts would have been used in similar applications to their more common counterparts, leveraging their surfactant properties for water and oil repellency in textiles, paper, fire-fighting foams, and metal plating. However, like all PFOS derivatives, these compounds are now subject to stringent international regulations, including bans and restrictions under the Stockholm Convention, due to their environmental persistence, bioaccumulation, and potential toxicity. Consequently, global trade in these miscellaneous PFOS salts is extremely limited, primarily confined to specific, critically exempted uses or for the management of existing stockpiles. Importers and exporters must adhere to strict international chemical control regulations and provide thorough documentation for any permitted transactions.
Products Under This Code
Sodium perfluorooctane sulfonate, Calcium perfluorooctane sulfonate, Magnesium perfluorooctane sulfonate, Zinc perfluorooctane sulfonate, Organic amine salts of PFOS
Real World Examples
3M (historical producer), Chemours (fluorochemicals, but PFOS salts largely restricted), Daikin (fluorochemicals, but PFOS salts largely restricted)
Common Misclassification
This "n.e.c." code is specifically for PFOS salts not covered by 290432, 290433, or 290434; misclassification could occur if a specific PFOS salt is incorrectly placed here instead of its dedicated subheading, or if other PFAS compounds are mistakenly included.
Products Classified Under 2904.35
Industry
This code belongs to the Chemicals industry.
Trade Overview
Global trade is highly restricted, with limited imports/exports primarily for specific exempted uses or existing stock management, often involving countries like China and EU member states under strict regulations.
Frequently Asked Questions
What is HS code 290435?
HS code 290435 covers: Derivatives of hydrocarbons; salts of perfluorooctane sulphonic acid n.e.c in heading no. 2904, whether or not halogenated. This HS code serves as a residual category for salts of Perfluorooctane Sulphonic Acid (PFOS) not specifically enumerated in other subheadings under 2904. This includes various other metallic or organic salts of PFOS beyond ammonium, lithium, and potassium. Historically, these "not elsewhere specified" PFOS salts would have been used in similar applications to their more common counterparts, leveraging their surfactant properties for water and oil repellency in textiles, paper, fire-fighting foams, and metal plating. However, like all PFOS derivatives, these compounds are now subject to stringent international regulations, including bans and restrictions under the Stockholm Convention, due to their environmental persistence, bioaccumulation, and potential toxicity. Consequently, global trade in these miscellaneous PFOS salts is extremely limited, primarily confined to specific, critically exempted uses or for the management of existing stockpiles. Importers and exporters must adhere to strict international chemical control regulations and provide thorough documentation for any permitted transactions.
What products fall under HS code 290435?
Sodium perfluorooctane sulfonate, Calcium perfluorooctane sulfonate, Magnesium perfluorooctane sulfonate, Zinc perfluorooctane sulfonate, Organic amine salts of PFOS
What are common misclassifications for HS code 290435?
This "n.e.c." code is specifically for PFOS salts not covered by 290432, 290433, or 290434; misclassification could occur if a specific PFOS salt is incorrectly placed here instead of its dedicated subheading, or if other PFAS compounds are mistakenly included.
How is HS code 290435 structured?
HS code 290435 is a 6-digit subheading under the Harmonized System. The first 2 digits (29) identify the chapter, digits 3-4 (04) identify the heading, and digits 5-6 (35) specify the subheading. This code is standardized globally by the World Customs Organization.