Loading...
HSChapter 83
U.S. imports of base metal fittings for looseleaf binders or files (HS 830510) totaled $463K in April 2026, traded with 4 countries.
Last updated: April 2026 dataRing binder mechanisms and other looseleaf fittings of base metal are a core input for the stationery and office-products manufacturing sector, and the US tariff schedule distinguishes ring binder mechanisms (8305100010) from other looseleaf fittings (8305100050), a split that matters for duty and Section 301 exposure on Chinese-origin goods. China is the dominant supplier, with South Korea and Hungary as notable secondary sources. Importers should verify whether finished binder assemblies versus bare mechanisms are being imported, as the classification boundary can affect both duty rate and admissibility.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
HTS 8305100010 covers ring binder mechanisms specifically — the metal spine-and-ring assemblies that open and close to hold looseleaf pages. HTS 8305100050 covers other fittings for looseleaf binders and files not elsewhere specified, such as prong fasteners or spine clips. Correct classification depends on the mechanism's design and function.
The United States does not have a free trade agreement with the European Union, so Hungarian-origin binder fittings do not benefit from preferential duty rates. Normal trade relations (NTR/MFN) rates apply, and importers should confirm the applicable column 1 rate with a customs broker.
| Country | Imports | Exports | Balance |
|---|---|---|---|
| CHINA | $371K | -- | -$371K |
| KOREA, SOUTH | $92K | -- | -$92K |
| CANADA | -- | $30K | +$30K |
| SPAIN | -- | $10K | +$10K |
| CHILE | -- | $7K | +$7K |
Monthly import values over time
Supplier Network
Get discovered by U.S. importers searching for HS 830510 — Base Metal Fittings for Looseleaf Binders or Files. Be the first supplier listed.