U.S. exports of machines for making optical fibers and preforms (HS 847521) totaled $3.1M in August 2026, exported to 6 countries.
Last updated: August 2026 dataOptical fiber drawing towers and preform fabrication equipment — critical capital goods for the telecommunications and data-center infrastructure industries — are classified under a single tariff line, 8475210000. Japan leads US imports of this highly specialized equipment, reflecting the dominant role of Japanese precision-engineering firms in fiber draw technology. France and the United Kingdom are also notable sources, consistent with the European presence in preform chemical vapor deposition systems. Given the high unit values and long lead times typical of this equipment, importers often coordinate closely with suppliers on installation scheduling and spare-parts provisioning.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Both are captured within 8475210000 because the heading explicitly covers machines for making optical fibers and preforms thereof. The distinction matters commercially — preform machines (typically using chemical vapor deposition) and drawing towers are separate capital investments — but both fall under the same 10-digit HTS line. Confirm with CBP if a machine performs both functions in an integrated system.
No Section 232 or Section 301 measures are currently applied to optical fiber manufacturing equipment from the leading supplier countries (Japan, France, United Kingdom). Importers should nonetheless verify the current status of any applicable trade actions at the time of entry, as trade-remedy coverage can change.
HSChapter 84
Subheading 2 of 4 in heading 8475
Subheading 847521 · $3.1M of $31.5M
ImportsExports
Imports
—YoY · free account
Exports
$3.1MYoY · free account
12-mo low · imports
YoY · free accountOver the twelve months to August 2026, the U.S. imported $10.5M of Machines for Making Optical Fibers and Preforms.
Through August 2026. Source: U.S. Census Bureau.
Trade Directory
List your company under HS 847521 — Machines for Making Optical Fibers and Preforms, so the companies trading it can find you. Be the first supplier listed.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Dutiable Share |
|---|---|---|---|---|
| 8475210000 | Mach for Making Optical Fibers & Preforms Thereof | — | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8475210000 | Mach for Making Optical Fibers & Preforms Thereof | $3.1M |
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.
Exports · August 2026
destination
Thailand and Peru together take 100% of it.
customs district
origin
entry
rate provision · imports
None recorded for this period.