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HSChapter 85
U.S. imports of electrical insulators of ceramics (HS 854620) totaled $17.2M in April 2026, traded with 31 countries.
Importers of Electrical Insulators of Ceramics paid $3.8M in duties in April 2026 — an effective duty rate of 26% on $14.7M in dutiable value, based on actual customs collections rather than the published tariff schedule. Electrical Insulators of Ceramics imports of $17.2M in April 2026 ran 21% above the year-to-date monthly average of $14.2M.
Last updated: April 2026 dataCeramic electrical insulators — encompassing porcelain pin-type, line-post, and high-voltage suspension types — are foundational components of transmission and distribution infrastructure worldwide. The US tariff schedule subdivides this heading by application: suspension/pin-type or line-post insulators (8546200030), high-voltage low-frequency ceramic insulators not elsewhere specified (8546200060), and all other ceramic insulators (8546200090). China and India are the dominant import sources, together accounting for the bulk of US supply; Brazil and Slovakia round out the supplier base. Section 301 tariffs apply to Chinese-origin ceramic insulators, a factor that has accelerated utility procurement diversification toward India and other suppliers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
Subheading 8546200030 covers suspension, pin-type, and line-post insulators — the most common distribution and transmission line types. Subheading 8546200060 captures high-voltage, low-frequency ceramic insulators that do not fit the pin/line-post description, such as certain station post or apparatus insulators. The NESOI line (8546200090) covers remaining ceramic insulators not meeting either prior description. Correct classification requires matching the insulator's design and voltage rating to the subheading definitions.
Because Chinese-origin ceramic insulators are subject to Section 301 tariffs, many US utilities and electrical contractors have shifted procurement toward India, which has expanded its ceramic insulator manufacturing capacity significantly. Importers should evaluate total landed cost — including Section 301 exposure — when comparing Chinese and Indian suppliers, and should verify origin documentation carefully given the complexity of ceramic component supply chains.
Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8546200090 | ELECTRICAL INSULATORS, CERAMIC, NESOI | $7.3M | 30.47% | $1.5M |
| 8546200030 | ELECTRICAL INSULATORS, SPSSN,PIN-TYPE OR LINE POST | $6.1M | 24.28% | $1.5M |
| 8546200060 | ELECTRICAL INSULATORS, CERAMIC, HGH-V, L-FY, NESOI | $3.8M | 21.84% | $825K |
ELECTRICAL INSULATORS, CERAMIC, NESOI
ELECTRICAL INSULATORS, SPSSN,PIN-TYPE OR LINE POST
ELECTRICAL INSULATORS, CERAMIC, HGH-V, L-FY, NESOI
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8546200090 | ELECTRICAL INSULATORS, CERAMIC, NESOI | $3.8M |
| 8546200060 | ELECTRICAL INSULATORS, CERAMIC, HGH-V, L-FY, NESOI | $493K |
| 8546200030 | ELECTRICAL INSULATORS, SPSSN,PIN-TYPE OR LINE POST | $339K |
ELECTRICAL INSULATORS, CERAMIC, NESOI
1.3M no
ELECTRICAL INSULATORS, CERAMIC, HGH-V, L-FY, NESOI
307.4K no
ELECTRICAL INSULATORS, SPSSN,PIN-TYPE OR LINE POST
20.4K no
MACH FOR RECP/CONVR/TRANS/REGN OF VOICE/IMAGE/DATA
HS 851762
SOLID-STATE NON-VOL SEMICONDUCTOR STORAGE DEVICES
HS 852351
SMARTPHONES
HS 851713
PROCESSORS AND CONTROLLERS, ELECTRONIC INTEG CIRCT
HS 854231
CONTROLS ETC W ELECT APPR F ELECT CONT NOV 1000 V
HS 853710
STATIC CONVERTERS; ADP POWER SUPPLIES
HS 850440
Supplier Network
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| State | Imports | Exports | Balance |
|---|---|---|---|
| Georgia | $3.8M | -- | -$3.8M |
| Virginia | $2.0M | -- | -$2.0M |
| California | $1.7M | $65K | -$1.7M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| SAVANNAH, GA | $3.6M | -- | -$3.6M |
| NORFOLK-NEWPORT NEWS, VA | $2.1M | -- | -$2.1M |
| HOUSTON, TX | $1.8M | -- | -$1.8M |