Automatic regulating or controlling instruments and apparatus, thermostats (HS 903210)
Automatic regulating or controlling instruments and apparatus, thermostats (HS 903210) has 10,881 U.S. import bill-of-lading shipment records between Mar 2018 and Jul 2026. The largest U.S. importer of Automatic regulating or controlling instruments and apparatus, thermostats is ADEMCO INC, with 350 shipments, followed by JOHNSON CONTROLS INC and ROBERTSHAW CONTROLS COMPANY. The leading supplier is NIPPON THERMOSTAT CO LTD, with 443 shipments, followed by COMPUTIME LIMITED and DANFOSS INDUSTRIES SA DE CV. Goods originate mainly from CHINA and GERMANY, arriving primarily at LOS ANGELES, CA. Import volume has risen over the past 12 months versus the prior year.
Sourced from U.S. Customs bill of lading data · Updated monthly · Data through July 2026
Shipments over time (last 24 months)
Trade flow: top suppliers → U.S. importers
The strongest supplier-importer relationships for Automatic regulating or controlling instruments and apparatus, thermostats (HS 903210), by shipment volume. Hover a ribbon for details; click a name to open its profile.
The largest relationship is NIPPON THERMOSTAT CO LTD → NORTH POLE STAR S DE R L DE C V with 142 shipments, followed by NIPPON THERMOSTAT CO LTD → DMAX LTD (110) and COMPUTIME LIMITED → TRANE U S INC (103).
Top U.S. importers
| Importer | Shipments |
|---|---|
| ADEMCO INC | 350 |
| JOHNSON CONTROLS INC | 159 |
| ROBERTSHAW CONTROLS COMPANY | 148 |
| NORTH POLE STAR S DE R L DE C V | 144 |
| JOHNDOW INDUSTRIES | 134 |
Top suppliers
| Supplier | Shipments |
|---|---|
| NIPPON THERMOSTAT CO LTD | 443 |
| COMPUTIME LIMITED | 269 |
| DANFOSS INDUSTRIES SA DE CV | 240 |
| SEVECO GLOBAL LTD | 226 |
| ESSEN TECH CO LTD | 222 |
Origin countries
| Country | Shipments |
|---|---|
| CHINA | 4,401 |
| GERMANY | 704 |
| REPUBLIC OF KOREA | 677 |
| MALAYSIA | 607 |
| MEXICO | 562 |
| JAPAN | 559 |
| ITALY | 442 |
| HONG KONG | 400 |
| BELGIUM | 274 |
| SINGAPORE | 233 |
Ports of unlading
| U.S. port | Shipments |
|---|---|
| LOS ANGELES, CA | 2,527 |
| NEW YORK/NEWARK AREA, NEWARK, NJ | 2,148 |
| LONG BEACH, CA | 2,100 |
| HOUSTON, TX | 913 |
| TACOMA, WA | 590 |
| SAVANNAH, GA | 367 |
| CHARLESTON, SC | 362 |
| SEATTLE, WA | 353 |
| NORFOLK, VA | 325 |
| MIAMI, FL | 307 |
Harmonized System classification
HS code 903210 — Automatic regulating or controlling instruments and apparatus, thermostats. The Harmonized System is the international standard for classifying traded goods; U.S. Customs records this 6-digit code on every bill of lading.
Not sure this is the right code? Search all 5,700+ subheadings with the free HS code lookup, or see which product categories are growing in our quarterly State of U.S. Imports reports.
Frequently asked questions about importing Automatic regulating or controlling instruments and apparatus, thermostats
Who imports Automatic regulating or controlling instruments and apparatus, thermostats (HS 903210)?
Based on U.S. Customs bill-of-lading records, the top U.S. importers of Automatic regulating or controlling instruments and apparatus, thermostats include ADEMCO INC, JOHNSON CONTROLS INC, ROBERTSHAW CONTROLS COMPANY, NORTH POLE STAR S DE R L DE C V, and JOHNDOW INDUSTRIES.
Who is the largest U.S. importer of Automatic regulating or controlling instruments and apparatus, thermostats?
ADEMCO INC is the largest U.S. importer of Automatic regulating or controlling instruments and apparatus, thermostats (HS 903210), with 350 bill-of-lading shipment records.
Who are the top suppliers of Automatic regulating or controlling instruments and apparatus, thermostats?
Leading suppliers shipping Automatic regulating or controlling instruments and apparatus, thermostats (HS 903210) to the U.S. include NIPPON THERMOSTAT CO LTD, COMPUTIME LIMITED, DANFOSS INDUSTRIES SA DE CV, SEVECO GLOBAL LTD, and ESSEN TECH CO LTD.
How many U.S. shipments of Automatic regulating or controlling instruments and apparatus, thermostats are there?
ImportDoor has 10,881 U.S. import shipment records under HS code 903210, spanning Mar 2018 to Jul 2026.
Where is Automatic regulating or controlling instruments and apparatus, thermostats imported from?
Automatic regulating or controlling instruments and apparatus, thermostats is imported into the U.S. primarily from CHINA, GERMANY, and REPUBLIC OF KOREA.
Find Automatic regulating or controlling instruments and apparatus, thermostats importers & suppliers
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