HS code · 6-digit international subheading
HS Code 903210
Thermostats, HS 9032.10.
Official description: Automatic regulating or controlling instruments and apparatus: Thermostats
Where to check the import duty for HS 903210
The first 6 digits are the same everywhere. Duty and VAT or GST are set by your country, on the full national tariff line with China as the country of origin. Each link below opens the official source at 903210, its heading or its chapter where the site allows it.
How to read United States
The search runs on 9032.10 and lists the US lines under it. Your rate depends on the full 10-digit HTS line, and Section 301 surcharges for China origin sit on top of the base rate.
Then look up the full national code with China as the country of origin, and note the date you checked.
Deep link, with the code as a parameter
https://hts.usitc.gov/search?query=9032.10
Rates are only shown where our data names its source and date. Everything else says check the official source. Duty, VAT and GST rates change, so confirm them before you price a product.
Short answer
What HS code 903210 means for your import
HS code 903210 is the 6-digit HS 2022 starting point for thermostats; often searched as temperature controller, thermoregulator, HVAC thermostat. Before you use it in a landed-cost estimate, check the product's material and function against the official tariff of your country. A code from a supplier is a clue. It is not the final import classification.
- UseStart with this 6-digit HS code and compare the product's material, function, and use.
- VerifyCheck the destination market's official HTS, TARIC, commodity-code, duty, VAT, or GST source.
- DecideIf the code or the documents are unclear, ask us for a free quote. We suggest the likely code and price the duty in.
Covered products
What products fall under HS code 903210?
Buyers often describe products under HS 903210 in these ways. If your product matches, 903210 is a likely 6-digit starting point. Confirm the material and intended use against the official tariff.
- thermostat
- temperature controller
- thermoregulator
- HVAC thermostat
- programmable thermostat
- room thermostat
US import duty · China origin
US import duty for HS 903210
Published USITC HTS rates for HS 903210. This is a research estimate. Confirm your full 10-digit HTS line before you price a product.
Source: USITC HTS (base MFN) and Section 301 overlay · data as of 2026-07-05. Rates change with trade actions. Confirm your full 10-digit line on hts.usitc.gov before you price a product. Sources for other markets are above.
Explore Optical, photographic, measuring, medical or surgical instruments
Same chapter, other headings. Chapter 90 covers optical, photographic, measuring, medical or surgical instruments.
- 9021.21Artificial teeth
- 9023.00Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other uses
- 9025.19Thermometers and pyrometers, not combined with other instruments
- 9026.10For measuring or checking the flow or level of liquids
- 9029.20Speed indicators and tachometers; stroboscopes
- 9031.49Optical comparator
HS code 903210: common questions
What is the US import duty for HS code 903210 from China?
As published in the USITC HTS (data as of 2026-07-05), the base MFN rate for 903210 is about 1.7%. Section 301 adds +25% for China-origin goods, so the combined rate is roughly 26.7%. This is a research estimate. Check your full 10-digit HTS line on hts.usitc.gov.
What is HS code 903210?
HS code 903210 is the World Customs Organization 6-digit HS 2022 subheading for "Automatic regulating or controlling instruments and apparatus: Thermostats". The first two digits (90) are the chapter: Optical, photographic, measuring, medical or surgical instruments. Digits 3-4 (9032) are the heading. Countries add more digits for their national tariff line, for example 10 digits in the US HTS.
What products fall under HS 903210?
Common products classified under 903210 include thermostat, temperature controller, thermoregulator, HVAC thermostat, programmable thermostat, room thermostat and similar items. The correct code still depends on the product's material, function and intended use.
How do I find the import duty for HS code 903210?
Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market. The links on this page open USITC HTS (US) and TARIC (EU) at 903210, the UK Trade Tariff at heading 9032 and the Australian tariff at chapter 90. Then look up the full national code with China as the country of origin.
Is HS code 903210 the same in every country?
The first 6 digits (903210) are the same worldwide under the WCO Harmonized System. Beyond that, each country extends the code (HTS in the US, TARIC in the EU, etc.) and sets its own duty and tax rates.
Can I trust the HS code a Chinese supplier gives me?
Treat it as a clue. Supplier codes are often China export codes, and they can be incomplete or wrong for your country. Check it against the official tariff and your product's real material and use.
Is HSN code 903210 the same as HS code 903210?
Yes at the 6-digit level. India's HSN (Harmonized System of Nomenclature) uses the same WCO base, so HSN 903210 covers the same products as HS 903210. India then extends it to 8 digits for GST and customs. Check the Indian Customs tariff (CBIC) for the full national line.
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