HS Code 850640
Silver oxide
Official description: Primary cells and primary batteries : Silver oxide
Also searched as: silver oxide battery, silver battery, button cell battery, watch battery, coin cell
Classification
How 850640 breaks down
Electrical machinery and equipment; sound and TV recorders and reproducers
Primary cells and primary batteries
Silver oxide
Covered products
What products fall under HS code 850640?
Buyers sourcing silver oxide from 1688 commonly describe it in these ways. If your product matches, 850640 is likely the right 6-digit starting point — confirm material and intended use against the official tariff.
Import duty by market
Where to check the import duty for HS 850640
The 6-digit code is universal, but duty, VAT and GST are set by the destination country and depend on the full national tariff line with China as the country of origin. Start from the official source for your market.
United States
USITC / CBP · Harmonized Tariff Schedule (HTS)
European Union
TARIC · Access2Markets
United Kingdom
HMRC · UK Integrated Online Tariff
Canada
CBSA · Canadian Customs Tariff
Australia
ABF · Australian customs tariff
Singapore
Singapore Customs · Singapore Trade Classification (HS)
Compare the real China-origin import tax across markets
Use the HS & import duty checker to estimate duty + VAT/GST for 850640 by destination before you pay a 1688 supplier.
Heading 8506
Other HS codes under 8506
Subheadings in the same 4-digit heading — "Primary cells and primary batteries". If 850640 is not an exact match, one of these may classify your product more precisely.
Questions
HS code 850640: common questions
What is HS code 850640?
HS code 850640 is the World Customs Organization 6-digit HS 2022 subheading for "Primary cells and primary batteries : Silver oxide". The first two digits (85) are the chapter — Electrical machinery and equipment; sound and TV recorders and reproducers — and digits 3-4 (8506) are the heading. Countries add further digits (8-10) for their national tariff line.
What products fall under HS 850640?
Common products classified under 850640 include silver oxide battery, silver battery, button cell battery, watch battery, coin cell and similar items matching silver oxide. The correct code still depends on the product's material, function and intended use.
How do I find the import duty for HS code 850640?
Duty is set by the destination country, not by the 6-digit HS code alone. Start from the official tariff of your market — USITC HTS (US), TARIC / Access2Markets (EU), GOV.UK Trade Tariff (UK), CBSA (Canada), ABF (Australia) or Singapore Customs — and look up the full national code with China as the country of origin.
Is HS code 850640 the same in every country?
The first 6 digits (850640) 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 1688 supplier gives me?
Treat a supplier-provided code as a clue, not a final classification. It can be incomplete, China-export-specific, or mismatched to your destination's rules. Verify against the official tariff and your product's actual material and use.
Chapter 85
Explore Electrical machinery and equipment; sound and TV recorders and reproducers
Sourcing silver oxide from 1688?
Get a written pre-payment check — classification clues, China-origin landed cost, and supplier risk — before you commit. 5,754 HS codes covered.