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Mercury-Containing Thermostat Switch Scrap

Electronic assemblies from old heating systems with embedded mercury-tilt switches for temperature control. Tariff item 8549.31.00 covers mercury-switches in electrical and electronic waste, and these are scrap assemblies with mercury-switches.

Import Duty Rates by Country of Origin

Origin CountryMFN TariffSurtaxesTotal Effective Rate
🇨🇳ChinaFree—Free
🇲🇽MexicoFree—Free
🇺🇸United StatesFree—Free
🇩🇪GermanyFree—Free
🇯🇵JapanFree—Free

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

8549.39.00Same rate: Free

If the mercury-switches are removed and the remaining assemblies contain no listed hazardous substances.

Assemblies without mercury-switches or other listed hazardous materials are classified elsewhere.

Not sure which classification is right?

The Tariff Assistant works through the GRI rules on your specific product to reach the right tariff item — and can price the duty on it in the same conversation.

Import Tips & Compliance

• Ensure the assemblies are rendered unusable and packaged as waste, not as functional goods

• Handle mercury-switches carefully to prevent breakage and mercury exposure

• Verify whether provincial hazardous waste rules apply to the import

Related Products under Tariff item 8549.31.00

Cadmium-Contaminated PCB Assemblies

Printed circuit boards from industrial electronics featuring cadmium-plated connectors and components. The presence of cadmium in these electrical or electronic components places this waste under tariff item 8549.31.00, which covers assemblies containing cadmium.

Cadmium Switchgear Electronic Scrap

Industrial electrical panels decommissioned from high-voltage switchgear, containing cadmium oxide contacts in circuit breakers. These cadmium-containing electrical components qualify this scrap for tariff item 8549.31.00, which covers electrical or electronic components containing cadmium.

CRT Monitor E-Waste with Activated Glass

Discarded cathode-ray tube computer monitors containing phosphor-coated activated glass from the picture tube. Tariff item 8549.31.00 explicitly covers glass from cathode-ray tubes or other activated glass, making this e-waste classifiable under this item.

Hazardous Mixed Electronics Shred

Shredded bulk e-waste from processing plants containing trace mercury switches, lead, and cadmium components. Tariff item 8549.31.00 covers mixed electrical and electronic assemblies containing these listed hazardous substances, making this shred classifiable under this item.

Lead-Acid Battery Scrap from UPS Systems

Used lead-acid electric accumulators recovered from uninterruptible power supply units, containing lead plates and electrolyte. Tariff item 8549.31.00 covers electrical and electronic waste containing primary cells, primary batteries, or electric accumulators, and these are spent accumulators.

Lead-Free but Cadmium Capacitor Scrap

Electronic scrap consisting of silver-cadmium alloy button capacitors recovered from decommissioned power supplies. These components contain cadmium, which is explicitly listed in tariff item 8549.31.00 as a hazardous substance in electrical or electronic components, making this scrap classifiable under this item.