Mixed Metal Oxide Coated Graphite Anodes (MMO Graphite)

Graphite base anodes with ruthenium/iridium mixed metal oxide (MMO) coatings for dimensionally stable electrolytic performance in brine electrolysis. HTS 8545.19.20.00 includes these metal-containing graphite electrodes designed for electrolytic service.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳ChinaFree+35.0%35%
🇲🇽MexicoFree+10.0%10%
🇨🇦CanadaFree+10.0%10%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+10.0%10%

Alternative Classifications

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

8105.20Lower: 10% vs 35%

If predominantly ruthenium/iridium content by value

MMO coatings where precious metal value exceeds graphite base may classify under powders of base metals.

8515.90.40Same rate: 35%

If parts of complete welder/brazing electrolytic equipment

Specialized anodes for industrial welding power sources classify with complete electrical apparatus.

2843.10.00.00Higher: 40.5% vs 35%

If sold primarily as precious metal chemical preparations

MMO coatings imported mainly for their chemical catalytic properties classify under inorganic compounds.

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Import Tips & Compliance

Declare precious metal content for accurate duty calculation; provide coating thickness and accelerated life test results (>20,000 hrs); comply with Basel Convention for precious metal scrap potential

Related Products under HTS 8545.19.20.00

Graphite Electrolytic Anode for Chlor-Alkali Production

High-density graphite anode designed specifically for electrolytic cells in chlor-alkali processes, where it conducts electricity to facilitate the electrolysis of brine into chlorine and caustic soda. This electrode falls under HTS 8545.19.20.00 as it is of a kind used for electrolytic purposes, featuring corrosion resistance and high electrical conductivity essential for sustained operation in harsh electrolytic environments.

Carbon Cathode Block for Aluminum Electrolysis

Prebaked amorphous carbon cathode block used in Hall-Héroult electrolytic cells for primary aluminum production, providing the cathode surface for molten aluminum collection during electrolysis. Classified under HTS 8545.19.20.00 due to its specific design for electrolytic conduction in high-temperature aluminum smelting processes.

Graphite Bipolar Plates for PEM Fuel Cell Electrolyzers

Machined graphite bipolar plates serving as both anode and cathode in proton exchange membrane (PEM) electrolytic cells for hydrogen production via water electrolysis. This product is captured by HTS 8545.19.20.00 for its role in conducting electricity during the electrolytic splitting of water molecules.

Expandable Graphite Electrodes for Electrowinning

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Impregnated Carbon Anodes for Organic Electrosynthesis

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Graphite Dummy Electrodes for Copper Electrowinning

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