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Wireline Selective Firing Head

Addresses specific perforating guns by depth or address code via wireline signals. Classified HTS 8479.89.95.50 for oil/gas field wireline detonation equipment.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+37.5%40%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

Alternative Classifications

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

8536.69.40Lower: 37.5% vs 40%

If general electrical detonators/switches

Electrical apparatus Chapter 85 excludes oilfield wireline firing heads.

9305.10.40.00Lower: 24.2% vs 40%

If small arms ammunition components

Military/naval excludes commercial oilfield detonators.

Not sure which classification is right?

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

Import Tips & Compliance

• Electronic schematic and firing code programming info

• ATEX certification for ignition devices

• Declare with perforating gun systems, not standalone detonators