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Official data Source: US Census Bureau international trade data Data through August 2026 · updated monthly

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HS 3603.40

Detonating caps

In short

  • The US imported $42.2M of this product over the 12 months to August 2026, down 50% on the year before.
  • Mexico is the largest supplier, with 96.9% of US imports; Spain is next, with 3.0%.
  • Mexico is the cheapest main supplier before and after freight and duty, landing at $3.10 each.
  • Duty paid averaged 0.3% of the value of imports in August 2026, down 0.7 points on a year earlier.
  • Mexico is gaining share: 92.8% over the last 12 months, up from 34.5%.
  • US exports were $22.1M over the last 12 months; the largest market is Australia, with 33.6%.

US imports, Aug 2026

$4.8M

↓ −5.3% vs Aug 2025

Last 12 months

$42.2M

↓ −50% vs the 12 months before

Average duty paid

0.3%

↓ −0.7 pts vs Aug 2025

Top supplier

Mexico

96.9% of US imports

US imports by month

The last 13 months, so the same month a year ago is on the left. August 2026 is highlighted.

Aug2025SepOctNovDecJan2026FebMarAprMayJunJulAug
Show the numbers
MonthUS imports
August 2025$5.1M
September 2025$3.8M
October 2025$2.5M
November 2025$2.6M
December 2025$3.5M
January 2026$1.4M
February 2026$4.8M
March 2026$4.7M
April 2026$2.3M
May 2026$2.6M
June 2026$5.3M
July 2026$3.9M
August 2026$4.8M

What changed

  • US imports were $4.8M in August 2026, up 24% from July 2026 and down 5.3% from August 2025.
  • Over the 12 months to August 2026 they totalled $42.2M, down 50% on the 12 months before.
  • Biggest moves in market share since July 2026: Mexico up from 91.9% to 96.9%, Peru down from 4.4% to 0.0%.
  • Average price from Mexico rose 171% since July 2026, to $4.93 each.
  • Duty paid by the main suppliers held within 2 points of July 2026.

US trade by year

US imports were $42.2M in the 12 months to Aug 2026, down 61% on the 12 months to Aug 2023. US exports were $22.1M, down 18%. This code began with the HS 2022 revision in January 2022, taking goods from 3603.00, so its history starts there.

2023202420252026
Show the numbers
PeriodUS imports
12 months to Aug 2023$108.3M
12 months to Aug 2024$122.0M
12 months to Aug 2025$84.7M
12 months to Aug 2026$42.2M
  • Mexico
  • Spain
  • Peru
  • Germany
  • All countries
Share of US imports
Show the numbers
PeriodMexicoSpainPeruGermany
12 months to Aug 202330.9%0.0%0.0%0.3%
12 months to Aug 202430.5%0.0%0.1%1.4%
12 months to Aug 202534.5%0.0%0.1%2.1%
12 months to Aug 202692.8%3.8%1.2%0.9%
Duty paid, % of value
Show the numbers
PeriodMexicoSpainPeruGermanyAll countries
12 months to Aug 20230.0%n/an/a0.2%0.0%
12 months to Aug 20240.0%n/a0.0%0.2%0.0%
12 months to Aug 20250.0%0.2%3.7%4.6%0.2%
12 months to Aug 20260.0%11.0%10.1%10.2%0.8%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$42.2M−50%0.8%+0.6 pts$22.1M−39%
12 months to Aug 2025$84.7M−31%0.2%+0.2 pts$36.1M+34%
12 months to Aug 2024$122.0M+13%0.0%0.0 pts$27.0M+0.7%
12 months to Aug 2023$108.3M0.0%$26.8M

Who supplies the US

August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.

CountryUS importsShareAverage priceDuty paidLast 13 months
Mexico$4.6M96.9%+6.6 pts$4.93 each−60%0.0%0.0 pts
Spain$143K3.0%new$2.57 each10.0%
Czech Republic$4K0.1%new$0.60 each10.0%
All countries$4.8M100.0%$4.77 each−64%0.3%−0.7 pts

The 3 largest suppliers had 97.8% of US imports over the last 12 months.

Landed cost by origin

What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.

  • Price
  • Freight and insurance
  • Duty
CountryPriceFreight and insuranceDutyLanded costMake-up
Mexico$3.10 each$0.00 each0.1% of price$0.00 each0.0% of price$3.10 each−20%
Spain$5.06 each$0.03 each0.7% of price$0.51 each10.2% of price$5.61 each
All countries$3.14 each$0.01 each0.3% of price$0.02 each0.7% of price$3.17 each−22%

Landed at a US port, Mexico was cheapest, at $3.10 each: 44.7% below Spain.

Landed cost from Mexico fell 20% on a year earlier, to $3.10 each, mostly on price: $3.87 each then, $3.10 each now.

How the market is shifting

Mexico gained the most share: 92.8% of US imports over the last 12 months, up from 34.5% in the 12 months before. Canada lost the most: 0.0%, down from 56.4%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • Mexico
  • Spain
  • Peru
  • Germany
  • All countries
Share of US imports
Show the numbers
MonthMexicoSpainPeruGermany
September 202415.5%0.0%0.0%1.7%
October 20241.6%0.0%0.0%0.0%
November 20240.8%0.0%0.0%0.0%
December 202427.5%0.0%0.0%7.4%
January 202525.4%0.0%0.0%0.0%
February 202526.5%0.0%0.0%0.0%
March 202537.2%0.0%0.3%1.3%
April 202562.8%0.0%0.0%8.3%
May 202599.5%0.0%0.5%0.0%
June 202596.7%0.0%0.0%0.0%
July 2025100.0%0.0%0.0%0.0%
August 202590.4%0.0%0.1%9.3%
September 202596.2%3.4%0.0%0.0%
October 202595.8%0.0%0.0%0.0%
November 202597.6%0.2%2.2%0.0%
December 202592.8%3.9%0.0%0.0%
January 2026100.0%0.0%0.0%0.0%
February 202697.5%0.0%0.0%0.0%
March 202689.0%8.3%1.4%0.0%
April 202686.5%11.6%1.6%0.2%
May 202679.0%0.2%6.3%14.5%
June 202690.7%7.1%0.0%0.0%
July 202691.9%3.7%4.4%0.0%
August 202696.9%3.0%0.0%0.0%
Duty paid, % of value
Show the numbers
MonthMexicoSpainPeruGermanyAll countries
September 20240.0%n/an/a0.2%0.0%
October 20240.0%n/an/an/a0.0%
November 20240.0%n/an/an/a0.0%
December 20240.0%n/an/a0.2%0.1%
January 20250.0%n/an/an/a0.0%
February 20250.0%n/an/an/a0.0%
March 20250.0%0.2%0.0%0.2%0.5%
April 20250.0%n/an/a10.2%0.8%
May 20250.0%n/a10.0%n/a0.0%
June 20250.0%n/an/an/a0.3%
July 20250.0%n/an/an/a0.0%
August 20250.0%n/a10.0%10.2%1.0%
September 20250.0%15.0%n/an/a0.6%
October 20250.0%n/an/an/a0.6%
November 20250.0%15.0%10.0%n/a0.2%
December 20250.0%15.0%n/an/a1.1%
January 20260.0%n/an/an/a0.0%
February 20260.0%n/an/an/a0.4%
March 20260.0%10.2%10.0%n/a1.1%
April 20260.0%10.2%10.0%10.2%1.4%
May 20260.0%10.2%10.0%10.2%2.1%
June 20260.0%10.2%n/an/a0.9%
July 20260.0%10.2%10.2%n/a0.8%
August 20260.0%10.0%n/an/a0.3%

Where it enters the US

Main ports of entry over the 12 months to August 2026: US imports and share.

  1. Laredo, TX$39.2M · 92.9%
  2. Norfolk-Newport News, VA$1.5M · 3.6%
  3. Miami International Airport, FL$496K · 1.2%
  4. Dallas-Fort Worth, TX$358K · 0.8%
  5. Los Angeles, CA$237K · 0.6%

Where US exports go

US exports were $2.1M in August 2026, up 130% from August 2025, and $22.1M over the last 12 months, down 39% on the 12 months before. Fastest-growing market with 3% or more of US exports: Italy, up 187%.

MarketLast 12 monthsSharevs 12 months before
Australia$7.4M33.6%+14%
Indonesia$2.3M10.6%−41%
Mexico$2.3M10.5%−71%
Chile$1.9M8.7%−15%
Saudi Arabia$1.3M6.0%−14%
Israel$1.1M5.1%+1.4%
Italy$864K3.9%+187%
Canada$716K3.2%−37%
Other countries (48)$4.1M18.4%−53%
All countries$22.1M100.0%−39%

Markets abroad

Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 90 have reported 2025 so far.

MarketImportsvs year beforeFrom the USUS share
Australia$35.0Min 2025+57%$5.4M15.6%
Uzbekistan$33.4Min 2024+100%$00.0%
Turkey$26.1Min 2025−20%$1.4M5.3%
Canada$22.3Min 2025+55%$547K2.5%
South Africa$20.8Min 2025+71%$24K0.1%
Colombia$11.7Min 2025+117%$66K0.6%
Zimbabwe$11.3Min 2025+101%$00.0%
Kazakhstan$10.8Min 2025−20%$2K0.0%

The biggest market outside the US is Australia, which imported $35.0M of this product in 2025, 15.6% of that from the US.

Of these, imports into Colombia grew fastest: up 117% from 2024 to 2025.

Other products under heading 3603: safety fuses; detonating cords; percussion or detonating caps; igniters; electric detonators. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Electric detonatorsHS 3603.60$152.3M$160.0M
IgnitersHS 3603.50$65.2M$92.2M
Detonating cordsHS 3603.20$2.5M$94.7M
Percussion capsHS 3603.30$2.2M$15.5M
Safety fusesHS 3603.10$1.9M$5.1M
About these figures
  • Source: US Census Bureau international trade data, not seasonally adjusted, in US dollars. Retrieved November 3, 2026.
  • US imports are general imports at customs value, which excludes freight and insurance. Exports are at free-alongside-ship value.
  • Average price is customs value divided by quantity (number of items), across all of the product's 10-digit lines.
  • Duty paid is the duty Census calculates on each country's imports for consumption, as a share of their value. It moves with tariff changes, exemptions and the mix of goods within the product.
  • Landed cost adds Census's import charges (freight, insurance and other costs of bringing the goods to the first US port) and calculated duty to the customs value, per unit, across the product's 10-digit lines. It leaves out antidumping and countervailing duties, customs fees and transport inland. Prices are averages across the goods within the code, so a lower one can mean cheaper goods, not the same goods for less.
  • Markets abroad are each country's imports as it reports them to UN Comtrade, in US dollars, usually including freight and insurance. Countries report a year or more late and in their own edition of the HS codes, so one still on an older edition is missing for codes that changed in 2022.
  • Census revises recent months, so figures can change slightly. These are estimates for research and planning, not customs or legal advice.

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