Mexico supplies 42.5% of U.S. imports of Lead-Acid Starter Batteries for Piston Engines, across 39 countries (year to date through August 2026).
HHI 2,639 of 10,000 · HHI above 1,800. The sum of each country’s squared percentage share; one country with everything scores 10,000.
39 countries supplying this product to the U.S.
| Rank# | Country | Value | Share | YoY | Duty |
|---|---|---|---|---|---|
| 1 | Mexico | $83.5M | 45.8% | -0.4% | <0.1% |
| 2 | South Korea | $49.4M | 27.1% | -29.9% | 13.4% |
| 3 | Vietnam | $14.3M | 7.9% | -1.1% | 18.9% |
| 4 | Malaysia | $8.5M | 4.7% | -33.5% | 20.4% |
| 5 | Germany | $7.1M | 3.9% | -27.0% | 14.6% |
| 6 | Japan | $6.3M | 3.5% | -19.0% | 5.3% |
| 7 | Philippines | $3.8M | 2.1% | -40.1% | 28.4% |
| 8 | Italy | $1.9M | 1.0% | -9.8% | 0.7% |
| 9 | Canada | $1.3M | 0.7% | +1.3% | 1.1% |
| 10 | Colombia | $902K | 0.5% | -81.6% | 13.3% |
| 11 | China | $852K | 0.5% | -55.5% | 40.9% |
| 12 | Indonesia | $704K | 0.4% | +24.3% | 12.1% |
| 13 | United Kingdom | $581K | 0.3% | +223.9% | 13.6% |
| 14 | Taiwan | $514K | 0.3% | -9.4% | 13.4% |
| 15 | Turkey | $451K | 0.3% | -65.6% | 28.1% |
| 16 | France | $398K | 0.2% | +470.4% | 9.5% |
| 17 | Spain | $370K | 0.2% | -50.6% | 15.0% |
| 18 | Czech Republic | $366K | 0.2% | +51.5% | 14.7% |
| 19 | Thailand | $345K | 0.2% | +84.9% | 17.8% |
| 20 | Slovenia | $167K | 0.1% | -- | 15.0% |
| 21 | Austria | $105K | 0.1% | -86.0% | 14.2% |
| 22 | Ecuador | $82K | 0.1% | -15.1% | 3.5% |
| 23 | Finland | $68K | <0.1% | +67.6% | 3.5% |
| 24 | Poland | $54K | <0.1% | +5.3% | 16.1% |
| 25 | Portugal | $12K | <0.1% | -63.4% | 10.0% |
| 26 | Denmark | hidden | hidden | hidden | hidden |
| 27 | Netherlands | hidden | hidden | hidden | hidden |
| 28 | South Africa | hidden | hidden | hidden | hidden |
| 29 | Dominican Republic | hidden | hidden | hidden | hidden |
| 30 | Peru | hidden | hidden | hidden | hidden |
| 31 | Switzerland | hidden | hidden | hidden | hidden |
| 32 | Croatia | hidden | hidden | hidden | hidden |
| 33 | Bulgaria | hidden | hidden | hidden | hidden |
| 34 | Israel | hidden | hidden | hidden | hidden |
| 35 | Saudi Arabia | hidden | hidden | hidden | hidden |
| 36 | Oman | hidden | hidden | hidden | hidden |
| 37 | India | hidden | hidden | hidden | hidden |
| 38 | Singapore | hidden | hidden | hidden | hidden |
| 39 | Samoa | hidden | hidden | hidden | hidden |
Duty is the duty Census calculated on this month's imports for consumption from each country, as a share of their customs value. It applies the rates in force, additional duties such as Section 301, 232 and IEEPA included and claimed trade-agreement preferences netted out, so it is an observed rate rather than a statutory one. It is an estimate, not duty collected: antidumping and countervailing duties, fees and later refunds are not in it. YoY compares year-to-date value with the same months last year.