Official data Source: US Census Bureau international trade data
Track this productTetramethyl lead and tetraethyl lead
In short
- The US imported $3.0M of this product over the 12 months to August 2026, up 38% on the year before.
- Japan is the largest supplier, with 100.0% of US imports.
- Duty paid averaged 12.5% of the value of imports in August 2026, down 2.1 points on a year earlier.
- Japan is gaining share: 98.3% over the last 12 months, up from 93.3%.
- US exports were $1.2M over the last 12 months; the largest market is Brazil, with 49.1%.
US imports, Aug 2026
$299K
↑ +257% vs Aug 2025
Last 12 months
$3.0M
↑ +38% vs the 12 months before
Average duty paid
12.5%
↓ −2.1 pts vs Aug 2025
Top supplier
Japan
100.0% 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.
Show the numbers
| Month | US imports |
|---|---|
| August 2025 | $84K |
| September 2025 | $476K |
| October 2025 | $197K |
| November 2025 | $518K |
| December 2025 | $417K |
| January 2026 | $222K |
| February 2026 | $203K |
| March 2026 | $0 |
| April 2026 | $68K |
| May 2026 | $20K |
| June 2026 | $289K |
| July 2026 | $303K |
| August 2026 | $299K |
What changed
- US imports were $299K in August 2026, down 1.5% from July 2026 and up 257% from August 2025.
- Over the 12 months to August 2026 they totalled $3.0M, up 38% on the 12 months before.
- Market shares barely moved since July 2026: no supplier with 3% or more of the market gained or lost 2 points.
- Average price from Japan stayed within 5% of July 2026, at $31.10/kg.
- Duty paid by the main suppliers held within 2 points of July 2026.
US trade by year
US imports were $3.0M in the 12 months to Aug 2026, down 48% on the 12 months to Aug 2017. US exports were $1.2M, down 38%. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.
Show the numbers
| Period | US imports |
|---|---|
| 12 months to Aug 2017 | $5.8M |
| 12 months to Aug 2018 | $9.4M |
| 12 months to Aug 2019 | $4.2M |
| 12 months to Aug 2020 | $3.7M |
| 12 months to Aug 2021 | $2.2M |
| 12 months to Aug 2022 | $2.8M |
| 12 months to Aug 2023 | $3.8M |
| 12 months to Aug 2024 | $1.6M |
| 12 months to Aug 2025 | $2.2M |
| 12 months to Aug 2026 | $3.0M |
- Japan
- China
- All countries
Show the numbers
| Period | Japan | China |
|---|---|---|
| 12 months to Aug 2017 | 72.8% | 21.7% |
| 12 months to Aug 2018 | 40.1% | 54.1% |
| 12 months to Aug 2019 | 86.4% | 6.1% |
| 12 months to Aug 2020 | 87.4% | 0.1% |
| 12 months to Aug 2021 | 80.4% | 0.9% |
| 12 months to Aug 2022 | 87.8% | 0.0% |
| 12 months to Aug 2023 | 81.5% | 0.0% |
| 12 months to Aug 2024 | 87.1% | 0.0% |
| 12 months to Aug 2025 | 93.3% | 0.0% |
| 12 months to Aug 2026 | 98.3% | 1.7% |
Show the numbers
| Period | Japan | China | All countries |
|---|---|---|---|
| 12 months to Aug 2017 | 3.7% | 3.6% | 3.6% |
| 12 months to Aug 2018 | 3.7% | 3.7% | 3.6% |
| 12 months to Aug 2019 | 3.7% | 4.7% | 3.7% |
| 12 months to Aug 2020 | 3.7% | 28.7% | 3.7% |
| 12 months to Aug 2021 | 3.7% | 28.7% | 3.6% |
| 12 months to Aug 2022 | 3.7% | n/a | 3.7% |
| 12 months to Aug 2023 | 3.7% | n/a | 3.5% |
| 12 months to Aug 2024 | 3.7% | n/a | 3.7% |
| 12 months to Aug 2025 | 5.6% | n/a | 5.8% |
| 12 months to Aug 2026 | 14.3% | 40.5% | 14.7% |
| Period | US imports | Duty paid | US exports |
|---|---|---|---|
| 12 months to Aug 2026 | $3.0M+38% | 14.7%+8.9 pts | $1.2M+45% |
| 12 months to Aug 2025 | $2.2M+37% | 5.8%+2.1 pts | $797K+2.1% |
| 12 months to Aug 2024 | $1.6M−58% | 3.7%+0.2 pts | $781K−71% |
| 12 months to Aug 2023 | $3.8M+36% | 3.5%−0.2 pts | $2.7M−32% |
| 12 months to Aug 2022 | $2.8M+26% | 3.7%0.0 pts | $4.0M+256% |
| 12 months to Aug 2021 | $2.2M−40% | 3.6%−0.1 pts | $1.1M−20% |
| 12 months to Aug 2020 | $3.7M−12% | 3.7%0.0 pts | $1.4M−31% |
| 12 months to Aug 2019 | $4.2M−55% | 3.7%+0.2 pts | $2.0M−22% |
| 12 months to Aug 2018 | $9.4M+61% | 3.6%0.0 pts | $2.6M+39% |
| 12 months to Aug 2017 | $5.8M | 3.6% | $1.9M |
Who supplies the US
August 2026. Small figures under each value are the change from August 2025.
| Country | US imports | Share | Average price | Duty paid | Last 13 months |
|---|---|---|---|---|---|
| Japan | $299K | 100.0%+82.4 pts | $31.10/kg−62% | 12.5%−6.2 pts | |
| All countries | $299K | 100.0% | $31.10/kg−73% | 12.5%−2.1 pts |
The 2 largest suppliers had 100.0% of US imports over the last 12 months.
How the market is shifting
Japan gained the most share: 98.3% of US imports over the last 12 months, up from 93.3% in the 12 months before. The charts show September 2024 to August 2026 for the 2 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.
- Japan
- China
- All countries
Show the numbers
| Month | Japan | China |
|---|---|---|
| September 2024 | 57.3% | 0.0% |
| October 2024 | 100.0% | 0.0% |
| November 2024 | 100.0% | 0.0% |
| December 2024 | 100.0% | 0.0% |
| January 2025 | 0.0% | 0.0% |
| February 2025 | 98.0% | 0.0% |
| March 2025 | n/a | n/a |
| April 2025 | 100.0% | 0.0% |
| May 2025 | 99.2% | 0.0% |
| June 2025 | 100.0% | 0.0% |
| July 2025 | 100.0% | 0.0% |
| August 2025 | 17.6% | 0.0% |
| September 2025 | 100.0% | 0.0% |
| October 2025 | 100.0% | 0.0% |
| November 2025 | 98.2% | 1.8% |
| December 2025 | 100.0% | 0.0% |
| January 2026 | 100.0% | 0.0% |
| February 2026 | 100.0% | 0.0% |
| March 2026 | n/a | n/a |
| April 2026 | 43.2% | 56.8% |
| May 2026 | 88.2% | 11.8% |
| June 2026 | 100.0% | 0.0% |
| July 2026 | 100.0% | 0.0% |
| August 2026 | 100.0% | 0.0% |
Show the numbers
| Month | Japan | China | All countries |
|---|---|---|---|
| September 2024 | 3.7% | n/a | 3.7% |
| October 2024 | 3.7% | n/a | 3.7% |
| November 2024 | 3.7% | n/a | 3.7% |
| December 2024 | 3.7% | n/a | 3.7% |
| January 2025 | n/a | n/a | 2.6% |
| February 2025 | 3.7% | n/a | 3.6% |
| March 2025 | n/a | n/a | n/a |
| April 2025 | 4.1% | n/a | 4.1% |
| May 2025 | 3.7% | n/a | 3.8% |
| June 2025 | 13.7% | n/a | 13.7% |
| July 2025 | 13.7% | n/a | 13.7% |
| August 2025 | 18.7% | n/a | 14.6% |
| September 2025 | 13.7% | n/a | 13.7% |
| October 2025 | 15.0% | n/a | 15.0% |
| November 2025 | 15.0% | 48.7% | 15.6% |
| December 2025 | 15.0% | n/a | 15.0% |
| January 2026 | 15.0% | n/a | 15.0% |
| February 2026 | 15.0% | n/a | 15.0% |
| March 2026 | n/a | n/a | n/a |
| April 2026 | 13.7% | 38.7% | 27.9% |
| May 2026 | 13.7% | 38.7% | 16.6% |
| June 2026 | 13.7% | n/a | 13.7% |
| July 2026 | 13.7% | n/a | 13.7% |
| August 2026 | 12.5% | n/a | 12.5% |
Tariff actions touching this product
When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.
- June 2025 · Duty paid: Japan 3.7% → 13.7%, all countries 3.8% → 13.7%.
Where it enters the US
Main ports of entry over the 12 months to August 2026: US imports and share.
Where US exports go
US exports were $456K in August 2026, up 2951% from August 2025, and $1.2M over the last 12 months, up 45% on the 12 months before. Fastest-growing market with 3% or more of US exports: Brazil, up 1138%.
| Market | Last 12 months | Share | vs 12 months before |
|---|---|---|---|
| Brazil | $568K | 49.1% | +1138% |
| Mexico | $292K | 25.3% | +132% |
| Canada | $166K | 14.3% | −46% |
| Algeria | $118K | 10.2% | new |
| Turkey | $7K | 0.6% | new |
| South Africa | $3K | 0.3% | new |
| Ecuador | $3K | 0.3% | new |
| All countries | $1.2M | 100.0% | +45% |
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; 45 have reported 2025 so far.
| Market | Imports | vs year before | From the US | US share |
|---|---|---|---|---|
| Thailand | $4.5Min 2025 | +18% | $0 | 0.0% |
| Netherlands | $2.2Min 2025 | −12% | $353 | 0.0% |
| Canada | $1.4Min 2025 | +67% | $280K | 19.7% |
| Italy | $1.1Min 2025 | −18% | $0 | 0.0% |
| Belgium | $778Kin 2025 | −26% | $0 | 0.0% |
| Czech Republic | $497Kin 2025 | +107% | $97K | 19.4% |
| South Africa | $434Kin 2025 | +31% | $434K | 100.0% |
| Slovakia | $292Kin 2025 | +7.7% | $0 | 0.0% |
The biggest market outside the US is Thailand, which imported $4.5M of this product in 2025, none of it from the US.
The US supplies 100.0% of imports into South Africa, but under 10% into Thailand, the Netherlands and Italy.
Of these, imports into Thailand grew fastest: up 18% from 2024 to 2025.
Related products
Other products under heading 2931: organo-inorganic compounds, not elsewhere specified. US trade over the 12 months to August 2026.
| Product | US imports | US exports |
|---|---|---|
| Non-halogenated organo-phosphorous derivatives, not elsewhere specifiedHS 2931.49 | $621.7M | $793.7M |
| Organo-inorganic compounds, not elsewhere specifiedHS 2931.90 | $480.0M | $536.0M |
| Halogenated organo-phosphorous derivatives, not elsewhere specifiedHS 2931.59 | $3.1M | $6.9M |
| Tributyltin compoundsHS 2931.20 | $163K | $1.0M |
| Dimethyl methylphosphonateHS 2931.41 | $944K | $156K |
| Methylphosphonic acidHS 2931.44 | $3K | $707K |
| 2,4,6-tripropyl-1,3,5,2,4,6-trioxatriphosphinane 2,4,6-trioxideHS 2931.46 | $574K | $18K |
| Methylphosphonic dichlorideHS 2931.51 | $289K | $125K |
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 (kilograms), 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.
- 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.