Official data Source: US Census Bureau international trade data
Track this productLiquid dielectric transformers having a power handling capacity exceeding 650 kva but not exceeding 10,000 kva
In short
- The US imported $2.10B of this product over the 12 months to August 2026, up 7.5% on the year before.
- Mexico is the largest supplier, with 41.1% of US imports; Korea, South is next, with 26.8%.
- Canada is the cheapest main supplier before and after freight and duty, landing at $25,471 each.
- Duty paid averaged 25.9% of the value of imports in August 2026, up 16.2 points on a year earlier.
- Turkey is gaining share: 5.7% over the last 12 months, up from 2.5%.
- US exports were $64.2M over the last 12 months; the largest market is Canada, with 68.8%.
US imports, Aug 2026
$178.6M
↓ −13% vs Aug 2025
Last 12 months
$2.10B
↑ +7.5% vs the 12 months before
Average duty paid
25.9%
↑ +16.2 pts vs Aug 2025
Top supplier
Mexico
41.1% 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. 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
| Month | US imports |
|---|---|
| August 2025 | $205.3M |
| September 2025 | $177.3M |
| October 2025 | $196.5M |
| November 2025 | $165.2M |
| December 2025 | $179.1M |
| January 2026 | $224.2M |
| February 2026 | $147.7M |
| March 2026 | $161.2M |
| April 2026 | $156.1M |
| May 2026 | $178.4M |
| June 2026 | $166.2M |
| July 2026 | $170.9M |
| August 2026 | $178.6M |
What changed
- US imports were $178.6M in August 2026, up 4.5% from July 2026 and down 13% from August 2025.
- Over the 12 months to August 2026 they totalled $2.10B, up 7.5% on the 12 months before.
- Biggest moves in market share since July 2026: Korea, South up from 15.2% to 26.8%, Brazil down from 8.1% to 1.9%.
- Average price from Korea, South rose 28% since July 2026, to $49,194 each.
- Duty paid on imports from Thailand fell from 25.0% to 2.7% of their value since July 2026.
- Duty paid on imports from China fell from 50.0% to 48.0% of their value since July 2026.
US trade by year
US imports were $2.10B in the 12 months to Aug 2026, up 1184% on the 12 months to Aug 2017. US exports were $64.2M, down 11%. In January 2022 the HS 2022 revision moved some goods between this code and 8524.11, 8524.12, 8524.19 and 12 more, so part of a change across the dashed line can be the revision. In January 2017 the HS 2017 revision moved some goods between this code and 8542.31, 8542.32, 8542.33 and 1 more, so part of a change across the dashed line can be the revision. 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 | $163.7M |
| 12 months to Aug 2018 | $201.6M |
| 12 months to Aug 2019 | $259.1M |
| 12 months to Aug 2020 | $323.4M |
| 12 months to Aug 2021 | $361.9M |
| 12 months to Aug 2022 | $513.1M |
| 12 months to Aug 2023 | $907.1M |
| 12 months to Aug 2024 | $1.24B |
| 12 months to Aug 2025 | $1.96B |
| 12 months to Aug 2026 | $2.10B |
- Mexico
- Korea, South
- China
- Turkey
- All countries
Show the numbers
| Period | Mexico | Korea, South | China | Turkey |
|---|---|---|---|---|
| 12 months to Aug 2017 | 64.9% | 4.4% | 0.6% | 0.1% |
| 12 months to Aug 2018 | 66.8% | 5.5% | 1.1% | 0.2% |
| 12 months to Aug 2019 | 63.2% | 6.6% | 0.4% | 0.3% |
| 12 months to Aug 2020 | 69.4% | 4.0% | 0.3% | 0.1% |
| 12 months to Aug 2021 | 69.5% | 5.4% | 0.4% | 0.1% |
| 12 months to Aug 2022 | 65.9% | 12.1% | 3.5% | 0.2% |
| 12 months to Aug 2023 | 61.0% | 12.9% | 3.6% | 0.8% |
| 12 months to Aug 2024 | 49.9% | 18.7% | 5.5% | 1.5% |
| 12 months to Aug 2025 | 42.5% | 24.6% | 7.0% | 2.5% |
| 12 months to Aug 2026 | 42.4% | 19.9% | 6.7% | 5.7% |
Show the numbers
| Period | Mexico | Korea, South | China | Turkey | All countries |
|---|---|---|---|---|---|
| 12 months to Aug 2017 | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
| 12 months to Aug 2018 | 0.0% | 0.0% | 0.8% | 0.0% | 0.0% |
| 12 months to Aug 2019 | 0.0% | 0.0% | 25.0% | 0.0% | 0.1% |
| 12 months to Aug 2020 | 0.0% | 0.0% | 25.0% | 0.0% | 0.1% |
| 12 months to Aug 2021 | 0.0% | 0.0% | 25.0% | 0.0% | 0.1% |
| 12 months to Aug 2022 | 0.0% | 0.0% | 25.0% | 0.0% | 0.9% |
| 12 months to Aug 2023 | 0.0% | 0.0% | 24.9% | 0.0% | 0.9% |
| 12 months to Aug 2024 | 0.0% | 0.0% | 24.7% | 0.0% | 1.4% |
| 12 months to Aug 2025 | 0.0% | 3.5% | 42.0% | 1.8% | 4.4% |
| 12 months to Aug 2026 | 9.9% | 14.7% | 43.6% | 17.9% | 15.5% |
| Period | US imports | Duty paid | US exports |
|---|---|---|---|
| 12 months to Aug 2026 | $2.10B+7.5% | 15.5%+11.1 pts | $64.2M−45% |
| 12 months to Aug 2025 | $1.96B+58% | 4.4%+3.0 pts | $116.2M+11% |
| 12 months to Aug 2024 | $1.24B+37% | 1.4%+0.5 pts | $104.3M+105% |
| 12 months to Aug 2023 | $907.1M+77% | 0.9%0.0 pts | $50.9M−11% |
| 12 months to Aug 2022HS 2022 revision | $513.1M+42% | 0.9%+0.8 pts | $57.1M+0.1% |
| 12 months to Aug 2021 | $361.9M+12% | 0.1%0.0 pts | $57.1M−6.7% |
| 12 months to Aug 2020 | $323.4M+25% | 0.1%0.0 pts | $61.2M+1.8% |
| 12 months to Aug 2019 | $259.1M+28% | 0.1%+0.1 pts | $60.1M−4.6% |
| 12 months to Aug 2018 | $201.6M+23% | 0.0%0.0 pts | $63.0M−13% |
| 12 months to Aug 2017HS 2017 revision | $163.7M | 0.0% | $72.1M |
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.
| Country | US imports | Share | Average price | Duty paid | Last 13 months |
|---|---|---|---|---|---|
| Mexico | $73.5M | 41.1%−0.7 pts | $71,196 each−3.9% | 24.7%+24.7 pts | |
| Korea, South | $47.9M | 26.8%+0.8 pts | $49,194 each−22% | 24.5%+19.4 pts | |
| China | $18.0M | 10.1%−2.1 pts | $22,691 each−30% | 48.0%−7.0 pts | |
| Turkey | $10.2M | 5.7%+4.7 pts | $147,242 each+6.8% | 25.0%+13.0 pts | |
| Thailand | $7.8M | 4.4%+3.1 pts | $59,498 each+74% | 2.7%−9.9 pts | |
| Canada | $5.0M | 2.8%−1.0 pts | $49,620 each−52% | 24.7%+23.3 pts | |
| Brazil | $3.5M | 1.9%−0.2 pts | $115,284 each−0.8% | 25.0%+15.0 pts | |
| Colombia | $3.0M | 1.7%−3.2 pts | $74,368 each+1.8% | 25.0%+15.7 pts | |
| Other countries (16) | $9.8M | 5.5%−0.6 pts | $51,776 each+23% | 22.4%+12.0 pts | |
| All countries | $178.6M | 100.0% | $53,151 each−11% | 25.9%+16.2 pts |
The 3 largest suppliers had 69.0% 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
| Country | Price | Freight and insurance | Duty | Landed cost | Make-up |
|---|---|---|---|---|---|
| Canada | $20,620 each | $42.49 each0.2% of price | $4,808 each23.3% of price | $25,471 each−73% | |
| China | $22,271 each | $968.29 each4.3% of price | $10,905 each49.0% of price | $34,144 each+24% | |
| Korea, South | $48,706 each | $1,668 each3.4% of price | $11,870 each24.4% of price | $62,244 each+6.0% | |
| Thailand | $66,455 each | $319.12 each0.5% of price | $8,994 each13.5% of price | $75,768 each+2597% | |
| Mexico | $72,846 each | $215.72 each0.3% of price | $18,092 each24.8% of price | $91,154 each+20% | |
| Colombia | $93,045 each | $6,131 each6.6% of price | $23,261 each25.0% of price | $122,437 each+47% | |
| Brazil | $113,860 each | $2,912 each2.6% of price | $28,268 each24.8% of price | $145,040 each+44% | |
| Turkey | $152,588 each | $2,452 each1.6% of price | $38,120 each25.0% of price | $193,160 each+72% | |
| All countries | $53,862 each | $942.97 each1.8% of price | $13,929 each25.9% of price | $68,734 each+33% |
Landed at a US port, Canada was cheapest, at $25,471 each: 25.4% below China.
Landed cost from Thailand rose 2597% on a year earlier, to $75,768 each, mostly on price: $2,358 each then, $66,455 each now.
How the market is shifting
Turkey gained the most share: 5.7% of US imports over the last 12 months, up from 2.5% in the 12 months before. Korea, South lost the most: 19.9%, down from 24.6%. The charts show September 2024 to August 2026 for the 4 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.
- Mexico
- Korea, South
- China
- Turkey
- All countries
Show the numbers
| Month | Mexico | Korea, South | China | Turkey |
|---|---|---|---|---|
| September 2024 | 46.9% | 22.4% | 6.6% | 2.9% |
| October 2024 | 43.1% | 19.4% | 3.4% | 3.2% |
| November 2024 | 44.1% | 23.9% | 4.7% | 0.2% |
| December 2024 | 36.7% | 27.6% | 4.6% | 1.3% |
| January 2025 | 34.8% | 22.0% | 7.3% | 3.1% |
| February 2025 | 38.7% | 18.0% | 7.1% | 8.0% |
| March 2025 | 45.6% | 22.2% | 6.9% | 3.0% |
| April 2025 | 41.4% | 26.7% | 14.1% | 4.4% |
| May 2025 | 43.7% | 29.2% | 4.1% | 2.2% |
| June 2025 | 46.5% | 24.8% | 2.7% | 1.1% |
| July 2025 | 46.6% | 29.1% | 7.6% | 0.4% |
| August 2025 | 41.8% | 26.0% | 12.2% | 1.0% |
| September 2025 | 45.1% | 21.9% | 4.5% | 2.9% |
| October 2025 | 46.3% | 21.9% | 4.5% | 2.8% |
| November 2025 | 45.3% | 15.7% | 6.4% | 2.9% |
| December 2025 | 33.8% | 26.8% | 9.9% | 6.4% |
| January 2026 | 30.7% | 17.8% | 7.2% | 5.5% |
| February 2026 | 47.1% | 17.3% | 10.9% | 8.1% |
| March 2026 | 48.9% | 23.0% | 7.2% | 4.0% |
| April 2026 | 43.0% | 23.6% | 4.0% | 7.6% |
| May 2026 | 40.6% | 16.1% | 4.3% | 7.7% |
| June 2026 | 46.0% | 12.9% | 5.5% | 7.8% |
| July 2026 | 45.2% | 15.2% | 5.8% | 7.8% |
| August 2026 | 41.1% | 26.8% | 10.1% | 5.7% |
Show the numbers
| Month | Mexico | Korea, South | China | Turkey | All countries |
|---|---|---|---|---|---|
| September 2024 | 0.0% | 0.0% | 25.0% | 0.0% | 1.6% |
| October 2024 | 0.0% | 0.0% | 25.0% | 0.0% | 0.9% |
| November 2024 | 0.0% | 0.0% | 25.0% | 0.0% | 1.2% |
| December 2024 | 0.0% | 0.0% | 25.0% | 0.0% | 1.2% |
| January 2025 | 0.0% | 0.0% | 25.0% | 0.0% | 1.8% |
| February 2025 | 0.0% | 0.0% | 25.3% | 0.0% | 1.8% |
| March 2025 | 0.0% | 0.0% | 43.4% | 0.0% | 3.0% |
| April 2025 | 0.1% | 2.8% | 48.4% | 0.0% | 8.0% |
| May 2025 | 0.0% | 9.5% | 54.8% | 9.5% | 6.1% |
| June 2025 | 0.0% | 10.0% | 55.0% | 10.0% | 6.0% |
| July 2025 | 0.0% | 6.7% | 55.0% | 10.0% | 7.5% |
| August 2025 | 0.0% | 5.0% | 55.0% | 12.0% | 9.7% |
| September 2025 | 0.0% | 13.5% | 55.0% | 14.3% | 9.0% |
| October 2025 | 0.0% | 15.0% | 55.0% | 14.5% | 9.7% |
| November 2025 | 0.0% | 9.8% | 49.8% | 15.0% | 9.2% |
| December 2025 | 0.0% | 3.2% | 45.0% | 15.0% | 11.7% |
| January 2026 | 0.0% | 14.9% | 45.0% | 11.9% | 15.1% |
| February 2026 | 0.0% | 5.7% | 28.4% | 10.5% | 5.4% |
| March 2026 | 0.0% | 5.0% | 23.1% | 5.0% | 3.5% |
| April 2026 | 20.5% | 18.3% | 36.6% | 16.4% | 19.9% |
| May 2026 | 24.8% | 23.1% | 47.4% | 24.8% | 24.6% |
| June 2026 | 24.9% | 23.6% | 49.8% | 24.9% | 25.3% |
| July 2026 | 25.0% | 24.8% | 50.0% | 25.0% | 26.3% |
| August 2026 | 24.7% | 24.5% | 48.0% | 25.0% | 25.9% |
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.
- April–May 2026 · Duty paid: Mexico 0.0% → 24.9%, Korea, South 5.3% → 23.4%, Canada 0.3% → 24.5%, Colombia 6.7% → 25.0%, all countries 8.6% → 25.0%.
- April–May 2025 · Duty paid: Korea, South 0.0% → 8.1%, Colombia 0.0% → 9.5%, all countries 1.8% → 6.8%.
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 $5.4M in August 2026, down 52% from August 2025, and $64.2M over the last 12 months, down 45% on the 12 months before.
| Market | Last 12 months | Share | vs 12 months before |
|---|---|---|---|
| Canada | $44.2M | 68.8% | −43% |
| Mexico | $8.8M | 13.7% | −29% |
| Korea, South | $1.6M | 2.4% | −85% |
| Bahamas | $1.3M | 2.0% | +119% |
| Chad | $1.2M | 1.8% | new |
| Nigeria | $889K | 1.4% | new |
| Hungary | $609K | 0.9% | new |
| Aruba | $509K | 0.8% | +2207% |
| Other countries (26) | $5.3M | 8.2% | −45% |
| All countries | $64.2M | 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; 121 have reported 2025 so far.
| Market | Imports | vs year before | From the US | US share |
|---|---|---|---|---|
| Germany | $430.0Min 2025 | +41% | $105K | 0.0% |
| Spain | $315.6Min 2025 | +5.1% | $518 | 0.0% |
| United Kingdom | $263.0Min 2025 | −14% | $16K | 0.0% |
| Italy | $146.4Min 2025 | −4.5% | $7K | 0.0% |
| Canada | $129.9Min 2025 | −8.2% | $62.0M | 47.8% |
| Saudi Arabia | $105.9Min 2025 | +25% | $74K | 0.1% |
| France | $98.2Min 2025 | −6.8% | $5K | 0.0% |
| Sweden | $85.4Min 2025 | −7.0% | $0 | 0.0% |
The biggest market outside the US is Germany, which imported $430.0M of this product in 2025, under 0.1% of it from the US.
The US supplies 47.8% of imports into Canada, but under 10% into Germany, Spain and the United Kingdom.
Of these, imports into Germany grew fastest: up 41% from 2024 to 2025.
Related products
Other products under heading 8504: electrical transformers, static converters or inductors; power supplies for adp machines or units; parts thereof. US trade over the 12 months to August 2026.
| Product | US imports | US exports |
|---|---|---|
| Electrical static converters; power supplies for adp machines or units of 8471HS 8504.40 | $19.10B | $6.64B |
| Parts for electrical transformers, static converters and inductorsHS 8504.90 | $4.23B | $1.06B |
| Liquid dielectric transformers having a power handling capacity exceeding 10,000 kvaHS 8504.23 | $4.32B | $47.2M |
| Electrical inductors not elsewhere specifiedHS 8504.50 | $2.79B | $496.2M |
| Liquid dielectric transformers having a power handling capacity not exceeding 650 kvaHS 8504.21 | $1.23B | $75.6M |
| Electrical transformers not elsewhere specified, having a power handing capacity not exceeding 1 kvaHS 8504.31 | $678.2M | $422.6M |
| Electrical transformers not elsewhere specified, having a power handling capacity exceeding 500 kvaHS 8504.34 | $909.3M | $54.3M |
| Electrical transformers not elsewhere specified, having a power handing capacity exceeding 16 kva but not exceeding 500 kvaHS 8504.33 | $658.3M | $218.6M |
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.