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

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HS 2836.91

Lithium carbonates

In short

  • The US imported $153.8M of this product over the 12 months to August 2026, down 12% on the year before.
  • Chile is the largest supplier, with 81.3% of US imports; Argentina is next, with 18.2%.
  • Argentina is the cheapest main supplier before and after freight and duty, landing at $11.22/kg.
  • Duty paid averaged 2.6% of the value of imports in August 2026, up 2.2 points on a year earlier.
  • Chile is gaining share: 51.9% over the last 12 months, up from 43.2%.
  • 3 Federal Register notices named this product's tariff codes in the last 12 months.

US imports, Aug 2026

$24.1M

↑ +124% vs Aug 2025

Last 12 months

$153.8M

↓ −12% vs the 12 months before

Average duty paid

2.6%

↑ +2.2 pts vs Aug 2025

Top supplier

Chile

81.3% 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$10.8M
September 2025$1.8M
October 2025$6.6M
November 2025$7.0M
December 2025$14.6M
January 2026$7.8M
February 2026$10.7M
March 2026$17.4M
April 2026$12.8M
May 2026$9.2M
June 2026$23.5M
July 2026$18.3M
August 2026$24.1M

What changed

  • US imports were $24.1M in August 2026, up 32% from July 2026 and up 124% from August 2025.
  • Over the 12 months to August 2026 they totalled $153.8M, down 12% on the 12 months before.
  • Biggest moves in market share since July 2026: Chile up from 48.7% to 81.3%, Argentina down from 51.3% to 18.2%.
  • Average price from Argentina rose 10.0% since July 2026, to $11.58/kg.
  • Duty paid on imports from Chile rose from 0.2% to 2.3% of their value since July 2026.

US trade by year

US imports were $153.8M in the 12 months to Aug 2026, up 91% on the 12 months to Aug 2017. US exports were $28.2M, up 31%.

2017201820192020202120222023202420252026
Show the numbers
PeriodUS imports
12 months to Aug 2017$80.7M
12 months to Aug 2018$108.1M
12 months to Aug 2019$112.8M
12 months to Aug 2020$89.8M
12 months to Aug 2021$69.1M
12 months to Aug 2022$131.2M
12 months to Aug 2023$279.6M
12 months to Aug 2024$221.0M
12 months to Aug 2025$175.2M
12 months to Aug 2026$153.8M
  • Chile
  • Argentina
  • France
  • United Kingdom
  • All countries
Share of US imports
Show the numbers
PeriodChileArgentinaFranceUnited Kingdom
12 months to Aug 201739.4%59.6%0.0%0.0%
12 months to Aug 201848.4%49.4%0.0%0.2%
12 months to Aug 201947.9%36.0%0.0%0.4%
12 months to Aug 202038.9%54.8%0.0%0.3%
12 months to Aug 202151.9%45.9%0.0%0.3%
12 months to Aug 202262.1%36.2%0.0%0.8%
12 months to Aug 202373.8%24.3%0.1%0.3%
12 months to Aug 202463.1%35.1%0.4%0.6%
12 months to Aug 202543.2%55.8%0.3%0.6%
12 months to Aug 202651.9%45.8%0.8%0.6%
Duty paid, % of value
Show the numbers
PeriodChileArgentinaFranceUnited KingdomAll countries
12 months to Aug 20170.0%3.7%n/a3.7%2.3%
12 months to Aug 20180.6%2.3%3.7%3.7%1.5%
12 months to Aug 20190.1%0.4%n/a3.7%2.3%
12 months to Aug 20201.0%0.2%n/a3.7%2.1%
12 months to Aug 20210.2%0.4%n/a3.7%0.7%
12 months to Aug 20220.1%0.3%n/a3.7%0.3%
12 months to Aug 20230.2%0.4%1.5%3.3%0.3%
12 months to Aug 20240.0%0.4%0.7%2.8%0.3%
12 months to Aug 20250.4%0.2%7.4%2.3%0.4%
12 months to Aug 20260.6%2.6%1.6%1.8%1.6%
PeriodUS importsDuty paidUS exports
12 months to Aug 2026$153.8M−12%1.6%+1.3 pts$28.2M+81%
12 months to Aug 2025$175.2M−21%0.4%+0.1 pts$15.5M−60%
12 months to Aug 2024$221.0M−21%0.3%−0.1 pts$38.5M−61%
12 months to Aug 2023$279.6M+113%0.3%+0.1 pts$99.1M+294%
12 months to Aug 2022$131.2M+90%0.3%−0.4 pts$25.1M+56%
12 months to Aug 2021$69.1M−23%0.7%−1.5 pts$16.1M+34%
12 months to Aug 2020$89.8M−20%2.1%−0.1 pts$12.0M−37%
12 months to Aug 2019$112.8M+4.4%2.3%+0.8 pts$19.2M−18%
12 months to Aug 2018$108.1M+34%1.5%−0.7 pts$23.3M+8.0%
12 months to Aug 2017$80.7M2.3%$21.5M

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
Chile$19.6M81.3%+72.3 pts$18.80/kg+70%2.3%+2.3 pts
Argentina$4.4M18.2%−69.2 pts$11.58/kg+11%3.7%+3.7 pts
United Kingdom$109K0.5%−0.4 pts$12.33/kg−2.2%2.8%+2.8 pts
China$8K0.0%0.0 pts$332.39/kg+25%33.8%−14.9 pts
All countries$24.1M100.0%$16.85/kg+60%2.6%+2.2 pts

The 3 largest suppliers had 98.5% 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
Argentina$10.69/kg$0.14/kg1.3% of price$0.40/kg3.7% of price$11.22/kg+5.9%
Chile$18.98/kg$0.12/kg0.6% of price$0.19/kg1.0% of price$19.29/kg+77%
All countries$15.48/kg$0.13/kg0.8% of price$0.28/kg1.8% of price$15.88/kg+48%

Landed at a US port, Argentina was cheapest, at $11.22/kg: 41.8% below Chile.

Landed cost from Chile rose 77% on a year earlier, to $19.29/kg, mostly on price: $10.74/kg then, $18.98/kg now.

How the market is shifting

Chile gained the most share: 51.9% of US imports over the last 12 months, up from 43.2% in the 12 months before. Argentina lost the most: 45.8%, down from 55.8%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months.

  • Chile
  • Argentina
  • France
  • United Kingdom
  • All countries
Share of US imports
Show the numbers
MonthChileArgentinaFranceUnited Kingdom
September 202450.0%49.6%0.0%0.3%
October 202451.3%45.3%0.0%3.0%
November 202440.7%59.2%0.0%0.0%
December 20242.1%96.8%0.1%0.8%
January 202535.1%64.0%0.0%0.6%
February 202542.8%56.2%0.7%0.2%
March 202577.8%21.3%0.0%0.8%
April 202516.8%83.0%0.0%0.2%
May 202545.5%54.1%0.4%0.0%
June 202560.3%39.0%0.0%0.5%
July 202548.2%51.1%0.0%0.6%
August 20259.0%87.4%2.2%0.9%
September 202511.4%77.1%10.9%0.4%
October 202513.8%83.8%1.3%0.1%
November 202549.5%48.4%0.0%0.7%
December 202534.9%62.6%2.0%0.0%
January 20264.3%93.8%1.2%0.0%
February 202621.5%73.0%1.7%2.1%
March 202656.2%38.4%0.7%1.2%
April 202663.9%34.9%0.0%0.6%
May 202633.4%62.5%1.6%0.0%
June 202676.7%22.0%0.3%1.0%
July 202648.7%51.3%0.0%0.0%
August 202681.3%18.2%0.0%0.5%
Duty paid, % of value
Show the numbers
MonthChileArgentinaFranceUnited KingdomAll countries
September 20240.8%0.1%3.7%3.7%0.5%
October 20240.0%0.2%n/a3.0%0.2%
November 20240.1%0.2%n/an/a0.1%
December 20243.7%0.1%3.7%3.7%0.2%
January 20251.5%0.1%n/a1.9%0.7%
February 20250.0%0.2%0.0%3.7%0.2%
March 20250.1%0.0%n/a3.7%0.1%
April 20252.1%1.0%n/a1.9%1.2%
May 20250.1%0.0%0.0%n/a0.1%
June 20250.3%0.2%3.7%0.0%0.3%
July 20250.0%0.1%n/a0.0%0.1%
August 20250.0%0.0%13.4%0.0%0.4%
September 20250.0%2.9%0.0%0.0%2.3%
October 20250.0%2.7%0.0%0.0%2.6%
November 20250.0%0.0%n/a0.0%0.2%
December 20250.0%0.0%0.0%n/a0.2%
January 20260.0%0.0%0.0%n/a0.0%
February 20260.0%3.7%3.7%3.7%2.9%
March 20260.1%3.7%3.7%1.1%1.8%
April 20260.0%3.7%n/a3.7%1.3%
May 20260.0%3.7%3.7%n/a2.6%
June 20260.0%3.7%3.7%0.0%0.9%
July 20260.2%3.7%n/an/a2.0%
August 20262.3%3.7%n/a2.8%2.6%

Tariff actions touching this product

Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. Search the Federal Register for 2836.91

Where it enters the US

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

  1. Charleston, SC$85.3M · 55.5%
  2. Baltimore, MD$60.9M · 39.6%
  3. Newark, NJ$3.8M · 2.5%
  4. Jfk International Airport, NY$1.8M · 1.2%
  5. Houston, TX$823K · 0.5%

Where US exports go

US exports were $2.1M in August 2026, up 109% from August 2025, and $28.2M over the last 12 months, up 81% on the 12 months before. Fastest-growing market with 3% or more of US exports: Korea, South, up 17410%.

MarketLast 12 monthsSharevs 12 months before
Korea, South$7.4M26.1%+17410%
Germany$5.8M20.6%−6.1%
Australia$3.6M12.8%+3054%
Canada$2.8M10.0%+46%
Jordan$2.2M7.8%+1150%
Mexico$2.2M7.7%−14%
India$1.1M4.0%−63%
United Kingdom$932K3.3%new
Other countries (9)$2.1M7.5%+91%
All countries$28.2M100.0%+81%

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; 79 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.

MarketImportsvs year beforeFrom the USUS share
China$2.33Bin 2025−14%$16K0.0%
Korea, South$337.7Min 2025−30%$55K0.0%
Japan$156.8Min 2025−35%$4K0.0%
Indonesia$67.6Min 2025+2386%$1.8M2.7%
Germany$44.8Min 2025+7.2%$208KUS records $4.0M0.5%
Netherlands$36.2Min 2025−67%$10K0.0%
United Kingdom$17.2Min 2025−49%$767K4.5%
France$15.2Min 2025−34%$27K0.2%

The biggest market outside the US is China, which imported $2.33B of this product in 2025, under 0.1% of it from the US.

Of these, imports into Indonesia grew fastest: up 2386% from 2024 to 2025.

Other products under heading 2836: carbonates; peroxocarbonates (percarbonates); commercial ammonium carbonate containing ammonium carbamate. US trade over the 12 months to August 2026.

ProductUS importsUS exports
Disodium carbonateHS 2836.20$6.2M$1.22B
Carbonates, not elsewhere specified; peroxocarbonates (percarbonates)HS 2836.99$109.8M$46.9M
Sodium hydrogencarbonate (sodium bicarbonate)HS 2836.30$19.4M$101.1M
Calcium carbonateHS 2836.50$28.5M$45.2M
Potassium carbonatesHS 2836.40$16.8M$38.8M
Barium carbonateHS 2836.60$12.4M$1.2M
Strontium carbonateHS 2836.92$11.4M$265K
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.
  • 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.
  • Tariff notices are from the Federal Register, matched to this product by the HTS numbers in their text.
  • 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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