What tariff does the U.S. charge on glass fiber and reinforcements from China?

In 2025, glass fiber and reinforcements imported from China paid an effective tariff rate of 49.5%, calculated as duties collected divided by customs value, which captures Section 301/232 overlays and program use that statutory rates miss.

How much glass fiber and reinforcements does the U.S. import from China?

The U.S. imported $186.6M of glass fiber and reinforcements from China in 2025, 13.2% of the tracked glass fiber and reinforcements it imports, ranking China the 3rd-largest named source. The chart above traces the full history.

What does freight add on glass fiber and reinforcements from China?

Cost, insurance, and freight ran 15.99% of customs value on glass fiber and reinforcements from China in 2025. That stacks on the duty, so the landed cost runs higher than the effective rate alone implies.

Tariff Monitor

U.S. Imports of Glass fiber and reinforcements From China

In 2025, U.S. importers brought in $186.6M of glass fiber and reinforcements from China, paying an effective tariff rate of 49.5%. That makes China the 3rd-largest named source of this family, at 13.2% of tracked glass fiber and reinforcements imports. The family-wide effective rate is 12.2%, so China's goods pay 37.3 points more than average. Freight and insurance add 15.99% on top of customs value. Tracked-family figures are a floor on total bilateral trade, from USITC DataWeb data.

The current reading

Import value: $186.6M of glass fiber and reinforcements from China in 2025, customs value.
Effective tariff rate: 49.5%, calculated duties ÷ customs value, 37.3 points above the 12.2% family average.
Share of the family: 13.2%, #3 named source of glass fiber and reinforcements.
Freight and insurance: 15.99% of customs value, on top of the duty.
History depth: 3 years of annual named-source boards.

Frequently asked questions

What tariff does the U.S. charge on glass fiber and reinforcements from China? In 2025, glass fiber and reinforcements imported from China paid an effective tariff rate of 49.5%, calculated as duties collected divided by customs value, which captures Section 301/232 overlays and program use that statutory rates miss.
How much glass fiber and reinforcements does the U.S. import from China? The U.S. imported $186.6M of glass fiber and reinforcements from China in 2025, 13.2% of the tracked glass fiber and reinforcements it imports, ranking China the 3rd-largest named source. The chart above traces the full history.
What does freight add on glass fiber and reinforcements from China? Cost, insurance, and freight ran 15.99% of customs value on glass fiber and reinforcements from China in 2025. That stacks on the duty, so the landed cost runs higher than the effective rate alone implies.

About this data

Reference statistics derived from USITC published data. Not a customs ruling; verify rates with a licensed customs broker before relying on them.

Last reviewed 2026-05-12.