Geostrategic Daily

CSIS (Center for Strategic and International Studies) · 8 September 2026

Polysilicon and the Merits of Trade Measures as Industrial Policy

On August 6th, President Trump invoked Section 232 to impose minimum import prices and tariffs on foreign polysilicon and derivative products, aiming to boost domestic manufacturing capacity. The U.S. share of global polysilicon production fell from 50 percent in 2005 to under 2 percent today, and prior trade measures have been largely unsuccessful.

Why it matters: This action illustrates the theme of trade policy as industrial policy, highlighting the challenges of using tariffs and price floors to rebuild domestic manufacturing capacity in a globally competitive market.

critical minerals · green tech supply chain · sanctions export controls

Record

Source
CSIS (Center for Strategic and International Studies) (tier 1)
Published
8 September 2026
Link
https://www.csis.org/analysis/polysilicon-and-merits-trade-measures-industrial-policy
Content depth
full
Regions
americas, asia-pacific
Subregions
us, china
Actors
United States, China
Edition
2026-09-09

Grounding

Verbatim spans from the source text that support the summary above.

President Trump invoked Section 232 of the Trade Expansion Act of 1962 to impose minimum import prices (MIPs) on imports of foreign-produced polysilicon
the United States has seen its share of global polysilicon production capacity fall from 50 percent in 2005 to under 2 percent today
prior attempts to protect the U.S. polysilicon industry through trade measures alone have been largely unsuccessful