New trade rules target a key material
The Trump administration announced new tariffs on polysilicon, a refined form of silicon used in semiconductors and solar panels. The rules set a minimum import price and add duties on products made with the material.
Polysilicon prices have fallen for years as Chinese producers flooded the market. U.S. officials say the low prices hurt American factories and pose a risk to domestic supply chains.
"We cannot depend on foreign suppliers for the building blocks of our technology," a trade official said in a statement.
Chipmakers and solar firms feel the squeeze
The tariffs touch two industries at once. Chipmakers use polysilicon to grow the crystals that become silicon wafers. Solar panel makers use the same material to build photovoltaic cells.
Industry groups warn that higher input costs will push up prices. Solar developers say new tariffs could slow the pace of new installations, just as power demand grows. Chip buyers face higher costs at a time when AI data centers are consuming record numbers of processors.
Some manufacturers are seeking exemptions, saying the rules will raise their costs more than they protect domestic jobs.
What happens next
The tariffs take effect within weeks, but the details are still being finalized. The Commerce Department will set the exact minimum price and duty rates after a comment period.
Analysts say the outcome depends on how much supply U.S. producers can actually bring online. Domestic polysilicon plants are expanding, but they cannot yet meet demand on their own.
For now, companies on both sides of the supply chain are adjusting their forecasts. The final cost of the new rules will show up in the price of everything from solar rooftops to server chips.
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