Hemlock Semiconductor

Hemlock Semiconductor is a significant American producer of polysilicon, a critical material used in the manufacturing of microchips and solar panels. The company is particularly relevant in light of recent US trade policy changes. President Trump has ordered a new 15% tariff on imported polysilicon products, effective December 4th. This measure is intended to bolster domestic supply chains for microchips and solar panels, aiming to counter China's dominance in these sectors. The administration cited a decline in the US share of global polysilicon production from 50% in 2005 to less than 2% in 2024 as a key reason for the tariff, suggesting that foreign firms have weakened US producers. The tariffs are part of a broader strategy to protect American jobs, boost the economy, and ensure the availability of essential materials for both commercial and military applications.