# The U.S. Department of Commerce last week ordered numerous chip equipment companies to halt certain tool shipments to China's ‌second-largest chipmaker Hua Hong.

*semiconductor · news · 2026-04-28 · Devdiscourse*

## Key points

- The U.S. Commerce Department has ordered equipment companies to halt certain shipments to Hua Hong.
- New restrictions also target Huali Microelectronics, preparing a 7-nanometer chipmaking process in Shanghai.
- Hua Hong has developed technologies potentially usable for making artificial intelligence chips.
- Lam Research, Applied Materials, and KLA are among companies believed to have received Commerce letters.
- The restrictions could cause U.S. suppliers to lose billions, particularly for advanced chipmaking plants.

**Companies:** Lam Research, Applied Materials, KLA, Hua Hong Group, Huali Microelectronics, SMIC
**Countries:** United States, China

[Read the full story on Devdiscourse](https://www.devdiscourse.com/article/technology/3889922-exclusive-us-orders-chip-equipment-companies-to-halt-some-shipments-to-hua-hong-chinas-second-largest-chipmaker)

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