US Steel to Keep Illinois Plant Running Amid National Security Concerns

Federal Action Reverses US Steel’s Granite City Shutdown Plan

In a significant policy shift, US Steel will keep its Illinois plant running after U.S. government intervention. The  facility, located in southern Illinois, had been set to reduce steel rolling operations under new owner Nippon Steel, a Japan-based company. However, the U.S. Department of Commerce exercised its rarely-used “golden share” to block the move, citing national security concerns.

This decision comes amid rising scrutiny of foreign investments in strategic U.S. industries. According to AP News, the White House took direct action under a recent national security agreement with Nippon Steel. Commerce Secretary Howard Lutnick reversed US Steel’s earlier decision, preventing layoffs and keeping slab processing active at the Illinois site.

Although the Granite City mill has not produced hot steel since 2023, it continues to roll and finish imported slabs. This makes it a crucial part of the U.S. steel supply chain. The government’s action keeps the facility operational, protecting hundreds of jobs and supporting local manufacturing.

National Security and Domestic Steel Capacity in Focus

The intervention highlights how steel remains central to U.S. industrial and national security policy. The “golden share” is typically used in defense-related assets. It was invoked over concerns about outsourcing key processing functions—even to allied nations like Japan.

This move aligns with current U.S. policy that supports reshoring and domestic job protection. In Granite City’s case, the decision aims to protect both regional economies and national industrial capacity.

Granite City plays a vital role in supplying steel for industries such as construction and automotive manufacturing. Its location in the Midwest makes it especially important for the U.S. industrial corridor. Keeping the plant running helps reduce risks tied to global supply disruptions and foreign control.

SuperMetalPrice Commentary:

The U.S. government’s decision to preserve operations at Granite City reflects deeper shifts in metals and security policy. As reliance on foreign suppliers grows, governments are reasserting control over strategic infrastructure. We expect more interventions in sectors like battery metals, rare earths, and EV materials. This action also sends a clear message: future foreign acquisitions involving U.S. commodity assets will face sharper oversight—especially when national jobs and processing capabilities are involved.