Julia Demaree Nikhinson, Associated Press file President Trump gestures after speaking at U.S. Steel Corporation’s Mon Valley Works-Irvin plant, May 30, 2025, in West Mifflin, Pa. One year ago, opponents warned that Nippon Steel’s acquisition of U.S. Steel would cost jobs, weaken American manufacturing, and threaten national security. Today, those predictions have failed to materialize. Workers received promised bonuses, investment is flowing into American mills, U.S. Steel remains headquartered in Pittsburgh, and Washington retains unprecedented oversight authority over the company.
One year later, the deal increasingly looks like a success — not only for the U.S., but for the broader U.S.-Japan alliance.
Recently, company executives and federal officials gathered in Pennsylvania to announce up to $2.5 billion in new investment in the Mon Valley Works, the birthplace of the American steel industry. The announcement offered an opportunity to evaluate one of the most controversial economic and political battles of recent years.
Many understandably feared that foreign ownership would mean layoffs, broken promises, and the gradual decline of a company that has been part of America’s identity for more than a century. Politicians in both parties rushed to oppose the transaction, and the national leadership of the United Steelworkers campaigned aggressively against it. Yet many rank-and-file workers and leaders of local union chapters viewed Nippon Steel’s investment as the best opportunity to modernize aging facilities and secure jobs for the long term. President Biden blocked the deal on national security grounds before President Trump reversed course and approved a revised agreement that included extensive protections for American interests.
Were the critics right? So far, the evidence suggests they were not.
As promised, workers received $5,000 bonuses when the transaction closed. U.S. Steel’s headquarters have not moved. Existing union contracts remain in place. Most importantly, the long-promised investments that were central to Nippon Steel’s case for acquiring the company are beginning to materialize.
Before the acquisition, U.S. Steel had spent decades losing ground to competitors. Once the largest corporation in the world, it had seen its workforce shrink dramatically while many of its facilities aged. The challenge facing the company was not whether change would occur, but whether sufficient investment would arrive to keep it competitive in a rapidly evolving global steel market.
Nippon Steel has committed roughly $11 billion to investments in U.S. operations by 2028. The company recently announced major investments in Pennsylvania and has approved hundreds of millions of dollars for additional projects in Pennsylvania and Indiana. It is also constructing a $1.9 billion direct-reduced-iron facility in Arkansas. Meanwhile, dozens of Nippon Steel engineers have been embedded within U.S. Steel to help implement numerous modernization initiatives.
These are not the actions of a company seeking to strip assets or manage decline. They are the actions of a company investing for the long term.
Skeptics were right to question whether merger promises would survive closing day. Yet the final agreement includes safeguards that are virtually unprecedented. Under the national security agreement negotiated with Washington, the federal government retains a “golden share” that gives it veto authority over relocating headquarters, transferring jobs overseas, reducing investment commitments, or taking other actions deemed contrary to U.S. national interests. The government also maintains direct representation in corporate governance.
In short, Washington secured protections addressing nearly every major concern raised by critics while preserving the benefits of foreign investment.
That does not mean everything has gone perfectly. Last summer, just eight weeks after the Nippon Steel-U.S. Steel deal was finalized, an explosion at the Clairton Coke Works killed two workers and injured ten others, leading regulators to cite the company for safety failures. While this was not necessarily a sign of the merger’s failure, the tragedy was a sobering reminder that many of U.S. Steel’s facilities still face significant challenges and that modernization efforts from Nippon Steel cannot come quickly enough.
At the same time, many residents of Pittsburgh’s steel communities remain frustrated that the broader economic transformation promised by the acquisition has yet to fully materialize, and some facilities are still awaiting major investment.
Those concerns are real and deserve continued attention. But they are the challenges of a company working to modernize and rebuild for the future — not the warning signs of a company being neglected or left behind.
The significance of the U.S. Steel deal extends well beyond the communities where their facilities are located. From the beginning, this was not simply a debate about ownership. It was a debate about whether America remains willing to embrace investment from trusted allies.
That question is particularly important today. Tariffs, trade disputes, and growing uncertainty over the direction of U.S. foreign policy have left many allies questioning Washington’s reliability. Trust, once damaged, can be very difficult to restore.
Japan is not just another foreign investor. It is America’s most important ally in Asia, the largest source of foreign direct investment in the United States, and a critical partner in maintaining stability across the Indo-Pacific. Japanese companies support nearly 1 million American jobs. At a time when Washington is encouraging allies to invest more in America’s future, it cannot simultaneously send the message that such investments are unwelcome.
The logic is especially compelling in steel. China now produces more than half of the world’s steel and continues to benefit from enormous state support. Neither the U.S. nor Japan can effectively compete with that scale alone. Together, however, they can strengthen supply chains, accelerate innovation, and reinforce the industrial foundations that support both economic prosperity and national security.
A year ago, opponents framed this issue as a question of foreign ownership. In reality, it was a question of whether America still believed that trusted allies could contribute to its prosperity and security.
The early results suggest the answer is yes.
U.S. Steel is investing rather than shrinking. Workers have benefited rather than suffered. American oversight remains intact. And the U.S.-Japan alliance is stronger for it.
America’s strength has never come from standing alone. It has come from attracting investment, talent and partnerships from nations that share its interests and values. One year after Nippon Steel’s acquisition of U.S. Steel, that lesson remains as relevant as ever.
Daniel Bob has worked on U.S. foreign and economic policy toward the Indo-Pacific in senior positions in the U.S. Senate, House, fellow at the Council on Foreign Relations, and visiting professor at Keio University.
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