U.S. President Donald Trump has officially approved the $14.9 billion acquisition of U.S. Steel by Japan’s Nippon Steel, concluding a contentious 18-month process that involved union pushback and two national security assessments.
Trump signed an executive order permitting the deal to move forward, contingent on the companies reaching an agreement with the U.S. Treasury to address national security concerns. Following this, Nippon Steel and U.S. Steel announced that they had finalized the agreement, meeting all conditions outlined in Trump’s directive.
In a joint statement, the firms expressed optimism about the merger, pledging to strengthen the American steel industry. The agreement includes $11 billion in planned investments through 2028 and outlines commitments related to governance, trade, and production. A spokesperson confirmed that Nippon Steel will acquire 100% ownership of U.S. Steel.
However, the companies remained silent on the specifics of the “golden share” promised to the U.S. government—an arrangement expected to give Washington veto power over major decisions. Senator David McCormick of Pennsylvania previously stated that this mechanism was critical to preserving U.S. strategic interests.
Reuters earlier reported that Nippon Steel plans to invest an additional $3 billion beyond 2028, including the construction of a new steel mill.
This landmark acquisition positions Nippon Steel to access billions of dollars’ worth of U.S. infrastructure projects, while shielding it from steep steel tariffs imposed on foreign competitors. The move also saves the Japanese firm from paying a $565 million breakup fee that would have applied if the deal had collapsed.
As the world’s fourth-largest steel producer, Nippon Steel views a presence in the U.S. as essential to its long-term international growth, particularly in the high-grade steel segment. The U.S. steel market has been expanding amidst ongoing global trade tensions.
Despite the long-term strategic value, some investors have raised concerns about the financial burden associated with the sizable investment commitments.
Japan’s government welcomed the approval, with Economy, Trade and Industry Minister Yoji Muto praising the decision. He emphasized that the merger would enhance innovation and deepen economic cooperation between Japan and the United States, especially ahead of the upcoming G7 summit where Prime Minister Shigeru Ishiba is set to meet President Trump.
Approval was never a certainty, especially as Trump’s remarks fluctuated—at times welcoming the investment, while also insisting on American control via the golden share. On May 30, during a political rally, Trump offered a vague endorsement, calling Nippon Steel a “great partner.”
Earlier on Friday, shares of U.S. Steel dipped following comments from a Nippon Steel executive to Japan’s Nikkei, stating that the firm needed a degree of management autonomy to proceed. This came after Trump had reiterated that the U.S. would retain ultimate control under the deal.
The acquisition has faced strong resistance since it was first proposed in December 2023. Both President Biden and then-candidate Trump expressed opposition to the merger, largely due to political pressure in the swing state of Pennsylvania and concerns raised by the United Steelworkers union.
In January 2025, just before leaving office, Biden officially blocked the deal citing national security issues—prompting legal challenges from both companies, which alleged the review process was biased. The Biden administration rejected these claims.
Following Trump’s return to office, a fresh 45-day national security review was initiated in April, ultimately leading to the approval granted this week.
