Nippon Steel’s American victory could set a negative precedent for Japanese M&A

Nippon Steel’s recent acquisition of United States Steel for $14.9 billion has raised eyebrows in both Tokyo and New York for several reasons. The deal, taking place in a U.S. election year and involving the steel industry, has crossed boundaries that usual Japanese outbound mergers and acquisitions do not breach. Despite this, the Trump administration’s decision to resolve any concerns with a golden share, granting significant veto power, creates a concerning precedent for future deals.

This acquisition marks a significant win for Nippon Steel after facing opposition from both President Trump and his predecessor, Joe Biden. With most of Nippon’s 66 million tons of steel production coming from Japan and their domestic market shrinking, the company has been seeking international expansion under the guidance of Eiji Hashimoto. The recent increase in tariffs on imported steel to 50% by the White House could potentially bolster the target company’s profitability, making the premium Nippon paid more favorable.

Although the deal may seem promising in theory, investors have shown concern by driving Nippon’s shares down by 10% since the announcement. The terms of the national security agreement linked to the deal require the U.S. government’s approval for any decisions related to investments, plant closures, or layoffs. Additionally, the perpetual preferred stock held by the government will influence aspects such as employee salaries, procurement practices, and potential acquisitions.

These stringent conditions pose challenges for Nippon Steel as an established player currently undergoing significant technological transformations. This deal, ranked as the fifth-largest Japanese acquisition in the United States to date, will set a precedent for future international transactions, particularly in light of increasing protectionism.

Japanese companies have been increasingly eyeing the U.S. market, with $70 billion in outbound deals announced so far in 2025, making it the strongest year for cross-border M&A between the two countries since 2018. The rise in tensions between the U.S. and China could potentially benefit U.S.-Japan business relationships. However, the broader trade hostilities by the U.S., including levies on key allies, prioritize domestic control, potentially influencing the landscape of global dealmaking moving forward.

In conclusion, Nippon Steel’s recent acquisition of United States Steel, while presenting a strategic opportunity for growth, has introduced new challenges and limitations due to the terms of the national security agreement. As protectionism rises in the U.S., the intricate conditions of this deal may shape the future of international business transactions, tightening the terms and controls on global trade agreements.