Nippon Steel plans to invest $14 billion in U.S. Steel's operations including up to $4 billion in a new steel mill if the Trump administration green lights its bid for the iconic U.S. company, according to a document and three people familiar with the matter.

If the US gets a 'golden share' of Nippon Steel's takeover of US Steel, it would be the latest example of how Washington, D.C. increasingly has a say in the operations of major companies.

The Japanese steelmaker said the investment in electric arc furnaces will increase production capacity while significantly reducing emissions.

President Donald Trump touted a "blockbuster agreement" between U.S. Steel and Japanese company Nippon Steel that he said would keep the U.S. steelmaker in Pittsburgh.

A planned merger of the Japanese and American giants, announced in 2023, has traveled through an election, two presidents and strong union opposition.

Nippon Steel investors and analysts are asking if its $15-billion deal to buy U.S. Steel , backed but not yet approved by President Donald Trump, is positive for the near term, even if its hopes for strong U.

Nippon Steel (OTCPK:NPSCY) (OTCPK:NISTF), the Japanese firm locked in a prolonged battle to acquire U.S. Steel (X), announced plans on Friday to invest 869 billion yen ($6 billion) domestically to boost production using cleaner furnace technology.

Gary Mayor Eddie Melton said Nippon Steel​ plans to pump $1 billion in the Gary Works U.S. Steel facility — the largest steel plant in the country.