Nippon Steel Corp (NPSCY) (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.

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.

President Donald Trump’s pivot to champion Nippon Steel Corp.’s bid to buy US Steel Corp. raises the prospect of fresh positive momentum for Japan’s sluggish negotiations with the US over tariff relief.

Nippon Steel plans to spend $14B on US Steel's operations including up to $4B in a new steel mill if the Trump administration approves its takeover bid, Reuters reports.

Nippon Steel plans to invest over 860 billion yen ($5.98 billion) to introduce electric furnaces at its three domestic plants to reduce carbon emissions, public broadcaster NHK said on Friday.

Nippon Steel Corp., the Japanese company embroiled in lengthy battle to buy US Steel Corp., said it plans to spend 869 billion yen ($6 billion) at home to expand output from cleaner furnaces.