By Yuka Obayashi and Noriyuki Hirata TOKYO (Reuters) -Nippon Steel shares rose on Monday after U.S. President Donald Trump approved its $14.9 billion bid for U.S. Steel, clearing a key hurdle in its 18-month pursuit and securing access to a vital market for its growth strategy.

Nippon Steel Corp. won conditional US approval for its $14.1 billion purchase of United States Steel Corp., capping a lengthy saga in a tie-up that will create one of the world’s largest steel companies.

President Trump on Friday cleared the way for Japan-based Nippon Steel to potentially acquire U.S. Steel, though details about the structure of the deal — including a possible "golden share" held by the federal government — remain unclear.

President Donald Trump has signed an executive order paving the way for a Nippon Steel investment in U.S. Steel, so long as the Japanese company complies with a “national security agreement” submitted

President Donald Trump issued an executive order on Friday officially giving the green light to Nippon Steel Corporation's multi-billion-dollar purchase of U.S. Steel Corporation.

President Donald Trump issued an executive order on Friday approving U.S. Steel's merger with Japan's Nippon Steel, after the companies signed a national security agreement with the U.S. government.

President Trump signs executive order allowing U.S. Steel partnership with Japan's Nippon Steel, with an $11 billion investment commitment.