U.S. Steel shares rally as Trump approves Nippon takeover with unique government 'golden share'
1. U.S. Steel shares rose 5% after Trump approved merger with Nippon Steel. 2. The merger requires a national security agreement with U.S. government. 3. Trump's order grants U.S. veto power over key company decisions. 4. U.S. Steel to become a subsidiary of Nippon Steel North America. 5. Final regulatory approvals for merger have been received.