U.S. Steel ceases trading on the NYSE as Japan's Nippon finalizes takeover
1. U.S. Steel halted trading after Nippon Steel's acquisition completion. 2. Nippon Steel now owns U.S. Steel as a wholly owned subsidiary. 3. President Trump's opposition to the deal softened post-acquisition. 4. National security concerns previously blocked this acquisition by Biden. 5. Stock now delisted, altering U.S. Steel's market presence.