Group 1: US Steel and Nippon Steel Acquisition - The proposed acquisition of US Steel by Nippon Steel was blocked by the Biden administration due to national security concerns, leading to a lawsuit from both companies against the administration [3][4][8] - US Steel's market capitalization has significantly decreased from 20billionin2008toaround8 billion today, reflecting challenges in the steel industry, including competition from lower-cost producers and cyclical economic conditions [5][7] - The acquisition deal was valued at over 14billion,withUSSteelsharesexperiencingajumpof6−811 billion annually, which could significantly benefit companies like Meta and Google if TikTok is banned [14] - Various potential buyers for TikTok have emerged, including Kevin O'Leary and Elon Musk, with valuations for TikTok estimated between 80billionand100 billion [15][16]