Group 1 - The Chinese market regulatory authority has officially launched an investigation into Li Ka-shing's Cheung Kong Group regarding the sale of a port, which could jeopardize the transaction if it violates laws or exceeds risk limits [1][11][22] - Since Li Ka-shing announced the sale of the port, Cheung Kong Group's shares have been continuously declining, resulting in a loss of at least 79 billion [1][11][12] - The planned transaction date of April 2 has been indefinitely postponed, indicating significant government intervention [14][22] Group 2 - The U.S. State Department expressed no surprise at the investigation into Cheung Kong Group, suggesting prior awareness of potential outcomes [3][16][17] - The U.S. has shown a strong interest in regaining control over the Panama Canal, viewing it as crucial for economic leverage against other nations [19][24] - The Chinese government is taking steps to prevent the sale of the port, emphasizing the importance of national interests over individual commercial actions [7][22][32]