On November 24, 2023, the United Nations Union dispatched four tugboats and arrived at the Stonecutters Naval Base waters on time at 8 o'clock in the morning. First, the tugboat fleet arranged for the "Hai'an" and "Haibo" to assist the "Malaysian Ship 176" from Victoria Harbor to the Stonecutters Naval Base for berthing, and the berthing was successfully completed at 9 o'clock. Subsequently, the tugboat fleet arranged for "Haiyou" and "Hailian" to assist the "Vietnamese Ship 016" from Victoria Harbor to berth at the Stonecutters Island Naval Base, and the berthing was successfully completed at 9:30. On November 27, the Yiulian tugboat entered the military port at 8 a.m. and completed assisting two warships to leave the port at 10 a.m. The entire berthing and departure process was successfully completed in full compliance with the requirements of the garrison, maritime department, and pilot association, demonstrating the safety, punctuality, and efficiency of Yiulian Tugboat.