Group 1 - The core point of the news is that Hong Kong airline stocks have collectively declined, with China Eastern Airlines dropping nearly 3% and recording three consecutive days of losses, while China Southern Airlines and Air China also experienced declines of over 2% [1] - The cancellation rate for flights between China and Japan is reported to be 40.4%, with approximately 2,195 flights canceled for January, and all scheduled flights on 46 routes between China and Japan being canceled in the next two weeks [1] - Major airlines operating China-Japan routes, including Air China, China Eastern Airlines, China Southern Airlines, Spring Airlines, and Juneyao Airlines, have announced related ticket refund and change policies, with expectations of a peak in ticket refunds continuing until the end of December [1] Group 2 - Specific stock performance includes China Eastern Airlines at 5.030 with a decline of 2.71%, Air China at 6.760 with a decline of 2.31%, and China Southern Airlines at 5.510 with a decline of 2.13% [2] - Cathay Pacific is down by 1.16% at 12.730, while Meilan Airport has decreased by 0.28% to 10.770 [2]