Group 1 - The strategic cooperation agreement was signed between Jilin Civil Aviation Airport Group, Haikou Meilan International Airport, and Hainan Airlines, indicating a collaborative effort to enhance aviation services in Jilin Province [1][3] - The inaugural flight of Hainan Airlines from Changchun to Singapore via Haikou commenced on September 21, showcasing the rapid development of the route within two months [3] - The new route is expected to operate four times a week, with specific flight schedules detailed for both outbound and return journeys [7][10] Group 2 - Hainan Airlines plans to expand its international and regional flight offerings, having already restored and launched over 70 international routes from various cities including Beijing, Shanghai, and Guangzhou [10] - The airline aims to leverage resources from Singapore and Southeast Asia to promote Jilin and Changchun, enhancing the region's international presence [3] - Hainan Airlines is introducing diverse travel products to cater to different passenger needs, including seat selection, prepaid baggage, and business packages [8]