Can Haikou talents be re-applied after being retired after they settle down?

yes. According to the inquiry of official website, the Haikou Municipal Government, within the specified time, Haikou talents can re-apply after being retired. Haikou, nicknamed "Coconut City", the capital of Hainan Province, the fulcrum city of the national "Belt and Road Initiative" and the core city of China Pilot Free Trade Zone, is located in the north of Hainan Island, bordering Wenchang in the east, Chengmai in the west, Ding 'an in the south and Qiongzhou Strait in the north. It is the political, economic, scientific, technological and cultural center and the largest transportation hub of Hainan Province.