众信旅游：公司已在海南地区设立三家子公司

Group 1 - The core viewpoint of the article is that Zhongxin Tourism has established three subsidiaries in Hainan and is actively engaging in tourism-related businesses in the region [1] - The company plans to continuously monitor policy information in Hainan and is focused on expanding its local business operations [1] - Zhongxin Tourism aims to seize long-term development opportunities in Hainan [1]