Only then did I know that Huijin was a subsidiary of Sunshine Insurance. Is this an advantage?

Hello! Sunshine Life Insurance belongs to Sunshine Insurance Group (subsidiary). Sunshine Insurance is a new company with strong backing (Sinopec, China Southern Airlines, Freight Changhang, China Aluminum Industry and Guangdong Electric Power), with annual income of 1O, 0.4%. It is one of the two premium companies and the only insurance company with Sunshine Ronghe Hospital. Soon, sunshine hospitals will be all over the country.

Further reading: How to buy insurance, which is good, and teach you how to avoid these "pits" of insurance.