1) It is alright to travel Fuzhou from Singapore. No, 14 days quarantine need not be served at Fuzhou. China's policies for travellers: https://www.straitstimes.com/singapore/coronavirus-which-countries-have-imposed-travel-restrictions - scroll down to AMONG COUNTRIES/REGIONS THAT HAVE BARRED/RESTRICTED TRAVELLERS FROM OTHER COUNTRIES " CHINA: Two-week quarantine for travellers who have been to France, Spain, Germany, United States, South Korea, Italy, Iran, Britain, Switzerland, Sweden, Belgium, Norway, Netherlands, Denmark and Austria in past 14 days." 2) Not necessarily but most probably. It is dependent on the province in China you travelled to. (see: https://www.mfa.gov.sg/Countries-Regions/C/China/Travel-Page) "Singaporeans travelling to China, or those currently in China and considering travelling to other provinces within China, may be subject to home or institutional quarantine for 14 days, depending on the province that they are travelling to." 3) You should be eligible for a full refund for the flight if the flight gets cancelled. (see: https://www.xiamenair.com/en-us/passengerService/ground5.html - scroll down to Miss a flight ) "If a passenger misses a flight due to reasons attributed to Xiamen Airlines, we will arrange a seat for the passenger on the next available flight. If the passenger requests a refund, such request will be handled according to the regulations for “Involuntary refunds” set forth in Xiamen Airlines General Conditions of Domestic Carriage for Passengers and Baggage."