I am Malaysian and working in Singapore, and already booked ticket to hongkong mid September and will transit to Haungzhou to visit my friend whom will show me around china for holiday for 10 to 12 days will be staying at friend's place throughtou there, after that will go to Hong Kong for 1 or 2 days visiting and then leaving from Hongkong back to Singapore.Do i need to apply visa to Hongkong or need to apply multi entry visa? Please advise and the charges $$$