No maximum weight applies to carry on baggage luggage except in the below stations:
Singapore, Singapore - Changi International Airport () carry on should not exceed 15 lbs. (7kgs)
Beijing, China - Beijing Capital International Airport () Civil Aviation Administration of China (CAAC) requires that domestic hand carry luggage bags should not exceed 10kgs. Individual carrier rules apply for international flights.
Shanghai, China - Pudong International Airport () carry on luggage bags should not exceed 22lbs. (10kgs)