Air China Gold Card can be used for non-Air China flights.

Of course. Air China Gold Card is a VIP card of China International Airlines Co., Ltd., and cardholders can enjoy a series of air travel privileges. According to the regulations of Air China Gold Card, cardholders can enjoy priority check-in, waiting, boarding, baggage check-in and other services when using Air China's self-operated flights and Star Alliance member airlines, as well as extra mileage rewards.