The brand registered in China is the only recognized trademark in China. China doesn’t recognize the brand registered in any other countries. Thus, our beer brands from Belgium have to register in China, including the Chinese brand name we used for the original brands. The earlier you act the less trouble you get.
The trademark not only protects your brand, but also is useful when your beer is ready to enter a supermarket or major E-commerce platforms like JD, and T-mall, and Taobao is exceptional. The supplier of a supermarket or major E-commerce platform need to get some paper ready: the trademark or the trademark authorization letter from the brewery if the supplier is not the trademark owner. 
Here below are some brands registration of breweries we assisted: