if it's just imported, you don't need a food circulation license. If it involves sales, you must apply for a food circulation license.
Implementation of Food Safety Law of the People's Republic of China (Presidential Decree No.21) 2115-11-11
Article 2 This Law shall be observed when engaging in the following activities within the territory of the People's Republic of China:
(1) Food production and processing (hereinafter referred to as food production), food sales and catering services (hereinafter referred to as food business);
article 35 the state practices a licensing system for food production and marketing. Engaged in food production, food sales, catering services, shall obtain a license according to law. However, the sale of edible agricultural products does not require permission.