Hainan nanguo food group. Xu Dandan is the daughter of Xu Guohua, the boss of Hainan Nanguo Food Group, and his wife Liu Ying. Her name is Xu Dandan. Hainan Nanguo Food Group mainly uses coconuts, coffee, peppers, yellow bell peppers and other tropical fruits and vegetables unique to Hainan as raw materials to produce solid drinks, sweets, biscuits, dried fruits, condiments, fully nutritious functional foods and other products, which sell well in domestic and foreign markets.