港股食品股午后持续下挫，中国旺旺跌超6%

Group 1 - The core viewpoint of the article highlights a significant decline in Hong Kong food stocks, with several companies experiencing notable drops in their share prices [1] Group 2 - China Wangwang (00151.HK) saw a decline of over 6% [1] - Zhou Hei Ya (01458.HK) experienced a drop of over 4% [1] - Other companies such as Master Kong Holdings (00322.HK), Ausnutria Dairy Corporation (01717.HK), China Feihe (06186.HK), China Shengmu Organic Milk (01432.HK), and Mengniu Dairy (02319.HK) all fell by more than 1% [1]