On top of the symbolic rice cakes and traditional must-haves like steamed fish and chicken, Guangzhou resident Li Haining will also be savoring Norwegian salmon and Canadian shellfish when her family sits down for their annual reunion dinner on Wednesday.

The 29-year-old ordered the dishes online from Tmall, the country's largest business-to-consumer (B2C) retail platform and arm of New York-listed Chinese tech giant Alibaba.