Does Suqian belong to cold area A or B?

It belongs to hot summer and cold winter areas.

20 12, Suqian Housing and Urban-Rural Development Bureau issued the Notice on Yancheng, Huai 'an and Suqian Implementing the Design Standards for Building Energy Efficiency in Hot Summer and Cold Winter Areas. Because of the high cost of building thermal insulation protection in cold areas, and according to meteorological data, Suqian city has reached the standard of hot summer and cold winter areas. After applying to the national and provincial governments, the Jiangsu provincial government issued the Notice on Implementing Standards in Yancheng, Huai 'an and Suqian.