This dataset is a market activity dataset, representing a combination of provincial 'magnetite concentrate' markets within Northeast China, forming the regional 'magnetite concentrate' market group for Northeast China. Transportation losses, transportation means, and infrastructure are not included in this dataset; these elements are covered in the respective provincial market datasets. Northeast China includes the provinces of Liaoning, Jilin, and Heilongjiang. Data sources include the China Communications Yearbook, China Energy Statistical Yearbook, China Statistical Yearbook, and customs statistics from the General Administration of Customs.