This dataset is a market activity dataset, comprising the provincial-level "specular hematite ore" markets within the Northeast China region, forming the "specular hematite ore" market group for Northeast China. Transportation losses, transport vehicles, and transportation infrastructure are not included in this dataset; they are covered in the respective provincial market datasets. Northeast China includes the provinces of Liaoning, Jilin, and Heilongjiang. Data sources include the China Transport Yearbook, China Energy Statistical Yearbook, China Statistical Yearbook, and customs statistics from the General Administration of Customs.