This dataset is a market activity dataset, representing a combination of 'specular hematite ore' markets across different regions of China, i.e., the 'specular hematite ore' market group. Transportation losses, transport vehicles, and transportation infrastructure are not included in this dataset; they are covered in the respective provincial market datasets. Data sources include the China Communications Yearbook, China Energy Statistical Yearbook, China Statistical Yearbook, and customs statistics from the General Administration of Customs.