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