This dataset is a market activity dataset, representing a combination of 'magnetite ore' markets across different regions of China, i.e., the 'magnetite ore' market group. Transport losses, transport vehicles, and transport infrastructure are not included in this dataset; they are covered in the market datasets for individual provinces. Data references include the China Communications Yearbook, China Energy Statistical Yearbook, China Statistical Yearbook, and customs statistics from the General Administration of Customs.