This dataset is a market activity dataset, representing a combination of provincial markets for magnetite concentratewithin the southwestern region of China, i.e., the Southwest Chinas magnetite concentrate market group. Transportation losses, modes of transport, and transport infrastructure are not included in this dataset but are included in the provincial market datasets. Southwest China includes Chongqing, Sichuan, Guizhou, Yunnan, and Tibet. Data references include sources such as the China Transport Yearbook, China Energy Statistics Yearbook, China Statistical Yearbook, and General Administration of Customs statistical data, etc.