This dataset is a market activity dataset, representing a combination of provincial 'magnetite concentrate' markets within the southwest region of China, i.e., the 'magnetite concentrate' market group for the southwest region. Transportation losses, transport vehicles, and transport infrastructure are not included in this dataset; they are covered in the respective provincial market datasets. The southwest region of China includes: Chongqing, Sichuan, Guizhou, Yunnan, and Xizang. Data references include the China Communications Yearbook, China Energy Statistical Yearbook, China Statistical Yearbook, and customs statistics from the General Administration of Customs.