This dataset is a market activity dataset, representing a combination of Specularite ore markets in different regions of China, i.e., the Specularite ore market group. Transport losses, means of transport, and transport infrastructure are not included in this dataset; they are included in the provincial market datasets. Data reference sources include the Year Book of China Transportation & Communications, China Energy Statistical Yearbook,China Statistical Yearbook, and the General Administration of Customs statistical data, etc.