This dataset is a market activity dataset, it is a combination of the provincial Specularite ore markets within the North China region, that is, the North China Specularite ore market group. Transport losses, means of transport and transport infrastructure are not included in this dataset; they are included in the respective provincial market datasets. The North China region includes: Beijing, Tianjin, Hebei, Shanxi, and Inner Mongolia. Data sources include the China Transport Yearbook, the China Energy Statistical Yearbook, the China Statistical Yearbook, and the General Administration of Customs Statistics, etc.