China Shenhua Energy's principal activity is the mining and trading of coal. Other activities include power distribution on the mainland, transport, harbour and port, and financial services. The group operates coal mines, and an integrated railway network and a seaport are primarily used to transport the group's coal. The primary customers of the group's coal sales include power plants and metallurgical producers on the mainland. The group also operates power plants on the mainland that are engaged in the generation and sale of coal-based power to provincial/regional electric companies.