China coal information web's all-round information services
    China coal information web (coalinfo) is a special information web established under the support of the Ministry of Science and Technology and the State Administration of Coal Industry. Keeping a foothold in China's coal sector and facing the markets in China and abroad, "coalinfo" provides web commercial services and sci-tech information services. China coal information web  include: domain name registration, ads on the web, information release, database novelty retrieval, assistance to enterprises' intra-nets, producing databases in laser disc form and dynamic information services (including columns such as coal news, coal market, coal science and technology, supply-demand hot-line, call for business and capital).