On December 13, British CDM project cooperation firms visited Digang Conch for investigating carbon dioxide emission reduction data. Digang Conch's leader and related people warmly met with the visitors.

 After the detailed studying documents and data , exchanging with the related staffs, the British CDM project cooperation firms were satisfied to this tour, and expressed their thanks for the company's reception.

The CDM project distributed in 15 profession domain, and the building materials industry was  one of important key. In many years, Conch devoted herself to the energy conservation  and environmental protection, insisted on the sustainable development path, largely invested in new energy conservation industry and so on, including WHG project, joined the CDM project, protected the environment, shared resource, pursued the long-term development.