Where is the market access certificate of China Oil and Gas Pipeline Bureau?

China Oil and Gas Pipeline Bureau Market Access Certificate China Oil and Gas Pipeline Bureau has. China Petroleum and Natural Gas Pipeline Bureau, affiliated to China Petroleum and Natural Gas Group Corporation (CNPC), is a professional pipeline engineering construction company with the special qualification of chemical and petroleum engineering general contracting, engaged in the survey, design, consultation, procurement, construction and management of long-distance pipelines and their ancillary facilities, large and medium-sized storage tanks, electricity and communication. The company has the market access certificate, and all enterprises with the access certificate have been audited by China Oil and Gas Pipeline Bureau, and have the right to engage in the pipeline business of oil, natural gas and related products.