Recently, CNCEC ECEC held the HAZOP/LOPA review meeting for the phase I of Sonangol Lobito Refinery Project. The Chairman of HAZOP made a detailed presentation of the HAZOP/LOPA reviewing process and risk matrix. CNCEC ECEC made an introduction of the analysis content and design philosophy, put forward the requirements for the review work and made arrangements in accordance with the HAZOP/LOPA procedure document. The HAZOP review meeting identified the potential risks for the plant operation, improved the existing safety control measures, and laid a solid foundation for the long term safe and stable operation of the plant in the future.