On the basis of the successful implementation of waste heat recovery project (PhaseⅠ), STEC has gained full trust from Huaxin Cement Group, which was rewarded by another 7.5MW WHR project (Phase II) and 15MW biomass power plant project. The three power generation projects form an overall isolated network within the plant, completely solving the impact of unstable power grid fluctuations on the local African market and greatly improving the supply stability and competitiveness of Huaxin Cement in the African market. All personnel of the STEC worked together and overcame difficulties, strictly implementing the safety management and construction quality requirements of the group and the company. The implementation progress was completed half a month earlier than the production date of the clinker production line, and the one-time linkage test was successful, which was highly recognized and praised by the customer.