A massive range of social capital simultaneously constructed in the high growth period are now aged and requires repair or renewal. EJEC provides the most appropriate solution service for the proper maintenance of social capital so that people can continually use rich , high quality social capital for many years to come. At EJEC, we are actively engaged in such challenges as planning to prolong the life of social capital through inspection, surveys and soundness diagnos and the development of materials and methods to repair damage due to various causes of deterioration.