Yoshiaki Naba

CTI Engineering International Co., Ltd. engages in the engineering consultancy services of study, planning, designing, construction supervision, and project management for the infrastructure development and socio-environmental improvement in foreign countries. Its services include the following engineering areas such as river improvement and flood control, urban drainage, water resources management, sewerage, land transport, water quality management, solid waste management, riparian structure, dam structure, road structure, bridge structure, participatory approach to development, organizational and institutional strengthening, socio economic improvement, environmental assessment, and others. The company was founded on April 1, 1999 and is headquartered in Tokyo, Japan.