HANKOOK Suan Co., Ltd. is a South Korean company specializing in stormwater management. Established in 2002, the company focuses on developing advanced rainwater management systems and technologies. HANKOOK Suan offers a variety of solutions, including planning, construction, and maintenance of rainwater detention tanks, infiltration systems, and other eco-friendly water treatment devices. The company has patented several technologies and is known for its innovation in reducing non-point pollution and promoting sustainable water management practices.