The flood problem in big cities in Indonesia has always been a routine agenda every year. PT.TBS develops the ability to assist the government in big cities in the maintenance, revitalization of city culverts and waterways and drainage. Confined-space work areas and work environments contaminated with chemicals and bacteria require special skills and equipment. PT. TBS is a trusted partner for big city governments, regional companies that manage clean water, the chemical industry, and handling B3 materials.