CDT Environmental Technology Investment Holdings Ltd

We are a waste treatment company that generates revenue through the design, development, manufacture, sales, installation, operation, and maintenance of sewage treatment systems and by providing sewage treatment services. We primarily operate in two business lines: sewage treatment systems (also known as rural sewage treatment) and sewage treatment services (also known as septic tank treatment) in both urban and rural areas in the People's Republic of China. For sewage treatment systems, we sell complete systems, construct rural sewage treatment plants, install the systems, and provide ongoing operation and maintenance services for these systems and plants in China for municipalities and enterprise clients. We offer decentralized rural sewage treatment services using our integrated and proprietary system, which incorporates advanced quick separation technology. This technology employs a biochemical process for treating rural sewage economically and sufficiently. Our integrated equipment typically has a lifespan of over 10 years without core component replacement. Our integrated rural sewage treatment system produces high-quality outflowing water, features high degrees of automation, efficient construction and startup, and low operational costs. The equipment can process abrupt increases in sewage inflows and high contamination. Our integrated equipment has a compact structure and is buried underground to minimize environmental changes. We have completed more than 60 rural sewage treatment plants in Fujian, Jiangxi, and Liaoning provinces in China, with a total treatment capacity exceeding 3,400 tons of sewage per day. In 2025, we formally initiated a strategic transformation by entering the green hydrogen sector.