CDT Environmental Technology designs, installs, and operates decentralized sewage treatment systems for rural communities and municipalities in China. The company uses proprietary quick separation technology to treat wastewater in small-scale applications, typically ranging from 5 to 500 tons of sewage per day. CDT functions as a technology and equipment provider, often partnering with large state-owned construction enterprises that secure government infrastructure contracts through Engineering, Procurement, and Construction (EPC) or Public-Private Partnership (PPP) models. These partnerships allow CDT to leverage the state-owned entities' capital and government relationships while CDT provides the specialized hardware and operational expertise. The company generates revenue through upfront equipment sales and construction fees, supplemented by long-term, recurring operation and maintenance contracts. CDT operates an asset-light business model by outsourcing the physical manufacturing of its equipment to third-party suppliers. While the company is winding down a secondary septic tank cleaning business, it is currently expanding into the organic waste-to-hydrogen sector. This new business line aims to convert organic waste into hydrogen or syngas for clean energy, though it is currently in the pilot phase and has not yet produced revenue. CDT focuses its expansion efforts on rural markets in provinces like Fujian and Zhejiang where government wastewater treatment targets drive infrastructure demand.