WELLE Group Co., Ltd., together with its subsidiaries, provides treatment solutions for municipal, agricultural, and industrial fields in China and internationally. Its offerings include food and kitchen waste treatment, waste leachate and municipal sewage treatment, waste-to-energy, and river remediation for the municipal sector; organic waste utilization and rural domestic sewage treatment for the agricultural sector; and industrial wastewater and flue gas treatment, VOC recovery, and industrial energy-saving and waste utilization for the industrial sector. The company also designs, manufactures, and commissions environmental protection equipment and sorting and recycling equipment. Founded in 2003 and headquartered in Changzhou, China, it was formerly known as WELLE Environmental Group Co., Ltd. and changed its name to WELLE Group Co., Ltd. in June 2026.