On August 7, 2013, after multiple communications and a comprehensive and detailed understanding of the technology, production, and service capabilities of Korui Environmental Protection, Guangdong Zhengyuan Huacha Biotechnology Co., Ltd. reached an agreement and signed a cooperation agreement with Shenzhen Korui Environmental Protection Equipment Co., Ltd. on the purified water equipment project.

Zhengyuan Huacha is a leading global supplier of instant tea products. The company independently develops instant tea essence, so that instant tea extracted from natural tea, which is convenient, fast, safe, environmentally friendly and healthy, can become a fashionable drink shared by all mankind. Zhengyuan Huacha's high standard positioning for products puts forward high quality requirements for purified water equipment, which coincides with Shenzhen Kerui Environmental Protection's long-standing pursuit of excellence.

Before cooperating with Zhengyuan Huacha, Carryclean had already collaborated with many well-known enterprises in the biological and pharmaceutical industries, including Shenzhen Lvxue Biotechnology, Mindray Biotechnology, Zhuhai Jianfan, Kangtai Biotechnology, and China Resources Sanjiu, accumulating rich experience in the design and production of purified water equipment. Korui Environmental Protection not only provides equipment, but also professional GMP certification system information, comprehensive solutions, and purified water standard management regulations, which is also praised by all Korui Environmental Protection partners.