Chongqing Annaien Environmental Technology Co., Ltd. (hereinafter referred to as Annaien) was founded in 2013 with a registered capital of 5 million RMB. Located in Liangjiang New Area of Chongqing — a national demonstration zone for inland opening-up and a cluster of high-tech industries — the company specializes in the production of IoT monitoring instruments for hydrology, water conservancy and ecological environment sectors.

Annaien has been recognized as a High-tech Enterprise of Chongqing and obtained the ISO9001:2008 Quality Management System Certificate. It holds a full range of qualifications including Utility Model Patents, Design Patents, Software Copyright Certificates, as well as multiple AAA-level certifications: Integrity Management Demonstration Unit, Enterprise Credit Rating, Quality, Service and Integrity Unit, Enterprise Solvency Rating, Service-oriented & Trustworthy Enterprise, Contract-abiding & Creditworthy Enterprise, and Quality-focused & Trustworthy Enterprise.