2011

The founders formed a team, and Hangzhou Renren Environmental Technology Co., Ltd. was established on the bank of West Lake.

2016

Won the "Hangzhou High-tech Enterprise", "Zhejiang Science and Technology Enterprise".

2018

Invested in the establishment of Hangzhou Association Environmental Engineering Co., Ltd. Formally entered the engineering field, and created a tax of over one million in the first year. Invested in the establishment of Shanghai Yuqian New Material Technology Development Center.

2019

Won the "National High-tech Enterprise".

2020

The new standard factory building in Deqing, Huzhou, invested and constructed by the company was officially opened.