Development History
● 2007
The company was established by Mr. Hongbin Wang in the company name of Shanghai Rongou Chemical Technology Co., Ltd. And start to deal with export business.
![history1](http://www.longouchem.com/uploads/history1.jpg)
● 2012
Our workers have increased to more than 100 employees.
![history2](http://www.longouchem.com/uploads/history2.jpg)
● 2013
Company name has changed to Longou International Business (Shanghai) Co., Ltd.
![history3](http://www.longouchem.com/uploads/history3.jpg)
● 2018
Our company established a branch company Puyang Longou Biotechnology Development Co., Ltd.
![history4](http://www.longouchem.com/uploads/history4.jpg)
● 2020
We start to build new factory producing emulsion--HANDOW Chemical.
![history5](http://www.longouchem.com/uploads/history5.jpg)