Keeb Kwm Kev Loj Hlob
● 2007
Lub tuam txhab tau tsim los ntawm Mr. Hongbin Wang hauv lub npe tuam txhab ntawm Shanghai Rongou Chemical Technology Co., Ltd. Thiab pib nrog kev lag luam xa khoom tawm.
● 2012
Peb cov neeg ua haujlwm tau nce mus txog ntau dua 100 tus neeg ua haujlwm.
● 2013
Lub npe tuam txhab tau hloov mus rau Longou International Business (Shanghai) Co., Ltd.
● 2018
Peb lub tuam txhab tau tsim tsa ib ceg tuam txhab Puyang Longou Biotechnology Development Co., Ltd.
● 2020
Peb pib tsim lub Hoobkas tshiab tsim cov emulsion--HANDOW Chemical.
