We got the certificate of ISO9001:2000 in december, 2005. 
On September 21, 2006, our Shaoguan Lvyuan Environment Protection Technology Co., Ltd. got the record certificate for the business of non-pharmaceutical precursor chemicals.
On October 16, 2006, our Shaoguan Yalu Environment Protection Industry Co., Ltd. got the certificate for the business of hazardous chemicals
On September 18, 2006, our Shaoguan Yalu Environment Protection Industry Co., Ltd. got the record certificate for the business of non-pharmaceutical precursor chemicals.
In April, 2008, we got operational certificate of national environment pollution treatment facilities, A-level certificate for the treatment of industrial sewage and temporary certificate for the treatment of domestic sewage (A-level).