In 2007, the company invested 4000 yuan, the construction of a modern plant in Tai'an sewage treatment plant;
In 2008, the investment of more than 3000 yuan, a strategic cooperation with the Beijing Institute of aerospace power, large waste collection of leading and incineration plant built in Tai'an area;
In 2009, 30000000 yuan investment in environmental protection, the biochemical treatment equipment factory in Weifang construction leading;
In 2011, 20000000 yuan investment, the new MVR high salt sewage treatment device;
In 2013, 180000000 yuan investment in the new garden Tai'an new factory, is committed to the employees, the local villagers to create a comfortable environment for green environment;
Third environmental protection device in 2014 to invest 20000000 construction of Tai'an plant is in progress......