-1" OR 2+117-117-1=0+0+0+1 --

In December 2000, the first scientific research institute in Shaanxi province was transformed into a high-tech company.

In August 2007, the company became listed on Shenzhen Stock Exchange in China.

In May 2009, we non-publicly issued shares and introduced the strategic investor Xi 'an Aerospace Science and Technology Co., LTD.

In March 2010, the group operation mode was reformed.

In August 2016, the company issued 940 million yuan, joining the industrial layout of the nuclear power environmental protection industry.