Suzhou Goldengreen Technologies Ltd (SGT) is a hi-tech professional manufacturing company, focusing on Organic Photo-Conductor (OPC) drum products. It is located at Suzhou new hi-tech district, near to Shanghai, China. Supported by government science and technology funds and hi-tech venture capital, SGT has self-designed and set up several high-volume mass production lines in recent years. Currently SGT has become the largest local OPC manufacturer in mainland of China.