Preekem Scientific Instruments, Co., Ltd. is a relatively young and energetic company dedicated to microwave system research and related sample pre-treatment technical innovation. In 2000, it was established in Shanghai, China. In June 2004, PreeKem obtained the ISO 9001:2000 certificate. Its products are highly reliable and won several industrial awards. Thh TOPEX Microwave Digestion System won the BEST Product of 2013 by the Analytical Instrument Association of China Instrument and Control Society.