Chinese businessman Xiu Laigui had an estimated net worth of $1.1 billion as of March 2012 according to Forbes. Xiu Laigui currently chairsXiuzheng Pharmaceutical Group that is considered as one of the biggest pharmaceutical companies in China. He was also the president of the group. The firm has 18 subsidiaries. Recently, he acquiredLiaoning-basedTianlong Pharmaceutical for an undisclosed sum. The company specializes on creating and manufacturing injections that are utilized in freeze drying medicine tablets.