Hebei Zhongrun Pharmaceutical Co., Ltd (CSPC Zhongrun) is one of the world's largest producers of bulk antibiotic active pharmaceutical ingredients. Its factory in Shijiazhuang produces both penicillin and cephalosporin series API.CSPC Zhongrun penicillin and cephalosporin Betalactam antibiotic products include 16 varities of API and intermediates. The penicillin series includes penicillin G potassium crude, penicillin G potassium, penicillin G sodium, 6-APA, amoxicillin trihydrate, ampicillin trihydrate and ampicillin sodium. CSPC Zhongrun's annual capacity and market share have been ranked amongst the best in the world. The cephalosporin series includes intermediate 7-ACA, cefazolin sodium, cefazolin acid and ceftriaxone sodium. The annual capacity of 7-ACA is among the world's largest. Meropenem API is also produced.