Hebei Xingbai Pharmaceutical Group was founded in 1987, the total assets of 680 million yuan. The main products include Chlortetracycline Feed Grade, Enramycin Premix, Avermectin and etc. At present, the company has 144 fermentation tank. In China, the annual output of Avermectin is the largest (600 tons); the annual output of chlortetracycline feed grade is 10000 tons; enramycin is 2000 tons. All products are strictly enforce the veterinary GMP standards