Changtong p-chemicals co.,ltd.,founded in 1998,has requisitioned a land covering an area of 23000 square meters in 2005 in the economic and technological development zone of weinan city,shaanxi province to meet the enterprise development needs of building a fully integrated high-tech private enterprise that is long-term committed to the production of pharmaceutical raw materials,pharmaceutical intermediates,daily chemicals,food additives and other products.the company has 76 employees.