Weifang Run'an Chemical Technology Co., Ltd.was founded in 2001. Located in Haibin Chemical Park of Weifang city in Shandong province, Weifang Run'an Chemical Technology Co., Ltd.now owns over 23,345sqm of lands and enjoys good location for it is close to Qingdao port of Shandong province. Now, our Weifang base can annually produce 4,000 tons of 2-Amino benzoic acid, 2,000 tons of 2,2'-Dithiosalicylic acid (DTSA), 2,000 tons of Isatoic anhydride(dtbc) and 2,000 tons of Methyl anthranilate/ethyl anthranilate/butyl anthranilate.