In Jan., 2017, Shandong Mingda Chemical Technology Co.,Ltd & Shandong Minghui New Materials Co., Ltd both accepted the supervision and verification of the year 2017 by China Quality Certification Center (CQC), Through the strict examination by the assessors of China Quality Certification Center （CQC）to the important links such as raw material, storage, production and transportation, Mingda Chemicals & Minghui New Materials completely passed the supervision and verification of the year 2017 by China Quality Certification Center （CQC）.