1. MCC North Engineering Technology Co., Ltd. (hereinafter referred to as MCC North) is a holding subsidiary of China Metallurgical Science and Technology Co., Ltd., a fortune 500 enterprise group directly under the central government. It is a large-scale international engineering company with its own technical advantages, engineering design and technology research and development as its core competitiveness, engineering design and general contracting, energy and environmental protection as its main business, sound corporate governance structure, flexible business mode, diversified business scope, advanced technology and equipment and scientific management.
2. MCC Jiaonai Engineering Technology Co., Ltd. (ACRE for short) is a holding subsidiary of China Minmetals Group Co., Ltd. and China Metallurgical Science and Industry Group Co., Ltd. (MCC for short). Its business covers coking chemistry, refractories, lime, automatic control, municipal engineering and environmental engineering, and provides customers with project planning, consulting, design and engineering. MCC Jiaonai, as a state-level technological innovation demonstration enterprise, has a state-level enterprise technology center, and has been ranked among the top 100 enterprises in the survey and design industry in China for many years in succession, maintaining the status of an industrial upgrading innovator with leading technology and high-end service in the field of coking and refractories in China. It is the only member of the Coking, Refractory and Lime Team of the China Metallurgical Construction National Team and undertakes the national task of leading the coking design and construction in China to a higher level.