MER GROUP (Handan Metallurgical Engineering & Research Co., Ltd. ), affiliated to Handan Dingzheng Heavy Machinery Co., Ltd., is a national high-tech enterprise integrating engineering design, equipment R&D, manufacturing, international trade and operation management. Founded in 2010 with a registered capital of 128 million RMB and headquartered in Handan's Chengan Industrial Park (a strategic hub with convenient transportation), it has become a leader in China's lime and metallurgical equipment industry and a 2025 candidate for Hebei Provincial Characteristic Industry Clusters "Leader". Adhering to "Technology-driven, Quality-first", MER GROUP has expanded from initial lime kiln R&D to cover the entire metallurgy, mining and environmental protection industrial chain over 16 years. As a vice-chairman unit of the China Lime Association, it has participated in formulating 2 industry standards and undertaken numerous key domestic and foreign projects. Its core businesses include metallurgical, mining, pelletizing equipment, ductile iron pipes (DN80-DN2600mm), hot metal treatment, coolers, oxidized pellets, direct reduced iron, environmental protection equipment, as well as EPC general contracting and operation services. Key products include 300, 000-5 million tons/year oxidized pellet sets and 100, 000-500, 000 tons/year activated lime sets; Its self-developed lime twin-shaft kiln boasts 30% higher thermal efficiency, 600-ton daily output and <0.5% failure rate. Products are sold in 30 Chinese provinces and 15 overseas countries, serving over 200 customers. With over 300 mu of factory area (90, 000square meters workshops), advanced equipment (e. g., φ16m gear hobbing machine, 360-ton lifting capacity) and 70, 000-ton annual processing capacity, MER GROUP owns mining resources and processing bases to ensure industrial chain stability. Its R&D team, with 30% senior engineers, invests 8% of annual revenue in R&D, holds 32 patents and cooperates with international enterprises like Italy Qualical, with core products recognized as Hebei Provincial Key Technical Equipment in 2023. Certified by ISO9001, ISO14001 and ISO45001, MER GROUP has Grade B building materials design qualification and a full-process service system (72-hour response, 24-hour on-site service). Its ductile iron pipes meet ISO2531/EN545 standards, supported by professional foreign trade and transportation teams. Looking ahead, MER GROUP will focus on low-carbon metallurgy and hydrogen-based reduction, promote product intelligence and green upgrading, expand the international market, and strive to become a world-class heavy machinery enterprise, empowering global metallurgy and mining development.