2001年12月28日，格林美由创始人许开华教授基于绿色生态制造（G—Green E—Eco M—Manufacture）的理想在深圳设立，先后于深圳证券交易所（股票代码:002340）和瑞士证券交易所上市，总股本51.36亿股，净资产187.62亿元，年产值300余亿元，员工总数10000余人。公司在国内率先提出"资源有限、循环无限"的产业理念，积极倡导通过开采城市矿山的商业模式来"消除污染、再造资源"，推进循环型社会的发展，遏制全球温室效应，是世界开采城市矿山的领导者与世界新能源产业的推动者，是世界领先的废物循环产业集团、世界新能源行业的核心供应商与中国循环经济领军企业。2023年，公司入围"中国民营企业500强"（484位），蝉联"中国制造业企业500强"（371位）与"中国制造业民营企业500强"（315位），入围2022福布斯中国可持续发展工业企业TOP50、2022胡润中国民营企业可持续发展百强榜（位列第7位）。
公司的主营业务归属废弃资源综合利用行业与新能源行业，形成了"城市矿山开采+新能源材料制造"的双轨驱动业务模式。在城市矿山开采领域，公司回收利用废旧动力电池、电子废弃物、报废汽车、废塑料与镍钴锂钨战略资源，主要再制造镍钴锂钨、金银铂钯稀缺资源、超细钴镍钨粉末材料与改性塑料；在新能源领域，公司制造动力电池用三元前驱体、三元正极材料与3C数码电池用四氧化三钴材料，是世界新能源供应链的头部企业。
公司主导组建了国家电子废弃物循环利用工程技术研究中心、国家能源金属资源与新材料重点实验室、国家企业技术中心等国家级创新平台，构建了中国在废物循环、资源再生、材料再制造的系统技术体系与知识产权体系，在全球申请专利3767项，牵头制定/参与国家与行业标准475件，取得一批重大科技成果，先后获得国家科技进步奖2项、省部级一等奖10项。
Based on the concept of "G-Green E-Eco M-Manufacture", GEM Co., Ltd. (hereinafter referred to as GEM) was founded by Professor XU Kaihua in Shenzhen on December 28, 2001. GEM has been listed on Shenzhen Stock Exchange (stock code: 002340) and, in 2022, on the Swiss Stock Exchange. With a total share capital of 5.136 billion shares, net assets of 18.762 billion RMB, annual production value exceeding 30 billion RMB, and a workforce of over 10,000 employees, GEM ranks among the top 500 private enterprises in China (484th place), the top 500 manufacturing companies in China (439th place), the top 500 private enterprises in China's manufacturing industry (315th place), the top 50 environmental companies in China (2nd place), is listed on the 2022 Forbes China Sustainable Development Industrial Enterprises TOP50 and the 2022 Hurun China Private Companies SDG Readiness 100 List (7th place). GEM has now become a leading enterprise in China's circular economy, a global leader in waste recycling, and a top-tier supply chain company in two major industries: the global tungsten carbide industry and the new energy industry.
GEM's main business belongs to the comprehensive utilization of waste resources and the new energy industry, forming a dual track driven business model of "urban mining+new energy material manufacturing". In the field of urban mining, GEM recycles and utilizes waste power batteries, electronic waste, scrapped cars, waste plastics, and nickel cobalt lithium tungsten strategic resources, mainly remanufacturing nickel cobalt lithium tungsten, rare resources of gold silver platinum palladium, ultrafine cobalt nickel tungsten powder materials, and modified plastics; In the field of new energy, GEM manufactures ternary precursors, ternary cathode materials for power batteries, and cobalt tetroxide materials for 3C digital batteries, making it a leading enterprise in the world's new energy supply chain.
GEM has led the establishment of national innovation platforms such as the National Engineering Research Center of Waste Electrical and Electronic Equipment (WEEE) Recycling, the National Energy Metal Resources and New Materials Key Laboratory, and the National Enterprise Technology Center. It has also established a systematic technical and intellectual property system for waste recycling, resource regeneration, and material remanufacturing in China. It has applied for 3767 patents globally, led the formulation/participation of 475 national and industry standards, and achieved a number of major scientific and technological achievements. It has won 2 National Science and Technology Progress Awards and 10 Provincial and Ministerial First Prizes.