Yunnan Chihong International Germanium Industry Co., Ltd., established on 2018-03-16, The business scope includes germanium materials,Organic germanium,Germanium jewelry,gold,Processing of silver jewelry,Sales;optical products,Solar germanium polishing sheet,Development of optoelectronic technology,develop,Production,Sales and Import and Export;Construction of optical industry and other optoelectronic industry projects,Management,consultation service;Optoelectronic and electromechanical equipment and instruments,metallic material,Minerals(non-coal products),Photoelectric material,Artificial crystal material chemical products(Does not contain a class of precursor chemicals and dangerous chemicals)production and sales of;Germanium products,Equipment import and export;optical technology,Import and export of production technology;Production and sales of germanium tetrachloride.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Hengyang Hengrong High Purity Semiconductor Materials Co., Ltd., established on 2014-06-27, The business scope includes the production and manufacture of high-purity semiconductor materials,Sales and trade of related raw materials.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Yunnan Dongchang Metal Processing Co., Ltd., established on 2005-06-15, The business scope includes according to the national law,Administrative Regulation Requirements,Enterprises handle environmental protection,After the license of safe production,Production and sales of germanium series products can be carried out;Mineral product purchase and sale;Goods import and export business(Except for country restricted items)*(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Western electric is the sole producer of the Western Electric Vacuum Tube.

Part of Yunnan Lincang Xinyuan Germanium Industry Co., Ltd., Wuhan Yunjingfei Optical Fiber Material Co. Ltd. is a Chinese company located in Wuhan that manufactures optical fiber materials.

Yunnan Germanium Industry is a manufacturing company. They produce organic germanium, zone-fused germanium, infrared germanium optical components, and an infrared thermal imaging camera. It also provides optical fiber, germanium tetrachloride, high-purity gallium arsenide single crystal and wafer, and indium phosphide single crystal and wafer.

Kunming Huiquan High Purity Semiconductor Materials Co., Ltd., established on 2000-07-25, The scope of business includes the production and sale of self-produced germanium,indium,catalyst(catalyst)High-purity semiconductor materials.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Evonik Operations GmbH manufactures specialty chemicals. The company was founded on August 23, 2000 and is headquartered in Weatherford, TX.

Yunnan Chihong Zinc & Germanium Co., Ltd. engages in the exploration, mining, metallurgical, deep processing and sale of zinc, lead and germanium. It provides zinc products, lead products, silver ingots, germanium, gold, sulfuric acid, and electrolytic copper. The company was founded on July 18, 2000 and is headquartered in Qujing, China.

First Rare Materials Co. Ltd. is a private company headquartered in Qingyuan, China, that operates in several countries. The firm operates as holding company through its subsidiary develops, produces and distributes specialty materials. It was founded in 2003. Liu Liu is the current CEO of the firm.

Hubei Tuocai Renewable Resources Co., Ltd., established on 2014-07-23, Business scope includes licensed projects:Import and export(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments,The specific business items are subject to the approval documents or licenses of relevant departments)General project:Renewable resource processing;Recycling of renewable resources(Removal of productive scrap metal);Resource recycling technology research and development;Sales of renewable resources;Sales of high-purity elements and compounds;Sales of electronic special materials;Research and development of special electronic materials;New material technology research and development;Sales of new metal functional materials;Natural science research and experimental development;Non-ferrous metal alloy sales;Sales of high-performance non-ferrous metals and alloy materials;Sales of Rare Earth Functional Materials;Metal Material Sales;Non-metallic scrap and scrap processing;synthetic material manufacturing(Free of Hazardous Chemicals);Synthetic Materials Sales;Productive Scrap Metal Recycling;Integrated circuit chips and product sales;Sales of superconducting materials;New material technology promotion service(Except for licensed business,Can independently operate projects that are not prohibited or restricted by laws and regulations)

Sichuan High Germanium Renewable Resources Co., Ltd., established on 2014-11-11, The business scope includes the regeneration and processing of germanium-containing waste resources;Production of high-purity germanium dioxide,wholesale;Metal,Wholesale of Rare and Precious Metals;Research and development of new energy materials and electronic materials,wholesale;Export the rare metals and related metallurgy produced by the company itself,Chemical Products;Import the production of the enterprise,Raw and auxiliary materials required for scientific research,Equipment,Instrumentation and its accessories.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Beijing Yujiaming Tri-State Ion Science Research Institute Co., Ltd., established on 2008-05-08, Business scope includes technology research;Technical extension services.

Nanjing Germanium Technology Co., Ltd. manufactures photoelectric and infrared materials. It produces and distributes germanium, indium, and gallium products. The company was founded in July 1960 and is headquartered in Nanjing, China.

Yunnan Kaiyu Optoelectronics Technology Co., Ltd., established on 2019-12-23, Business scope includes general items:Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Manufacture of non-metallic mineral products;Metal Ore Sales;Domestic trade agent;Import and export;Technology Import and Export;Sales of functional glass and new optical materials;Synthetic Materials Sales;Optoelectronic Device Sales;Optical Instrument Sales;Optical Instrument Manufacturing;Optical Glass Manufacturing;Electronic special material manufacturing;Manufacturing of electronic components;Fiber sales;Sales of high-purity elements and compounds;Non-ferrous metal rolling processing;Sales of electric accessories for new energy vehicles;Sales of new energy vehicle battery replacement facilities;battery manufacturing;Emerging energy technology research and development;Manufacturing of new energy original moving equipment;battery sales;Manufacturing of rubber products;Rubber Products Sales(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license).

Designs and builds a wide range of public and private networks, communications systems and software, and data networking systems, as well as telephone systems and microelectronic components

UOP LLC operates as a supplier and technology licensor for the petroleum refining, gas processing and petrochemical production. Its products include catalysts and adsorbents. The firm offers design, commissioning, ongoing operations, and optimization services. The company was founded on June 17, 1914 and is headquartered in Des Plaines, IL.

Zhongtian Technology Precision Material Co., Ltd. (doing business as Technology Precision Material Co. Ltd.), part of Jiangsu Zhongtian Technology Co., Ltd., is a company headquartered in Nantong, China. The firm produces and distributes optical fiber products and components. Jiangsu Zhongtian Technology Co., Ltd. acquired Zhongtian Technology Precision Material Co., Ltd. from Zhongtian Technology Group Co. Ltd. on June 11, 2010 for $10.93 million.