IPG Photonics develops and manufactures fiber lasers and amplifiers for diverse applications in numerous markets. Its diverse lines of low, medium and high-power lasers and amplifiers are used in materials processing, communications, entertainment, medical, biotechnology, scientific, and advanced applications. Its products are displacing traditional technologies in many current applications and enabling new applications for lasers. The company was founded in 1990 and is headquartered in Oxford, Massachusetts.

Castech Inc. is principally engaged in the research, development, manufacture and sale of photoelectronic crystal materials. The Company's major products include nonlinear optics (NLO) crystals, such as lithium borate (LBO), beta-barium borate (BBO) and potassium titanyl phosphate (KTP); laser crystal components, such as neodymium doped yttrium orthovanadate (Nd:YVO4), as well as laser optoelectronic components. The Company's products are used in laser and optical communication industries. The Company also involves in the provision of technical consulting and technical support services.

Proterial Ltd. engages in the manufacture and sale of products for automobile, electronics, and infrastructure industry sectors. It operates through the following divisions: Specialty Steel, Magnetic Materials, Functional Components, and Cable Materials. The Specialty Steel division includes high-grade special steel, rolls, steel and ceramic structural parts, injection molding machine parts, and soft magnetic materials. The Magnetic Materials division comprises of magnets and ceramic products. The Functional Components division consists of high-grade casting components for automobiles, piping and infrastructure components, and construction components. The Cable Materials division offers electric wires and functional items such as industrial wire, equipment wire, industrial rubber, cable processed products, automotive electrical components, and brake hose. The company was founded on April 10, 1956 and is headquartered in Tokyo, Japan.

LG Energy Solution Ltd. engages in the manufacturing of storage batteries. It develops advanced automotive batteries, mobility & IT battery, and energy storage systems battery enterprises. The company was founded on December 1, 2020 and is headquartered in Seoul, South Korea.

Part of Thermo Fisher Scientific, Inc., Spectra-Physics Lasers, Inc. is a company headquartered in the United States that manufactures lasers, scientific products and RandD.

Meishan Boya New Materials Co., Ltd., established on 2016-12-22, Business scope includes fiberglass,carbon fiber,Quartz fiber and high-tech composite materials,laser material,scintillation material,optical material,Research and development of optical instrument products and new inorganic non-metallic materials,Production,manufacture,processing,Sales and technical consulting services;The export business of the products and technologies of the enterprise and the machinery and equipment required by the enterprise,spare parts,Import business of raw and auxiliary materials and technologies;Retail non-ferrous metals;Rare earth oxides for sale.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Gamdan Optics is a commercial products company that offers full-service optics fabrication. The company was founded in 2006 by Dr. Sitai Lin and is based in San Jose, California.

Wuhan Anyang Laser Technology Co., Ltd., established on 2010-12-23, Business scope includes fiber laser,special laser,Development of Fiber Optic Sensors,Production,Sales,Install,repair;Fiber Optic Products,communication products(Radio Products Not Included),Research and development of electronic products,Production,Sales,Install,Maintenance service;Import and export,Technology Import and Export(Goods and technologies prohibited by the state from import and export are not included).(In the above-mentioned scope of business, the projects with special regulations stipulated by the state shall be operated within the approved period after being approved by the state or with a license)

M Squared Lasers develops and manufactures next-generation lasers and photonic instruments that bring new capabilities, higher reliability and greater ease of use to a diverse range of industrial and scientific applications. With a core team that has more than twenty years of experience, and a track record of supplying award-winning products to worldwide markets, M Squared is ideally placed to help solve problems, de-risk your projects and accelerate your applications.

KLA Corp. engages in the supply of process control and yield management solutions for the semiconductor and related nano-electronics industries. The company operates through the following segments: Semiconductor Process Control, Specialty Semiconductor Process, and PCB, Display and Component Inspection. The Semiconductor Process Control segment provides a comprehensive portfolio of inspection, metrology and data analytics products and related services. The Specialty Semiconductor Process segment develops and sells advanced vacuum deposition and etching process tools. The PCB, Display and Component Inspection segment enables electronic device manufacturers to inspect, test and measure PCBs, flat panel displays and ICs to verify their quality. Its products include manufactured chips, reticle, packaging, surface profilers, nanochemical testers, KT pro equipment, and compound semiconductors. The company was founded in April 1997 and is headquartered in Milpitas, CA.

Lumentum Operations LLC manufactures optical and photonic products. Its commercial lasers enable advanced manufacturing techniques and diverse applications including next-generation 3D sensing capabilities. The company is headquartered in Milpitas, CA.

Nanjing Zhongke Shenguang Technology Co., Ltd., established on 2013-01-24, The business scope includes optoelectronic products,car parts,UAV product development,Production,Sales;Biochemical Kit,Medical equipment research and development and service;Mechanical Equipment Design,Production,processing,Sales;Transformation of high-tech achievements;Industrial Investment;Laser Technology Consulting Services;houses,Equipment Leasing,repair;property management;Self-operated and agent import and export business of various commodities and technologies(The state restricts the company to operate or prohibits the import and export of commodities and technologies except).(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments) General project:Technical Services,technology development,technical consulting,Technology Exchange,technology transfer,Technology Promotion;Natural science research and experimental development;Engineering and Technology Research and Experimental Development;Additive Manufacturing Equipment Manufacturing;Additive Manufacturing Equipment Sales;additive manufacturing;Technical extension services;3Dprint service;New material technology promotion service;Technology promotion and application services;software development;Artificial intelligence basic software development;Artificial intelligence application software development;Metal cutting and welding equipment manufacturing;Metal cutting and welding equipment sales;New material technology research and development;Fabrication of Metal Structures;mold making(Except for projects subject to approval by law,Carry out business activities independently in accordance with the law with a business license)

Yangzhou Cuifutang Jewelry Co., Ltd., established on 2013-04-15, Business scope includes jewelry,Jade processing,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Nanjing Changqing Laser Technology Co., Ltd., established on 2010-05-14, Business scope includes research and development,ProductionPPLNOptical chip and optical engine for large-screen color projection display,light source,Key components such as high-definition projection tubes and micro-display projection equipment modules;Sell ​​self-produced products and provide related services.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

OXIDE Corp. engages in the development, manufacture and sale of electronic components. Its products include oxide single crystals, optical components, laser light sources, wavelength convertors, DUV (Deep Ultraviolet) lasers, measurement systems and others. The company was founded by Yasunori Furukawa on October 18, 2000 and is headquartered in Hokuto, Japan.

Shenzhen Kejian Construction Group Co., Ltd., established on 2012-02-17, Business scope includes general business items:Invest in business(Specific projects will be reported separately);Construction,decorate,furnish(It can operate only after obtaining the qualification certificate issued by the construction administrative department);bear the territory,Various types of buildings(including car,ferry,airplane)Design and construction of interior and exterior decoration works;Architectural Decoration Design Consulting,Technical Services;Electrical Installation;Piping and Equipment Installation;Concrete Precast Structure Engineering,Environmental Engineering,Metal doors and windows,Earthwork,Waterproof and anticorrosion engineering,Elevator installation project,Prestressed Engineering,Blasting and demolition works,NDT Engineering,Sports facilities engineering,construction work,Municipal Engineering,Power Engineering,Foundation and Foundation Engineering,Water Resources and Hydropower Engineering,Steel structure engineering,bridge engineering,tunnel Engineering,Electronics and Intelligent Engineering,Ancient Architecture,Fire Engineering,Building Intelligent Engineering,Security Engineering,Building Curtain Wall Engineering,Urban landscaping project,Mechanical and electrical equipment installation engineering,Mechanical and Electrical Engineering,Scaffolding works,Design and Construction of Urban Road Lighting Project;Municipal facilities,road facilities,Sports facilities,Transportation Facilities,water conservancy facilities,street light,greening,Construction of river management and repair projects;Cleaning service;Furniture and millwork design and home installation;Building decorative stone sales and door-to-door installation;Architectural Decoration Soft Decoration Design,On-site installation and sales;Technology research and development and sales of new environmentally friendly materials;Geological hazard assessment survey design construction;Construction labor subcontracting;Engaged in the import and export of goods and technology.(The above items do not include legal,Administrative regulations,Projects subject to approval by the State Council,Those involving qualification permits from relevant competent authorities need to obtain qualification permits before operating),The licensing program is:Production of furniture and wood products;Building decorative stone processing;Architectural decoration soft decoration production;Production of new environmentally friendly materials;Production of Class II Medical Devices;Class III medical device business;Sales of Class II Medical Devices.(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)

Guangdong Guoteng Quantum Technology Co., Ltd., established on 2017-08-29, Business scope includes quantum communication network construction;Development of commercial encryption products;Development of Quantum Devices and Devices;information system technology,quantum communication technology,converged communication technology,Technology development for universal quantum technologies,Technical Services,Technical consultation and transfer of basic achievements;Computer System Integration Services;Communication Engineering Design,construction;Acting as an agent for telecom value-added services;Network Security System Integration;communication device(Satellite ground reception facility,Except for radio transmitting equipment),electronic product(Except for electronic publications),Computer hardware and software,production of computer equipment,Sales.(Items subject to approval by law,Business activities can only be carried out after approval by relevant departments)

Lightwave Electronics Corp., a subsidiary of Lumentum Holdings, Inc., is a company headquartered in Mountain View, CA, that provides solid-state lasers for commercial markets. Viavi Solutions, Inc. acquired Lightwave Electronics Corp. on April 29, 2005 for $65 million.