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Bloom Energy Corporation designs, manufactures, sells, and installs solid-oxide fuel cell systems for on-site power generation in the United States and internationally. The company offers Bloom Energy Server, a solid oxide technology that converts fuel, such as natural gas, biogas, hydrogen, or a blend of these fuels into electricity through an electrochemical process without combustion. It sells its products through direct and indirect sales channels to utilities, data centers, agriculture, retail, hospitals, higher education, biotech, and manufacturing industries. The company was formerly known as Ion America Corp. and changed its name to Bloom Energy Corporation in 2006. Bloom Energy Corporation was incorporated in 2001 and is headquartered in San Jose, California.

GrafTech International Ltd. research, develops, manufactures, and sells graphite and carbon-based solutions worldwide. The company offers graphite electrodes to produce electric arc furnace steel and other ferrous and non-ferrous metals; and petroleum needle coke, a crystalline form of carbon used in the production of graphite electrodes and synthetic graphite. It sells its products primarily through direct sales force, independent sales representatives, and distributors. GrafTech International Ltd. was founded in 1886 and is headquartered in Brooklyn Heights, Ohio.

Hollysys Automation Technologies Ltd. provides automation control system solutions in the People's Republic of China, Southeast Asia, India, and the Middle East. The company offers a suite of industrial automation systems, including hardware-centric products, such as instrumentation and actuators; proprietary software-centric distributed control systems/programmable logic controllers; and valued-added software packages comprising simulation training system, HolliAS asset management system, advanced process control, and manufacturing execution system, as well as HOLLiAS MACS-N DCS, a proprietary nuclear power non-safety automation and control system. It provides train control center, an on-ground control center that monitors route condition, track status, train schedules, distance between trains, and the working status of other function devices, as well as generates control instructions and commands. In addition, the company offers automation train protection that operates as a train over-speed protection mechanism; other signaling products, including automatic train operation system, track circuit, line-side electronic unit, balise transmission module, temporary speed restriction server, radio block center, and computer-based interlocking; and supervisory control and data acquisition system, an open software platform. Further, it offers integrated automation control system solutions, mechanical and electrical solutions, including design, engineering, procurement, project management, construction and commissioning, and maintenance related services, and installation services. The company was formerly known as HLS Systems International Ltd. and changed its name to Hollysys Automation Technologies Ltd. in July 2009. Hollysys Automation Technologies Ltd. was founded in 1993 and is headquartered in Beijing, the People's Republic China.

ITM Power Plc designs and manufactures proton exchange membrane (PEM) electrolysers in the United Kingdom, Germany, Australia, rest of Europe, and the United States. Its product portfolio includes TRIDENT, an PEM electrolysers stack technology; NEPTUNE, a 2MW plug and play electrolyser for small to mid-size projects; and POSEIDON, a cutting-edge 20 MW module for large-scale projects. ITM Power Plc was founded in 2001 and is headquartered in Sheffield, the United Kingdom.

Plug Power Inc. develops hydrogen and fuel cell product solutions in North America, Europe, Asia, and internationally. The company offers GenDrive, a hydrogen-fueled proton exchange membrane (PEM) fuel cell system that provides power to material handling electric vehicles; GenSure, a stationary fuel cell solution that offers modular PEM fuel cell power to support the backup and grid-support power requirements of the telecommunications, transportation, and utility sectors; ProGen, a fuel cell stack and engine technology used in mobility and stationary fuel cell systems, and as engines in electric delivery vans; GenFuel, a liquid hydrogen fueling delivery, generation, storage, and dispensing system; GenCare, an ongoing Internet of Things-based maintenance and on-site service program for GenDrive fuel cell systems, GenSure fuel cell systems, GenFuel hydrogen storage and dispensing products, and ProGen fuel cell engines; and GenKey, an integrated turn-key solution for transitioning to fuel cell power. It also provides electrolyzers, a hydrogen generator for clean hydrogen production; liquefaction systems that provides liquid hydrogen to customers; cryogenic equipment for the distribution of liquified hydrogen, oxygen, argon, nitrogen and other cryogenic gases, including trailers and mobile storage equipment; and liquid hydrogen, an alternative fuel to fossil-based energy. The company sells its products through a direct product sales force, original equipment manufacturers, and dealer networks. Plug Power Inc. was incorporated in 1997 and is headquartered in Latham, New York.