Johnson Matthey 

Johnson Matthey Plc, established in 1817 and headquartered in London, UK, is a global leader specializing in clean air technologies, advanced catalysts, hydrogen solutions, and comprehensive services related to platinum group metals (PGMs). Operating across the United Kingdom, continental Europe, North America, China, Hong Kong, other Asian regions, and internationally, the company organizes its diverse activities into three primary segments. The Clean Air segment is dedicated to developing and supplying emission control catalysts for a broad spectrum of vehicles, including cars, light-duty vehicles, trucks, buses, and non-road machinery, effectively reducing harmful exhaust gases from both diesel and gasoline engines. Its Efficient Natural Resources segment delivers crucial products and processing services for the utilization and transformation of essential natural resources like oil, gas, biomass, and platinum group metals, alongside pioneering circular economy initiatives. This segment's offerings encompass specialty catalysts, additives, technology licensing for various processes, PGM refining and recycling, a range of chemical and industrial products, and other precious metal services. The Other Markets segment holds a varied portfolio, including precious metal pastes and enamels, advanced battery systems, fuel cell technologies, battery materials, and green hydrogen solutions. Furthermore, it leverages its scientific and technological prowess to create products for medical devices and provides sophisticated detection, diagnostic, and measurement solutions. The company adopted its current name, Johnson Matthey Plc, in 1851, having originally been known as Johnson & Cock.