Johnson Matthey (JM) is a specialty chemicals company that manufactures catalysts. It operates in five segments: Clean Air, PGM Services, Catalyst Technologies, Hydrogen Technologies, and Value Businesses. The Clean Air segment specializes in light and heavy-duty catalysts for cars, trucks, buses, and non-road equipment. The PGM Services engages in platinum group metal refining and recycling, trading solutions, etc. The Catalyst Technologies segment focuses on specialty catalysts and additives, process technology licenses, and engineering design services. The Hydrogen Technologies segment offers fuel cell and electrolyzer catalyst-coated membranes. The Value Businesses segment provides precious metal pastes and enamels, battery systems, and other products as well as detection, diagnostic, and measurement solutions. The company caters to automotive, chemicals, oil and gas, and other industries.