Westport Fuel Systems Inc is an organization engaged in the engineering, manufacturing, and supply of alternative fuel systems and components for transportation applications. It has three operating segments; the Original Equipment Manufacturers segment-design, manufacture, and sell alternative fuel systems, components and electronics, and related engineering services, to OEMs that serve light-duty, medium-duty, and heavy-duty customers, the Independent Aftermarket segment includes IAM products, conversion kits, and components allow for the conversion of vehicles after being sold to the end-user through a network of dealers and installers, and Corporate includes public company activities, corporate oversight, financing and capital allocation.