Forth Corporation Public Company Limited is a Thailand-based company engaged in the manufacture and distribution of telecommunication equipment, electronic equipment and electronic parts. Its products include private automatic branch exchange (PABX) products, battery chargers, controller inverters and chargers, digital loop carriers (DLCs), call center systems, nurse call systems and traffic systems, as well as other related products, such as light emitting diode (LED) traffic lights, traffic countdown displays and traffic signal controllers. It distributes products under the trademark of FORTH. The Company operates a factory in Nakornpathom province. Its customers are electronic appliance and telecommunication equipment companies. The Company's subsidiaries include Forth Lighting Company Limited, Forth Consulting Company Limited, Electronics Source Company Limited and Genius Traffic System Company Limited.