Sth Holdings

STH Holdings Co, Ltd. was established as an investment holding company investing in professional audio and relevant industries in Thailand and worldwide. We provide management services to all subsidiaries through a back-office shared service team. In addition, we intend to hold a controlling interest in other companies and form a corporate group specializing in the industry. We strive to ensure that our business partners select us for the high level of reliability of our services and the top quality of our products. Our business lies in professional audio systems and components manufacturing, live show production rental for international concerts and events, and customized financial and business solutions for corporates in SEA. Our subsidiaries: 1/ STH A-Ton (Thailand) A reputable voice coil manufacturer originated in Taiwan in 1973. We utilize modern technology and an experienced factory team to produce high-quality voice coils, a crucial component used in speakers. 2/ STH Professional Audio Owns the trademark of two professional audio brands, namely P.Audio, a loudspeaker manufacturer brand founded in Thailand in 1991; and One Systems, a weatherproof loudspeaker brand suitable for both indoor and outdoor application. https://sth-pro.com/ 3/ One Systems Tech A procurement company based in Taiwan that leverages from being a local company to negotiate and find the best suppliers and raw materials at the highest quality for our brands. 4/ OSI One Systems Inc. Designs and builds premium professional loudspeakers for indoor and outdoor applications. Our speakers are best known for their durability in direct weather and harsh environments. 5/ One System Global Production An audio and lighting equipment rental company based in Bangkok. We own the L-Acoustic Systems and over pcs of computer lights in Thailand that can serve concerts and events at any scale. https://osproduction.co.th/