GST

GST makes two types of equipment used in semiconductor and display manufacturing: scrubbers, which clean harmful gases emitted during production, and chillers, which regulate temperature to keep manufacturing processes running efficiently.

Its customers are chipmakers and display panel producers that need this environmental and process-control equipment on their factory floors. Listed on KOSDAQ, Korea's tech-focused small-cap exchange, GST earns the large majority of its revenue from product sales, primarily scrubbers and chillers, with the remainder coming from maintenance services and traded goods.