EM-Tech

EM-Tech makes small mechanical and acoustic components, including speaker units, vibration motors, and module assemblies, that go inside smartphones, smartwatches, and wireless earbuds, and it is expanding into automotive electronics and haptic modules.

Device makers and consumer-electronics brands are its broad customer base. Listed on KOSDAQ, Korea's tech-focused small-cap board, the company earns the large majority of its revenue from its components division, while a smaller products division covers electronic cigarettes and auto-injectors. Research and marketing are handled domestically, with manufacturing concentrated at overseas facilities in Vietnam, Indonesia, and China.