4STEC is a professional IT service company that focuses on the development and dissemination of IoT based barcodes, RFIDs, and IoT (USN) automatic recognition technology solutions. As a service company focused on people and technology, we are expanding our business in various fields such as solution development, web services, convergence, information consulting, server and product sales. - RFID middleware (software) field and application software development - Providing RFID integrated solution and consulting - Providing U-City solution through IT convergence and consulting