Dear, citizens who visit Korea for a short time for market research, business contact, negotiation, signing contracts, learning the installation, maintenance, overhaul, operation and other similar purposes need to apply for a short-term business (C-3-4) visa. This experience mainly introduces the materials that need to be prepared when applying for this visa, the time and expenses required, the details of the consulates and so on. Friends who need this can refer to this article, hoping to help you.