An approaching immigration deadline can be stressful, especially when HiKorea shows no available appointments. Knowing when to apply, which office handles your address, and what documents to prepare can make the process easier. This guide covers extensions of stay for E-2, F-6, D-10, and F-2-7 holders. It explains when you can apply, how to arrange an appointment, and the baseline documents commonly required. Throughout this guide, "ARC renewal" refers to extending your permitted period of stay in Korea. Replacing a lost or damaged Residence Card is a separate application with its own fee. Requirements vary by visa type and individual circumstances. Before submitting, confirm the latest requirements through the HiKorea portal or the Immigration Contact Center at 1345. When You Can Apply Immigration guidance states that you can apply for an extension up to four months before your current period of stay expires. Submitting earlier gives you time to collect missing items witho...