The waste of electrical and electronic equipment (WEEE) involves various types of products that have reached the end of their lifespan and can cause environmental contamination and health issues for humans when WEEE is treated in informal sectors. Since 2008, Korea has operated the Extended Producer Responsibility (EPR) system and the Eco-Assurance system (Eco-AS), which collect and recycle WEEE under related laws. Although the EPR and Eco-AS systems successfully dealt with about 376,000 tons of WEEE in 2020, approximately 58% remained in the informal sector, posing potential risks to the environment and humans. Consequently, this paper was designed to deliver information currently related to the status of WEEE recycling in Korea, mainly regarding legislation, management systems, recycling achievement, and potential problems. This study discussed the seriousness of the informal sector, in which WEEE is illegally treated without proper guidelines, and sought ways to reduce the proportion of the informal sector.