It is a great honor and pleasure to invite you to participate in the “11th East Asia Joint Symposium on Plasma and Electrostatic Technologies for Environmental Application (EAPETEA-11)” to be held on October 9-11, 2026 in Beijing, China. Following the first working group meeting in Jeju (November 22–24, 2012), the symposium has been successfully held annually, rotating among Korea, Japan, and China since 2017. EAPETEA has become an important platform for academic exchange and collaboration among East Asian researchers in the fields of plasma and electrostatic technologies. In this meeting, critical issues and ongoing advances in plasma science and its applications will be discussed, including but not limited to plasma diagnostics, commercial plasma technologies, and their applications in biomedical, environmental, and industrial fields. We sincerely welcome your participation in EAPETEA-11 and hope you will enjoy the rich academic atmosphere and cultural heritage of the vibrant city of Beijing. On-site registration and check-in will be arranged on 8 October 2026, one day before the technical sessions.