2025 3rd International Forum on Clean Energy Engineering was held successfully in Jeju Island, South Korea during April 25-27, 2025. It has provided the participants with a wondeful platform for exchanging their newest research findings in the field of clean energy. We also like to extend our sincere appreciation to the audience from all over the world who have contributed their research papers to the conference. Additionally part attendee also have their sightseeing in Jeju at the last day of the conference.