On September 18, 2024, Associate Professor Dr. Sewakchai Tangaramvong and Associate Professor Dr. Pitcha Jongvivatsakul were invited as guest speakers at a seminar to present research findings on the topic, “Research and Development Project on Using Recycled Materials from Residential Projects Mixed with Concrete for Building Construction.” This research project is a collaboration between the National Housing Authority and the Department of Civil Engineering, Faculty of Engineering, Chulalongkorn University. The seminar was held at the Golden Tulip Hotel, Rama 9, Bangkok.