Dr. Nipon Taweejun (Associate Director), Ms. Natnaree Senaweenin (Executive Engineer), and Mr. Putthitorn Dechophop (Executive Engineer) traveled to participate in presenting research work in Yokohama, Japan, at the 28th International Federation of Heat Treatment and Surface Engineering Congress (IFHTSE2023) between November 13 and 16, 2023. At the event, there were 165 participants presenting their work from around the world. Ms. Natnaree was a representative from Thai Tohken Thermo Co., Ltd. to present the research work (co-research with ChiangMai University) on improving the heat treatment process to have a lower cost and be able to reduce the release of carbon dioxide into the atmosphere.