Dr. Yutthanakon Khunaphan (Mark) is a materials scientist and Co-founder & CTO of RENEWSI, a solar recycling startup affiliated with the Battery and New Energy Science and Technology Factory (kkUVolts) at Khon Kaen University, Thailand. He also serves as a Sales and Marketing Supervisor for clean energy solutions at kkU Volts, bridging advanced battery technologies with real-world applications. He specializes in energy storage materials, transforming end-of-life solar cells into high-performance silicon anodes for lithium-ion batteries. He leads technology development and commercialization at RENEWSI. Dr. Khunaphan holds a Ph.D. from Khon Kaen University and has research experience at MIT.