Reconfigurable Intelligent Surface (RIS) has been widely studied in both academia and industry in recent years. A series of RIS prototypes have been developed by colleges and companies in different regions, and various field trials have demonstrated notable improvements in both coverage and capacity performance. All these progresses reveal the high potential capability of RIS for future wireless network. With 6G standardization activities set to begin in 3GPP in 2025, this white paper seeks to bridge the gap between academic research and industrial deployment by proposing practical directions for RIS-related standardization. Through the collaborative input of various companies and research institutes, it provides insights into diverse RIS architectures, outlines high-level design principles, and proposes potential standardization work across system architecture, control information, reference signal, and beam management. It is hoped that this white paper can serve as a foundation to facilitate industry consensus and accelerate the integration of RIS into global 6G standardization activities.