Core Viewpoint - The second-hand e-commerce platform Zhuanzhuan is shifting from a C2C model to a C2B2C model, focusing on "official verification" of second-hand goods to enhance trust and standardization in transactions [3]. Group 1: Business Model Transition - Zhuanzhuan announced the closure of its C2C "free market" business, with the personal goods publishing entry closing on September 24 and the trading service shutting down on September 29 [3]. - The CEO of Zhuanzhuan, Huang Wei, stated that the decision to close the "free market" was difficult but necessary due to issues like online fraud and disputes that arose from the C2C model [3]. - Since 2019, Zhuanzhuan has been gradually shifting its focus to the C2B2C model, with the "free market" business now accounting for less than 3% of the platform's overall GMV [3]. Group 2: Market Context and Challenges - The second-hand e-commerce market is projected to reach a transaction scale of 645.02 billion yuan in 2024, reflecting a year-on-year growth of 17.56% [6]. - The C2C model faces challenges such as insufficient trust, limited supply, and low conversion efficiency, leading to a small profit margin [4]. - Zhuanzhuan's C2B2C model aims to improve trust and supply by implementing quality inspection teams and providing after-sales guarantees, which are seen as essential for enhancing user experience [4][7]. Group 3: Competitive Landscape - Zhuanzhuan and Xianyu are both classified as comprehensive second-hand trading platforms, but they differ significantly in their attributes; Zhuanzhuan focuses on transactions while Xianyu emphasizes community engagement [6]. - Both platforms generate revenue through commissions, advertising, and value-added services, but they face common issues in the C2C market, including trust deficits and inefficient dispute resolution [7].