纸去哪了 is a professional app that combines various functions such as trading in the paper packaging industry, a marketplace for industry-related products, logistics and transportation, and financial services. It is specifically designed to cater to the needs of packaging stations, paper mills, trading companies, and logistics drivers in the paper recycling industry. The app brings together resources from the entire industry chain, including packaging stations, traders, logistics drivers, and paper mills, effectively covering the national market. It provides a wealth of information on paper trading supply and demand, as well as logistics information, to meet the needs of customers in the paper trading industry. Additionally, the app leverages its platform resources to provide working capital to customers in the paper trading industry, thereby alleviating short-term financial pressures and supporting the industry's move towards standardization and regulation.