Since Guangzhou officially implemented the total volume control of small and medium-sized passenger cars in July 2012, Guangzhou Enterprises Mergers and Acquisitions Services, a subsidiary of Guangzhou Exchange Group, has been entrusted to regularly organize bidding activities for incremental quotas of small and medium-sized passenger cars. It pioneered the domestic online bidding model of "one-time quotation and two-time revision", creating an innovative public resource bidding model with Guangzhou characteristics. Up to now, it has organized more than 124 phases of incremental quota bidding activities and successfully allocated over 570,000 incremental quotas. Over the past decade, Guangzhou Enterprises Mergers and Acquisitions Services has taken multiple measures to optimize service efficiency. Leveraging its market-oriented and professional advantages, it provides high-quality and efficient services for the orderly circulation of public resources, promotes the appreciation of public resources, and realizes the optimal allocation of public resources.