未及时履行信息披露义务，麦趣尔收到监管函

Group 1 - The core issue is that Maqu Group failed to timely disclose information regarding a bankruptcy petition filed against it, which is a violation of regulatory requirements [1] - The Shenzhen Stock Exchange issued a regulatory letter to Maqu Group, emphasizing the importance of adhering to laws and regulations related to information disclosure [1] - Maqu Group became aware of the bankruptcy petition by January 4, 2026, but did not disclose this information until January 28, 2026, indicating a significant delay in compliance [1]