Exhibit 99.1 Atour Lifestyle Holdings Limited Reports Second Quarter of 2024 Unaudited Financial Results · A total of 1,412 hotels, or 161,686 hotel rooms, in operation as of June 30, 2024. · Net revenues for the second quarter of 2024 increased by 64.5% year-over-year to RMB1,797 million (US$247 million), compared with RMB1,093 million for the same period of 2023. · Net income for the second quarter of 2024 increased by 27.1% year-over-year to RMB304 million (US$42 million), compared with RMB239 million fo ...