Exhibit 99.1 111, Inc. Announces Fourth Quarter and Fiscal Year 2023 Financial Results SHANGHAI, March 21, 2024 /PRNewswire/ – 111, Inc. ("111" or the "Company") (NASDAQ: YI), a leading tech-enabled healthcare platform company committed to digitally connecting patients with medicine and healthcare services in China, today announced its unaudited financial results for the fourth quarter and fiscal year ended December 31, 2023. Fourth Quarter 2023 Highlights · Net revenues were RMB4.1 billion (US$578.7 millio ...