11:30 to 14:00, 18:30 to 22:00. Henan Great Oyster and River Mountain Catering Management Co, Ltd, established in 2021, is located in Kaifeng City, Henan Province. The business operates from 11.30pm to 14.00pm and 18.30pm to 22.00pm. The company's business scope includes catering management, takeaway delivery services, and unit logistics management services.