石基信息：云PMS通过与酒店管理集团签署MSA确定公司产品进入该集团采购清单

Group 1 - The core product of the company in hotel management is the cloud PMS, which is determined by hotel management groups [1] - The company enters the procurement list of hotel management groups through signing a Master Service Agreement (MSA) [1] - The MSA includes a service agreement template that hotel owners must sign, as they need to procure information systems according to the standards set by the hotel management group [1]