Zong outsourced several of its core systems like HR, data storage, CRM, billing and data protection to external providers like Chinese company Teamsun, Veris, Symantec and SAP. This allows Zong to focus on its main business while benefitting from the specialized expertise of these external companies in managing the different systems. Key systems outsourced include HR to Teamsun, data storage product Big Storage also to Teamsun, CRM to Veris, billing to Veris, and data protection to Symantec. Zong also contracted SAP for its ERP software needs.