A registered office address is the official address of a company registered with the Accounting and Corporate Regulatory Authority (ACRA) in Singapore, it is a legal requirement in Singapore and must be a physical address where official government correspondence and legal documents can be delivered.   The business address is used for operational purposes and does not need to be the same as the registered office address. The company may choose to have a separate registered office and business address for various reasons, such as maintaining the confidentiality or separating official and operational activities.