OIO Holdings Ltd is a holding company a Singapore-based blockchain service provider. Its businesses are in the provision of blockchain agency consulting services, and staking services. Its Mechanical and electrical services segment relates to the provision of solutions and services in fire protection systems, plumbing and sanitary systems, and heating, ventilation, and air-conditioning systems; the Management services segment relates to the provision of contract work management and fulfillment services; and Blockchain technology services relate to sales agency services to blockchain companies with their blockchain-related products and other services, It also provides Staking services relate to the provision of digital wallets and staking services to retail customers, and others.