Wellchange Holdings Company Limited, through its subsidiaries, operates as an enterprise software solution services provider primarily in Hong Kong. The company provides tailor-made software solutions, cloud-based software-as-a-service (SaaS) solutions, and white-labelled software design and development services. The company also operates MR. CLOUD, a cloud-based SaaS enterprise resource planning software platform based on subscription services to support back-office and front-office functions, such as finance and accounting, procurement, manufacturing, inventory management, order management, warehouse management, supply chain management, customer relationship management, professional services automation, project and file management, human resources management, e-commerce, and marketing automation. In addition, the company offers mobile application, web development, and desktop software development services. It serves small and medium-sized businesses and corporate customers. The company was founded in 2011 and is based in Cheung Sha Wan, Hong Kong. Wellchange Holdings Company Limited operates as a subsidiary of Power Smart International Limited.