To enhance the efficiency of the Group’s businesses, the DDK Group has developed a business model that clearly specifies the business activities to be carried out by each individual company in the supply chain. This not only allows the group companies to avoid duplication of work, but also allows each company in the group to fully invest its resources in developing specialisation in the assigned area of business activity and improve operational efficiency. With this reason, companies in the Group are therefore required to have business dealings with each other.