The main activity is the supply of goods and supplies (Procurement), including technology development, sited in the research and development (Technology Development including R & D) which may receive government services, Human resource management (Human Resource Management), which refers to the activity of labor employed in the rubber plantation. The screaming tires and rubber and raw rubber sheets to make rolls the Cup. In the value chain, it can get the difference of profit (Profit Margin), which means that enterprises can deliver products and services that customers want and are willing to pay more than the total cost of all the activities in the value chain system, sue. And as part of the activities to add value to the output of timber growers, farmers, timber directly.
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