Supply Chain is a system of organizations, people, tehnology, activities, informations and resources involved in movement of a product or service from supplier to customer. Supply Chain means coordonation between production, inventory, location and transport, so as to obtain the best combination between timeliess and efficiency for market underserved.
Supply Chain transforms natural resources, the raw materials and components into a finished product that is delivered to the final customer. In Supply Chain the used products can be reenter at any time in the supply chain if the residual value is recyclable