What is supply chain integration? 1) Close alignment of companies within a supply chain. 2) Coordination of activities within a supply chain. 3) Integration of activities of multiple companies producing a final product. 4) All of the above. What is vertical integration? 1) Adding a second storage on the warehouse 2) Purchasing other companies that produce the same product that you produce. 3) Working closely with other companies within your supply chain. 4) Purchasing other companies within your supply chain