This scenario best illustrate Backward vertical integration
Explanation:
Backward integration is a vertical integration that extends the role of a organization to perform roles traditionally performed by firms in the supply chain.
In other terms, backward integration is where an enterprise imports another company providing the necessary goods or services for production.
For examples, an company might purchase the product or raw materials manufacturer. Businesses often complete retrograde incorporation of these other businesses or combine of them. However, they may set up their own divisions to perform this mission.
