Compensation trade refers to a type of trade in which importers purchase foreign technology and equipment and certain raw materials, and agree to repay the goods or labor in installments within a certain period of time.
According to the above definition, which the followings is not classified as compensation trade?
Power plant A in a certain country purchases 50,000 tons of coke from a coal company in another country, and the two parties agree to provide mining equipment to coal company B in one or two years to repay the full amount.