Exchange of goods between two parties under two distinct contracts expressed in monetary terms. Bloomberg Financial Dictionary
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counterpurchase UK US /ˈkaʊntəˌpɜːtʃəs/ noun [C or U]
► COMMERCE an arrangement in which two companies, countries, etc. agree to buy goods from, and sell goods to, each other using separate contracts: »
a counterpurchase agreement
Financial and business terms. 2012.