BUENOS AIRES, March 18 (Reuters) - Argentina's San Juan mining province aims to become a major copper exporter by 2035, the country's production minister said, projecting the province's annual copper exports could reach between $15 billion and $20 billion by that year.

Production Minister Gustavo Gonzalez said the province aims to produce 1.2 million metric tons of copper annually by 2035.

(Reporting by Lucila Sigal; editing by Cassandra Garrison)

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