NexGen Mining Incorporated (“OTCPK:NXGM”) (the “Company”), today announced that it has signed an extension to its non-binding letter of intent to acquire Electrum Copper Corp. (“Electrum”) for shares of the Company’s common stock. Electrum is an exploration and development company and the owner of the Candela and Don Indio Projects, both located in Mexico. Pursuant to the extension, the parties have agreed to use their best efforts to enter into definitive agreements on or prior to April 30, 2022.