1246773 B.C. Ltd. and 2311548 Alberta Ltd. Announce Closing of $4.1 Million Concurrent Private Placement in Connection with the Proposed Business Combination to Form Atacama Copper Corporation 773") and 2311548 Alberta Ltd. (" TargetCo") are pleased to announce that further to the companies' news releases dated March 12, 2021, and March 29, 2021, TargetCo has successfully closed the previously-announced non-brokered private placement (the " Private Placement") of 8,223,156 subscription receipts (the " Subscription Receipts") at a price of $0.50 per Subscription Receipt for gross proceeds of $4,111,578. Each Subscription Receipt will entitle the holder thereof to receive, subject to adjustment in certain circumstances, one common share of TargetCo (a " TargetCo Share") in accordance with the terms and conditions of the Subscription Receipts.