Mr. Douglas Mason reports

MAGNUM GOLDCORP INC. ANNOUNCES SECOND AMENDMENT TO AMALGAMATION AGREEMENT WITH ATLANTICO ENERGY METALS, DELISTING FROM TSX VENTURE EXCHANGE, ANTICIPATED LISTING ON CANADIAN SECURITIES EXCHANGE AND POSTPONEMENT OF WARRANT AMENDMENTS

Magnum Goldcorp Inc. has entered into a second amending agreement dated March 26, 2026, to the amalgamation agreement dated Oct. 27, 2025, as amended Jan. 12, 2026, with Atlantico Energy Metals Corp. to acquire all of the outstanding shares of Atlantico, previously disclosed in the company's news releases dated Oct. 28, 2025, and Jan. 15, 2026.

Pursuant to the second amendment, the outside date for completion of the transaction has been extended to May 31, 2026 (from March 31, 2026), to provide the parties with additional time to complete the transaction. All other terms of the agreement remain in full force and effect.

TSX Venture Exchange delisting

Further, in connection with the transaction, the company announces the voluntary delisting of its common shares from the TSX Venture Exchange, effective March 31, 2026. Following the TSX-V delisting, the company intends to list the common shares on the Canadian Securities Exchange. The CSE listing is anticipated to be completed prior to the extended closing deadline, subject to fulfilment of all applicable CSE listing requirements and receipt of the requisite approvals from the CSE.

Postponement of warrant amendments

The company also announces the withdrawal of its applications to the TSX-V for approval of amendments to 1,907,500 outstanding common share purchase warrants of the company, as previously disclosed in the company's news release dated Jan. 15, 2026. The applications to the TSX-V relating to the warrant amendments have been withdrawn and the company will not proceed with the warrant amendments prior to the TSX-V delisting. However, the company intends to complete the warrant amendments following the TSX-V delisting and prior to the CSE listing.

For further details regarding the transaction and Atlantico, please refer to the company's news releases dated June 23, 2025, Oct. 28, 2025, and Jan. 15, 2026.

We seek Safe Harbor.