Mr. Jon Bridgman reports

EXTER GOLD ANNOUNCES CLOSING OF 2ND TRANCHE PRIVATE PLACEMENT AND PROVIDES CORPORATE UPDATE

Exter Gold Corp. (formerly Bird River Resources Inc.) has completed the second tranche of its previously announced non-brokered private placement of 6,984,614 common shares in the capital of the company at 10.5 cents per share for aggregate gross proceeds of $733,384.47.

In connection with the offering, the company issued 24,000 finder compensation shares at 10.5 cents per share to an eligible finder.

Together with the first tranche of the offering, which closed on March 2, 2026, the company has issued an aggregate of 10,229,440 shares pursuant to the offering for aggregate gross proceeds of $1,074,091.20, excluding any shares issued as finders' fees.

The company intends to use the net proceeds from the offering for general corporate and working capital purposes. The shares were issued by way of a private placement pursuant to exemptions from prospectus requirements under applicable securities laws.

Corporate update

Further to the company's news release dated Dec. 11, 2025, regarding the entry into a binding letter of intent with Analog Gold Inc. to acquire certain assets from Analog, the company is pleased to provide the following corporate update. The preparation of a technical report for the Tres Oros mine located in Mexico pursuant to National Instrument 43-101 (Standards of Disclosure for Mineral Projects) and the required financial statements of Analog are progressing well, and the parties continue to advance the steps necessary to complete the transaction.

As previously disclosed in the company's news release dated March 2, 2026, the Tadeo mill, a processing facility situated approximately 47 kilometres south of Mazatlan, Mexico, which is operated by the company on lease and forms part of the assets to be acquired pursuant to the transaction, has stabilized its operations. The company confirms that the mill has commenced generating revenue for the company. The mill has processed over 40,000 tons of ore for third parties since October, 2025. Further, the development of the Tres Oros mine has advanced as per plan, and the mine has started production. The mill commenced processing the Tres Oros ore in April, 2026. The first revenue from Tres Oros mine concentrate is expected in June, 2026. Additionally, the permitting process for the El Dorado property has advanced significantly, including the agreements with the community.

The company also announces that, effective April 8, 2026, the parties entered into an addendum to the LOI pursuant to which the outside date for the completion of the transaction was extended to Oct. 31, 2026, among other things.

About Exter Gold Corp. (formerly Bird River Resources Inc.)

Exter Gold (formerly Bird River Resources), based in Winnipeg, Man., is a resource company focused on advancing quality mineral exploration and development properties. Upon completion of its transaction with Analog, the company will be a fully integrated producing gold and silver mining company located in a Tier 1 mining district east of Mazatlan, Mexico. Exter's key assets will include a fully operational processing mill with a capacity of processing 600 tons per day of ore, a producing mine, Tres Oros, a near-term producing high-grade gold property, El Dorado, and two key exploration properties, San Fernando and San Ramon, located next to Vizsla Silver's high-grade Panuco project with similar mineralization.

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