Effective at the opening, Monday, Nov. 2, 2026, the common shares of the company will commence trading on the TSX Venture Exchange. The company is classified as a gold and silver ore mining company.

The company's filing statement dated Oct. 26, 2026, has been filed with and accepted by the TSX Venture Exchange.

On Oct. 29, 2026, Monteoro Minerals Ltd. (formerly 1287405 B.C. Ltd.) (ShellCo), an unlisted reporting issuer, acquired the issued and outstanding securities of Monteoro Resources Ltd. (Monteoro), a private mining issuer, pursuant to a plan of arrangement that resulted in a reverse takeover of ShellCo by Monteoro. Pursuant to the arrangement, 122,241,040 resulting issuer shares were issued in exchange for common shares of Monteoro at a deemed price of 75 cents per share. ShellCo completed a share consolidation on a one-new-for-3.875-old basis in connection with the arrangement.

Concurrent with the arrangement, Monteoro completed a brokered private placement of 13,182,800 subscription receipts at 75 cents per receipt and a non-brokered private placement of 160,000 subscription receipts at 75 cents per receipt. Each subscription receipt was exchanged for one resulting issuer unit in connection with the arrangement. Each unit comprised one common share and a 0.5 share purchase warrant. Each whole warrant entitles the holder to acquire one common share at an exercise price of $1 per share for 36 months after listing.

Postarrangement, the resulting issuer is Monteoro Minerals Ltd.

Eighty million two hundred ninety-four thousand four hundred twenty-one shares and 3.6 million options issued to principals pursuant to the arrangement are subject to a Tier 2 escrow agreement to be released over a 36-month period. In accordance with the exchange's seed share resale restrictions, 3.5 million common shares issued to non-principals are legended and will be released over a 12-month period.

The qualifying property is located in Colombia.

For further information, please refer to the company's filing statement dated Oct. 26, 2026, and the company's closing news release dated Oct. 29, 2026.

Corporate jurisdiction:  British Columbia

Capitalization:  unlimited common shares with no par value, of which 136,583,840 common shares are issued and outstanding

Escrowed shares:  80,294,421 common shares

Transfer agent:  Endeavor Trust Corp.

Trading symbol:  MTAU (new)

Cusip No.:  61238E 10 5 (new)