LA MANCHA INVESTMENTS S. A R. L. TO FILE EARLY WARNING REPORT

La Mancha Investments S.à r.l., a wholly owned subsidiary of La Mancha Resource Fund SCSp, filed an early warning report advising that on August 15, 2026, it entered into a subscription agreement with Miata Metals Corp. to acquire 33,468,442 common shares at C$0.41 per share for aggregate consideration of C$13,722,061.22 through a non-brokered private placement. Closing is expected on or about August 18, 2026.

La Mancha previously held no shares. Upon the agreement, it is deemed to beneficially own approximately 19.9% of issued and outstanding shares, calculated including shares to be issued under Miata’s concurrent bought-deal financing. La Mancha states the acquisition is for investment and portfolio management purposes and may increase or decrease its investment in the future.

This filing is a regulatory confirmation of the strategic investment that Miata first announced on July 28, 2026, and upsized on July 29, 2026. The final short form prospectus for the concurrent bought deal was filed August 11, 2026. The La Mancha share count and aggregate consideration in this filing are slightly higher than the July 29 figures (32,390,229 shares / C$13.28M), reflecting the anti-dilution mechanism described in the final prospectus.

Miata Metals Corp. (MMET) issued an early warning report confirming the final subscription amount and expected closing date for its strategic investment with La Mancha. The core terms of the transaction, including the pricing at C$0.41, the 19.9% pro forma stake, and the associated lock-up, standstill, and board nomination rights, were originally disclosed on July 28 and July 29, 2026. The filing serves as an administrative confirmation rather than introducing new terms, investors, or financing structures.

The transaction involves a strategic mining investor with technical and capital-markets expertise taking a near-20% stake. Following the initial announcement, Miata’s stock rose from approximately C$0.45 on July 28 to C$0.60 by August 7–10, before consolidating in the C$0.56–0.57 range. The slight increase in La Mancha’s subscription from the July 29 figure aligns with disclosed anti-dilution adjustments.

The share issuance is dilutive, as the financing price of C$0.41 is below the current market price of C$0.57. The pro forma share count increases from approximately 106 million to roughly 164 million. La Mancha’s 33.5 million shares will become a potential overhang after the 18-month lock-up expires.

Miata Metals Corp. (TSXV: MMET) is a Canadian-listed, exploration-stage gold company focused on the Guyana Shield in Suriname. The company trades on the TSX Venture Exchange, having moved from the CSE on April 23, 2026, and also trades on the OTCQB and Frankfurt Stock Exchange.

Miata’s flagship asset is the Sela Creek Gold Project, which covers approximately 200–215 km² near the Central Guyana Shear Zone and Tapanahony River. The company holds a 70% beneficial interest with an option to acquire 100%. The property is subject to a 2% net smelter return (NSR), with buyback options of 0.5% for US$500,000 and another 0.5% for US$2,500,000.

No mineral resources or reserves have been reported, and no economic studies, production guidance, net present value (NPV), internal rate of return (IRR), or all-in sustaining costs (AISC) exist. The company is currently at the discovery drilling stage.

Key zones at Sela Creek include Jons Trend, Big Berg, Puma East, Puma West, Golden Hand, Stranger, Cambior, and Howler. Notable intercepts include:

• 35.6 m at 3.04 g/t Au at Jons Trend
• 96 m at 1.41 g/t Au at Big Berg
• 17.19 m at 3.14 g/t Au at Puma East
• 5.3 m at 8.25 g/t Au at Puma West

The company also holds the Nassau project, located about 125 km southeast of Paramaribo and about 20 km south of Newmont’s Merian mine. Miata holds a 70% interest with an option to 100%. Nassau concessions were pending renewal as of the latest MD&A.

Management includes Dr. Jacob Verbaas as CEO, John Wenger as CFO, and Dr. Luke Bickerton as VP Exploration. The board includes James Reid, Danny Matthews, Danae Voormeij, and Derk Hartman. Insider and founder ownership is approximately 17% per the investor presentation.