Tinka Provides an Update on Exploration Activities on Peru Projects and Corporate Update

The most recent news release from Tinka Resources Limited on December 15, 2025, provides multiple updates on its exploration activities and corporate matters: * Silvia Gold-Copper Project Drilling: Two diamond drill holes (S25-001 to 257m, S25-002 to 258m) have been completed at Silvia NW 'Area A' in Peru. A third hole is currently in progress, planned to a depth of 450m. The Company is now awaiting assay results from the laboratory, which are expected in early 2026. * Colquipucro Silver Deposit Reassessment: Tinka has initiated a reassessment of its Colquipucro silver deposit, citing significantly higher silver prices since the last drilling in 2015. The project has a 2016 resource estimate of 14.3 Moz Indicated and 13.2 Moz Inferred silver. Planned work includes geological reinterpretation and metallurgical review. * Corporate Appointment: Ms. Wilma Lee has been appointed as Corporate Secretary, effective December 1, 2025. * Stock Option Grant: Ms. Lee was granted 100,000 stock options with an exercise price of C$0.44 and a 5-year term. * Investor Relations Engagement: Tinka has engaged Oak Hill Financial Inc. to provide investor relations, business, and capital markets advisory services. The agreement is effective January 6, 2026, for an initial four-month term, with a monthly fee of C$12,000.

This news release provides a routine positive update on the company's activities. * Silvia Drilling Progress: The completion of two drill holes and a third in progress at Silvia is a positive confirmation that the drill program, which commenced on October 26, 2025 (previously rated Material - Positive), is proceeding as planned. However, the anticipated assay results, initially expected by the end of December 2025, are now deferred to early 2026. This is a minor delay but means the key catalyst remains pending. The market will be keenly awaiting these results, as Silvia is a primary focus for growth. The CEO's statement expresses excitement, but without actual results, it remains speculative. * Colquipucro Reassessment: The decision to re-evaluate the Colquipucro silver deposit is a net positive development. With silver prices having "more than trebled" since the last work in 2015, reactivating a previously defined silver resource (14.3 Moz Indicated, 13.2 Moz Inferred) adds another potential value driver to the company's portfolio beyond the Ayawilca zinc-silver-tin and Silvia gold-copper projects. This adds diversification to Tinka's asset base and provides a new potential catalyst, especially if the reinterpretation leads to an updated resource or preliminary economic assessment (PEA) that reflects current prices and geological understanding. Its impact is "routine positive" for now as it's an early-stage reassessment, not a new resource or economic study. * Corporate and IR Updates: The appointment of a Corporate Secretary and the engagement of an investor relations firm are standard corporate governance and market communication practices. While important for operational efficiency and investor engagement, these are non-material events from an investment perspective and are typical for a publicly traded company. The stock option grant is a compensation event and not material.

Overall, the news confirms operational execution at Silvia and prudently brings a historically defined silver asset back into focus given favorable market conditions. The delay in Silvia assay results is a slight negative but expected in exploration. The reassessment of Colquipucro is an added positive, expanding the company's potential value. Therefore, the overall impact is routine positive, confirming ongoing work and adding a new, albeit early-stage, initiative. It does not materially change the investment thesis or warrant a re-rating beyond routine progress.

Tinka Resources Limited (TSXV: TK, OTCQB: TKRFF) is a Canadian junior mining company focused on exploring and developing base and precious metal projects in Peru.

Flagship Project - Ayawilca (Zinc-Silver-Tin): * Located in the Central Peruvian polymetallic belt, a world-class mining district. * Hosts a large zinc-silver-tin resource. A Preliminary Economic Assessment (PEA) was completed in 2024, indicating strong economics. * Strategic investors Nexa Resources and Compania de Minas Buenaventura have significant stakes and operations within 50 km, potentially providing future off-take or development partnership opportunities. Nexa operates the largest zinc refinery in South America 250 km away. * A strategic review process was initiated in early 2025 to evaluate alternatives for maximizing shareholder value for Ayawilca, deferring further drilling for a period. * Subject to a 1% Net Smelter Royalty (NSR) retained by Sierra Peru Pty Ltd., which can be purchased for US$1,000,000.

Key Development Project - Silvia Gold-Copper Project: * A 100%-owned gold-copper project located 100 km south of the world-class Antamina copper mine in central Peru. * Acquired from BHP in 2021. * Initial surface exploration (systematic sampling, geophysics) has identified strong gold-copper potential, particularly at Silvia NW 'Area A', with high-grade trench samples (e.g., 46m at 1.9 g/t Au and 0.8% Cu, including 6m at 12.8 g/t Au and 2.7% Cu). * Received authorization to commence drilling in Q4 2025, with the first-ever drill program now underway. * Subject to a 1% NSR retained by BHP Peru, which can be repurchased for US$8,000,000 on or before July 8, 2036.

Other Projects: * Colquipucro Silver Deposit: A "forgotten asset" in the portfolio, with a 2016 resource estimate of 14.3 Moz Indicated and 13.2 Moz Inferred silver. Currently undergoing reassessment due to high silver prices. * Huwaymidan Gold Project (Saudi Arabia): A 5% carried interest in a newly established Saudi Arabian company (Midad Al Mona Mining Company), which was awarded the exploration license. Tinka provides exploration expertise and technical leadership, with exploration costs for the first two years (up to C$2.3M) fully financed by the Saudi partner. Initial drilling expected in late 2025.