Orosur Mining Inc. Reports Total Voting Rights

## Orosur Mining Updates Share Capital Following Option Exercises

**LONDON, UK – December 31, 2025** – Orosur Mining Inc. (AIM: OMI, TSXV: OMI) has announced an update to its total voting rights and issued share capital. This follows the admission of 666,664 common shares on December 16, 2025, stemming from the exercise of options by company consultants.

As of the latest reporting, Orosur Mining now has a total of 392,689,176 common shares in issue. The company clarified that no warrants were exercised during December, and consequently, no additional common shares were issued from its existing block listing during the same period.

For shareholders adhering to the Financial Conduct Authority’s Disclosure Guidance and Transparency Rules, the figure of 392,689,176 common shares will serve as the denominator for calculations related to reporting obligations. This update ensures transparency regarding the company’s equity structure and is a standard procedure for publicly traded entities undergoing share issuances.

**Strategic Implications and Market Context**

The issuance of shares through option exercises, particularly by consultants, can be viewed in several ways within the mining sector. On one hand, it can signal confidence from individuals closely involved with the company’s operations and development. For Orosur Mining, which is actively exploring and developing projects in Colombia and Argentina, this demonstrates a commitment to its ongoing endeavors.

From a capital structure perspective, this increase in the number of outstanding shares will dilute existing shareholders’ stakes on a percentage basis. However, the relatively small number of shares issued (approximately 0.17% of the total shares outstanding) suggests a minimal dilutive impact. The key consideration for investors is how these options were priced and whether the underlying performance and future potential of Orosur’s projects justify this expansion of its equity base.

Orosur’s focus on exploration and development in South America places it within a dynamic and often volatile segment of the mining industry. Successful exploration outcomes can lead to significant value creation, while developmental challenges can impact timelines and costs. The company’s ability to manage its capital effectively, including the issuance of shares for strategic purposes, is crucial for its long-term success.

The update also highlights the importance of diligent record-keeping and timely disclosure for listed companies. Adherence to regulatory requirements, such as those mandated by the FCA, is paramount for maintaining investor confidence and ensuring the integrity of the market. Shareholders are thus provided with the necessary information to track their holdings and fulfill their disclosure obligations accurately.

**Looking Ahead**

As Orosur Mining continues to advance its projects, investors will be closely watching its progress, particularly in terms of exploration results, resource definition, and potential future production. The company’s strategic use of its share capital, including options and other equity-based compensation, will remain a key area of focus as it navigates the complex landscape of mineral exploration and development.

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**About Orosur Mining Inc.**

Orosur Mining Inc. is a minerals explorer and developer with a portfolio of projects located in Colombia and Argentina. The company is committed to advancing its exploration assets and exploring opportunities for growth within the mining sector.

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**For further information, please visit:** www.orosur.ca

**Contact:**

Orosur Mining Inc.
[email protected]
+1 (778) 373-0100

**Nomad & Joint Broker:**
SP Angel Corporate Finance LLP
+44 (0) 20 3470 0470

**Joint Broker:**
Turner Pope Investments (TPI) Ltd
+44 (0)20 3657 0050

**Investor Communications:**
Flagstaff Communications and Investor Communications
[email protected]
+44 (0)207 129 1474