Perseus Mining Limited (OTCMKTS:PMNXF) is one of the best performing ASX stocks in 2025. On September 19, the company announced that it had received official authorization (a Presidential Decree) on September 18, 2025, to begin building and operating an underground mine at its Yaouré Gold Mine in Côte d’Ivoire, West Africa. Côte d’Ivoire’s President issued this decree after the company completed the required environmental and social impact assessments.Perseus Mining (PMNXF) Receives Approval for Underground Mine at Yaouré, Côte d’Ivoire

Perseus Mining stated that infrastructure projects for underground mining at Yaouré are already complete, allowing work to commence immediately. The next step is starting the main tunnel (called a “decline”) using equipment from Byrnecut, Perseus’s underground mining contractor. The company will invest $170 million in the project. And it expects the first ore to be produced in January 2026. Perseus anticipates commercial-scale mining to launch in March 2027.

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Yaouré is now the site of Côte d’Ivoire’s first modern underground gold mine. The project will allow Perseus to access richer, deeper parts of the ore body. Perseus aims for Yaouré to contribute roughly one-third of total company gold production over the next decade.

Perseus Mining Limited (OTCMKTS:PMNXF) is an Australian gold mining company. It acquires, explores, develops, and operates gold properties across West Africa, primarily through its Edikan Gold Mine in Ghana and the Sissingué and Yaouré gold mines in Côte d’Ivoire. Its main product is gold bullion, produced from both open-pit and underground mining operations.

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Disclosure: None. This article is originally published at Insider Monkey.

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