Sabodala-Massawa Gold Mine

Sabodala-Massawa is an open-pit gold mine in eastern Senegal operated by Endeavour Mining, which owns 90%; the Government of Senegal owns 10%. Endeavour acquired the mine through its 2021 takeover of Teranga Gold. A US$290 million expansion built a 1.2 million-tonne-a-year BIOX plant, which uses bacteria to treat refractory ore that conventional leaching cannot. It poured first gold in April 2024 and was designed to add about 194,000 ounces a year over its first five years. Endeavour reported 2024 production of about 229,000 ounces, well below its earlier guidance.

1. 01Bring the BIOX plant up to its 1.2 million-tonne-a-year nameplate capacity
2. 02Process refractory ore that conventional leaching cannot treat
3. 03Raise production toward Endeavour's targets for the expanded operation
4. 04Support Senegal's mining revenues through the state's 10% stake

1. 2009 · completed

   Sabodala Production

   Gold production began at the original Sabodala mine.

2. 2021 · completed

   Endeavour Takes Over

   Endeavour Mining acquired the operation through its takeover of Teranga Gold.

3. 2022 · completed

   Expansion Construction

   Construction began on the US$290 million BIOX expansion.

4. 2024 · completed

   First BIOX Gold

   The BIOX circuit poured its first gold on 28 April 2024.

5. 2024 · completed

   Lower Output

   Endeavour reported about 229,000 ounces for 2024, below its earlier guidance of 360,000-400,000 ounces.

• Open-pit mining
• Carbon-in-leach (CIL) processing for free-milling ore
• BIOX bacterial oxidation for refractory ore
• Gravity gold recovery

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• Endeavour Mining (90%)
• Government of Senegal (10%)