Caledonia mining greenlights $132m surge for Zimbabwe’s largest gold mine

By: Chidozie Nwali

Caledonia Mining Corporation has officially launched its 2026 expansion strategy on Wednesday, headlined by a $132 million investment to begin construction on the Bilboes Gold Project.

Once fully operational, Bilboes is projected to become the largest gold mine in Zimbabwe, effectively tripling Caledonia’s current production capacity and cementing the country’s status as a top-tier gold producer.

The $132 million allocation is the centerpiece of a broader $162.5 million capital expenditure program for 2026. This aggressive spending comes at a time when gold prices are hovering near historic highs, providing the financial tailwinds necessary for high-stakes development.

Gold prices hit another peak high of over $4,630 an ounce early on Wednesday, fuelled by escalating tensions in Iran, concern over the Federal Reserve’s autonomy and softer inflation readings that boosted rate cut bets.

“Our 2026 budget reflects our commitment to sustained investment in both our core operations and future growth,” stated Mark Learmonth, CEO of Caledonia Mining. “The planned capital expenditure will advance the development of the Bilboes project where we see long-term, value-enhancing synergies,” Learmonth noted.

The Bilboes project, located approximately 75km north of Bulawayo, is not just another mine; it is a high-tech industrial undertaking designed to tackle “refractory” ore—gold that is chemically locked within sulfide minerals.

The project will utilize BIOX technology, which uses naturally occurring bacteria to “eat” the sulfide minerals, releasing the gold for traditional extraction. This method is essential for the Bilboes site, which holds proven and probable reserves of 1.75 million ounces.

The decision to move forward was bolstered by a critical policy reversal in late 2025. The Zimbabwean government scrapped a plan to double gold royalties, opting instead to keep rates stable unless gold prices breach the $5,000 per ounce mark. This regulatory reprieve has given Caledonia and its lenders the “fiscal certainty” required for such a massive capital outlay.

Construction is expected to hit full stride through 2027, with the first gold pour scheduled for late 2028. If successful, Caledonia will not only dominate the local market but also provide a blueprint for modernizing Zimbabwe’s aging mining infrastructure through advanced biotechnology and transparent financing.

The mine is designed for longevity and high output, with a projected lifespan of 10.8 years and a target to produce 200,000 ounces of gold annually once it reaches full capacity in 2029.