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Southern Palladium turns Bengwenyama chrome into a major value driver

Mining By Maxwell Dee 4 min read

Southern Palladium’s updated study has lifted the Bengwenyama project’s post-tax NPV to US$1.96 billion, driven by sharply improved chrome recovery and a stronger commodity price deck. The project still needs a definitive feasibility study, permits, funding and commercial offtake arrangements before those figures can be tested in development.

  • Post-tax NPV rises 129% to US$1.961 billion
  • IRR increases to 39.1% and payback falls to 2.8 years
  • Chrome concentrate output increases to 17.2 Mt over the mine life
  • Peak funding requirement rises 18% to US$329 million
  • Life-of-mine plan includes 30% Inferred Mineral Resources

Bengwenyama NPV rises to US$1.96 billion

Southern Palladium Limited (ASX:SPD, JSE:SDL) has more than doubled the headline value of its 70%-owned Bengwenyama PGM-chrome project, with an updated prefeasibility study putting post-tax NPV at US$1.961 billion on a 100% project basis. That compares with US$857 million in the July 2025 study, while post-tax IRR rises from 26.4% to 39.1% and payback from first production shortens to 2.8 years.

The improvement is substantial, but it is not powered by one variable alone. Southern Palladium has incorporated stronger metallurgical recoveries, a redesigned processing approach and a higher commodity price deck. The study assumes a life-of-mine realised 6E basket price of US$2,210 per ounce, up from US$1,406 per ounce in the earlier study. The company’s July metallurgy results had already shown chromite recovery rising sharply from the previous 30% assumption.

Chrome shifts from credit to co-product

The most important technical change is the treatment of chrome as a meaningful co-product rather than a secondary by-product. Chromite recovery rises to 85.6% at a saleable grade of 42.2%, lifting life-of-mine chrome concentrate production to 17.2 million tonnes from 6 million tonnes in the OPFS. Stage 1 is designed to produce about 450,000 tonnes per year of chrome concentrate, rising to roughly 1 million tonnes per year at Stage 2.

The flowsheet uses dense media separation to reject about 26% of run-of-mine material before milling, followed by gravity and flotation circuits for chromite recovery. Southern Palladium says the approach reduces the material entering the milling and flotation circuits, while larger-scale confirmatory testing of Jameson flotation cells remains planned. The company’s earlier plant redesign had followed improved chromite test work and the addition of dense media separation.

PGM performance also improves. Life-of-mine 6E recovery rises to 87.5% from 85%, with 7.72 million ounces recovered over a 33-year mine life. Locked-cycle test work produced a final concentrate grading 505.9 grams per tonne 6E, compared with 100 grams per tonne in the OPFS, which the company says could support discussions with smelting and refining partners. AISC including by-products is US$943 per 6E ounce, while chrome and base-metal credits reduce the reported cost to US$496 per 6E ounce.

Funding rises as the project moves toward DFS

The stronger economics come with a higher headline funding requirement. Peak funding is estimated at US$329 million, up 18% from US$279 million, although Southern Palladium attributes much of the US dollar increase to a stronger assumed South African rand. The staged strategy is unchanged: Stage 1 targets approximately 200,000 ounces of annual 6E production, with expansion to about 420,000 ounces in Stage 2, expected to be funded largely from Stage 1 cash flow.

There are material qualifications beneath the headline valuation. The 41.9-million-tonne life-of-mine plan includes approximately 30% Inferred Mineral Resources, even though those tonnes are excluded from the unchanged Ore Reserve. The updated study remains at prefeasibility accuracy of plus or minus 15% to 25%, its metallurgical results come from laboratory test work, and no binding offtake agreements are in place.

The definitive feasibility study is expected by the end of the first quarter of 2027. Before construction can move ahead, Southern Palladium also needs to progress the Mining Right process, waste-management and water-use permits, financing and commercial discussions with smelters and refiners. The project’s sensitivity to prices is pronounced: a 15% move in the 6E basket price changes post-tax NPV by approximately US$454 million, leaving the next study to establish whether the improved value is as durable as it is large.

Bottom Line?

The updated PFS materially strengthens Bengwenyama’s paper economics, but the next test is whether DFS work, permitting, financing and commercial terms can convert laboratory recoveries and forecast prices into a financeable mine plan.

Questions in the middle?

  • How much of the projected value remains if PGM prices or grades fall below the updated assumptions?
  • Will larger-scale Jameson cell testing confirm the laboratory flowsheet and its projected capital and operating costs?
  • Can Southern Palladium secure the Mining Right, project funding and binding concentrate offtake arrangements before DFS completion?

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