Southern Palladium Transforms Bengwenyama Project into Dual PGM-Chrome Co-Product Operation

Prime Location of Bengwenyama in the Bushveld Complex’s Tier-1 Mining District

Southern Palladium holds a 70% stake in the Bengwenyama Project, situated within the Eastern Limb of South Africa’s Bushveld Complex in Mpumalanga province, approximately 300 kilometres east of Johannesburg. This region is a well-established hub for platinum group metal mining, hosting multiple operating and development-stage assets managed by leading producers such as Implats, Northam Platinum, and Valterra Platinum, as well as advanced projects like Two Rivers and Mototolo. This cluster of world-class operations highlights the tier-1 status of Bengwenyama’s location and the robust mineral endowment of the Eastern Limb.

The Bushveld Complex represents the world’s largest PGM resource base, with the Eastern Limb recognized as a prolific area for exploration and development. Southern Palladium’s ownership of Bengwenyama places it alongside major international and regional mining operators in a well-established, infrastructure-rich mining jurisdiction. Proximity to existing mines, processing plants, and skilled labor pools offers operational efficiencies and cost advantages. The strategic significance of the Bushveld Complex to global PGM supply chains attracts substantial institutional and commercial interest from investors, off-takers, and potential development partners.

Chromite Recovery Breakthrough Elevates Chrome to a Major Revenue Contributor

The latest company update reveals a dramatic enhancement in chromite recovery through updated metallurgical testwork. Previously, the prefeasibility study and optimised prefeasibility study modelled chromite recovery at 30%, treating chrome as a minor by-product credit. However, definitive feasibility study testwork now demonstrates chromite recovery of 85.6%, a 55.6 percentage point increase. This breakthrough has repositioned the project from a PGM operation with secondary chrome value to a balanced PGM-chrome co-product development with significant revenue streams from both commodities.

This improvement translates into a substantial increase in chrome concentrate production. At a run-of-mine feed rate of 2.4 million tonnes per annum, chrome concentrate output has risen from 0.35 million tonnes per annum (PFS) to approximately 1.054 million tonnes per annum (DFS testwork), tripling chrome production volume. Chrome concentrate grade remains stable at about 42% to 42.2% Cr8O3. Using May 2026 benchmark pricing of US$320 per tonne for 42% Cr8O3 concentrate CIF, this increased chrome output becomes a meaningful revenue contributor alongside PGM sales. Although the company has not disclosed the incremental revenue impact, the volume increase suggests a significant boost to project cash flows and financial resilience.

Improved PGM Recovery and Concentrate Grade Enhance Processing Economics

Alongside chromite advancements, Southern Palladium’s updated metallurgical testwork shows notable improvements in PGM processing. Overall PGM recovery rose from 85.3% (PFS) to 87.6% (DFS testwork), a 2.3 percentage point gain. More significantly, PGM concentrate grade increased from 100 grams per tonne (4E) to 443.6 grams per tonne (4E), a roughly 4.4-fold enhancement. The final primary PGM concentrate achieves 505.9 grams per tonne on a 6-element (6E) basis, comprising platinum (44.8%), palladium (34.4%), ruthenium (9.4%), rhodium (7.6%), iridium (2.5%), and gold (1.3%).

These concentrate quality improvements reduce mass throughput, lower equipment sizing and energy consumption in downstream processing, and enhance commercial appeal to smelters and refiners. The PGM concentrate mass pull is only 1.2% of total run-of-mine feed, indicating efficient metal liberation and concentration. The prill split across six PGM elements plus by-product gold diversifies revenue streams and mitigates single-commodity price risks. While the company has not disclosed revised net revenue per ounce of PGM, the combination of higher recovery, elevated concentrate grades, and reduced processing intensity points to significant improvements in stage-1 and stage-2 cash operating costs versus the prefeasibility baseline.

Simplified Processing Flow with DMS Pre-Concentration Cuts Capital and Operating Costs

The definitive feasibility study refines the processing flowsheet to a simplified, conventional circuit that enhances technical performance while lowering capital and operational demands. A key innovation is the dense media separation (DMS) pre-concentration stage before the primary ball mill, which rejects waste material and upgrades run-of-mine feed from 5.2 grams per tonne (3E) to 7.2 grams per tonne (3E), losing only 1.2% to 2.2% of contained PGM. The DMS circuit achieves mass rejection between 24% and 31%, effectively reducing dilution before milling and halving the mass throughput in milling and flotation.

The flowsheet also features a coarser primary grind (30% passing 75 micrometres versus 60% in the prefeasibility study), protecting chromite particles from over-grinding and supporting higher chrome recovery. A secondary flotation circuit recovers PGM lost due to the coarser grind, maintaining overall recovery. An interstage chrome flotation step captures liberated chromite between flotation circuits. This tiered approach yields dual benefits: chromite recovery improvement from 30% to 85.6%, and multiple saleable products (coarse and fine chrome concentrates, primary and secondary PGM concentrates). The DMS pre-concentration lowers milling and flotation mass, reducing equipment size, energy use, and operating intensity, thereby improving unit production costs and project economics.

Two-Stage Development Balances Capital Investment and Revenue Growth

The optimised prefeasibility study (early 2025) proposes a two-stage development approach balancing capital deployment with phased revenue generation. Stage 1 targets 200,000 ounces per annum (6E) production with a peak funding requirement of US$279 million, 38% less capital than the original prefeasibility study. Stage 1 is economically viable standalone, delivering a 21.8% internal rate of return based on commodity price assumptions including platinum at US$1,200/oz, palladium at US$1,100/oz, rhodium at US$6,190/oz, ruthenium at US$450/oz, iridium at US$4,650/oz, gold at US$1,950/oz, nickel at US$18,249/t, copper at US$8,708/t, and chrome concentrate at US$225/t.

Stage 2 aims to ramp production to 400,000 ounces per annum, funded from Stage 1 cash flow, eliminating the need for additional external capital. Stage 2 alone shows a 26.4% internal rate of return using conservative PGM prices. Stage-1 all-in sustaining costs (AISC) are modelled at US$969 per 6E ounce, decreasing to US$821 per 6E ounce in Stage 2 as steady-state production is reached and full depreciation benefits apply. The combined project net present value at an 8% post-tax discount rate is US$857 million based on these price assumptions. This staged approach offers financing flexibility, proof-of-concept at reduced scale, and risk mitigation through phased capital deployment.

Robust Mineral Resource and Reserve Base Supports Long-Term Production

Southern Palladium’s Bengwenyama mineral resource base totals 40.25 million ounces across measured, indicated, and inferred categories for UG2 and Merensky reefs, confirmed in the 23 October 2024 update which included a 17% increase in Merensky indicated resources to 2.23 million ounces (7E). The resource is hosted in large, high-quality orebodies amenable to conventional underground mining methods common in the Bushveld Complex. The company announced a maiden probable ore reserve of 6.29 million ounces at 6.17 grams per tonne (6E) comprising 31.72 million tonnes of ore, based on measured and indicated resources, as detailed in the 28 October 2024 update.

The reserve supports the staged production plan, with 6.29 million ounces underpinning approximately 10.5 years of operation at combined Stage 1 and Stage 2 production rates (600,000 ounces per annum). This excludes potential reserve extensions from ongoing exploration. The larger mineral resource base indicates significant upside for resource conversion. This reserve-resource hierarchy is typical for early-stage projects where measured and indicated resources are mined initially, with inferred resources converted over time. The scale and grade consistency of UG2 and Merensky orebodies support the technical feasibility of mining and processing assumptions.

Chrome Provides Revenue Diversification and Resilience Amid PGM Price Volatility

Repositioning Bengwenyama as a PGM-chrome co-product operation enhances project resilience during PGM price downturns. Traditionally, PGM projects rely solely on platinum group metal prices for viability. Southern Palladium’s asset will generate about one-third of revenue from chrome concentrate at full production, diversifying income across distinct commodity cycles. Chrome demand, driven by stainless steel production linked to global infrastructure, industrial capacity, and automotive manufacturing, differs from PGM demand, which depends on autocatalysts, jewelry, and industrial uses.

South Africa is the world’s leading chrome producer with no substitutes for chrome in stainless steel. Long-term demand is underpinned by infrastructure and industrialisation in emerging markets. By producing 1.054 million tonnes per annum of chrome concentrate at 42% Cr8O3 (around 500,000 tonnes per annum contained Cr8O3), Southern Palladium taps into this structural growth. Increased chrome output can improve operating margins and project economics while providing revenue diversification. During PGM price slumps, chrome sales can sustain cash flows and returns above break-even levels that would challenge PGM-only projects.

Chrome Specification Challenges Remain Key Commercial Risk

Despite metallurgical advances, Southern Palladium has identified unresolved technical issues related to chrome contamination in the PGM concentrate. Current lab results show Cr8O3 levels between 3.2% and 3.9%, exceeding the company’s target of under 2.5%. Elevated chrome content could reduce the saleability of PGM concentrate to smelters and refineries, which impose strict limits on iron-group metals in precious metal concentrates.

Further metallurgical testwork and mine design studies are planned to address this. The company has not provided timelines or alternative processing options for achieving tighter chrome separation. Resolving this issue is a material technical risk that will determine the viability of the co-product strategy as currently modelled. Failure to meet specifications may require flotation circuit adjustments, grind size modifications, or alternative chrome rejection methods, potentially impacting recovery rates and operating costs projected in the definitive feasibility study.

Western Limb Exploration Potential Mentioned but Not Included in Current Plan

The update references exploration upside in the Western Limb of the Bushveld Complex but does not detail its role in Bengwenyama’s development. The Western Limb is part of the broader portfolio, but the definitive feasibility study and staged development focus exclusively on Bengwenyama in the Eastern Limb. Southern Palladium has not disclosed exploration licenses, resource estimates, or integration plans for Western Limb assets. Future updates may clarify their role in medium-term production or exploration growth beyond Bengwenyama’s Stage 1 and 2 ramp-up.

The emphasis at the Noosa Mining Investor Conference on Bengwenyama suggests Southern Palladium is prioritizing capital and technical resources on advancing this tier-1 Eastern Limb asset toward development. This focus aligns with the demands of progressing from prefeasibility through definitive feasibility and funding. The Western Limb reference indicates additional exploration optionality that could add value if Bengwenyama development proceeds successfully and resources become available for regional exploration acceleration.

Upcoming Milestones and Investor Considerations Post-Noosa Conference

Southern Palladium’s presentation at the Noosa Mining Investor Conference on 24 July 2026 marked a key step in communicating Bengwenyama’s enhanced value proposition to institutional investors and development partners. The detailed metallurgical results, staged development economics, and PGM-chrome co-product repositioning provide a solid foundation for funding discussions, off-take negotiations, and joint venture engagement. The accompanying slide deck covers exploration results, processing rationale, and financial modelling, supporting comprehensive investor and partner evaluation.

Investors should closely monitor progress on resolving Cr8O3 specification issues in the PGM concentrate and any processing flowsheet refinements from ongoing testwork. The next major milestone is expected to be completion of the full definitive feasibility study, including updated capital costs, construction schedules, mine design, sequencing, and resource-to-reserve conversions. Following this, Southern Palladium is likely to pursue funding with development partners, strategic investors, or lenders, alongside chrome and PGM off-take agreement negotiations. While no timing guidance was provided, early-stage PGM projects typically require 18 to 36 months from definitive feasibility completion to construction start, depending on financing and regulatory approvals.