Ivanhoe’s Platreef expansion: throughput, hoisting and cost lens for mine planners
Reviewed by Joe Ashwell

First reported on MINING.com
30 Second Briefing
Ivanhoe Mines’ Platreef project in Limpopo has completed construction of the 4‑Mtpa Shaft #3, broken ground on a 3.3‑Mtpa Phase 2 concentrator and started widening Shaft #2, keeping its Phase 2 expansion on schedule for end‑2027. Hoisting capacity is set to rise five‑fold to about 5 Mtpa, lifting output from roughly 100,000 oz to over 450,000 oz of PGMs plus gold, with a projected Phase 2 life‑of‑mine cash cost of $599/oz net of byproduct credits. A future Phase 3 could take throughput to 10.7 Mtpa and extend mine life by 29 years.
Technical Brief
- Shaft #3 is designed for 4 Mtpa hoisting, relieving current ore and waste constraints on Shaft #1.
- Widening of Shaft #2 has commenced; once complete it will be Africa’s largest hoisting shaft.
- Shaft #2 is scheduled to hoist labour and materials by end‑2028, and ore by end‑2029.
- Phase 2 concentrator earthworks are underway, targeting completion of the 3.3‑Mtpa plant by end‑next‑year.
- Ownership structure includes 26% held by a B‑BBEE group and 10% by the JOGMEC‑ITOCHU consortium.
- The orebody averages 26 m of continuous, flat‑lying mineralisation, around 25 times thicker than incumbents.
- Thick, flat geometry enables high mechanisation, directly supporting lower unit mining costs and improved safety conditions.
- Preliminary economic assessment forecasts >1 Moz PGMs+Au per year plus ~22 kt Ni and 13 kt Cu after all expansions.
Our Take
Ivanhoe Mines features repeatedly in our recent coverage, from the Platreef Phase 2 concentrator HPGR contract with Weir (March 2026) to revised Kamoa-Kakula copper guidance (April 2026), signalling that Platreef’s platinum-group, nickel and copper output is being advanced in parallel with a broader portfolio reset.
With a 35-year mine life post-Phase 2 and a further 29 years contemplated in Phase 3, Platreef in South Africa stands out in our database as one of the longer-life polymetallic assets, which typically underpins more aggressive downstream and offtake negotiations for platinum, palladium, rhodium and nickel than shorter-life PGM mines.
The 26% B-BBEE and 10% JOGMEC-ITOCHU ownership stakes at Platreef give both domestic empowerment interests and Japanese buyers structural leverage over a low-cost, multi-decade PGM–nickel–copper supply source, which is strategically relevant given Ivanhoe’s concurrent critical-minerals positioning in projects like Kipushi under US-linked initiatives.
Prepared by collating external sources, AI-assisted tools, and Geomechanics.io’s proprietary mining database, then reviewed for technical accuracy & edited by our geotechnical team.
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