Today on The Mining Insider: PT Freeport Indonesia has confirmed the full restart of the Grasberg Block Cave copper mine in Central Papua has been pushed to early 2028 — a full year later than prior guidance. Operations are currently running at 40-50% of capacity. The company is targeting 65% in H2 2026, 80% by mid-2027, near-full by end-2027, and full capacity in early 2028. 2026 copper guidance for Grasberg has been cut from 1 billion pounds to 700,000 pounds. The September 2025 mudflow that killed seven workers and deposited 800,000 metric tons of wet material into the underground mine workings remains the root cause of the extended recovery.
Separately, China Railway Resources Universal Limited (CRRU) has presented a proposal to the DRC government to develop a major new copper-cobalt complex in the Grand Kasai region using assets held by state miner MIBA. Projected capacity: 200,000-500,000 tonnes of copper per year with a 250-500 MW integrated energy component. Presented to the DRC Mines Ministry on May 6 and described by Minister Kabamba as a major strategic project receiving the personal attention of President Tshisekedi. Key parameters — resource estimates, capex, timeline — remain undisclosed.
And the United States and South Africa held their highest-level bilateral minerals meeting of the year in Johannesburg on Wednesday, with ~25 officials from both sides present alongside ~20 mining and banking executives. The US delegation included officials from Treasury, State, Commerce, Defense, and Energy, plus the Ex-Im Bank and DFC. The focus was on PGMs, chromium, manganese, vanadium, and rare earths — South Africa is the US's dominant supplier of platinum, rhodium, chromium, and military-grade vanadium. The Phalaborwa rare earths project (DFC-backed, $50M equity) was cited as a priority. A project priority list is being developed.
NOTE: Audio not available for this episode due to ElevenLabs quota exhaustion. Episode published as text-only. Resume audio production when credits are topped up.
Stories Covered:
1. Freeport Grasberg — full restart pushed to early 2028, production at 40-50%, 2026 copper guidance cut from 1B to 700,000 lb
2. China Railway / MIBA — 200,000-500,000 t/yr copper-cobalt proposal, Grand Kasai, DRC
3. US-South Africa minerals talks — Johannesburg, highest-level bilateral meeting 2026, PGMs, rare earths, Phalaborwa
Commodities: Copper, cobalt, platinum group metals, rhodium, chromium, manganese, vanadium, rare earths
Jurisdictions: Indonesia, DRC, South Africa, United States, China