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Today on The Mining Insider: Sibanye-Stillwater launched tender offers on May 6 to retire all $675 million outstanding of its 4% senior notes due 2026 — a full any-and-all offer — and up to $75 million of its 4.5% notes due 2029 at $962.50 per $1,000, funded by a new dollar-denominated bond issuance. The 2026 notes are set to settle May 15. The move is part of Sibanye's multi-year restructuring following the collapse of platinum group metal prices and comes one week after the fatal Kloof 8 shaft accident. Separately, a research note from Columbia University's Center on Global Energy Policy published May 5 documents copper smelter treatment and refining charges falling to negative $90 per tonne in the spot market in March 2026. Antofagasta agreed to zero TC/RCs for 2026. Glencore's Philippines smelter has already been halted. The US has only two active copper smelters remaining — Rio Tinto's Garfield facility in Utah and Freeport-McMoRan's Miami operation in Arizona. Authors Kevin Brunelli and Dr. Tom Moerenhout recommend production tax credits, modernization grants, and a TC/RC price floor mechanism. And Pan American Silver reported Q1 2026 results: $488 million in free cash flow, a record $1.8 billion in cash and short-term investments, and a $91.79 per ounce realized silver price. Full-year guidance of 25-27 million ounces silver reaffirmed.
Stories Covered: - Sibanye tender offer: $675 million 4% 2026 notes retired, up to $75 million 2029 notes, new bond issuance, settlement May 15 - Western copper smelter crisis: TC/RCs at negative $90/tonne March 2026, Antofagasta 2026 benchmark at $0, Glencore Philippines halted, US down to 2 active smelters - Pan American Silver Q1 2026: $488 million FCF, $1.8 billion cash, $91.79/oz silver realized, guidance reaffirmed
Commodities: Silver, gold, copper, platinum group metals, rhodium Jurisdictions: South Africa, United States, Canada, Philippines, Namibia, Japan, Chile
