South Crofty Gets Its Financing, Grasberg Resets Its Timeline, Codelco Eyes $2 Billion in Savings, and Gold Navigates Rising Bond Yields

May 21, 2026 | Host: Logan Ore | Runtime: ~11 minutes Today on The Mining Insider: 1. SOUTH CROFTY FINANCING SECURED — Cornish Metals (AIM: TIN) announces £52M credit facilities from National Wealth Fund (28.45% shareholder, £35M) and Vision Blue Resources (29.08% shareholder, US$22.75M). Six-month term, 13% p.a. interest compounding daily. Up to £16M earmarked for bond escrow required as condition of issuance of US$210M Nordic bond (placed May 7). Remainder funds underground development, shaft refurbishment, surface infrastructure. Facilities repayable within 10 business days of qualifying equity raise. Company engaging strategic offtakers and institutional investors for full project financing. FID process ongoing. South Crofty: last viable tin mine in EU's primary supply zone. 2. GRASBERG BLOCK CAVE AT 50% CAPACITY — Freeport Indonesia CEO Tony Wenas confirms mine running at 50% of nameplate capacity following 2025 accident that killed 7 workers and flooded the cave with wet material. Ore from GBC significantly wetter than design parameters; chute modifications required before safe throughput increase. Roadmap: 65% capacity later in 2026 → full run-rate by end of 2027. 2026 projected output: 800M lbs copper cathode + 700,000 oz gold. Full capacity: 1.2B lbs copper cathode + 1M oz gold/year. Permit MOU extended beyond 2041; 12% stake to transfer to Indonesian government at extension; ~$20B earmarked for post-2041 investment. 3. CODELCO $2 BILLION MINE UNIFICATION — Chile's state copper producer proposes consolidating Chuquicamata, Radomiro Tomic, and Ministro Hales under unified management. Plan presented to board per Bloomberg. Targets $2B in combined savings and revenue gains starting 2027. Consolidates operational planning, shares processing plants, blends ore to customer specs. Possible management headcount reduction; on-the-ground crews intact. Unions already in talks. Context: rising energy + sulfuric acid costs (Middle East), declining ore grades, stagnating output, rising debt. 4. GOLD SQUEEZED BY BOND YIELDS — Gold falls $84 to $4,482 (lowest since late March; -20% from Jan 29 ATH of $5,595). Trigger: hot April CPI; 30-yr Treasury yield highest since 2007; 10-yr at 4.64%. Fed rate-cut odds: 97.4% of market now expects hold at June meeting (CME FedWatch); rate hike speculation entering fixed income. Moody's Aaa→Aa1 US downgrade (May 16) adds risk premium to long-duration Treasuries. Gold rebounds to $4,514 on May 21 as yields ease. Goldman Sachs: central bank buying in H1/2026 exceeds projections. MKS PAMP target $5,800 by year-end. Tomorrow's Flashpoint: Russia UGC Dutch auction — May 26. Second attempt to sell seized 67.2% stake in Russia's fifth-largest gold miner. Starting price may be cut ~50% from original $1.9B to ~$1.1B after zero bids in first attempt. Sources: Investegate/RNS, Channel NewsAsia/Reuters, Mining.com/Bloomberg, Kitco News, CME Group