Will Tia Maria construction be disrupted by community protests by year-end 2026?

Tia Maria has a decade of protest history, but the fact that construction has reached 24% without reported disruption suggests community opposition has diminished or been managed since permits were secured. The committee noted that management reports completion percentages but not protest activity — this gap means disruption could be underestimated. However, the project has cleared its most contentious regulatory hurdles (environmental permits). The Peruvian government has shown willingness to support the project. Historical base rate for protest-related mining disruption in Peru is meaningful but not dominant. Low confidence due to the community sentiment data gap.

The decade-long opposition was primarily about preventing the project from being approved. Now that construction is underway with active permits, the legal and institutional framework supports continued construction. Protests would need to be severe enough to force government intervention or court orders — a higher bar than protesting a pending permit. The Taxco strike (19 years) shows SCCO can face extended labor disputes, but that's a different dynamic than community protest. Los Chancas blockage by illegal miners is qualitatively different (criminal activity, not community opposition). On balance, the institutional framework now favors continued construction.

The water resource concern that drove opposition has not been resolved — only managed through permits. Agricultural communities in the Arequipa region remain concerned about water. As construction becomes more visible and large-scale, it could reignite opposition. Peru has seen multiple mining protests succeed in stopping projects even after permits were granted (e.g., Conga, which was fully permitted but never built due to sustained opposition). The 9-month timeframe is long enough for a protest cycle to emerge. However, SCCO's operational presence in Peru for 60+ years and government support are stabilizing factors.

Construction is underway and advancing (24%). The most common pattern for Peruvian mining opposition is to fight during the permitting phase — once construction begins, the economic inertia (jobs, investment, government commitment) makes stopping the project politically costly. SCCO has already invested $800M. The government has shown support. While protests are possible, a disruption significant enough to halt construction requires either sustained mass mobilization or a court order. The probability is below base rate for 'any disruption at all' because construction has already progressed without incident.

The resolution criteria is broad — 'any construction stoppage, delay, or suspension attributable to community protests.' Even temporary delays (a few days) from road blockades or worker intimidation could qualify. In Peruvian mining, some level of protest activity is common — the question is severity. Given the decade of opposition and the water resource concerns, some protest activity during a 9-month window is plausible. However, a significant disruption (weeks-long stoppage) is less likely given the institutional support. The broad resolution criteria pushes probability higher.

The committee resolved that Los Chancas blockage is specific, not systemic — Tia Maria proceeding contradicts systemic failure narrative. This resolution implies that the protest risk at Tia Maria is lower than what a systemic-failure model would suggest. Government support, economic investment, and cleared permits create a strong institutional buffer. Protest disruption probability is below what the decade-long history would superficially suggest because the permitting phase — where opposition was strongest — is now past.

Construction at 24% without disruption. Permits secured. Government support. Historical opposition was about preventing the project — now it's being built. Probability of significant disruption is moderate but below 50%. 30% reflects tail risk from unresolved water concerns.

9 months is a long window. Some level of protest activity in Peruvian mining is base-rate ~20-30%. Tia Maria's contentious history pushes above base rate. But institutional support and sunk investment provide protection. 35% balances historical risk with current institutional factors.

The Conga precedent (fully permitted, never built) is the key bear case but that project faced fundamentally different water dynamics (high-altitude lake destruction). Tia Maria's water concerns are about desalination plant adequacy — less emotive. Probability in low 30s. Community data gap prevents higher confidence.