SHERPA v. Nifty Project Comparison – Excel Data Download

SHERPA vs. Cyprium: Cost Analysis of the Nifty Copper Project

Cyprium Metals has positioned the restart of its Nifty copper project in Western Australia as a low-capex, quick-turnaround brownfield development. The company reports capital costs of A$402 million and operating costs of A$57.10 per tonne—figures that suggest a streamlined execution strategy leveraging legacy infrastructure and existing processing facilities.

But how do these numbers compare to a standardized, independent estimate?

In this analysis, Costmine Intelligence used SHERPA—our proprietary cost modeling software—to replicate the project’s assumptions and calculate capital and operating costs based on current market rates, location-adjusted inputs, and a fully scoped cost framework. SHERPA integrates labor, materials, equipment, energy, and indirect costs—including categories often excluded from early internal estimates such as construction management, owner’s costs, and escalation allowances.

The result: SHERPA estimates total capital costs at US$561 million, a significantly higher figure driven by the inclusion of indirects and contingency. On the operating side, SHERPA produced a cost estimate of US$53.04 per tonne—lower than Cyprium’s—but reflecting a more comprehensive breakdown of site-level expenses.

This comparison highlights the importance of benchmarking brownfield restart budgets against independently modeled data. Underestimating indirects, or assuming full usability of legacy assets, can create material blind spots in financial planning.

Fill out the form to access the full Excel file, which includes:

  • Line-by-line SHERPA capital cost outputs

  • Operating cost breakdown by category (labor, energy, maintenance, etc.)

  • Direct comparisons with Cyprium’s disclosed figures

  • Assumptions used for both SHERPA and Cyprium models

  • Currency conversions and escalation logic

  • Life-of-mine cumulative cost comparisons

Whether you’re a developer, consultant, or investor, this file provides a detailed view of what it really costs to bring a brownfield asset like Nifty back into production—and how internal estimates measure up to independent benchmarks.

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