Skip to content

Sphinx Mining Systems

Menu
  • Home
  • About
  • Our Services
    • Mining public disclosure
    • Eng. & proc. improvement
    • Mine Planning & Design
    • Sustainability
    • Workforce training
  • Blog
  • Contact Us

Category: Mineral economics

General / Mineral economics / Mining business / Uncertainty

What NASA’s James Webb Telescope Project Teaches Us About Cost Overruns

Image of Carina Nebula taken by the James Webb Telescope. Credits: NASA, ESA, CSA, and STScI This week, NASA released the first photographs from the James Webb Space Telescope. They …

General / Mine planning / Mineral economics / Mining business / Public disclosures

RE: On the connection between mine feasibility studies, valuation, and impairment analysis

In November 2021, I posted a blog post about the connection between feasibility studies, valuation, and impairment analysis. I recently came across a comment letter by SEC staff that, I …

General / Mine planning / Mineral economics / Mining business

On the connection between mine feasibility studies, valuation, and impairment analysis

Most mining engineers are taught how to do mine feasibility studies in school but not all are familiar with property valuation and impairment tests. However, valuation and impairment analysis are …

General / Mine planning / Mineral economics / Mining business / Public disclosures / Uncertainty

Implications of mining project cost overruns for QP liability

Cost overruns are not new to engineering projects. It is a problem when the scale and frequency is high. Unfortunately, the mining industry has a reputation for cost overruns during …

Gold bullion
General / Mine planning / Mineral economics / Mining business

Bull/Bear Markets and Mine Plans

This week, I read several articles on gold’s bear run on the markets (you can find my favorite here). Several news outlets noted that gold dipped below $1,500/oz., which takes it …

Copyright © 2025 Sphinx Mining Systems – OnePress theme by FameThemes