The Role of Near-Earth Asteroids in Long-Term Platinum Supply

Abstract

High-grade platinum-group metal concentrations have been identified in an abundant class of near-Earth asteroids known as LL Chondrites. The potential existence of a highvalue asteroid-derived mineral product is examined from an economic perspective to assess the possible impacts on long-term precious metal supply. It is hypothesized that extraterrestrial sources of platinum group metals will become available in the global marketplace in a 20-year time frame, based on current trends of growth in technology and increasing levels of human activities in near-Earth space. Current and projected trends in platinum supply and demand are cited from the relevant literature to provide an economic context and provide an example for evaluating the economic potential of future asteroidderived precious and strategic metals. Since the launch of Sputnik in 1957, mankind has traveled a road of increasing dependence on the space frontier, rapidly advancing technology and creating industries that have become a vital part of global economic activity. Commercial activities in Earth