RareX (ASX: REE) has just put its foot on a highly prospective piece of land 300 kilometres east of Kalgoorlie. It believes this land is highly prospective for niobium, previous drilling has already shown it hosts niobium, it's now a question of how much and at what grade. Niobium has driven the enormous success of WA1 Resource, which is now worth $1.3 billion, RareX is worth just $13 million and that difference highlights the enormous upside for RareX shareholders as it starts to drill at its project in WA. ---- Produced by Resource Media ---- The Hole Truth is a product of Read Corporate. Please note that Read Corporate does not provide investment advice and investors should seek personalised advice before making any investment decisions.