Core Insights - Red Mountain Mining (ASX:RMX) has successfully debuted on the U.S. OTCQB market, with shares rising 36% to 54 cents per share, outperforming its previous trading on the ASX amid a challenging market environment [1][2] - The company's OTCQB listing, ticker RMXFF, experienced strong market activity and high levels of engagement from U.S.-based investors [2] - Red Mountain Mining is focusing on U.S. antimony projects, aiming to capitalize on the recent interest in critical minerals driven by the Trump Administration's initiatives [3] Company Developments - Red Mountain Mining has a prospective antimony-gold project, Hillgrove, located near Larvotto Resources, which has seen increased interest following China's export bans [4] - The company noted a recent takeover attempt by United States Antimony Corporation, which has a market capitalization of A$1.5 billion [4] - Red Mountain Mining plans to present at the Australian Rare Earths and Critical Minerals Investor Conference, indicating ongoing engagement with investors and stakeholders [2]