Red Mountain Mining (ASX:RMX) has been approved to list on the OTCQB Markets, beginning trade at market open today (17 November 2025) using the ticker code ‘RMXFF’.
The company intends to increase direct trading in the US, where its Yellow Pine and Utah antimony projects are located.
Red Mountain, which has a market capitalisation of $23.76 million, describes the listing as a move to strategically position itself alongside other US based peers focused on aiding the critical minerals supply chain.
Yellow Pine is located less than 2km from Perpetua Resources’ (NASDAQ:PPTA) Stibnite Project and proximal to the Red Mountain’s recently acquired Silver Dollar Antimony Project.
Production at the Silver Dollar Project has historically returned ore grades of 17.7% antimony, as reported by Mining.com.au.
Following halts on Chinese exports, global demand for antimony has increased significantly due to China’s position as a supplier.
China is responsible for almost half of the world’s mined antimony.
China, along with Russia and Tajikistan, account for 90% of global antimony production, which is creating significant supply risks for Western nations including Australia, Canada, and the US.
The country has since eased tensions by reopening limited exports of key critical minerals, though still restricting the US’ defence sector, as reported by Mining.com.au.
Write to Maddison Elliott at Mining.com.au
Images: Red Mountain Mining
