Resolute, which operates the Syama mine in the country, has been in talks with mining and tax authorities in the capital Bamako, as the country’s military-controlled leadership pushes for increased revenue from its mineral resources. Mali is Africa’s third-biggest gold producer and is looking to the metal to offset sanctions that threaten key sources of government revenue.
Resolute’s shares were down around 28% near noon in Sydney, valuing the miner at just over A$1-billion ($660-million).
Mali’s junta has in recent months ramped up efforts to renegotiate existing mining contracts with foreign companies including B2Gold Corp., Allied Gold Corp. and AngloGold Ashanti Plc. Last month it briefly jailed four employees of Barrick Gold Corp. and threatened to take back a concession to a mine.
Read More: Mali Threatens to Let Barrick Mine Permit Lapse Over Dispute
Resolute’s employees are being treated well and the company is in “regular communication” with all three, the Perth-based miner said on Monday. Mali’s mining ministry has not commented on the arrest. The Australian government did not immediately respond to a request for comment.
Resolute has ramped up output at its Syama mine in the nation’s southeast and a second phase of the mine is expected to be in operation in 2025. The government holds a 20% stake in the project, which produces around 2.4 million tons of ore a year, according to Resolute’s website.
Subscribe to The Bloomberg Australia Podcast on Apple, Spotify, on YouTube, or wherever you listen.
“Resolute has followed all official processes with respect to its affairs and has provided the authorities with detailed responses to all the claims made,” the company said. “While Resolute is working toward a settlement with the Government of Mali to help secure the long-term future of the Syama Gold Mine, the utmost priority remains the safety and wellbeing of its employees.”

Gold grain at a refinery in Australia. Photographer: Bloomberg Creative Photos/Bloomberg