Congo's leading copper and cobalt producers have had some orders for key leaching chemicals cancelled or withdrawn by suppliers this month, forcing miners to cut usage and consider output reductions as Middle East-linked nL6N40V09S supply disruptions deepen, industry sources with knowledge of the matter told Reuters. The Democratic Republic of Congo is the world's top cobalt producer and Africa's largest copper supplier - making it a key plank in global supply chains for electric vehicles and the clean-energy transition. Copper and cobalt mining in the country depend heavily on sulfuric acid and sulphur-based ... (full story)