The Democratic Republic of Congo's mining sector is facing mounting pressure from two converging external shocks: the ongoing conflict in the Middle East and Beijing's decision to suspend exports of sulfuric acid, a critical chemical reagent used in hydrometallurgical copper processing. The combination is straining operations across one of the world's most significant copper and cobalt producing regions, with consequences that extend well beyond the DRC's borders.
Sulfuric acid is indispensable to the solvent extraction and electrowinning (SX-EW) process, the dominant method used by large-scale copper miners in the DRC's Katanga province to produce cathode copper. China has historically been a primary supplier of the chemical to African mining operations, and Beijing's embargo — triggered in response to regional tensions linked to the Iran conflict — has left operators scrambling to identify alternative supply chains. With no immediate substitute supplier at comparable scale or cost, producers face the prospect of reduced throughput or outright curtailment of processing capacity.
The timing is particularly damaging. The DRC accounts for roughly 70 percent of global cobalt production and is among the top five copper producers worldwide. Any sustained disruption to processing capacity has direct implications for global battery supply chains, EV manufacturers, and the energy transition metals market. Major operators including Glencore, Ivanhoe Mines, and a constellation of Chinese joint-venture partners have significant capital deployed in the region and are now navigating an input cost and availability crisis that was largely unforeseen at the start of the fiscal year.
Beyond the immediate chemical supply crunch, the episode highlights the structural vulnerability of DRC mining infrastructure to geopolitical shocks originating thousands of kilometres away. The country's road and rail logistics remain underdeveloped, limiting the speed with which alternative acid supply — potentially sourced from Southern Africa, the Middle East, or Europe — could be rerouted into Katanga. Port congestion at Durban and Dar es Salaam, the two primary import gateways for heavy industrial inputs into the DRC's landlocked mining belt, adds further friction to any rapid resupply effort.
For the broader African critical minerals investment community, the crisis underscores the need for in-region sulfuric acid production capacity — a gap that some operators have explored through smelter-linked acid plants but which remains largely underdeveloped at the scale the DRC requires. Industry observers expect short-term production guidance downgrades from several operators as Q3 and Q4 processing schedules are revised. The situation is being closely watched by commodity traders and off-take agreement holders, particularly those with exposure to long-term cobalt and copper contracts tied to DRC output volumes.