Top Mining Companies Lose $264 Billion in September Market Downturn

The world’s top 50 mining companies faced a significant market downturn in September, losing a combined $264 billion in value. This decline brought their total market capitalization to $2.26 trillion, marking the second-largest monthly drop since late 2019. The losses were largely attributed to inflation concerns driven by rising oil prices, which triggered a bond sell-off and pushed Bloomberg’s government bond yield indicator to its highest level since mid-2008. The U.S. Federal Reserve’s decision to raise its key rate by 0.25 percentage points to a range of 3.75-4% on September 16 further exacerbated the situation.

Gold mining companies were particularly hard hit, with all 15 represented in the ranking ending September in negative territory. Their combined market value plummeted by $79 billion, a 12.7% decrease. Shandong Gold shares fell the most, dropping 27.8% after the company reduced its gold production target for 2026. Kinross Gold lost 21.3% following revisions to its production forecasts due to harsh winter conditions and operational challenges at its mines.

Copper producers also saw substantial losses, with a $44 billion decline in market value despite stable copper prices. BHP experienced the largest absolute drop, losing $26.4 billion in market capitalization. The company faced additional pressure after a worker died at its Escondida copper mine in Chile, leading to a temporary suspension of operations.

Lithium carbonate futures in Guangzhou fell 22.5%, to 122,800 yuan per tonne, following a change in inventory calculation methodology by the SMM agency. This adjustment more than doubled the estimated lithium inventories in China to 175,000 tonnes. As a result, Albemarle and Ganfeng Lithium lost over one-fifth of their value and dropped out of the Top 50 ranking.