China's Sulfuric Acid Export Ban Threatens Global Silver Supply
China has announced a ban on the export of sulfuric acid starting next month, which could last through the remainder of 2026. This decision is expected to exacerbate the already tight global silver supply. Sulfuric acid is crucial in copper mining, and a shortage or price spike could significantly impact copper output. Since approximately 70% of silver mining supply is a byproduct of copper production, reduced copper mining could lead to decreased silver production. The ongoing conflict in Iran has already strained global sulfuric acid supplies, with prices soaring due to logistical challenges in the Middle East. China aims to protect its domestic supply by halting exports, which could further impact copper mining industries in countries like Chile, the Democratic Republic of Congo, and Zambia. 
