Glencore shrinks job of billionaire copper head amid Congo probe

Glencore reduced the role of its billionaire head of copper, Aristotelis Mistakidis, shaking up the business after a review in the Democratic Republic of Congo raised questions about accounting and management. Mistakidis, one of Glencore’s largest shareholders and a key lieutenant of CEO Ivan Glasenberg for more than a decade, will lose control of industrial copper operations including mines and focus on the trading side of the business, according to people familiar with the plans.