Elektroprivreda Srbije is a joint-stock electric utility power company fully owned by the Government of Serbia, with headquarters in Belgrade, Serbia. It was founded in 1991 and it has 24,013 employees, making it the largest enterprise in the country.

RB Kolubara is a Serbian coal mining and smelting complex with headquarters in Lazarevac, Kolubara District. The mine has coal reserves amounting to 2.2 billion tonnes of lignite, one of the largest lignite reserves in Europe, and it produces 22.6 million tonnes of coal per year.