In 1812, obstructed by the wars from all sides, mining operations in Rudnik were abandoned, and plenty of extracted and non-smelted ore was left on the surface. It remained there until 1865, when the operations in the shafts were resumed.
After the assassination of Duke Mihailo, the operations were suspended. They resumed in 1869, but, before long, the mine was shut down again until 1890, when the operations were suspended yet again.
In 1894, Miša Mihailović, an engineer from Belgrade, took concession for exploring and exploiting the mines of Kačer, as well as the forests in that zone. Ore mining operations continued on a small scale, and the operations decreased even more.
Austro-Hungarian forces with their German allies occupied Rudnik on October 15th, 1915.Occupational authorities started mining and foresting immediately. There are documents proving that there was a mining at Rudnik in 1916, however there are no proofs of any activities during 1917 and 1918. therefore mining activities were interrupted until 1952.
Intensive mining has started after World War II on July 2nd, 1952, when modern mining company has been formed and last until today . At the end of the 1980s, on August 19, 1987, a disastrous fire broke out in the Flotation Plant, and the entire facility burnt down.
In January 1988, a new Flotation Plant was put into operation. It was the most modern plant in this part of Europe. After overcoming the crisis and separating from ‘Kombinat Trepča’ in 1989, Rudnik operated successfully until June 1992, when the production stopped due to the war and the sanctions imposed by the international community. Three years later, in May 1995, Rudnik resumed its operations. The war-ridden 1990s were not as successful as the 1980s. In 1997, the concentrates started being exported to the foreign markets. The company operated successfully until 2003, when it took a six-month break due to slow business and low prices of metal at the stock exchange. After the six-month break, it resumed its operations in November 2003.
On September 23rd, 2004 Rudnik was privatized, sold at an auction to company ‘Contango’.