Copper and gold mining has been advancing since 2002 with development and launch of operations at Drmbon deposit. Approximately 27–28 thousand tons (wet weight) of concentrates are produced with average copper content of 19–21% and gold content of 32–34 g/t. Azerbaijan considers any mining operations in Nagorno-Karabakh illegal and has vowed to engage an international audit company to determine the damages suffered by Azerbaijan's state-run ore management company as a result. In 2018, the government of Azerbaijan announced that it was planning to appeal to an international court and the law enforcement agencies of the countries where the mining companies involved are registered.