Eti Mine Works (Turkish: Eti Maden İşletmeleri Genel Müdürlüğü) is a Turkish state-owned mining and chemicals company focusing on boron products. It holds a government monopoly on the mining of borate minerals in Turkey, which possesses 72% of the world's known deposits.[1] In 2012, it held a 47% share of global production of borate minerals, ahead of its main competitor, Rio Tinto Group, which held 23%.[2]