Kırka represents one of the largest boron reserves in Turkey having an estimated reserve of 750.6 million tonnes of ore grading 28% boron.
[1] This is mainly in the form of tincal, although other borate minerals are present in smaller amounts.
[2] The Kırka mine is managed by the state-controlled company Eti Maden.
[3] An on-site refinery was added in 1984, producing about 840,000 tonnes of borax pentahydrate annually, mostly for use in cleaning products.
[2] The mining and refining facilities at Kırka employ a total of over 2,000 people.