og ener ation ▁plants ▁were ▁completed ▁between ▁ 2 0 0 7 ▁and ▁ 2 0 0 9 . ▁ ▁The ▁production ▁of ▁s oda ▁ash ▁started ▁with ▁an ▁official ▁inaug uration ▁ceremony , ▁which ▁ ▁took ▁place ▁in ▁presence ▁of ▁Prime ▁minister ▁Re cep ▁T ay y ip ▁Er do ğ an ▁and ▁Minister ▁of ▁Energy ▁and ▁Natural ▁Resources ▁Hil mi ▁Gü ler ▁in ▁March ▁ 2 0 0 9 . ▁ ▁The ▁E ti ▁S oda ▁Inc . ▁is ▁joint ly ▁owned ▁in ▁majority ▁by ▁C iner ▁Hold ing ▁with ▁ 7 4 % ▁and ▁by ▁E ti ▁Mad en ▁with ▁ 2 6 %. ▁ ▁Plant ▁and ▁production ▁Tr ona ▁ore ▁is ▁extracted ▁by ▁solution ▁min ing ▁method . ▁Hot ▁water ▁is ▁inject ed ▁into ▁the ▁tr ona ▁ore ▁depos it ▁under ground ▁through ▁bore ▁holes ▁d ril led , ▁which ▁dissol ves ▁tr ona ▁ore . ▁The ▁tr ona ▁solution ▁is ▁p ump ed ▁up ▁and ▁is ▁processed ▁to ▁s oda ▁products ▁as ▁s oda ▁ash ▁( s od ium ▁carbon ate , ▁Na 2 CO 3 ) ▁and ▁b aking ▁s oda ▁( s od ium ▁b ic ar bon ate , ▁Na H CO 3 ). ▁The ▁s oda ▁ash ▁is ▁mainly ▁used ▁in ▁the ▁glass ▁production . ▁Product s ▁of ▁E ti ▁S oda ▁are ▁export ed ▁all ▁over ▁the ▁world , ▁especially ▁to ▁European ▁countries . ▁From ▁ 2 0 0 9 ▁to ▁ 2 0 1 3 , ▁the ▁value ▁of ▁s oda ▁ash