▁it ▁res umed . ▁ 1 9 5 5 ▁a ▁new ▁facility , ▁with ▁sorting ▁plant ▁and ▁concentr ator ▁was ▁finished ▁and ▁the ▁annual ▁production ▁reached ▁ 6 0 0 , 0 0 0 ▁tons . ▁During ▁the ▁latter ▁part ▁of ▁the ▁ 1 9 7 0 s , ▁output ▁decre ased ▁but ▁still ▁amount ed ▁to ▁about ▁one ▁million ▁t onnes ▁of ▁cru de ▁ore , ▁of ▁which ▁the ▁bulk ▁was ▁export ed . ▁ ▁Share hold ers ▁of ▁D ann em ora ▁mines ▁had ▁decl ined ▁since ▁the ▁late ▁ 1 9 th ▁century ▁through ▁clos ures ▁and ▁mer gers . ▁In ▁ 1 9 3 7 ▁the ▁four ▁remaining ▁own ers ▁( F ager sta ▁Bru k , ▁I gg es und s ▁Bru k , ▁H args ▁Bru k ▁and ▁St ora ▁Ko pp ar berg s ▁Berg lag ) ▁formed ▁AB ▁D ann em ora ▁M ines . ▁In ▁ 1 9 7 4 ▁St ora ▁Ko pp ar berg ▁became ▁the ▁sole ▁owner ▁of ▁the ▁D ann em ora ▁mine . ▁Only ▁four ▁years ▁later , ▁during ▁the ▁crisis ▁that ▁hit ▁the ▁Swedish ▁steel ▁industry ▁in ▁the ▁late ▁ 1 9 7 0 s , ▁however , ▁the ▁state - owned ▁SS AB ▁was ▁forced ▁to ▁take ▁over ▁the ▁mine . ▁ ▁Current ▁Status ▁ ▁The ▁current ▁owner ▁is ▁D ann em ora ▁Min eral ▁AB , ▁which ▁was ▁listed ▁May ▁ 2 5 , ▁ 2 0 0 7 . ▁ ▁The ▁initial ▁stock ▁pla cement