▁Colomb ian ▁Emer ald s ▁ ▁D ut y ▁Free ▁Uruguay ▁ ▁D ut y ▁Free ▁Sh op ▁Argentina ▁ ▁In ▁addition , ▁D uf ry ▁is ▁also ▁used ▁as ▁a ▁brand ▁name ▁for ▁some ▁general ▁travel ▁ret ail ▁sh ops . ▁ ▁History ▁ ▁The ▁company ▁own s ▁stores ▁at ▁air ports , ▁railway ▁stations , ▁and ▁ports , ▁and ▁oper ates ▁con cess ions ▁on board ▁air lines ▁and ▁cru ise ▁ships . ▁ ▁Mil est ones ▁and ▁History ▁▁ 2 0 1 9 : ▁D uf ry ▁acqu ires ▁a ▁ 6 0 % ▁st ake ▁of ▁Reg St a er ▁V n uk ovo . ▁▁▁ 2 0 1 8 : ▁D uf ry ' s ▁subs idi ary ▁Hudson ▁Ltd . ▁listed ▁on ▁the ▁New ▁York ▁Stock ▁Exchange ▁( N Y SE ) ▁with ▁its ▁first ▁trad ing ▁day ▁on ▁February ▁ 1 , ▁ 2 0 1 8 ▁▁ 2 0 1 6 : ▁Ren ew al ▁of ▁existing ▁con cess ion ▁contract s . ▁Company ▁is ▁included ▁in ▁the ▁Swiss ▁Le ader ▁Index , ▁compiled ▁of ▁the ▁ 3 0 ▁largest ▁Swiss ▁Corpor ations ▁listed ▁on ▁the ▁S IX ▁Swiss ▁Exchange . ▁▁ 2 0 1 5 : ▁Ac quisition ▁of ▁World ▁D ut y ▁Free ▁▁ 2 0 1 4 : ▁Ac quisition ▁of ▁The ▁Nu ance ▁Group ▁▁ 2 0 1 2 : ▁Ac quisition ▁of ▁ 5 1 % ▁of ▁joint ▁vent ure ▁with ▁Reg St a er ▁Group ▁in ▁Russia . ▁Ac