A deepening global shortage of aluminium and an improving outlook for Russian equities should make tycoon Oleg Deripaska’s En+ company attractive to investors seeking exposure to emerging markets free of foreign exchange risks, its chief told Reuters. Chief Executive Maxim Sokov said En+ is billing itself as a Russian aluminium and hydropower conglomerate similar to Norway’s Norsk Hydro but with the benefit of lower-cost Siberian power, a boon for highly energy-intensive aluminium smelting.