Hogan & Hartson is the latest firm to benefit from the stream of unsolicited bid activity with the firm’s London arm picking up a mandate to advise on this month’s bid for Canada’s LionOre Mining.

The US firm is advising Russia’s Norilsk Nickel on its $4.8bn (£2.42bn) unsolicited bid, which tops a previous agreed bid made by Switzerland’s Xstrata in March.