ロールス・ロイス・ホールディングス
Rolls-Royce Holdings and Daimler AG launched a takeover for Tognum in March 2011. The two companies announced on 24 June 2011 that their joint €3.4 billion tender offer had been successful, with 94% of Tognum shareholders accepting. Once the acquisition was complete, Tognum is run as a 50-50 joint venture, with Rolls-Royce merging its Bergen Marine diesel engines unit into the operation.