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Group Structure

The Group is controlled by the Global Infrastructure Fund of the investment business Kohlberg Kravis Roberts & Co. L.P. (KKR), which is quoted on the New York Stock Exchange, and which holds a majority controlling interest in the Group, together with certain co-investors of KKR. The KKR Infrastructure Fund is controlled and managed by KKR Infrastructure Limited.

There are a number of UK registered intermediate holding companies above South Staffordshire Plc in the Group structure, headed by Hydriades IV Limited, the ultimate holding company registered in the UK. There are also intermediate holding companies above Hydriades IV Limited which are registered in Jersey but which are resident in the UK for tax purposes. In line with other KKR investments in Europe, the parent of the Jersey resident companies is a company registered in Luxembourg (Selena Luxco S.à.r.l.), which is the company in which the long-term infrastructure funds of KKR and their co-investors invest. The KKR funds investing in this company are controlled and managed by KKR Infrastructure Limited.

Mitsubishi Corporation, a global integrated trading company, holds a 25 percent stake in the Group.

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