The Board has appointed four board committees to assist the Board in discharge of its duties and to oversee particular aspects of the Group’s affairs, including Audit Committee, Remuneration Committee, Nomination Committee and Sustainability Committee.  Each committee has its defined scope of duties and terms of reference, which are available below. The committee members are empowered to make decisions on matters within the terms of reference of each committee. To further reinforce independence, the committees have been structured to include a majority of Independent Non-executive Directors.