indicators of Sector Supplement Electric Utilities 4.10 Processes for evaluating the highest governance body’s performance on sustainability matters 4.11 Implementation of the precautionary principle 4.12 External initiatives that the organization endorses 4.13 Significant memberships in industry and business associations 4.14 List of stakeholder groups engaged by the organization 4.15 Basis for identification and selection of stakeholders to engage 4.16 Approaches to stakeholder engagement (type/frequency) 4.17 Response to key concerns raised by stakeholders 5.