Apex completed its Limited Assurance level evaluation of the Report in accordance with the Apex’s standard procedures and guidelines for external Assurance of Sustainability Reports and International Standard on Assurance Engagements (ISAE) Revised, Assurance Engagements Other than Audits or Reviews of Historical Financial Information (effective for assurance reports dated on or after Dec. 15, 2015), issued by the International Auditing and Assurance Standards Board and against the principles of the Global Reporting Initiative (GRI) Reporting Framework as defined in the GRI Standards Sustainability Reporting Guidelines.