On December 3, 2014, Barrick completed the sale of 50% of the Jabal Sayid mine to Saudi Arabian Mining Company (Ma’aden). The Jabal Sayid joint venture is operated by Ma’aden Barrick Copper Company ("MBCC"), the joint venture entity, on behalf of Barrick and Ma’aden. Accordingly, all information related to Jabal Sayid on this website, or in any documents accessible from this website, from December 3, 2014 onwards is based on data provided by MBCC, the joint venture entity.

1. “All-in sustaining costs” per pound is a non-GAAP financial performance measure. “All-in sustaining costs” per pound begins with “C1 cash costs” per pound and adds further costs which reflect the additional costs of operating a mine, primarily sustaining capital expenditures, general & administrative costs and royalties. Barrick believes that the use of “all-in sustaining costs” per pound will assist investors, analysts, and other stakeholders in understanding the costs associated with producing copper, understanding the economics of copper mining, assessing our operating performance, and also our ability to generate free cash flow from current operations and to generate free cash flow on an overall company basis. "All-in sustaining costs" per pound is intended to provide additional information only, does not have any standardized meaning under IFRS, and may not be comparable to similar measures of performance presented by other companies. This measure should not be considered in isolation or as a substitute for measures of performance prepared in accordance with IFRS. Further details on these non-GAAP measures are provided in the MD&A accompanying Barrick's financial statements filed from time to time on SEDAR at www.sedar.com and on EDGAR at www.sec.gov.
2. Estimated in accordance with National Instrument 43-101 as required by Canadian securities regulatory authorities. Estimates are as of December 31, 2016, unless otherwise noted. Complete mineral reserve and mineral resource data for all mines and projects referenced on this website, including tonnes, grades, and ounces, can be found on pages 88-93 of Barrick’s Fourth Quarter and Year-End 2016 Report.