Dominion Diamond Corporation (TSX: DDC, NYSE: DDC) (the “Company”) today announced that the nominees listed in the management information circular for the 2016 Annual Meeting of Shareholders were elected as directors of the Company at its Annual Meeting held on July 20th, 2016. The results of the votes are as follows:

Nominee   Votes For   % of Votes For   Votes Withheld   % of Votes Withheld Brendan Bell 67,083,534 99.54% 306,633 0.46% Graham G. Clow 66,070,841 98.04% 1,319,326 1.96% Robert A. Gannicott 59,714,436 88.61% 7,675,731 11.39% James K. Gowans 62,342,936 92.51% 5,047,231 7.49% David S. Smith 65,464,397 97.14% 1,925,770 2.86% Chuck Strahl 64,021,741 95.00% 3,368,426 5.00% Josef Vejvoda 67,050,408 99.50% 339,759 0.50% Thomas A. Andruskevich 66,969,117 99.38% 421,050 0.62%

About Dominion Diamond CorporationDominion Diamond Corporation is the world’s third largest producer of rough diamonds by value. Both of its production assets are located in the low political risk environment of the Northwest Territories in Canada where the Company also has its head office. The Company is well capitalized and has a strong balance sheet.

The Company operates the Ekati Diamond Mine and also owns 40% of the Diavik Diamond Mine. Between the two mining operations, diamonds are currently produced from a number of separate kimberlite pipes providing a diversity of diamond supply as well as reduced operational risk. It supplies premium rough diamond assortments to the global market through its sorting and selling operations in Canada, Belgium and India.

For more information, please visit www.ddcorp.ca

Dominion Diamond CorporationMs. Kelley Stamm, (416) 205-4380Manager, Investor Relationskstamm@ddcorp.ca