Silver Standard Acquires 19.9% Interest IN Abraplata

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April 25, 2017 News Release 17-12

SILVER STANDARD ACQUIRES 19.9% INTEREST IN ABRAPLATA

VANCOUVER, B.C. - Silver Standard Resources Inc. (NASDAQ: SSRI) (TSX: SSO) ( “Silver

Standard”) is pleased to announce that Hu ayra Minerals Corp. (“HMC”) completed its reverse

take-over (“RTO”) of AbraPlata Resource Corp. (TSX.V:ABRA) (“AbraPlata”) on April 24, 2017.

As a result of the RTO, Silver Standard’s Class A Shares in HMC were exchanged on a one-for-

one basis for common shares in AbraP lata resulting in Silver Standard directly holding

11,294,609 common shares of AbraPlata, representing 19.9% of the total issued and outstanding

common shares of AbraPlata as of April 24, 2017. The common shares of AbraPlata are listed on

the TSX Venture Exchange.

An early warning report will be filed with the relevant Canadian secu rities regulatory

authorities. Copies of such reports may be obtained from SEDAR at www.sedar.com or by

contacting Silver Standard.

About Silver Standard

Silver Standard is a Canadian -based precious metals producer with three wholly- owned and

operated mines, including the Marigold gold mine in Nevada, U.S., the Seabee Gold Operation

in Saskatchewan, Canada and the Pirquitas silver mine in Jujuy Province, Argentina. We also

have two feasibility stage projects and an extensive portfolio of exploration properties

throughout North and South America. We are committed to delivering safe production through

relentless emphasis on Operational Excellence. We are also focused on growing production and

Mineral Reserves through the exploration and acquisition of assets for accretive growth, while

maintaining financial strength.

SOURCE: Silver Standard Resources Inc.

For further information contact:

W. John DeCooman, Jr.

Vice President, Business Development and Strategy

Silver Standard Resources Inc.

Vancouver, BC

N.A. toll-free: +1 (888) 338-0046

All others: +1 (604) 689-3846

E-Mail: [email protected]

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www.silverstandard.com.