Silver Standard Completes Sale of San Agustin Project

December 30, 2013 News Release 13–22

SILVER STANDARD COMPLETES SALE OF SAN AGUSTIN PROJECT

VANCOUVER, B.C. -- Silver Standard Resources Inc. (NASDAQ: SSRI) (TSX: SSO) (“Silver Standard”) announces today that it has completed the sale of its San Agustin project in Durango, Mexico (“San Agustin”) to Argonaut Gold Inc. (TSX: AR) (“Argonaut”). Argonaut is a U.S.-based company listed on the Toronto Stock Exchange. This transaction was previously announced in Silver Standard’s press release dated November 5, 2013.

SOURCE: Silver Standard Resources Inc.

For further information contact:

W. John DeCooman, Jr.

Vice President, Business Development and Strategy Silver Standard Resources Inc.

Vancouver, B.C.

N.A. toll-free: +1 (888) 338-0046 All others: +1 (604) 689-3846 E-Mail: [email protected]

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