Early Warning Report Filing

Trevali Mining Corporation (“Trevali” or the “Company”) (TSX:TV; BVL:TV; OTCQX:TREVF; Frankfurt: 4TI) announces that it has filed an early warning report in respect of its holding in Prism Resources Inc. (“Prism”) (TSXV: PRS). Trevali acquired 5,750,000 common shares of Prism on July 21, 2016, representing approximately 11.1% of the issued and outstanding common shares of Prism (then and now), at a deemed price of C$0.10 per share (for total deemed consideration of C$575,000) in consideration for the sale of the past-producing Huampar silver- gold mine located in west-central Peru. There has been no change in such holdings since such initial acquisition.

Trevali does not have any present intention to acquire ownership of, or control over, additional securities of Prism. It is the intention of Trevali to evaluate its investment in Prism on a continuing basis and such holdings may be increased or decreased in the future.

A copy of the early warning report filed by Trevali in connection with the acquisition described above is available on SEDAR under Prism’s profile at www.sedar.com, and it can also be obtained directly from Trevali.

On Behalf of the Board of Directors of

TREVALI MINING CORPORATION

“Mark D. Cruise” (signed)

Mark D. Cruise, President

Contact Information:

Steve Stakiw, Vice President – Investor Relations and Corporate Communications

Email: sstakiw@trevali.com

Phone: (604) 488-1661 / Direct: (604) 638-5623

Click here to connect with Trevali Mining Corporation (TSX:TV) for an Investor Presentation.

Source: www.stockwatch.com