Mr. Evan Young reports

PRIMERO TO RELEASE FIRST QUARTER 2017 FINANCIAL RESULTS ON MAY 3, 2017 AND HOLD ANNUAL GENERAL AND SPECIAL MEETING OF SHAREHOLDERS ON JUNE 13, 2017

Primero Mining Corp. plans to release its first quarter 2017 operating and financial results on Wednesday, May 3, 2017, and host its annual general and special meeting of shareholders on Tuesday, June 13, 2017.

Primero has filed its 2016 management's discussion and analysis of financial condition, results of operations, and 2016 audited financial statements on SEDAR along with its Form 40-F on EDGAR. Shareholders may request, free of charge, a hard copy of the 2016 annual report by sending an e-mail to info@primeromining.com.

The company has elected to use the notice-and-access provisions under National Instrument 54-101 and National Instrument 51-102 to reduce printing and mailing costs associated with the dissemination of annual information to shareholders. Notice-and-access permits annual financial statements, management's discussion and analysis, and meeting circulars to be posted on a publicly available website, instead of being mailed to shareholders. Shareholders may access these materials under the company's profile on SEDAR or EDGAR, or on the company's website.

First quarter 2017 results conference call details

Primero is scheduled to release first quarter 2017 financial results before the market opens on Wednesday, May 3, 2017. A conference call will also be held on the same day at 10 a.m. ET to discuss first quarter results.

Participants may join the call by dialling North America toll-free 1-888-789-9572 or 416-695-7806 for calls outside Canada and the United States and entering the participant passcode 1070474 followed by the pound key.

A live and archived webcast of the conference call will also be available at the company's website under the news and events section.

A recorded playback of the first quarter 2017 results call will be available until Aug. 19, 2017, by dialling 1-800-408-3053 or 905-694-9451 and entering the call-back passcode 3580389 followed by the pound key.

Annual general and special meeting of shareholders details

The AGSM will begin on Tuesday, June 13, 2017, at 10:30 a.m. ET and will be held at the offices of Stikeman Elliott LLP located at 5300 Commerce Court West, 199 Bay St., Toronto, Canada. For those unable to attend in person please see below for alternative methods of participation.

To listen to the AGSM, please dial North America toll-free 1-888-789-9572 or 416-695-7806 for calls outside Canada and the United States and enter the participant passcode 3151822 followed by the pound key.

A live and archived webcast of the conference call will also be available at the company's website under the news and events section.

A recorded playback of the AGSM conference call will be available until Sept. 29, 2017, by dialling 1-800-408-3053 or 905-694-9451 and entering the call-back passcode 6557336 followed by the pound key.

About Primero Mining Corp.

Primero Mining is a Canadian-based precious metals producer that owns 100 per cent of the San Dimas gold-silver mine and the Cerro del Gallo gold-silver-copper development project in Mexico, and 100 per cent of the Black Fox mine and adjoining properties in the township of Black River-Matheson near Timmins, Ont., Canada.