Trevali Reports Q2-2016 Santander Mine Production With Record Zinc Output and Mill Throughput, and Boosts 2016 Zinc Production Guidance

VANCOUVER, BRITISH COLUMBIA--(Marketwired - July 11, 2016) - Trevali Mining Corporation ("Trevali" or the "Company") (TSX:TV)(LMA:TV)(OTCQX:TREVF)(FRANKFURT:4TI) reports preliminary Santander Mine production results for its second quarter ("Q2") ending June 30, 2016 of approximately 15.2 million payable pounds zinc (a new quarterly record), 5.6 million payable pounds of lead and 222,121 payable ounces of silver (see Table 1).

Q2-2016 Santander recoveries averaged 89% for zinc, 87% for lead and 73% for silver. Mill throughput for the quarter was 219,086 tonnes, surpassing the site's prior record of 209,188 tonnes set in Q1-2016.

Table 1: Santander Mine Q2-2016 preliminary production statistics

	Q1-2016	Q2-2016
Tonnes Mined	175,579	177,415
Tonnes Milled	209,188	219,086
Average Head Grades:
Zinc	3.93%	4.16%
Lead	1.66%	1.39%
Silver (ounces/ton)	1.32	1.32
Average Recoveries (%):
Zinc	89%	89%
Lead	88%	87%
Silver	76%	73%
Concentrate Produced DMT (dry metric tonnes):
Zinc	14,840	16,601
Lead	5,469	4,865
Concentrate Grades:
Zinc	49%	49%
Lead	56%	55%
Ag (ounces/ton)	38.70	43.66
Payable Production:
Zinc (pounds)	13,662,766	15,157,944
Lead (pounds)	6,436,047	5,575,792
Silver (ounces)	221,324	222,121

Given the mine's record zinc production during the first half of 2016, the Company has increased its 2016 annual Santander Zinc Production Guidance to 57-60 million pounds of payable zinc in concentrate grading approximately 50 percent Zn (up from 52-55 million payable pounds). Lead and silver guidance for 2016 remains unchanged at 22-25 million pounds of payable lead in concentrate grading approximately 56-58 percent Pb and 800,000-1,000,000 ounces of payable silver. Cash costs for 2016, which were lowered following strong Q1-2016 operating results, remain an estimated US$35-US$38 per tonne milled and site based business initiatives are ongoing (please see Cautionary Note on Forward Looking Statements at the end of this document).