Trevali presents an update of the Bathurst Mining Camp

. assaying 8% Zn, 6.4% Pb and 44 g / t Ag;
21.3 meters grading 6.5% Zn, 5.2% Pb & 65 g / t Ag; and
17.2 meters grading 8.7% Zn, 7.2% Pb and 199 g / t Ag

Trevali Mining Corporation (TSX: TV) provides an update on exploration and development activities. the development of the Bathurst Mining Camp. Figure 1: Trevali Projects in the Bathurst Mining Camp, New Brunswick
(Note: Red stars are 100% owned by Trevali, Blue Stars are advanced properties as an option).
Figure 1 is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/e913ad39-47c2-4ac0-9d92-c3dda86bb128.

"The combination of ongoing exploration success and strategic acquisitions in the Bathurst Mining Camp has provided a solid pipeline to support our Caribou plant's life plan," he said. Dr. Mark Cruise. . "Trevali has consolidated a dominant position in the field to optimize milling operations in the region for the benefit of all stakeholders."

Trevali currently holds four deposits and has the option acquire two advanced deposits in the Bathurst Mining Camp. ") (Figure 1) Anchored by the Caribou plant and related infrastructure, the Company aims to perform advanced geological and engineering studies to facilitate long-term production in the future. The Company's Strategy (Figure 2)

Figure 2: Trevali's "Life of the Factory" Strategy for the BMC
(Note: Provides forward-looking information, see "Getting Started" Caution Regarding Forward-Looking Statements ".)
Figure 2 is available at http://www.globenewswire.com/NewsRoom/AddmentNg/d1099f31-41e3-46df-b753-6d22fd337295.

The company continues to explore the Caribou deposit in operation in addition to conducting a definition of drilling and advanced studies. engineering and mining planning on the Restigouche and Murray Brook deposits.

MINE CARIBOU EXPLORATION
In 2017, the Company added approximately 4 million tonnes of inferred mineral resources to the Caribou deposit. As a follow-up, a 12,000-meter exploration and definition drilling program began in mid-June 2018 and targeted extensions downstream of East Limbe, Hinge Zone and the newly discovered CX Zone. .

Figure 3: 2018 Caribou Exploration Targets
Figure 3 is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/7ff93633-5c78-4fe0-b9c3-04a868042d03.[19659012] <img src = "http://globenewswire.ca/news-release/2018/07/05/1533665/0/en/photos/549792/0/549792.png?lastModified=07%2F05%2F2018%2007% 3A55% 3A24 & size = 2 "alt =" Figure 3 [19659006] RESTIGOUCHE DEPOSITION
During the second quarter of 2018, the Company completed approximately 5,000 meters of diamond drilling to increase confidence in historical data, facilitate Geological reinterpretation and facilitating detailed mining planning The drilling confirmed the presence of thick and stacked zones of high zinc-lead-silver mineralization (Table 1 and Figures 4 and 5).

Figure 4: View plan of the Restigouche deposit (projected on the surface) showing 2018 location of drill holes.
Figure 4 is available at 39, address http://www.globenewswire.com/NewsRoom/AttachmentNg/2888c25f-e360-4d3a-9692-8663889aaf43.

Drilling Hole	Depth (meters) [19659017] Length of heart Interval (meters)			True thickness (meters)	Zn (%)	Pb (%)	Cu (%)	Ag (g / g)	In (g / t)
	From
To
	RST18-020		143.36	189.75	46.39	44.53	4.17 [19659027] 3.40 [19659028] 0.16	31.19	0.31
included		143.36	159.00	15.64	15.03	8.01	6.43	0.27	44.19	19659028] 0.53
RST18-021		158.58	179.00 [19659027] 20.42	20.3	6.37	5.03	0.29	41.05	1.09
	inclusive	158.58	167.85	9.27	9.22 [19659027] 8.12 [1965902] 8] 6.71	0.32	60.33	1.75
		181.10	196.00	14.90	14.81	5.85	3.34	0.33	35.10	0.60
RST18-022		160.00	185.70	25,	25.62	5.28	4.36	0.33	52.32	1.74
	incl	164.25	173,85	9,60	9.57	6.80	5.41	0.33	49.60	0.80
RST18- 023		154.00	190.00	36.00	29.34	5.87	4.60	0.36	53.54 19659028] 1.19
	inclusive	154.00	173.76	19.76	16.11	6.39	5.58	0, 36	55.48	1.03
		180.00	189.1 0	9.10	7.4	6.55	4.44	0.44	73.09	2.11
RST18-024 [19659027] 137.30	142.95	5.65	3.7	5.37	4.07	0.24	65.54	0.94
RST18-025		132.70	139.80	7.10	4.88	5.35	3.01	0,	37.71	0.47
RST18-026		126.55	182.60	56.05	45.9	6.05 19659028] 4.33	0.28	90.53	1.11
	included	126.55	138.75	12.20	9, 99	7.59	5.83	0.37	272.05	3.28
	incl	173.10	181.50	8,	6.89	9.20	7.29	0.32	51.30	0.83
RST18-027		154.42	19659028] 173.63	19.21	16.9	6.81	5.23	0.24	58.46	1.10 [19659038] RST18-028		137.30	184.00	46.70 [19659028] 21,31	6,53	5,20	0.29	65.64	0.94
RST18-029		133.32	135.75	2.43	2.02	5.83	6.57	0.48	214.12	1.85
RST18- 030		97.80	108.10	10.30	9.88	6.67	4.66	0.34	80.03	0.71
RST18-031		96.85	102.62	5.77	5.42	6.67	2.92	0.32	50.82	0.34
RST18-032 19659027] 93.30	102.48	9.18	8.87	8.15	1.51	0.42	16.80	0.08
RST18-033		102.06	111.76	9.70	9.46	5.53	4.25	0,	66.45	0.94
		118.29	122.13	3.84	3.75	8.58	0.20 19659028] 0.36 [19659027] 8,10	0.08
RST18-034		111.22	136.70	25.48	21.2	7.09	5.54	0.31	47.03	0.73 [19659028] RST18-035		101.72	108.45	6.73	6, 69	3.54	1.87	0.21	38.62	0.67
Including	112.27	115.80	3.53	3.51	4.45	2.57	0.22	44.33	0.16
RST18-036		77, 07	81,31	4,24	4,12	8.29	7.15	0.32	106.94	1.38 19659063] 116.78	121.78	5.00	4.73	3.36	2.01 [19659027] 0.17	24.14	0.29
		130.11	135.96	5.85	5.54	3.41	2.07	0.18	26, 93	0.10
	RST18 -037		79.31	97,	17.99	17.19	8.72	7.20	0 .30	198.90	1.76
Including			85.10	5.79	5.53	9.70	8.27	0.31	156.06	2, 09
included		88.00	97.30	9.30	6.91	9.72	7.85	0.36	264.04	1.87
RST18-038 [19659029] 182.55	215.00	32.45	29.48	5.58	4.69	0.21	32.80	0.49
	included	182.55	196.74	14.19	12.88	8.26	6.69	0.29	43.51 [19659028] 0.66
RST18-039		175.45	200.20	24.75	23.12	8.83	6.95	0.33	99.82	1.22
		236.49	247.88	11.39	10.67	4.00	2, 8 1	0.18	26.16 [19659027] 0.15
RST18-040	No significant interception
RST18-041		235.40 [19659027] 236.90	1.50	1.20	6.58	4.15	0.28	70.32	0.37	Table 1 : Restigouche 2018 Definition Drill Program Analysis Results

Figure 5: Restigouche section (looking southwest) showing 2018 drill holes and some highlights.
Figure 5 is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/3ed82477-8f33-4645-ba7a-8daca80d5792. 19659396] Figure 5 “/>

MURRAY BROOK PROJECT
Trevali has the option of acquiring up to 75% interest in the Murray Brook project by providing $ 7.5 million in funding to Puma Exploration Inc. ("Puma") to allow Puma to close its acquisition of the project (see Trevali press release of March 2, 2018 for more details). The Murray Brook deposit is located 10 kilometers west of the Caribou plant and 10 kilometers east of the Restigouche deposit along the Caribou mineralized horizon (Figures 1 and 2). 6)

averaged 5.24% zinc, 1.80% lead, 0.46% copper, 68.9 g / t silver and 0.65 g / t of silver. gold, containing about 610 million pounds of zinc, 209 million pounds of lead and 11.7 million ounces of silver. 2016.

The core of the mineral resource is in the West Zone (dominant zinc-lead) which is about 200 meters wide, extending from the surface about 300 meters vertically; the actual thickness of the mass of massive sulphides varies from 75 meters to 100 meters. The eastern zone (dominant copper-gold) has a width of about 100 meters and also extends from the surface to about 300 vertical meters. On February 20, 2017, Puma filed on SEDAR a technical report entitled "Amended and Restated Technical and Update Report and Mineral Resource Estimate on the Murray Brook Project".

In collaboration with Puma, the company plans to advance the Murray Brook deposit a timely production decision. A comprehensive resource assessment was conducted to further define resource areas and confirm the accuracy of the previous model. The advanced projects team led by Trevali has begun geotechnical and metallurgical drilling and additional exploration, drilling, trenching and geophysical work will be carried out on priority targets near the mining lease (Figure 4). 6)

Program
Figure 6 is available at http://www.globenewswire.com/NewsRoom/AttachmentNg/efad6b75-8e1c-4494-93c4-408fa497c14f.[19659012e

The land package held by Trevali / Puma in the northern part of the Bathurst Mining Camp covers about 14 kilometers of strike along the productive Caribou ore horizon and is considered very promising and generally under-explored. This area of ​​the BMC (Figure 6) did not benefit from the same level of investment as the southern part of the camp

RESULTS OF PRODUCTION AND RESULTS IN THE SECOND QUARTER
The preliminary results of the second quarter production will be released close on Wednesday, July 18, 2018 and the related financial results will be released after the closing of the Toronto Stock Exchange on August 8, 2018. A fundraising call for Q22018 will be held on Thursday, August 9, 2018 at 10:30 am, Eastern Time, with

Qualified Person and Quality Control / Quality Assurance
EurGeol Mark D. Cruise, President and CEO of Trevali, and Daniel Marinov, Geologist, Vice-President President at Trevali Exploration, are Qualified Persons under NI 43-101 oversaw the preparation of scientific and technical information on which this press release is based. Mr. Marinov is responsible for all aspects of the work, including quality control programs and quality assurance. Mr. Cruise is not independent of the Company because he is an officer, a director and a shareholder. Mr. Marinov is not independent of the Company since he is an officer and a shareholder. Site staff rigorously collect and monitor samples that are then sealed and shipped to the Bureau Veritas Laboratories (Bureau Veritas) plant in Timmins, Ontario, for crushing and splitting, and then the pulp samples are shipped to Vancouver, British Columbia. Analyzes of zinc, lead, copper, gold and silver were obtained by dissolving four Aqua-Regia acids followed by measurements by inductively coupled plasma optical emission spectrometry. (ICP-OES). Values ​​of zinc, lead and copper greater than 10% are determined by the volumetric method. Analytical precision and accuracy are monitored by the analysis of reagent blanks, reference material and replicate samples. Quality control is also ensured through the use of international and internal standards. The blind certified reference material is inserted at regular intervals into the sample sequence by Trevali staff to independently assess the analytical accuracy. The Bureau Veritas quality system complies with the requirements of international standards ISO 9001: 2000 and ISO 17025: 1999. Finally, blind representative duplicate samples are regularly sent to an ISO-compliant third-party laboratory for quality control. external.

CORPORATION
Trevali is a zinc-based base metals company with four mines: Peru's wholly-owned Santander Mine and the Caribou Mine, wholly-owned in the Bathurst Mining Camp. in northern New Brunswick. in Namibia and its 90% owned Perkoa mine in Burkina Faso

The shares of Trevali are listed on the TSX (symbol TV), the OTCQX (symbol TREVF), on the Lima Stock Exchange (symbol TV) and at the Frankfurt Stock Exchange. (symbol 4TI). For more information on Trevali, readers are invited to consult the Company's website (www.trevali.com) and the Canadian regulatory filings on SEDAR at www.sedar.com

In the name of Board of Directors of
TREVALI MINING CORPORATION
"Mark D. Cruise" (signed)
Mark D. Cruise, President

Contact Information:
Steve Stakiw, Vice President – Relations with Investors and Corporate Communications
Email: sstakiw @ trevali .com
Telephone: (604) 488-1661 / Direct: (604) 638-5623

Warning Regarding Forward-Looking Statements
This News Release contains "forward-looking information" within the meaning of the Canadian Securities Law and "forward-looking statements" within the meaning of section 27A of the United States Securities Act of 1933, as amended, Section 21E of the United States Exchange Act of 1934, as amended the US Private Securities Litigation Reform Act of 1995, or in the US Securities and Exchange Commission press releases, anything that can be changed from time to time. Forward-looking statements express, as of the date of this press release, the plans, estimates, forecasts, projections, expectations or beliefs of the Company with respect to future events or results and the Company has not made any representations about the future plans or estimates. intention and assumes no obligation to update such statements containing the forward-looking information. These forward-looking statements and information include, but are not limited to, the following: the Company's long-term strategy based on the continued use potential of the Caribou Mill Complex to process mineral feeds from other projects of the society; and deposits in the BMC beyond the life of the Caribou underground mine, the timing and amount of estimated future production, the estimate of mineral resources and mineral reserves, the costs and timing of development, potential efficiencies, costs and expenses future operating results, metal production and production rates, anticipated future exploration results, expected exploration costs, planned exploration programs and value additions, and metal price forecasts

. events and are necessarily based on a number of assumptions and estimates which, while considered reasonable by the Company, are inherently subject to commercial and economic uncertainties and contingencies, competitive, political and social issues. If assumptions are incorrect, actual results, performance or achievements may differ materially from future results, performance or achievements expressed or implied by such statements. Assumptions were made regarding, among other things, current and future business strategies and the environment in which the Company will operate in the future, including commodity prices, anticipated costs. and the ability to achieve goals.

to known and unknown risks, uncertainties and other important factors that could cause the actual results, level of activity, performance or achievements of the Company to be materially different from those expressed or implied by these forward-looking statements. joint venture operations; fluctuations in the spot and forward markets for silver, zinc, base metals and certain other commodities (such as natural gas, fuel oil and electricity); fluctuations in the currency markets; risks related to the technological and operational nature of the Company's activities; changes in national and local government, legislation, taxation, controls or regulations, and political or economic developments in Canada, the United States, Peru, Namibia, Burkina Faso, or in others countries where the Company could operate; risks and hazards associated with mining exploration, development and mining activities (including environmental hazards, industrial accidents, unusual or unexpected geological or structural formations, pressures, collapses and floods); risks related to the solvency or financial position of suppliers, refiners and other parties with whom the Company does business; inadequate insurance or the inability to obtain insurance to cover these risks and dangers; employee relations; the relationships and demands of local communities and indigenous peoples; availability and increase of costs associated with mining inputs and labor; the speculative nature of the exploration and development of mineral resources, including the risks associated with obtaining the necessary licenses and permits and the presence of laws and regulations that may impose restrictions on 39, mining; decreasing amounts or grades of mineral resources or mineral reserves as properties are extracted; global financial conditions; business opportunities that may be presented or pursued by the Company; the Company's ability to successfully complete and integrate acquisitions and mitigate other business combination risks; difficulties or difficulties in maintaining the title of the Company and the maintenance of its property; the actual results of ongoing exploration activities, the conclusions of economic evaluations and changes to project parameters to deal with unforeseen economic factors or other factors; Increased competition in the mining industry for properties, equipment, qualified personnel and their costs, as well as for the factors described in the section entitled "Risk Factors" of the most recently filed Annual Information Form. the society. Investors are cautioned against attributing undue certainty or confidence in forward-looking statements. Although the Company has attempted to identify important factors that could cause significant differences in actual results, other factors may not lead to the expected, estimated results, described or planned. The Company does not intend, and assumes no obligation, to update these forward-looking statements or information to reflect changes in assumptions or changes of circumstances or any other event. affecting such statements or information, other than as required by applicable law. 19659007] We inform US investors that even though the terms "measured resources", "indicated resources" and "inferred resources" are recognized and required by Canadian regulations, the United States Securities and Exchange Commission does not recognize these terms. US investors are advised not to assume that some or all of the items in these categories will be converted into reserves.

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