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TKO.TO ·

Taseko Reports Second Quarter 2019 Financial and Operational Results

Production Results Financials

TASEKO REPORTS SECOND QUARTER 2019

FINANCIAL AND OPERATIONAL RESULTS

This release should be read with the Company ’s Financial Statements and Management Discussion &

Analysis ("MD&A"), available at www.tasekomines.com and filed on www.sedar.com. Except where

otherwise noted, all currency am ounts are stated in Canadian dollars. Taseko ’s 75% owned Gibraltar

Mine is located north of the City of Williams Lake in south -central British Columbia. Production

volumes stated in this release are on a 100% basis unless otherwise indicated.

August 7, 2019, Vancouver, BC – Taseko Mines Limited (TSX: TKO; NYSE American: TGB) ("Taseko"

or the "Company") reports earnings from mining operations before depletion and amortization* of $18.6

million, Adjusted EBITDA* of $14.7 million and a net loss of $11.0 mi llion, or $0.04 per share, in the

second quarter of 2019.

Stuart McDonald, President of Taseko stated, “Gibraltar produced 34.7 million pounds of copper in the

second quarter, a 39% increase from the previous quarter, as copper head grades increased as expected. We

also benefited from improved recoveries and higher mill throughput. Year-to-date copper production is on

budget and we expect to meet our original 2019 copper production guidance of 130 million pounds (+/ -

5%). Quarterly fluctuations have always been a characteristic of Gibraltar, but on an annual basis the

variability is low.”

“Site operating costs, net of by- product credits* were US$1.71 per pound, 10% lower than the previous

quarter as a result of the increased copper production in the quarter . Our cash balance increased to $42

million during the period and we have a number of initiatives underway to further improve this position as

we move towards potential development of our Florence Copper Project next year,” added Mr. McDonald.

Russell Hallbauer, CEO commented, “The emerging story for Taseko is the Florence Copper Project and

we’ve achieved some significant milestones recently. In April, we plated the first batch of high quality

99.9% copper cathode, just four months after leaching operations commenced. In June, copper grades in

the leach solutions reached commercial levels, well in advance of when we expected this to occur. We also

filed the Aquifer Protection Permit amendment application in June with the Arizona Department of

Environmental Quality and just this week, the Underground Injection Control Permit amendment with the

US EPA. In addition to the continued technical successes, financing discussions are progressing with a

number of potential lenders and joint venture partners.”

Mr. Hallbauer concluded, “We continue the engineering work on our recently acquired Yellowhead Copper

Project. The environmental assessment process is underway and discussions are ongoing with local first

nations and Provincial and Federal government regulators.”

*Non-GAAP performance measure. See end of news release.

Second Quarter Review

 Second quarter earnings from mining operations before de pletion and amortization* were $18.6

million, and Adjusted EBITDA was $14.7 million;

 Cash flow from operations was $11.1 million, a 54% increase over the first quarter of 2019;

 Copper production in the second quarter was 34.7 million pounds and copper sale s were 32.3

million pounds (100% basis), both increasing 39% over the first quarter of 2019;

 Molybdenum production was 653 thousand pounds; molybdenum prices remained steady and

averaged US$12.18 per pound during the quarter;

 Site operating costs, net of by-product credits* were US$1.71 per pound produced, a 10% decrease

from the first quarter of 2019;

 Net loss was $11.0 million ($0.04 per share) and adjusted net loss* was $17.5 million ($0.07 per

share);

 Depletion and amortization was $30.1 million in the second quarter, an increase of $10.0 million

(or $0.04/share) from the prior quarter due to increased depreciation of capitalized strip associated

with ore processed from the Granite pit;

 During the quarter, the Company entered into equipment refinancings at attractive rates on existing

mine equipment at Gibraltar and received net proceeds of $22.2 million, and made its semi-annual

bond interest payment of $14.3 million;

 In April 2019, the Company announced first copper production from the test facility at the Florence

Copper project. In June 2019, the Company announced its submission of the permit amendment

application for the Aquifer Protection Permit to the Arizona Department of Environmental Quality

and that it achieved commercial grade leach solution; and

 The Company’s cash balance at June 30, 2019 was $42.0 million.

*Non-GAAP performance measure. See end of news release.

HIGHLIGHTS

Financial Data Three months ended June 30, Six months ended June 30,

(Cdn$ in thousands, except for per share amounts) 2019 2018 Change 2019 2018 Change

Revenues 86,521 94,273 (7,752) 156,795 158,452 (1,657)

Earnings from mining operations before depletion

and amortization* 18,646 36,267 (17,621) 34,375 49,811 (15,436)

Earnings (loss) from mining operations (11,492) 18,312 (29,804) (15,947) 17,076 (33,023)

Net loss (11,012) (4,671) (6,341) (18,943) (23,152) 4,209

Per share - basic (“EPS”) (0.04) (0.02) (0.02) (0.08) (0.10) 0.02

Adjusted net income (loss)*

(17,471) 2,337 (19,808) (31,890) (8,662) (23,228)

Per share - basic (“adjusted EPS”)* (0.07) 0.01 (0.08) (0.13) (0.04) (0.09)

Adjusted EBITDA* 14,660 32,251 (17,591) 24,905 39,788 (14,883)

Cash flows provided by operations 11,073 20,349 (9,276) 18,264 31,905 (13,641)

Operating Data (Gibraltar - 100% basis) Three months ended June 30, Six months ended June 30,

2019 2018 Change

2019 2018 Change

Tons mined (millions) 26.6 27.4 (0.8) 50.0 54.1 (4.1)

Tons milled (millions) 7.7 7.5 0.2 14.5 15.0 (0.5)

Production (million pounds Cu) 34.7 33.5 1.2 59.5 56.4 3.1

Sales (million pounds Cu) 32.3 32.2 0.1 55.6 55.0 0.6

*Non-GAAP performance measure. See end of news release.

REVIEW OF OPERATIONS

Gibraltar Mine (75% Owned)

Operating data (100% basis) Q2 2019 Q1 2019 Q4 2018 Q3 2018 Q2 2018

Tons mined (millions) 26.6 23.3 28.4 29.0 27.4

Tons milled (millions) 7.7 6.8 7.1 8.0 7.5

Strip ratio 2.3 3.2 5.1 1.7 1.9

Site operating cost per ton milled (CAD$)* $11.51 $10.88 $9.16 $10.60 $10.31

Copper concentrate

Head grade (%) 0.256 0.216 0.222 0.314 0.263

Copper recovery (%) 87.7 84.6 81.3 85.9 85.3

Production (million pounds Cu) 34.7 24.9 25.8 43.0 33.5

Sales (million pounds Cu) 32.3 23.3 42.7 28.8 32.2

Inventory (million pounds Cu) 5.5 3.1 1.6 18.5 4.2

Molybdenum concentrate

Production (thousand pounds Mo) 653 738 727 690 506

Sales (thousand pounds Mo) 708 770 738 709 424

Per unit data (US$ per pound produced)*

Site operating costs* $1.92 $2.23 $1.92 $1.50 $1.78

By-product credits* (0.21) (0.32) (0.30) (0.16) (0.12)

Site operating costs, net of by-product credits* $1.71 $1.91 $1.62 $1.34 $1.66

Off-property costs 0.30 0.30 0.49 0.24 0.32

Total operating costs (C1)* $2.01 $2.21 $2.11 $1.58 $1.98

OPERATIONS ANALYSIS

Second Quarter Operating Results

Copper production in the second quarter was 34.7 million pounds. Copper grade for the quarter averaged

0.256%, which was in line with management expectations, the mine plan, and the life of mine av erage

grade. Copper recovery in the mill was 87.7% during the quarter. Production was also positively affected

by higher mill throughput during the quarter.

A total of 26.6 million tons were mined during the period, an increase of 3.3 million tons over the previous

quarter as shovel fleet availability returned to planned levels. The strip ratio for the second quarter was 2.3

to 1.

*Non-GAAP performance measure. See end of news release.

OPERATIONS ANALYSIS - CONTINUED

Total site spending (includ ing capitalized stripping costs) was 6% higher than the previous quarter. The

increase was a result of higher mine operations costs from an increase in tons mined and timing of

maintenance related costs. A smaller proportion of mining costs are being capitalized in the second quarter

because of advancement in the Granite pit. Capitalized stripping costs totaled $2.0 million (75% basis)

compared to $8.0 million in the prior quarter. These factors contributed to the increase in site operating

cost per ton milled*, which was $11.51 for the period.

Molybdenum production was 653 thousand pounds in the second quarter. Molybdenum prices held steady

and averaged US$12.18 per pound over the quarter. By -product credits per pound of copper produced*

decreased to US$0.21 in the second quarter from US$0.32 in the previous quarter as a result of the increase

in copper production.

Off-property costs per pound produced* were US$0.30 for the second quarter of 2019. Off -property costs

consist of concentrate treatme nt, refining and transportation costs, and these costs are in line with recent

quarters relative to copper sold.

GIBRALTAR OUTLOOK

Gibraltar is expected to produce approximately 130 million pounds (+/ -5%) on a 100% basis in 2019,

comparable to the produ ction level achieved in 2018. While there will be quarterly fluctuations in both

copper and molybdenum production, the Company does not anticipate those fluctuations to be as significant

for the remainder of the year. The fundamentals for copper remain str ong and most industry analysts are

projecting a growing deficit and higher copper prices in the coming years.

REVIEW OF PROJECTS

Taseko’s strategy has been to grow the Company by leveraging cash flow from the Gibraltar Mine to

assemble and develop a pipe line of projects. We continue to believe this will generate long -term returns

for shareholders. Our development projects are located in British Columbia and Arizona and represent a

diverse range of metals, including gold, copper, molybdenum and niobium. O ur current focus is on the

development of the Florence Copper Project.

Florence Copper

Wellfield operations at the Production Test Facility (“PTF”) commenced in the fourth quarter of 2018. On

April 12, 2019, the Company announced that the SX/EW plant wa s producing first copper and the first

harvest from the PTF resulted in 3,700 pounds of copper cathode which was assayed at higher than 99.9%

copper. In June, the Company announced that after approximately six months of operating the PTF, the

leach solution reached commercial grade levels well in advance of expectations.

The main focus of the PTF phase is to demonstrate to regulators and key stakeholders that hydraulic control

of underground leach solutions can be maintained, and provide valuable data to validate the Company’s

leach model as well as optimize well design and performance and hydraulic control parameters. Successful

operation of the in -situ leaching process will allow permits to be amended for the full scale commercial

operation, which is expected to produce 85 million pounds of copper cathode annually for 20 years.

REVIEW OF PROJECTS - CONTINUED

Two key permit amendments are required to commence construction of the commercial scale facility at

Florence Copper. These are the Aquifer Protection Permit (“APP”) amendment application to the Arizona

Department of Environmental Quality (“ADEQ”) and the permit amendment application for the

Underground Injection Control (“UIC”) Permit to the U.S. Environmental Protection Agency (“EPA”). In

June 201 9, the Company submitted the APP amendment application to the ADEQ. The UIC permit

amendment application was submitted to the EPA in the first week of August. It is anticipated that

permitting of the commercial scale operation could be completed in the first half of 2020.

The estimated capital cost of the commercial scale operation is US$204 million based on the Company’s

2017 43-101 technical report and the Company has continued to advance various project financing options

from debt providers, royalty companies, and potential joint venture partners. Management is targeting to

have the project finance funding committed in advance of both the APP and UIC permit amendments being

issued by the ADEQ and EPA, respectively.

Total expenditures at the Florence Project in the second quarter of 2019 were $3.5 million which includes

PTF operation and other project development costs.

Yellowhead Copper

On February 15, 2019, the Company acquired all of the outstanding common shares of Yellowhead Mining

Inc. (“Yellowhead”) that it did not already own, in exchange for 17.3 million Taseko common shares.

Yellowhead holds a 100% interest in a copper -gold-silver development project located in south -central

British Columbia. The project feasibility study dated July 3 1, 2014, proposed a 70,000 tonne per day

concentrator with total pre -production capital costs of approximately $1 billion and an average operating

cost of US$1.46 per pound of copper. Using US$3.00 per pound of copper, a Canadian/US dollar exchange

rate of 0.80, an 8% discount rate and other assumptions from the 2014 feasibility study results in a pre-tax

net present value of $1.1 billion.

Since the acquisition, Taseko has restarted the environmental review process for the Yellowhead Copper

Project, and the Company’s technical team has commenced an engineering redesign of the project to

enhance economics with the objective of issuing a new 43-101 technical report by the end of 2019.

Aley Niobium

Environmental monitoring and product marketing initiatives on the project continue. A drill program was

completed in 2018 to collect samples for further metallurgical testing. A pilot plant scale program

commenced in the second quarter on the currently bench scale proven niobium flotation and converter

processes. The pilot plant will also provide final product samples for marketing purposes. Aley project

expenditures were $0.1 million in the first half of 2019.

REVIEW OF PROJECTS - CONTINUED

New Prosperity

In June 2019, the Supreme Court of Canada dismissed the Tsilhqot’in First Nation application to appeal an

earlier judgment by the BC Supreme Court and by the British Columbia Court of Appeal. These court

rulings confirm that the Company can proceed with the site investigation work that was authorized by t he

Province of British Columbia in July 2017. The approved work program is investigative in nature and will

gather hydrological and other information required for the British Columbia Mines Act Permitting process.

Note: Gibraltar is a contractual, unincorporated joint venture between Taseko Mines Limited (75% interest)

and Cariboo Copper Corp. (25% interest). All production and sales figures are reported on a 100% basis,

unless otherwise noted.

Taseko will host a conference call on Thursday, August 8, 2 019 at 11:00 a.m. Eastern Time (8:00 a.m. Pacific) to

discuss these results. The conference call may be accessed by dialing (888) 390-0546 in Canada and the United States,

or (416) 764 -8688 internationally. Alternatively, a live and archived webcast will also be available at

tasekomines.com. The conference call will be archived for later playback until August 22, 2019 and can be accessed

by dialing (888) 390-0541 in Canada and the United States, or (416) 764-8677 internationally and using the passcode

190432.

For further information on Taseko, please see the Company's website at www.tasekomines.com or contact:

Brian Bergot, Vice President, Investor Relations – 778-373-4554, toll free 1-800-667-2114

Russell Hallbauer

CEO

No regulatory authority has approved or disapproved of the information in this news release.

NON-GAAP PERFORMANCE MEASURES

This document includes certain non -GAAP performance measures that do not have a standardized meaning prescribed by IFRS.

These measures may differ from those used by, and may not be comparable to such measures as reported by, other issuers. The

Company believes that these measures are commonly used by certain investors, in conjunction with conventional IFRS measures,

to enhance their understanding of the Company’s performance. These measures have been derived from the Company’s financial

statements and applied on a consistent basis. The following tables below provide a reconciliation of these non-GAAP measures to

the most directly comparable IFRS measure.

Total operating costs and site operating costs, net of by-product credits

Total costs of sales include all co sts absorbed into inventory, as well as transportation costs and insurance recoverable. Site

operating costs is calculated by removing net changes in inventory, depletion and amortization, insurance recoverable, and

transportation costs from cost of sales. Site operating costs, net of by-product credits is calculated by removing by-product credits

from the site operating costs. Site operating costs, net of by -product credits per pound are calculated by dividing the aggregate of

the applicable costs by coppe r pounds produced. Total operating costs per pound is the sum of site operating costs, net of by -

product credits and off-property costs divided by the copper pounds produced. By -product credits are calculated based on actual

sales of molybdenum (net of tre atment costs) and silver during the period divided by the total pounds of copper produced during

the period. These measures are calculated on a consistent basis for the periods presented.

Three months ended

June 30,

Six months ended

June 30,

(Cdn$ in thousands, unless otherwise indicated) – 75%

basis 2019 2018 2019 2018

Cost of sales 98,013 75,961 172,742 141,376

Less:

Depletion and amortization (30,138) (17,955) (50,322) (32,735)

Net change in inventories of finished goods 3,989 (813) 8,035 154

Net change in inventories of ore stockpiles (540) 5,007 (413) 1,111

Transportation costs (4,630) (4,529) (7,918) (7,358)

Insurance recoverable - - - 4,000

Site operating costs 66,694 57,671 122,124 106,548

Less by-product credits:

Molybdenum, net of treatment costs (7,243) (3,830) (15,062) (8,839)

Silver, excluding amortization of deferred revenue (93) (159) (279) (251)

Site operating costs, net of by-product credits 59,358 53,682 106,783 97,458

Total copper produced (thousand pounds) 26,020 25,120 44,661 42,265

Total costs per pound produced 2.28 2.14 2.39 2.31

Average exchange rate for the period (CAD/USD) 1.34 1.29 1.33 1.28

Site operating costs, net of by-product credits (US$ per

pound) 1.71 1.66 1.79 1.80

Site operating costs, net of by-product credits 59,358 53,682 106,783 97,458

Add off-property costs:

Treatment and refining costs 5,839 5,938 10,105 9,892

Transportation costs 4,630 4,529 7,918 7,358

Total operating costs 69,827 64,149 124,806 114,708

Total operating costs (C1) (US$ per pound) 2.01 1.98 2.10 2.12