Taseko Announces Financial and Operational Results for the Third Quarter 2019

Press Release

November 6, 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 $12.3 million and adjusted EBITDA* of $7.9 million for the three months ended September 30, 2019.

The third quarter copper production at Gibraltar of 33 million pounds was on plan, with grades, mill throughput and recoveries all in line with management expectations. We expect to achieve the original 2019 guidance of 130 million pounds (+/-5%) of copper, and 2020 should be a similar production year. An updated mineral reserve estimate for Gibraltar has been completed (details included below), and a new NI 43-101 technical report was filed on SEDAR today.

Russell Hallbauer, CEO and Director of Taseko, commented, “The Gibraltar Mine continues to be a cornerstone asset for our Company. We’re pursuing and evaluating a number of improvements, with a focus on opportunities to increase mill throughput and recoveries, as well as mining related enhancements. Mining and milling technology is constantly evolving which provides opportunities for a steady-state mine, like Gibraltar, to improve.”

“We continued to make great strides forward at our Florence Copper Project this quarter and copper production at the project test facility continues to increase. We’re gaining valuable operating experience which will benefit us with the commercial facility development and we continue to maintain compliance with all environmental guidelines. Florence Copper has the potential to transform Taseko’s production profile in the coming years, and dramatically reduce our consolidated unit costs. We recently announced our intention to list Taseko on the London Stock Exchange (“LSE”) Main Market, and as part of the listing process we engaged an independent engineering firm, Roscoe Postle Associates Inc. (“RPA”), to prepare a Competent Persons Report (“CPR”) on the Florence Copper Project. The CPR confirms a project with a production capacity of 85 million pounds of copper over a 20 year mine life, with an after-tax NPV (at 8%) of US$670 million and an IRR of 40%. RPA’s findings represent a strong independent third party endorsement for the project and the previous technical work we have completed,” concluded Stuart McDonald, President of Taseko.

Third Quarter Review

• Third quarter earnings from mining operations before depletion and amortization* were $12.3 million, and Adjusted EBITDA was $7.9 million;
• Cash flow from operations was $15.2 million, a 37% increase over the second quarter of 2019;
• The Company’s cash balance at September 30, 2019 was $42.0 million, unchanged from the prior quarter;
• Copper production in the third quarter was steady at 33.0 million pounds and copper sales were 33.5 million pounds (100% basis);
• Molybdenum production was 620 thousand pounds in line with plan; molybdenum prices averaged US$11.83 per pound during the quarter;
• Site operating costs, net of by-product credits* were US$1.72 per pound produced, comparable to the second quarter of 2019 of US$1.71 per pound;
• Net loss was $24.5 million ($0.10 per share) and adjusted net loss* was $20.6 million ($0.08 per share);
• The Florence Copper project continues to advance its production test facility operation with the focus turning to testing different wellfield operating strategies, including adjusting pumping rates, solution strength, flow direction and the use of packers in recovery and injection wells to isolate different zones of the orebody. During the quarter, Florence delivered its first shipment of LME grade A copper cathode; and
• Finished goods inventory at September 30, 2019 at Gibraltar (100% basis) includes 5 million pounds of copper and 129 thousand pounds of molybdenum with a sales value for Taseko’s share of approximately $12.0 million.

Competent Person Reports for LSE Listing

As a requirement of the LSE listing process, the Company engaged Roscoe Postle Associates Inc. (“RPA”) to prepare an independent Competent Persons Report (“CPR”) for the Gibraltar Mine and the Florence Copper Project. The Gibraltar Mine CPR confirmed the Company’s mineral reserve estimate in its 43-101 Technical Report dated November 6, 2019, and contains no other significant findings.

The Florence Copper Project CPR contains a number of estimates which are different than the estimates in the 2017 Florence Technical Report dated January 16, 2017 (the “2017 Technical Report”), and the key differences are summarized as follows:

• The mineral reserve estimate in the CPR is the same as the 2017 Technical Report, however, RPA lowered the estimate of total copper recovery to 65% (compared to 70% in the 2017 Technical Report), based on a more conservative interpretation of previous metallurgical test work.
• The CPR assumes accelerated wellfield development to maintain annual copper production capacity of 85 million pounds over a mine life of 20 year
• RPA reviewed the initial start-up results of the Florence Production Test Facility in mid-2019 but opined the results were too preliminary in nature to make firm judgements at that time. Accordingly, the CPR does not reflect any updates to reflect these test facility operations.
• Capital and operating cost estimates were escalated to June 2019 US dollar basis using a combination of cost indexes and updated reagent, power and labour costs. Initial capital costs in the CPR increased to US$227 million from US$204 million in the 2017 Technical Report. Cash requirements for reclamation bonding reduced to US$9 million from US$ 22 million in the 2017 Technical Report. Operating costs increased to US$1.13/lb of copper produced, from US$ 1.10/lb in the 2017 Technical Report.
• An economic analysis was completed by RPA using the mine plan included in the 2017 Technical Report and their updated capital and operating cost estimates. RPA also incorporated current federal US tax law changes resulting from the ‘Tax Cuts and Jobs Act’

(TCJA) signed into law on December 22, 2017. Using a copper price of US$3.10/lb and an 8% discount rate results in an after-tax NPV of US$667 million (versus US$680 million in the 2017 Technical Report). The Project has an after-tax Internal Rate of Return (IRR) of 40.2% and payback period of 2.3 years from start of commercial operations (versus 37% and 2.5 years in the 2017 Technical Report).

• The CPR includes a resource estimate prepared in accordance with NI 43-101 utilizing CIM definitions. The resource estimate includes 296 million tons of Indicated resources grading

0.35% Cu, that were reclassified from the Measured resource category in the 2017 Technical Report, based on RPA’s assessment that there was not sufficient density information in their opinion to support categorization as Measured resources. The total measured and indicated resource estimate is the same as in the 2017 Technical Report.

The updates to the resource estimate and project economics contained in the CPR are not considered by the Company to constitute a material change either in its assessment of the Florence Copper Project or in relation to the Company as a whole. Accordingly, the 2017 Technical Report remains current and an updated 43-101 technical report on the Florence Copper Project will not be filed.

The CPR reports for Gibraltar Mine and Florence Copper Project will be included in the LSE Prospectus, and will be filed on SEDAR at the time of the LSE listing, which is expected to be completed before the end of 2019.

Gibraltar Mineral Reserve Estimate

The Company has filed an updated mineral reserve estimate and NI 43-101 Technical Report entitled “Technical Report on the Mineral Reserve Update at the Gibraltar Mine” dated November 6, 2019 on SEDAR.com. Gibraltar’s updated proven and probable reserves as of December 31, 2018 are as follows:

		Summary of Mineral Reserves – December 31, 2018
			Taseko Mines – Gibraltar Mine
Ore Type	Category		Tonnage	Cu Grade		Mo Grade
			(Mst)	(%)		(%)
Sulphide: 0.15% Cu Cut-off Grade
	Proven		469	0.26		0.008
	Probable		121	0.23		0.008
	Ore Stockpiles		3	0.19		0.008
	Total		594	0.25		0.008
Oxide: 0.10% ASCu Cut-off Grade
	Proven		1	0.16
	Probable		16	0.15
	Total		17	0.15

Notes:

1. CIM (2014) definitions were followed for Mineral Reserves.
2. Mineral Reserves are presented on a 100% basis.

3. Mineral Reserves are estimated using a copper price of US$2.75/lb, a molybdenum price of US$8.00/lb, and an exchange rate of US$1.00: C$1.25.

4. Mineral Reserves for sulphide ore are estimated at a cut-off grade of 0.15% Cu with a maximum 50% ASCu content constraint. Mineral Reserves for oxide ore are estimated at a cut-off grade of 0.10% ASCu.

5. Mineral Reserves are estimated as mined and delivered to the processing facilities.
6. Numbers may not add due to rounding.

The mineral reserves stated above are contained within the measured and indicated mineral resources below:

Summary of Mineral Resources – December 31, 2018

Taseko Mines – Gibraltar Mine

Category	Tonnage	Cu Grade	Mo Grade
	(Mst)	(%)	(%)
Measured	806	0.25	0.008
Indicated	303	0.23	0.007
Total Measured + Indicated	1,109	0.25	0.007
Inferred	59	0.21	0.004

Notes:

1. CIM (2014) definitions were followed for Mineral Resources.

2. Mineral Resources are presented on a 100% basis.
3. Sulphide Mineral Resources are estimated at a cut-off grade of 0.15% Cu.
4. Oxide Mineral Resources are estimated at a cut-off grade of 0.10% ASCu.

5. Mineral Resources are estimated using a long-term copper price of US$3.25/lb, a molybdenum price of US$12.00/lb, and an exchange rate of US$1.00: C$1.25.

6. Tonnage factors are 12 ft3/st for in situ material and 15 ft3/st for fill.
7. Mineral Resources are inclusive of Mineral Reserves.
8. Mineral Resources that are not Mineral Reserves do not have demonstrated economic viability.
9. Numbers may not add due to rounding.

The resource and reserve estimation was completed by Taseko staff under the supervision of Richard Weymark, P.Eng., MBA, Chief Engineer and a Qualified Person under National Instrument 43-101. Mr. Weymark has reviewed this release.

HIGHLIGHTS

			Three months ended			Nine months ended
		Financial Data	September 30,			September 30,
		(Cdn$ in thousands, except for per share amounts)	2019	2018	Change	2019	2018	Change
		Revenues	82,436	74,297	8,139	239,231	232,749	6,482
		Earnings from mining operations before depletion
		and amortization*	12,317	33,742	(21,425)	46,692	83,553	(36,861)
		Earnings (loss) from mining operations	(15,737)	13,568	(29,305)	(31,684)	30,644	(62,328)
		Net income (loss)	(24,508)	7,098	(31,606)	(43,451)	(16,054)	(27,397)
		Per share – basic (“EPS”)	(0.10)	0.03	(0.13)	(0.18)	(0.07)	(0.09)
		Adjusted net income (loss)*	(20,561)	1,464	(22,025)	(52,451)	(7,198)	(45,253)
		Per share – basic (“adjusted EPS”)*	(0.08)	0.01	(0.09)	(0.22)	(0.03)	(0.19)
		Adjusted EBITDA*	7,906	31,940	(24,844)	32,811	71,728	(38,917)
		Cash flows provided by operations	15,150	18,053	(2,903)	33,414	49,958	(16,544)
			Three months ended			Nine months ended
		Operating Data (Gibraltar – 100% basis)	September 30,			September 30,
			2019	2018	Change	2019	2018	Change
		Tons mined (millions)	24.7	29.0	(4.3)	74.7	83.1	(8.4)
		Tons milled (millions)	7.5	8.0	(0.5)	22.1	22.9	(0.8)
		Production (million pounds Cu)	33.0	43.0	(10.0)	92.5	99.4	(6.9)
		Sales (million pounds Cu)	33.5	30.2	3.3	89.1	83.8	5.3

REVIEW OF OPERATIONS

Gibraltar Mine (75% Owned)

Operating data (100% basis)	Q3 2019	Q2 2019	Q1 2019	Q4 2018	Q3 2018
Tons mined (millions)	24.7	26.6	23.3	28.4	29.0
Tons milled (millions)	7.5	7.7	6.8	7.1	8.0
Strip ratio	3.0	2.3	3.2	5.1	1.7
Site operating cost per ton milled (CAD$)*	$10.83	$11.51	$10.88	$9.16	$10.60
Copper concentrate

Head grade (%)

Copper recovery (%)

Production (million pounds Cu)

Sales (million pounds Cu)

Inventory (million pounds Cu)

Molybdenum concentrate

0.249	0.256	0.216	0.222	0.314
87.7	87.7	84.6	81.3	85.9
33.0	34.7	24.9	25.8	43.0
33.5	32.3	23.3	42.7	28.8
5.0	5.5	3.1	1.6	18.5

	Production (thousand pounds Mo)	620	653	738	727	690
	Sales (thousand pounds Mo)	518	708	770	738	709
	Per unit data (US$ per pound produced)*
	Site operating costs*	$1.88	$1.92	$2.23	$1.92	$1.50
	By-product credits*	(0.16)	(0.21)	(0.32)	(0.30)	(0.16)
	Site operating costs, net of by-product credits*	$1.72	$1.71	$1.91	$1.62	$1.34
	Off-property costs	0.33	0.30	0.30	0.49	0.24
	Total operating costs (C1)*	$2.05	$2.01	$2.21	$2.11	$1.58

OPERATIONS ANALYSIS

Third Quarter Operating Results

Copper production in the third quarter was 33.0 million pounds. Copper grade for the quarter averaged 0.249%, which was in line with management expectations, the mine plan, and the life of mine average grade. Copper recovery in the mill was 87.7% during the quarter which was consistent with Q2 and improved over the prior year. Production was also affected by slightly lower mill throughput during the quarter.

A total of 24.7 million tons were mined during the period, a decrease of 1.9 million tons over the previous quarter and the ore stockpile was drawn down by 1.4 million tons. The strip ratio for the third quarter was 3.0 to 1.

Capitalized stripping costs totaled $8.6 million (75% basis) compared to $2.0 million in the prior quarter due to advancement into the Pollyanna pit and associated waste stripping. These factors contributed to the decrease in site operating cost per ton milled*, which was $10.83 for the quarter, 6% lower than the prior quarter.

OPERATIONS ANALYSIS – CONTINUED

Total site spending (including capitalized stripping costs) was generally in line with the previous quarter.

Molybdenum production was 620 thousand pounds in the third quarter. Molybdenum prices held steady and averaged US$11.83 per pound over the quarter. By-product credits per pound of copper produced* decreased to US$0.16 in the third quarter from US$0.21 in the previous quarter as a result of the lower molybdenum sales.

Off-property costs per pound produced* were US$0.33 for the third quarter of 2019. Off-property costs consist of concentrate treatment, 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 production level achieved in 2018.

The fundamentals for copper remain strong and most industry analysts are projecting a growing deficit and higher copper prices in the coming years. Expansion of overseas copper smelting capacity and tighter supply conditions has recently resulted in notably lower concentrate treatment and refining charges (“TCRC). The Company recently completed a spot copper concentrate contract at an attractive rate signifiantly below the 2019 benchmark.

On November 6, 2019, the Company will publish an updated 43-101 Technical report on the Gibraltar Mine. Based on this updated technical report, sufficient Mineral Reserves exist to support an approximate 19-year production plan out to 2038 with annual average copper production of 130 million pounds, and the Mineral Resource potential exists to further extend the mine life.

PROJECT UPDATE

Taseko’s strategy has been to grow the Company by leveraging cash flow from the Gibraltar Mine to assemble and develop a pipeline 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. Our current focus is on the development of the Florence Copper Project.

Florence Copper

The Production Test Facility (“PTF”) continued to operate as planned in the quarter. On October 21, 2019, the Company provided an operational update highlighting that steady state operation has been achieved, with focus turning to testing different wellfield operating strategies, including adjusting pumping rates, solution strength, flow direction, and the use of packers in recovery and injection wells to isolate different zones of the orebody. Sweep efficiencies in the wellfield continue to outperform management expectations. The Florence Copper technical team is using physical and operating control mechanisms to adjust solution chemistry and flow rates and is successfully increasing copper concentration in solution. The main recovery well is now producing copper in solution at an annualized rate of approximately 600,000 pounds per year, and the expectation is for steady improvement as the well matures.

PROJECT UPDATE – CONTINUED

The main focus of the PTF phase is to demonstrate to regulators and key stakeholders that hydraulic contrl 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 up to 85 million pounds of annual copper cathode capacity for 19 years.

Two permits are required to commence construction of the commercial scale wellfield at Florence Copper. These are the Aquifer Protection Permit (“APP”) from the Arizona Department of Environmental Quality (“ADEQ”) and the Underground Injection Control (“UIC”) Permit from the U.S. Environmental Protection Agency (“EPA”). In June 2019, the Company submitted the APP application to the ADEQ. The UIC permit application was submitted to the EPA in the first week of August. Operating permits for the commercial scale wellfield are expected to be received in the summer of 2020. The Company is planning to continue to operate the PTF until the end of 2020.

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 for the nine months ending September 30, 2019 were $10.8 million including the 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 31, 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 in due course.

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 for the nine months ended September 30, 2019 were $0.5 million.

INTENTION TO LIST ON THE LONDON STOCK EXCHANGE

On October 22, 2019, the Company announced its intention to seek a listing of the Company’s common shares on the London Stock Exchange (“LSE”) Main Market. Subject to the required regulatory approvals from the Financial Conduct Authority and the LSE, including publication of a Prospectus. Admission to the LSE is expected to occur before the end of 2019. The Company is not intending to raise capital in conjunction with the LSE admission.

The Company will host a telephone conference call and live webcast on Thursday, November 7, 2019 at 11:00 a.m. Eastern Time (8:00 a.m. Pacific Time) to discuss these results. After opening remarks by management, there will be a question and answer session open to analysts and investors. The conference call may be accessed by dialing

• 390-0546 within North America, or (416) 764-8688 for international callers. The conference call will be archived for later playback until November 21, 2019 and can be accessed by dialing (888) 390-0541 within North America or, (416) 764-8677 internationally and using the passcode 842594#.

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

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

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