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AGI.TO ·

Alamos Gold Announces Completion of Construction and First Gold Production at La Yaqui Phase I

Mine Development & Operations

ALAMOS GOLD INC.

Brookfield Place, 181 Bay Street, Suite 3910, P.O. Box #823

Toronto, Ontario M5J 2T3

Telephone: (416) 368-9932 or 1 (866) 788-8801

All amounts are in United States dollars, unless otherwise stated.

F O R I M M E D I A T E R E L E A S E

W E B S I T E : w w w . a l a m o s g o l d . c o m T R A D I N G S Y M B O L : T S X : A G I N Y S E : A G I

Alamos Gold Announces Completion of Construction and First Gold Production

at La Yaqui Phase I

Toronto, Ontario (September 7, 2017) – Alamos Gold Inc. (TSX:AGI; NYSE:AGI) (“Alamos”

or the “Company”) is pleased to announce that construction of the first phase of the La Yaqui

mine is substantially complete, on budget, and ahead of schedule. Gold production has

commenced and is expected to reduce the cost profile from Mulatos district operations going

forward.

The mine produced a total of 410 ounces of gold from the initial pour. Gold production rates

are increasing with the stacking of the first lift of ore on the leach pad completed and placed

under irrigation in August.

“The first phase of the La Yaqui Mine was brought into production in eight months, a

significant achievement and indicative of how quickly we can develop these types of deposits.

Alamos will apply this same approach as we look to grow and develop La Yaqui Grande and

other targets within the Mulatos district,” said John A. McCluskey, President and Chief

Executive Officer.

La Yaqui is a standalone heap leach operation located approximately seven kilometres

(straight line) from the Mulatos Mine in Sonora, Mexico. The mine is expected to produce

approximately 25,000 ounces of gold per year at substantially lower costs than the main

Mulatos pit complex given its higher grades and recoveries.

La Yaqui is expected to evolve into a larger operation over the coming years with the

development of the La Yaqui Grande project. La Yaqui Grande was a new discovery in 2015

and through ongoing exploration success, the project has grown to include mineral reserves of

521,000 ounces of gold (11.5 million tonnes grading 1.40 grams per tonne), approximately six

times the size of La Yaqui Phase I.

About Alamos

Alamos is a Canadian-based intermediate gold producer with diversified production from three

operating mines in North America. This includes the Young-Davidson mine in northern

Ontario, Canada and the Mulatos and El Chanate mines in Sonora State, Mexico. Additionally,

the Company has a significant portfolio of development stage projects in Canada, Mexico,

Turkey, and the United States. Alamos employs more than 1,300 people and is committed to

the highest standards of sustainable development. The Company’s shares are traded on the

TSX and NYSE under the symbol “AGI”.

T R A D I N G S Y M B O L : T S X : A G I N Y S E : A G I

2 | ALAMOS GOLD INC

FOR FURTHER INFORMATION, PLEASE CONTACT:

Scott K. Parsons

Vice President, Investor Relations

(416) 368-9932 x 5439

Cautionary Note

The TSX and NYSE have not reviewed and do not accept responsibility for the adequacy or accuracy of this

release. No stock exchange, securities commission or other regulatory authority has approved or disapproved the

information contained herein.

Cautionary Note

This News Release includes certain “forward-looking statements”. All statements other than statements of historical

fact included in this release, including without limitation statements regarding expectations of future permitting

timelines, outcomes of economic studies, development and/or production timelines or other future plans and

objectives of Alamos, are forward-looking statements that involve various risks and uncertainties and are based on

forecasts of future operational or financial results, estimates of amounts not yet determinable and assumptions of

management.

Any statements that express or involve discussions with respect to predictions, expectations, beliefs, plans,

projections, objectives, assumptions or future events or performance (often, but not always, using words or phrases

such as "expects" or "does not expect", "is expected", "anticipates" or "does not anticipate", "plans", "estimates" or

"intends", or stating that certain actions, events or results "may", "could", "would", "might" or "will" be taken, occur

or be achieved) are not statements of historical fact and may be "forward -looking statements." Fo rward-looking

statements are subject to a variety of risks and uncertainties that could cause actual events or results to differ from

those reflected in the forward-looking statements.

There can be no assurance that forward -looking statements will prove to be accurate and actual results and future

events could differ materially from those anticipated in such statements. Important factors that could cause actual

results to differ materially from Alamos’ expectations include, among others, ongoing permitting requirements, risks

related to our Turkish projects and operations, the actual results of current exploration activities, conclusions of

economic evaluations and changes in project parameters as plans continue to be refined as well as future prices of

gold, as well as those factors discussed in the section entitled “Risk Factors” in Alamos’ Annual Information Form

and other disclosures of “Ri sk Factors” by Alamos, available on SEDAR and EDGAR. Although Alamos has

attempted to identify important factors that could cause actual results to differ materially, there may be other factors

that cause results not to be as anticipated, estimated or intended. There can be no assurance that such statements

will prove to be accurate as actual results and future events co uld differ materially from those anticipated in such

statements. Accordingly, readers should not place undue reliance on forward-looking statements.

Technical Information

Chris Bostwick, FAusIMM, Alamos Gold's Vice President, Technical Services, has revie wed and approved the

scientific and technical information contained in this news release. Chris Bostwick is a Qualified Person within the

meaning of Canadian Securities Administrator's National Instrument 43 -101 ("NI 43 -101"). For additional

information ab out the La Yaqui Grande mineral reserve, see Alamos’ news release dated February 23, 2017,

“Alamos Gold Reports Mineral Reserves and Resources for the Year -Ended 2016”, available on Alamos’ website,

SEDAR and EDGAR.