Document:

EX-10.17

 EXHIBIT 10.17 
 HUTTIG BUILDING PRODUCTS, INC. 
 EVA EXECUTIVE INCENTIVE PLAN

 For the Year 2012 
 GENERAL 
 The awards to participants in the EVA Incentive Compensation Plan, As Amended
January 1, 2004 (the “EVA Plan”) of a Huttig Building Products, Inc. (the “Company”) shall be pursuant to the terms of the EVA Plan, except as set forth below. The amendments to the EVA Plan with respect to the
2012 awards have been approved by the Board of Directors (the “Board”) of the Company, upon recommendation of the Management Organization & Compensation Committee of the Board. 

PAYMENT OF 2012 INCENTIVE AWARDS 
  

	•	 	 The 2012 EVA bonus awards shall be paid in full to the participants and no portion of such awards shall be banked or subject to forfeiture provided
that the participant continues to be employed by the Company at the date of payment(s); 

  

	•	 	 The 2012 EVA bonus awards shall be paid on such date or dates in 2013 as determined by the President and Chief Executive Officer at his discretion; and

  

	•	 	 that the payment of any 2012 EVA award is subject to the participant’s continued employment with the Company through the date of payment;
provided, that all 2012 EVA awards shall become immediately payable upon a change in control of the Company, as defined in the Company’s standard change in control agreements. 

 

	 	•	 	 Right to Change Plan  

 The Company reserves the right to modify or terminate the EVA Plan at any time. 
  

	 	•	 	 No Contract of Employment  

 Nothing contained herein shall be construed as a contract of employment between the Company (or any of its subsidiaries) and any participant, or as giving a right to any person to continue in the
employment of the Company or any of its subsidiaries or as limiting the right of the Company or any of its subsidiaries to discharge any participant at any time, with or without cause.EX-10.24

 Exhibit 10.24 
 Compensation Arrangements for 
 Certain Named Executive Officers

 Set forth below is a summary of the compensation arrangements of the executive officers to be named in the Company’s 2013 Proxy
Statement for the Annual Meeting of Stockholders, other than Mr. Jon P. Vrabely, the Company’s President and Chief Executive Officer, who is covered by a written employment agreement filed as an exhibit to the Company’s Annual
Report on Form 10-K for the year ended December 31, 2012 (the “Form 10-K”). 
 Each of the executive officers named below is an
employee at will whose compensation and employment status may be changed at any time in the discretion of the Company’s Board of Directors. 
 Base Salaries. In connection with the Company’s cost control efforts in response to the prolonged, severe decline in the housing market, the Company instituted a 10% reduction in the base
salaries of certain employees, including each of the executive officers, which became effective in November 2011 and, with respect to the executive officers, is still in effect. 
 The current base salary for each of the named executive officers, other than Mr. Vrabely, after giving effect to the 10% reduction instituted in November 2011 as described above is as follows:

  

					
	 	  	Base Salary	 
	 Name and Principal Position
	  	(After 10%
reduction)	 
	 Philip W. Keipp —

Vice President, Chief Financial Officer and Secretary
	  	$	225,000	  
	 Gregory W. Gurley —

Vice President, Product Management and Marketing
	  	$	202,500	  

 Base salaries are adjusted from time to time. Any such adjustments are approved by Board of Directors upon recommendation
of the Management Organization and Compensation Committee. 
 Bonuses and Equity Awards. These executive officers are also eligible to
participate in the Company’s annual incentive compensation plans and equity incentive compensation plans, as provided in the terms of such plans. Such plans, and any forms of awards thereunder providing for material terms, are included as
exhibits to the Form 10-K or to later-filed periodic reports.EX-10.25

 EXHIBIT 10.25 

COMPENSATION ARRANGEMENTS FOR OUTSIDE DIRECTORS 
 Cash Compensation 
 The cash fees paid to outside directors are as set forth
below. 
 Chairman of the Board 

The Chairman of the Board of Directors, Mr. R.S. Evans, receives a cash retainer fee at rate of $63,000 per year. Mr. Evans receives no other
cash compensation for his service on the Board and its Committees. 
 Other Non-Employee Directors 

Non-employee directors, other than Mr. Evans, receive the following cash compensation: 

 

					
	 Annual Board retainer
	  	$	20,250	  
	 Annual retainer – Audit Committee chairman
	  	$	8,100	  
	 Annual retainer – other Audit Committee members
	  	$	1,215	  
	 Annual retainer – Management Organization & Compensation Committee chairman
	  	$	2,430	  
	 Annual retainer – Executive Committee members
	  	$	1,620	  
	 Meeting fee
	  	$	1,620	  

 Stock Compensation 
 In accordance with Company’s non-employee directors’ stock compensation program, each non-employee director is awarded, on the date of the Annual Meeting of Stockholders, a grant of restricted
stock units (“RSUs”) for a number of shares equal to the lesser of (i) shares valued at $15,000 on the date of grant, or (ii) 15,000 shares. 
 The RSUs vest in full on the date of the next Annual Meeting of Stockholders or upon a change of control of the Company. The shares of stock represented by vested RSUs are delivered to the director upon
cessation of his service on the Board. 
 On April 23, 2012, the date of the 2012 Annual Meeting of Stockholders, each of the non-employee
directors received a grant of 11,152 RSUs in accordance with the above-described program. These RSUs will vest in full on April 22, 2013, the date of the 2013 Annual Meeting of Stockholders. 

Other 
 The Company
reimburses its directors for reasonable expenses incurred in attending Board and Committee meetings.EX-4.7

 This document is important and requires your immediate attention. If you are in any doubt as to
how to deal with it, you should consult your investment advisor, stockbroker, bank manager, accountant, lawyer or other professional advisor. 
 The Offer has not been approved or disapproved by any securities regulatory authority, nor has any securities regulatory authority passed upon the fairness or merits of the Offer or upon the adequacy
of the information contained in this document. Any representation to the contrary is an offence. 
 February 19, 2013

 NOTICE OF EXTENSION AND VARIATION 
 by 
  
 

 
 to its 
 OFFER TO PURCHASE 
 all of the outstanding common shares of

 AURIZON MINES LTD. 
 for consideration per Common Share of, at the election of each holder, 

Cdn$4.65 in cash (the “Cash Alternative”) or 
 0.2801 of an Alamos Share (the “Share Alternative”), 
 subject,
in each case, to pro-ration as set out in the Original Offer 
 Alamos Gold Inc. (“Alamos”) hereby gives
notice that it is amending its offer dated January 14, 2013 (the “Original Offer”) to purchase, on and subject to the terms and conditions of the Original Offer, all of the issued and outstanding common shares (the
“Common Shares”) of Aurizon Mines Ltd. (“Aurizon”), other than any Common Shares held directly or indirectly by Alamos and its affiliates, and including any Common Shares that may become issued and outstanding after
the date hereof but before the Expiry Time (as defined herein) upon the exercise, exchange or conversion of any Convertible Securities (as defined herein), in order to, among other things, extend the Original Offer until 5:00 p.m. (local time) on
Tuesday, March 5, 2013. The Original Offer, as amended and extended hereby, is referred to herein as the “Offer”. 

 

THE ORIGINAL OFFER HAS BEEN AMENDED AND EXTENDED, AND IS NOW OPEN FOR ACCEPTANCE 

UNTIL 5:00 P.M. (LOCAL TIME) ON TUESDAY, MARCH 5, 2013 (THE “EXPIRY TIME”), UNLESS 

FURTHER EXTENDED OR WITHDRAWN. 

 This Notice of Extension and Variation (this “Notice of Extension and Variation”) should be read in conjunction with the offer dated January 14, 2013 (the “Original Offer to
Purchase”) and accompanying circular dated January 14, 2013 (the “Original Circular”, and, together with the Original Offer to Purchase, the “Original Offer and Circular”) in connection with the
Original Offer. The Original Offer and Circular and this Notice of Extension and Variation together constitute the “Offer and Circular”. Except as otherwise set forth herein, the terms and conditions previously set forth in the
Original Offer and Circular, the Letter of Transmittal and the Notice of Guaranteed Delivery continue to be applicable in all respects. All references to the “Offer” in the Original Offer and Circular, the Letter of Transmittal, the Notice
of Guaranteed Delivery and this Notice of Extension and Variation mean the Original Offer as amended hereby, and all references in such documents to the “Circular” or the “Offer and Circular” mean the Original Offer and Circular
as amended hereby. Unless the context requires otherwise, capitalized terms used herein but not defined herein that are defined in the Original Offer and Circular have the respective meanings given to them in the Original Offer and Circular.

  

			
	 The Depositary and Information Agent
 for the Offer is:
  
 KINGSDALE SHAREHOLDER SERVICES INC.
	  	 The Dealer Manager
 for the Offer is:
  
 DUNDEE CAPITAL MARKETS

 If you have any questions or need any assistance in depositing your Common Shares, 

please contact Kingsdale Shareholder Services Inc. at: 
 Toll-Free (North America): 1-866-851-3214 
 Outside North America:
416-867-2272 
 E-mail: contactus@kingsdaleshareholder.com 

 

  

 Persons whose Common Shares are registered in the name of an investment advisor,
stockbroker, bank, trust company or other nominee should contact such nominee for assistance if they wish to accept the Offer in order to take the necessary steps to be able to deposit such Common Shares under the Offer. Intermediaries likely have
established tendering cut-off times that are up to 48 hours prior to the Expiry Time. Shareholders must instruct their brokers or other intermediaries promptly if they wish to tender. 

Registered Shareholders who wish to accept the Offer must properly complete and execute the Letter of Transmittal (printed on
YELLOW paper) that accompanied the Original Offer and Circular, or a manually executed facsimile thereof, and deposit it, at or prior to the Expiry Time, together with certificate(s) or Direct Registration System (DRS) Advices
representing their Common Shares and all other required documents, with Kingsdale Shareholder Services Inc. (the “Depositary and Information Agent”) at its office in Toronto, Ontario specified in the Letter of Transmittal, in
accordance with the instructions set out in the Letter of Transmittal (as set out in Section 3 of the Original Offer, “Manner of Acceptance — Letter of Transmittal”). Alternatively, registered Shareholders may accept the Offer by
(i) following the procedures for book-entry transfer of Common Shares set out in Section 3 of the Original Offer, “Manner of Acceptance — Acceptance by Book-Entry Transfer”, or (ii) following the procedure for
guaranteed delivery set out in Section 3 of the Original Offer, “Manner of Acceptance — Procedure for Guaranteed Delivery”, using the Notice of Guaranteed Delivery (printed on GREEN paper) that accompanied the
Original Offer and Circular, or a manually executed facsimile thereof. Shareholders who hold their Common Shares with a bank, broker or other financial intermediary did not receive a Letter of Transmittal or Notice of Guaranteed Delivery, and should
follow the instructions set out by such intermediary to tender their Common Shares. 
 Shareholders will not be required to
pay any fee or commission if they accept the Offer by depositing their Common Shares directly with the Depositary and Information Agent or if they make use of the services of a Soliciting Dealer to accept the Offer. 

The cash payments to Shareholders will be denominated in Canadian dollars. However, Shareholders can also elect to receive payment
of the cash to which they are entitled under the Offer in U.S. dollars by checking Box 2, Choice A of the Letter of Transmittal, in which case each such Shareholder will have acknowledged and agreed that the exchange rate for one Canadian dollar
expressed in U.S. dollars will be based on the exchange rate available to the Depositary and Information Agent at its typical banking institution on the date the funds are converted. A Shareholder electing to receive payment of the cash to which it
is entitled under the Offer made in U.S. dollars will have further acknowledged and agreed that any change to the currency exchange rates of the United States or Canada will be at the sole risk of such Shareholder. 

Shareholders who have validly deposited and not withdrawn their Common Shares need take no further action to accept the Offer.

 Questions and requests for assistance may be directed to the Depositary and Information Agent, Kingsdale Shareholder
Services Inc., who can be contacted at 1-866-851-3214 toll free in North America or at 416-867-2272 outside of North America or by e-mail at contactus@kingsdaleshareholder.com; or Dundee Capital Markets (the “Dealer Manager”) and
additional copies of this document, the Original Offer and Circular, the Letter of Transmittal and the Notice of Guaranteed Delivery may be obtained, without charge, upon request from the Depositary and Information Agent or the Dealer Manager at
their respective offices shown on the last page of this document, and are accessible on the Canadian Securities Administrators’ website at www.sedar.com. This website address is provided for informational purposes only and no information
contained on, or accessible from, this website is incorporated by reference herein unless otherwise provided. 
 The information
contained in this document speaks only as of the date of this document. Alamos does not undertake to update any such information except as required by applicable Law. Information in this Notice of Extension and Variation and the Original Offer and
Circular related to Aurizon has been compiled from public sources. 
 No broker, dealer, salesperson or other person has been
authorized to give any information or make any representation other than those contained in this Notice of Extension and Variation or the Original Offer and Circular, and, if given or made, such information or representation must not be relied upon
as having been authorized by Alamos, the Depositary and Information Agent or the Dealer Manager. 
  

 NOTICE TO SHAREHOLDERS OUTSIDE CANADA 

The Offer is subject to Section 14(d) of the U.S. Exchange Act, Regulation 14D promulgated by the United States Securities and
Exchange Commission (the “SEC”) thereunder, Section 14(e) of the U.S. Exchange Act and Regulation 14E promulgated by the SEC thereunder. The offering of Alamos Shares pursuant to the Offer, however, is made by a Canadian issuer that
is permitted, under a multi-jurisdictional disclosure system adopted by the United States, to prepare the Offer and Circular in accordance with the disclosure requirements of Canada. The Offer is subject to applicable disclosure requirements in
Canada. Shareholders should be aware that such requirements are different from those of the United States and may differ from those in other jurisdictions. Financial statements included or incorporated by reference herein have been prepared in
accordance with International Financial Reporting Standards as issued by the International Accounting Standards Board and are subject to Canadian auditing standards and auditor independence rules, and thus may not be comparable to financial
statements of United States companies or companies incorporated in other jurisdictions. 
 Shareholders in the United
States should be aware that the disposition of Common Shares by them as described herein may have tax consequences in the United States, Canada and other jurisdictions. Such consequences may not be fully described herein and such holders are urged
to consult their tax advisors. See Section 19 of the Circular, “Principal Canadian Federal Income Tax Considerations” and Section 20 of the Circular, “U.S. Federal Income Tax Considerations”. 

The enforcement by Shareholders of civil liabilities under U.S. federal or state securities laws or applicable laws in other
jurisdictions may be affected adversely by the fact that Alamos is governed by the laws of Canada, that some of its officers and directors are residents of jurisdictions other than the United States, that the Dealer Manager and some of the experts
named in the Circular are Canadian residents and that all or a substantial portion of the assets of Alamos and such persons may be located outside the United States or such other jurisdictions. The enforcement by Shareholders of civil liabilities
under the securities laws of the United States or applicable laws in other jurisdictions may also be affected adversely by the fact that some of Aurizon’s officers and directors are resident outside the United States or such other jurisdictions
and that all or a substantial portion of the assets of Aurizon and Aurizon’s officers and directors may be located outside the United States or such other jurisdictions. It may be difficult to compel Alamos or any of the aforementioned persons
to subject itself to the judgment of a court in the United States or any such other jurisdiction. 
 THE ALAMOS SHARES
AND THE OFFER HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE SEC OR ANY STATE SECURITIES COMMISSION, NOR HAS THE SEC OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCURACY OR ADEQUACY OF THE OFFER AND CIRCULAR. ANY REPRESENTATION TO THE CONTRARY
IS A CRIMINAL OFFENCE. 
 Alamos has filed with the SEC a Registration Statement on Form F–10, as amended (the
“Registration Statement”), a Tender Offer Statement on Schedule TO, as amended (the “Tender Offer Statement”), and other documents and information, has mailed the Original Offer and Circular to Shareholders and
expects to mail this Notice of Extension and Variation to Shareholders. SHAREHOLDERS ARE URGED TO READ THE REGISTRATION STATEMENT, THE TENDER OFFER STATEMENT AND THE OFFER AND CIRCULAR AND ANY OTHER RELEVANT DOCUMENTS TO BE FILED WITH THE SEC,
BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. Investors and Shareholders will be able to obtain the documents free of charge at the SEC’s website, www.sec.gov. In addition, documents filed with the SEC by Alamos will be available free
of charge from Alamos. You should direct requests for documents to the Vice-President, Legal of Alamos at Suite 2200, 130 Adelaide Street West, Toronto, Ontario M5H 3P5, telephone (416) 368-9932. To obtain timely delivery, such documents should
be requested not later than February 26, 2013, five business days before the Expiry Date. 
 This document and the Original
Offer and Circular do not generally address the income tax consequences of the Offer to Shareholders in any jurisdiction outside Canada or the United States. Shareholders in a jurisdiction outside Canada or the United States should be aware that the
disposition of Common Shares may have tax consequences which may not be described herein. Accordingly, Shareholders outside Canada and the United States should consult their own tax advisors with respect to tax considerations applicable to them.

 The Offer does not constitute an offer to sell or a solicitation of an offer to buy any securities in any state in the United
States or any other jurisdiction in which such offer or solicitation is unlawful. The Offer is not being made or directed to, nor is this document being mailed to, nor will deposits of Common Shares be accepted from or on behalf of, Shareholders in
any state in the United States or any other jurisdiction in which the making or acceptance of the Offer would not be in compliance with the laws of such state or other jurisdiction. Alamos or its agents may, in its or their sole discretion, take
such action as it or they may deem desirable to extend the Offer to Shareholders in any such state or other jurisdiction. Notwithstanding the foregoing, Alamos or its agents may elect not to complete such action in any given instance. Accordingly,
Alamos cannot at this time assure Shareholders that otherwise valid tenders can or will be accepted from holders resident in all states in the United States and all other jurisdictions. 

 

 Unless otherwise indicated, all resource and reserve estimates included or incorporated
by reference into the Offer and Circular have been prepared in accordance with National Instrument 43-101 — Standards of Disclosure for Mineral Projects (“NI 43-101”) and the Canadian Institute of Mining,
Metallurgy and Petroleum (the “CIM”) — CIM Definition Standards on Mineral Resources and Mineral Reserves, adopted by the CIM Council, as amended. NI 43-101 is a rule developed by the Canadian Securities Administrators,
which established standards for all public disclosure an issuer makes of scientific and technical information concerning mineral projects. The terms “mineral reserve”, “proven mineral reserve” and “probable mineral
reserve” are Canadian mining terms as defined in accordance with NI 43-101 and the CIM standards. These definitions differ from the definitions in SEC Industry Guide 7 (“SEC Industry Guide 7”) under the U.S. Securities Act and
the U.S. Exchange Act. Under SEC Industry Guide 7 standards, a “final” or “bankable” feasibility study is required to report reserves, the three-year historical average price is used in any reserve or cash flow analysis to
designate reserves and the primary environmental analysis or report must be filed with the appropriate governmental authority. 

In addition, the terms “mineral resource”, “measured mineral resource”, “indicated mineral resource” and
“inferred mineral resource” are defined in and required to be disclosed by NI 43-101 and the CIM standards; however, these terms are not defined terms under SEC Industry Guide 7 and are normally not permitted to be used in reports and
registration statements filed with the SEC. Investors are cautioned not to assume that all or any part of mineral deposits in these categories will ever be converted into reserves. “Inferred mineral resources” have a great amount of
uncertainty as to their existence, and great uncertainty as to their economic and legal feasibility. It cannot be assumed that all or any part of an inferred mineral resource will ever be upgraded to a higher category. Under Canadian rules,
estimates of inferred mineral resources may not form the basis of feasibility or pre-feasibility studies, except in rare cases. Investors are cautioned not to assume that all or any part of an inferred mineral resource exists or is economically or
legally mineable. Disclosure of “contained ounces” in a resource is permitted disclosure under Canadian regulations; however, the SEC normally only permits issuers to report mineralization that does not constitute “reserves” by
SEC standards as in place tonnage and grade without reference to unit measures. See Section 24 of the Circular, “Risk Factors Related to the Offer — There are differences in U.S. and Canadian practices for reporting mineral reserves
and resources”. 
 These standards differ significantly from the requirements of the SEC, and mineral reserve and mineral
resource information contained or incorporated by reference herein may not be comparable to similar information disclosed by United States companies. 
 NOTICE TO HOLDERS OF CONVERTIBLE SECURITIES 
 The Offer is made only for
Common Shares and is not made for any options or any other rights to acquire Common Shares (collectively, “Convertible Securities”). Any holder of Convertible Securities who wishes to accept the Offer should, subject to and to the
extent permitted by the terms of such Convertible Securities and applicable Law, exercise, exchange or convert such Convertible Securities in order to obtain certificates representing Common Shares and deposit such Common Shares in accordance with
the Offer. See Section 1 of the Original Offer, “The Offer”. Any such exercise, exchange or conversion must be completed sufficiently in advance of the Expiry Time to ensure that the holder of such Convertible Securities will have
received certificates representing the Common Shares issuable upon such exercise, exchange or conversion in time for deposit prior to the Expiry Time, or in sufficient time to comply with the procedures described in Section 3 of the Original
Offer, “Manner of Acceptance — Procedure for Guaranteed Delivery”. 
 The tax consequences to holders of
Convertible Securities of exercising or not exercising such securities are not described in the Offer and Circular. Holders of such Convertible Securities should consult their own tax advisors with respect to the potential income tax consequences to
them in connection with the decision to exercise or not exercise such securities. 
 REPORTING CURRENCY AND CURRENCY
EXCHANGE RATE INFORMATION 
 Unless otherwise indicated, all references to “$”, “Cdn$” or
“dollars” in the Offer and Circular are to Canadian dollars. 
 The following table sets forth the high and low
exchange rates for one U.S. dollar expressed in Canadian dollars for each period indicated, the average of the exchange rate for each period indicated and the exchange rate at the end of such period, based upon the noon buying rates provided by the
Bank of Canada: 
  

													
	 	  	Year Ended December 31	 
	 	  	2012	 	  	2011	 	  	2010	 
	 High
	  	 	1.0418	  	  	 	1.0604	  	  	 	1.0778	  
	 Low
	  	 	0.9710	  	  	 	0.9449	  	  	 	0.9946	  
	 Rate at end of period
	  	 	0.9949	  	  	 	1.0170	  	  	 	0.9946	  
	 Average rate for period
	  	 	0.9996	  	  	 	0.9891	  	  	 	1.0299	  

 The Bank of Canada noon rate of exchange on February 19, 2013 for Canadian dollars was US$1.00 =
Cdn$1.0118. 
  

 NOTICE REGARDING FORWARD-LOOKING STATEMENTS 

Certain statements in the Original Offer and Circular, including under Section 3 of the Circular, “Background to the
Offer”; Section 4 of the Circular, “Reasons to Accept the Offer”; Section 5 of the Circular, “Purpose of the Offer and Alamos’ Plans for Aurizon”; Section 15 of the Circular, “Acquisition of Common
Shares Not Deposited Under the Offer”; and Section 18 of the Circular, “Effect of the Offer on the Market for and Listing of Common Shares and Status as a Reporting Issuer”, in addition to certain statements contained elsewhere
in the Offer and Circular or incorporated by reference into the Offer and Circular, are forward-looking statements, including within the meaning of the U.S. Exchange Act. All statements other than statements of historical fact included in the Offer
and Circular or incorporated by reference herein, including, without limitation, statements regarding forecast gold production, gold grades, recoveries, waste-to-ore ratios, total cash costs, potential mineralization and reserves, exploration
results, and future plans and objectives of Alamos, are forward-looking statements that involve various risks and uncertainties. These forward-looking statements include, but are not limited to, statements with respect to mining and processing of
mined ore, achieving projected recovery rates, anticipated production rates and mine life, operating efficiencies, costs and expenditures, changes in mineral resources and conversion of mineral resources to proven and probable reserves, and other
information that is based on forecasts of future operational or financial results, estimates of amounts not yet determinable and assumptions of management. 
 Exploration results that include geophysics, sampling, and drill results on wide spacings may not be indicative of the occurrence of a mineral deposit. Such results do not provide assurance that further
work will establish sufficient grade, continuity, metallurgical characteristics and economic potential to be classed as a category of mineral resource. A mineral resource that is classified as “inferred” or “indicated” has a
great amount of uncertainty as to its existence and economic and legal feasibility. It cannot be assumed that any or part of an “indicated mineral resource” or “inferred mineral resource” will ever be upgraded to a higher
category of resource. Investors are cautioned not to assume that all or any part of mineral deposits in these categories will ever be converted into proven and probable reserves. 

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”. Forward-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 risks related to the Offer; fluctuations in
the value of the consideration; integration issues; the effect of the Offer on the market price of Alamos Shares; the exercise of dissent rights in connection with a Compulsory Acquisition or Subsequent Acquisition Transaction; the liquidity of the
Common Shares; risks associated with Aurizon becoming a subsidiary of Alamos; differences in Shareholder interests; the reliability of the information regarding Aurizon; change of control provisions; risks associated with obtaining governmental and
regulatory approvals; failure to maintain effective internal controls; the liquidity of the Alamos Shares on the NYSE; the effect of the Offer on non-Canadian Shareholders; and risks related to the on-going business of Alamos, including risks
related to international 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 and silver, as well as
those risk factors described in Section 24 of the Circular, “Risk Factors Related to the Offer” and in the section entitled “Risk Factors” that is included in Alamos’ annual information form dated March 29, 2012
incorporated by reference into the Offer and Circular. 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 could differ materially from those anticipated in such statements. Accordingly, readers should not place undue
reliance on forward-looking statements. 
 NOTICE REGARDING AURIZON INFORMATION 

Except as otherwise indicated, the information concerning Aurizon contained in the Offer and Circular has been taken from or is based
upon publicly available information filed with Canadian securities regulators and other public sources available as at February 18, 2013. Aurizon has not reviewed this document and has not confirmed the accuracy and completeness of the
information in respect of Aurizon contained herein. Neither Alamos, nor any person acting jointly or in concert with Alamos, nor any of the directors or officers of Alamos or such persons, assumes any responsibility for the accuracy or completeness
of such information or any failure by Aurizon to disclose events or facts which may have occurred or which may affect the significance or accuracy of any such information but which are unknown to Alamos or such persons. Except as otherwise
indicated, Alamos has no means of verifying the accuracy or completeness of any of the information contained in this document that is derived from publicly available information regarding Aurizon or whether there has been any failure by Aurizon to
disclose events or facts that may have occurred or may affect the significance or accuracy of any such information. 
  

 NOTICE OF EXTENSION AND VARIATION 

February 19, 2013 

TO:    THE HOLDERS OF COMMON SHARES OF AURIZON MINES LTD. 

This Notice of Extension and Variation amends and supplements the Original Offer and Circular, pursuant to which Alamos is offering to
purchase, on the terms and subject to the conditions of the Offer, all of the issued and outstanding Common Shares of Aurizon, other than any Common Shares held directly or indirectly by Alamos and its affiliates, and including any Common Shares
that may become issued and outstanding after the date of the Offer but before the Expiry Time upon the exercise, exchange or conversion of any Convertible Securities, in order to, among other things, extend the expiry of the Offer from 5:00 p.m.
(Toronto time) on February 19, 2013 to 5:00 p.m. (local time) on March 5, 2013, unless the Offer is further extended or withdrawn. 
 Except as otherwise set forth in this Notice of Extension and Variation, the terms and conditions set forth in the Original Offer and Circular, the Letter of Transmittal and the Notice of Guaranteed
Delivery that accompanied the Original Offer and Circular continue to be applicable in all respects. This Notice of Extension and Variation should be read in conjunction with the Original Offer and Circular, the Letter of Transmittal and the Notice
of Guaranteed Delivery that accompanied the Original Offer and Circular. 
 Unless otherwise defined herein or amended hereby,
defined terms used in this Notice of Extension and Variation have the same meaning as in the Original Offer and Circular. The term “Offer” means the Original Offer as expressly amended and supplemented by this Notice of Extension and
Variation. 
  

	1.	Extension of the Offer 

By notice to the Depositary and Information Agent given on February 18, 2013 and as set forth in this Notice of Extension and
Variation, Alamos has extended the expiry of the Offer from 5:00 p.m. (Toronto time) on February 19, 2013 to 5:00 p.m. (local time) on March 5, 2013, unless the Offer is further extended or withdrawn. Accordingly, all references to
“5:00 p.m. (Toronto time) on February 19, 2013” and “5:00 p.m. (Toronto time) on Tuesday, February 19, 2013” are amended to refer to “5:00 p.m. (local time) on March 5, 2013” and “5:00 p.m. (local
time) on Tuesday, March 5, 2013”, respectively. 
  

	2.	Recent Developments 

Since the date of the Original Offer and Circular there have occurred certain developments relating to the Offer which are summarized
below. 
 On January 14, 2013, Aurizon issued a press release noting Alamos’ announcement of the Offer and announcing
that Aurizon was in the process of reviewing and evaluating the Offer and expected that a special committee of the board of directors of Aurizon (the “Aurizon Board”) would be appointed. 

On January 15, 2013, the Aurizon Board appointed a special committee with a mandate that included the review and evaluation of the
Offer. The special committee met on January 15, 2013 to review the Offer and to discuss procedural matters. 
 On
January 18, 2013, Aurizon issued a press release announcing that it had appointed Scotia Capital Inc. as financial advisor and DuMoulin Black LLP and Blake, Cassels & Graydon LLP as legal counsel to assist in responding to the Offer.
Aurizon also announced that it had appointed the special committee, the special committee had appointed CIBC World Markets Inc. as its financial advisor and Blake, Cassels & Graydon LLP to provide advice to the special committee. Aurizon
also appointed Paul, Weiss, Rifkind, Wharton & Garrison LLP as United States legal counsel in connection with the Offer. 
 On January 21, 2013, Alamos mailed to Shareholders the Original Offer and Circular and related documents with respect to the Offer. 

  
 1 

 On January 23, 2012, Aurizon issued a directors’ circular (the
“Directors’ Circular”) in response to the Offer which recommended that Shareholders reject the Offer and not tender their Common Shares to the Offer. In response to the Offer, the Aurizon Board also adopted a shareholder rights
plan (the “Shareholder Rights Plan”). 
 On January 24, 2013, Alamos issued a press release responding to
the Directors’ Circular, noting that the Directors’ Circular provided no new information that would cause Alamos to modify the Offer and reiterated the benefits to Shareholders of accepting the Offer. 

On January 29, 2013, Aurizon issued a press release announcing that the TSX determined to defer its consideration of the acceptance
for filing of the Shareholder Rights Plan until the British Columbia Securities Commission (the “BCSC”) had the opportunity to consider whether it would initiate proceedings under securities laws with respect to the Shareholder
Rights Plan. 
 On February 1, 2013, Alamos received an ARC from the Commissioner under the Competition Act in connection
with the Offer. 
 On February 5, 2013, Alamos applied to the BCSC requesting that the BCSC promptly hold a hearing to
consider cease trading the Shareholder Rights Plan and any rights issued thereunder. 
 On February 6, 2013, Alamos
received early termination of the waiting period under the HSR Act with respect to the Offer. 
 On the evening of
February 6, 2013, Alamos sent a letter to Aurizon in response to statements of Aurizon regarding the Offer. Among other things, Alamos requested access to the information Aurizon provided to other parties in connection with Aurizon’s
publicly announced strategic alternative review process, indicating that Alamos may find information relating to Aurizon that supports paying a higher offer price. Aurizon has repeatedly refused to provide Alamos access to its data room for this
purpose. 
 On February 8, 2013, Aurizon mailed meeting materials to Shareholders in connection with the special meeting of
Shareholders scheduled for March 7, 2013 to ratify the Shareholder Rights Plan. 
 On February 12, 2013, Aurizon
announced that the BCSC would hold a hearing on February 18, 2013 in response to Alamos’ application for an order to cease trade the Shareholder Rights Plan. 
 On February 13, 2013, the Alamos Shares commenced trading on the NYSE under the symbol “AGI”. 
 On February 18, 2013, Alamos and Aurizon consented to the making of an order by the BCSC to cease trade any securities issued, or to be issued, in connection with the Shareholder Rights Plan,
effective at 5:00 p.m. (Vancouver time) on March 4, 2013, unless Aurizon waives the Shareholder Rights Plan before such time. 
  

	3.	Amendments to the Offer and Circular 

 In addition to the amendments to the Offer and Circular set out in Section 1 of this Notice of Extension and Variation, Alamos has amended and restated certain portions of the Offer and Circular as
follows: 
  

	 	•	 	 The second paragraph in italics on the top of the cover page of the Offer and Circular is hereby deleted in its entirety. 

 

	 	•	 	 The section entitled “Summary Term Sheet” in the Offer and Circular is hereby amended to include the following paragraphs after the third
paragraph on page IV of the Offer and Circular: 

 “If Alamos elects to provide a Subsequent Offering
Period, Alamos will publicly announce the Subsequent Offering Period and, if required by applicable Law, Alamos will mail you a notice of the Subsequent Offering Period. Furthermore, in accordance with Rule 14d-11(d) under the U.S. Exchange Act, if
it elects to provide a Subsequent Offering Period, Alamos will announce the results of the Offer, including the approximate number and percentage of Common Shares deposited to date, no later than 9:00 a.m. Eastern time on the next business day after
the Expiry Time and will immediately begin the Subsequent Offering Period. 
 The factors that could affect Alamos’
decision as to whether it will elect to provide a Subsequent Offering Period include, without limitation, (i) the number of Common Shares that have been validly tendered to the Offer and not withdrawn prior to the Expiry Time (the “Tendered
Shares”), (ii) whether Alamos can effect a Compulsory 

  
 2 

 
Acquisition (as defined below) or Subsequent Acquisition Transaction (as defined below) after the Expiry Time and, in particular, whether the number of Tendered Shares, together with the Common
Shares held by Alamos and its affiliates, represents not less than 90% or 66 2/3
% of the issued and outstanding Common Shares (calculated on a fully diluted basis), (iii) the conditions to the Offer being satisfied, and (iv) discussions with its financial
and legal advisors regarding the feasibility of a Subsequent Offering Period, a Compulsory Acquisition and/or a Subsequent Acquisition Transaction. Alamos would commence the Subsequent Offering Period, if any, after the announcement of the results
of the Offer in accordance with Rule 14d-11(d) under the U.S. Exchange Act.” 
  

	 	•	 	 The section entitled “Summary” in the Offer and Circular is hereby amended to include the following paragraphs after the first paragraph
under the heading “The Offer” on page i of the Offer and Circular: 

 “Shareholders may not
elect to receive a mix of cash and Alamos Shares as consideration for their Common Shares. The maximum amount of cash payable by Alamos pursuant to the Offer shall not exceed $305,000,000 and the maximum number of Alamos Shares issuable by Alamos
pursuant to the Offer shall not exceed 23,500,000. As described in more detail in Section 1 of the Offer, “The Offer”, the consideration payable under the Offer will be prorated on each Take-Up Date as necessary to ensure that the
total aggregate consideration payable under the Offer and in any Compulsory Acquisition or Subsequent Acquisition Transaction does not exceed these maximum aggregate amounts and will be based on the number of Common Shares acquired in proportion to
the number of Common Shares to which the Offer relates. Therefore, due to pro-ration and the maximum amount of cash relative to the maximum amount of Alamos Shares available under the Offer on each Take-Up Date, if the aggregate cash consideration
that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Cash Consideration, then the amount of cash that a Shareholder electing the Cash Alternative will receive will be pro-rated.
Similarly, if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Share Consideration, then the number of Alamos Shares that a Shareholder
electing the Share Alternative will receive will be pro-rated. 
 The only scenario where a Shareholder electing the Cash
Alternative would not have its share of the cash component of the Offer consideration be pro-rated would be if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date does not exceed
the Maximum Take-Up Date Cash Consideration. Similarly, the only scenario where a Shareholder electing the Share Alternative would not have its share of the Alamos Shares component of the Offer consideration be pro-rated would be if the aggregate
number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Share Consideration.” 

 

	 	•	 	 The first sentence of the paragraph entitled “Opportunity to Elect Consideration” on page iii of the Offer and Circular is hereby deleted in
its entirety and replaced with the following: 

 “The Offer provides Shareholders with the opportunity to
determine the consideration that they receive under the Offer, either the Cash Alternative or the Share Alternative, subject in each case to pro-ration as more fully described in Section 1 of the Offer, “The Offer”.” 

 

	 	•	 	 The paragraph entitled “Opportunity to Elect Consideration” on page iii of the Offer and Circular is hereby amended to include the following
sentences after the last sentence of the paragraph: 

 “However, due to pro-ration and the maximum amount
of cash relative to the maximum amount of Alamos Shares available under the Offer on each Take-Up Date, if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date exceeds the Maximum
Take-Up Date Cash Consideration, then the amount of cash that a Shareholder electing the Cash Alternative will receive will be pro-rated. Similarly, if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share
Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Share Consideration, then the number of Alamos Shares that a Shareholder electing the Share Alternative will receive will be pro-rated. The only scenario where a Shareholder electing the
Cash Alternative would not have its share of the cash component of the Offer consideration be pro-rated would be if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date does not
exceed the Maximum Take-Up Date Cash Consideration. 

  
 3 

 
Similarly, the only scenario where a Shareholder electing the Share Alternative would not have its share of the Alamos Shares component of the Offer consideration be pro-rated would be if the
aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Share Consideration.” 

 

	 	•	 	 The section entitled “The Offer” in the Offer and Circular is hereby amended to include the following paragraphs after the first paragraph
under the heading “1. The Offer” on page 1 of the Offer and Circular: 

 “The Offer is made only
for Common Shares, and is not made for any other securities. Shareholders may not elect to receive a mix of cash and Alamos Shares as consideration for their Common Shares. The maximum amount of cash payable by Alamos pursuant to the Offer shall not
exceed $305,000,000 and the maximum number of Alamos Shares issuable by Alamos pursuant to the Offer shall not exceed 23,500,000. The consideration payable under the Offer will be prorated on each Take-Up Date as necessary to ensure that the total
aggregate consideration payable under the Offer and in any Compulsory Acquisition or Subsequent Acquisition Transaction does not exceed these maximum aggregate amounts and will be based on the number of Common Shares acquired in proportion to the
number of Common Shares to which the Offer relates. Therefore, due to pro-ration and the maximum amount of cash relative to the maximum amount of Alamos Shares available under the Offer on each Take-Up Date, if the aggregate cash consideration that
would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Cash Consideration, then the amount of cash that a Shareholder electing the Cash Alternative will receive will be
pro-rated. Similarly, if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Share Consideration, then the number of Alamos Shares that
a Shareholder electing the Share Alternative will receive will be pro-rated. 
 The only scenario where a Shareholder electing
the Cash Alternative would not have its share of the cash component of the Offer consideration be pro-rated would be if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date does not
exceed the Maximum Take-Up Date Cash Consideration. Similarly, the only scenario where a Shareholder electing the Share Alternative would not have its share of the Alamos Shares component of the Offer consideration be pro-rated would be if the
aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Share Consideration.” 

 

	 	•	 	 The section entitled “The Offer” in the Offer and Circular is hereby amended to include the following paragraphs after the first paragraph
following paragraph (d) on page 2 of the Offer and Circular: 

 “However, due to pro-ration and the
maximum amount of cash relative to the maximum amount of Alamos Shares available under the Offer on each Take-Up Date, if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date exceeds
the Maximum Take-Up Date Cash Consideration, then the amount of cash that a Shareholder electing the Cash Alternative will receive will be pro-rated. Similarly, if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos
under the Share Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Share Consideration, then the number of Alamos Shares that a Shareholder electing the Share Alternative will receive will be pro-rated. 

The only scenario where a Shareholder electing the Cash Alternative would not have its share of the cash component of the Offer
consideration be pro-rated would be if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Cash Consideration. Similarly, the only scenario
where a Shareholder electing the Share Alternative would not have its share of the Alamos Shares component of the Offer consideration be pro-rated would be if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos
under the Share Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Share Consideration.” 
  

	 	•	 	 The section entitled “The Offer” in the Offer and Circular is hereby amended to include the following paragraphs after the first sentence in
the second paragraph under the heading “2. Time for Acceptance” on page 3 of the Offer and Circular: 

  
 4 

 “If Alamos elects to provide a Subsequent Offering Period, Alamos will publicly
announce the Subsequent Offering Period and, if required by applicable Law, Alamos will mail you a notice of the Subsequent Offering Period. 
 The factors that could affect Alamos’ decision as to whether it will elect to provide a Subsequent Offering Period include, without limitation, (i) the number of Tendered Shares,
(ii) whether Alamos can effect a Compulsory Acquisition (as defined below) or Subsequent Acquisition Transaction (as defined below) after the Expiry Time and, in particular, whether the number of Tendered Shares, together with the Common Shares
held by Alamos and its affiliates, represents not less than 90% or 66 2/3% of the
issued and outstanding Common Shares (calculated on a fully diluted basis), (iii) the conditions to the Offer being satisfied, and (iv) discussions with its financial and legal advisors regarding the feasibility of a Subsequent Offering
Period, a Compulsory Acquisition and/or a Subsequent Acquisition Transaction. Alamos would commence the Subsequent Offering Period, if any, after the announcement of the results of the Offer in accordance with Rule 14d-11(d) under the U.S. Exchange
Act.” 
  

	 	•	 	 The section entitled “The Offer” in the Offer and Circular is hereby amended by deleting the third sentence of the fifth paragraph on page 6
of the Offer and Circular in its entirety and replacing it with the following sentence: 

 “Alamos
reserves the right to reject any and all deposits that it determines not to be in proper form.” 
  

	 	•	 	 The Offer and Circular is hereby amended by deleting the term “entities” in its entirety and replacing it with “Entities” in
(i) paragraphs (b) and (b)(ii) on page 8 of the Offer and Circular; (ii) paragraphs (b)(vi), (b)(vii), (b)(viii), (b)(ix), (b)(xi) and (b)(xiv) on page 9 of the Offer and Circular; (iii) paragraphs (e)(ii), (e)(iii), (g) and
(i) on page 10 of the Offer and Circular; (iv) paragraphs (j), (k), (l) and (m) on page 11 of the Offer and Circular; (v) the first sentence under the heading “12. Other Terms of the Offer” on page 17 of the Offer
and Circular; (vi) the second paragraph on page 18 of the Offer and Circular; (vii) the last paragraph on page 37 of the Offer and Circular; and (viii) the definition of “entities” on page 68 of the Offer and Circular.

  

	 	•	 	 The section entitled “Conditions of the Offer” in the Offer and Circular is hereby amended to include the following paragraph after the first
paragraph on page 12 of the Offer and Circular: 

 “On January 23, 2012, Aurizon issued a
directors’ circular (the “Directors’ Circular”) in response to the Offer which recommended that Shareholders reject the Offer and not tender their Common Shares to the Offer. In response to the Offer, the Aurizon Board
also adopted a shareholder rights plan (the “Shareholder Rights Plan”). Alamos does not deem condition (b) above to have been triggered by Aurizon’s rejection of the Offer pursuant to the Director’s Circular or by
Aurizon’s adoption of the Shareholder Rights Plan.” 
  

	 	•	 	 The section entitled “The Offer” in the Offer and Circular is hereby amended by deleting the last sentence of the second paragraph under the
heading “Take-up of and Payment for Deposited Common Shares” on page 13 of the Offer and Circular in its entirety. 

  

	 	•	 	 The first sentence of the third paragraph on page 22 of the Offer and Circular is hereby deleted in its entirety and replaced with:

 “Through a series of resolutions passed on November 1, 2012, November 15, 2012 and
December 4, 2012, the board of directors of Alamos authorized management to acquire Common Shares on the TSX if such Common Shares were obtainable under normal market conditions.” 

 

	 	•	 	 The first sentence of the paragraph entitled “Opportunity to Elect Consideration” on page 23 of the Offer and Circular is hereby deleted in
its entirety and replaced with the following: 

  
 5 

 “The Offer provides Shareholders with the opportunity to determine the consideration
that they receive under the Offer, either the Cash Alternative or the Share Alternative, subject in each case to pro-ration as more fully described in Section 1 of the Offer, “The Offer”.” 

 

	 	•	 	 The paragraph entitled “Opportunity to Elect Consideration” on page 23 of the Offer and Circular is hereby amended to include the following
sentences after the last sentence of the paragraph: 

 “However, due to pro-ration and the maximum amount
of cash relative to the maximum amount of Alamos Shares available under the Offer on each Take-Up Date, if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date exceeds the Maximum
Take-Up Date Cash Consideration, then the amount of cash that a Shareholder electing the Cash Alternative will receive will be pro-rated. Similarly, if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share
Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Share Consideration, then the number of Alamos Shares that a Shareholder electing the Share Alternative will receive will be pro-rated. The only scenario where a Shareholder electing the
Cash Alternative would not have its share of the cash component of the Offer consideration be pro-rated would be if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date does not
exceed the Maximum Take-Up Date Cash Consideration. Similarly, the only scenario where a Shareholder electing the Share Alternative would not have its share of the Alamos Shares component of the Offer consideration be pro-rated would be if the
aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Share Consideration.” 

 

	 	•	 	 The first paragraph under the heading “6. Share Purchase Agreements” on page 24 of the Offer and Circular is deleted in its entirety and
replaced with the following: 

 “The following is a summary only of the material provisions of the
Share Purchase Agreements (as defined herein) and is qualified in its entirety by reference to the Share Purchase Agreements, which will be filed with the Canadian securities regulatory authorities and the SEC and be publicly available under
Aurizon’s profile on the SEDAR website at www.sedar.com and on the SEC’s website at www.sec.gov.” 
  

	 	•	 	 The section entitled “The Circular” in the Offer and Circular is hereby amended by including the following paragraphs after the first
paragraph on page 39 of the Offer and Circular: 

 “In connection with a Compulsory Acquisition, Alamos
will: 
  

	 	(i)	with respect to Shareholders in the United States, (x) register any Alamos Shares to be issued in connection with a Compulsory Acquisition under Section 5 of
the U.S. Securities Act pursuant to an amendment to the Registration Statement or (y) rely on the exemption from the registration requirements of Section 5 of the U.S. Securities Act provided by Rule 802 under the U.S. Securities Act
(“Rule 802”); and 

  

	 	(ii)	with respect to Shareholders outside the United States, rely on the exemption from the registration requirements of Section 5 of the U.S. Securities Act provided
by Regulation S under the U.S. Securities Act (“Regulation S”). 

 In connection with a
Subsequent Acquisition Transaction, Alamos will: 
  

	 	(i)	with respect to Shareholders in the United States, (x) register any Alamos Shares to be issued in connection with a Subsequent Acquisition Transaction under
Section 5 of the U.S. Securities Act pursuant to an amendment to the Registration Statement, (y) rely on the exemption from the registration requirements of Section 5 of the U.S. Securities Act provided by Rule 802, if available, or
(z) rely on the exemption from the registration requirements of Section 5 of the U.S. Securities Act provided by Section 3(a)(10) of the U.S. Securities Act if it conducts a Subsequent Acquisition Transaction pursuant to a
court-approved plan of arrangement under Section 288 of the BCBCA; and 

  
 6 

	 	(ii)	with respect to Shareholders outside the United States, rely on the exemption from the registration requirements of Section 5 of the U.S. Securities Act provided
by Regulation S.” 

  

	 	•	 	 The first sentence of the last paragraph on page 60 is hereby deleted in its entirety and replaced with the following: 

“Alamos is offering to purchase Common Shares on the basis of, at the election of each Shareholder, $4.65 in cash for each Common
Share or 0.2801 of an Alamos Share for each Common Share, in each case, subject to pro-ration. Shareholders may not elect to receive a mix of cash and Alamos Shares as consideration for their Common Shares. The maximum amount of cash payable by
Alamos pursuant to the Offer shall not exceed $305,000,000 and the maximum number of Alamos Shares issuable by Alamos pursuant to the Offer shall not exceed 23,500,000. As described in more detail in Section 1 of the Offer, “The
Offer”, the consideration payable under the Offer will be prorated on each Take-Up Date as necessary to ensure that the total aggregate consideration payable under the Offer and in any Compulsory Acquisition or Subsequent Acquisition
Transaction does not exceed these maximum aggregate amounts and will be based on the number of Common Shares acquired in proportion to the number of Common Shares to which the Offer relates. Therefore, due to pro-ration and the maximum amount of
cash relative to the maximum amount of Alamos Shares available under the Offer on each Take-Up Date, if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date exceeds the Maximum
Take-Up Date Cash Consideration, then the amount of cash that a Shareholder electing the Cash Alternative will receive will be pro-rated. Similarly, if the aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share
Alternative on a Take-Up Date exceeds the Maximum Take-Up Date Share Consideration, then the number of Alamos Shares that a Shareholder electing the Share Alternative will receive will be pro-rated. The only scenario where a Shareholder electing the
Cash Alternative would not have its share of the cash component of the Offer consideration be pro-rated would be if the aggregate cash consideration that would otherwise be payable by Alamos under the Cash Alternative on a Take-Up Date does not
exceed the Maximum Take-Up Date Cash Consideration. Similarly, the only scenario where a Shareholder electing the Share Alternative would not have its share of the Alamos Shares component of the Offer consideration be pro-rated would be if the
aggregate number of Alamos Shares that would otherwise be issuable by Alamos under the Share Alternative on a Take-Up Date does not exceed the Maximum Take-Up Date Share Consideration.” 

 

	 	•	 	 The section of the Offer and Circular entitled “Glossary” is hereby amended by including the following definitions (in alphabetical order) on
pages 70 and 71 of the Offer and Circular: 

 ““Regulation S” has the meaning given to
that term in Section 15 of the Circular, “Acquisition of Common Shares Not Deposited Under the Offer”;” 

““Rule 802” has the meaning given to that term in Section 15 of the Circular, “Acquisition of Common
Shares Not Deposited Under the Offer”;” 
 ““Tendered Shares” has the meaning given to
that term in “Summary Term Sheet”;” 
  

	4.	Time for Acceptance 

 The
Offer is now open for acceptance until 5:00 p.m. (local time) on March 5, 2013, unless further extended or withdrawn. Shareholders who have validly deposited and not withdrawn their Common Shares need take no further action to accept the
Offer. 
  

	5.	Manner of Acceptance 

Common Shares which have not already been deposited pursuant to the Offer may be deposited under the Offer in accordance with the
provisions of Section 3 of the Original Offer, “Manner of Acceptance”. 

  
 7 

	6.	Take-up of and Payment for Deposited Common Shares 

 Upon the terms and subject to the conditions of the Offer (including the conditions specified in Section 4 of the Original Offer, “Conditions of the Offer”), Alamos will take up Common
Shares validly deposited under the Offer and not properly withdrawn promptly following the Expiry Time but in no event later than 10 days after the Expiry Time and will pay for Common Shares taken up as soon as practicable thereafter, but in any
event not later than three business days after taking up the deposited Common Shares. In accordance with applicable Law, Alamos will take up and pay for Common Shares deposited under the Offer in any Subsequent Offering Period within 10 days after
such deposit. Alamos will be deemed to have taken up and accepted for payment Common Shares validly deposited and not properly withdrawn pursuant to the Offer if, as and when Alamos gives written notice, or other communication confirmed in writing,
to the Depositary and Information Agent at its offices in Toronto, Ontario to that effect. See Section 6 of the Original Offer, “Take-Up and Payment for Deposited Common Shares”. 

 

	7.	Withdrawal of Deposited Common Shares 

 Common Shares deposited in acceptance of the Offer may be withdrawn by or on behalf of the depositing Shareholder at any time before the Common Shares have been taken up by Alamos under the Offer and in
the other circumstances described in Section 8 of the Original Offer, “Withdrawal of Deposited Common Shares”. Except as otherwise stated or as otherwise required by applicable Laws, all deposits of Common Shares under the Offer are
irrevocable. 
  

	8.	Consequential Amendments to the Original Offer and Circular 

 The Original Offer and Circular, the Letter of Transmittal and the Notice of Guaranteed Delivery shall be read together with this Notice of Extension and Variation and are amended to the extent necessary
to reflect the amendments contemplated by, and the information contained in, this Notice of Extension and Variation. 
 Except
as otherwise set forth in or amended by this Notice of Extension and Variation, the terms and conditions of the Offer and the information in the Original Offer and Circular, the Letter of Transmittal and the Notice of Guaranteed Delivery continue to
be applicable in all respects. 
  

	9.	Statutory Rights 

Securities legislation in the provinces and territories of Canada provides security holders of Aurizon with, in addition to any other
rights they may have at Law, one or more rights of rescission, price revision or to damages, if there is a misrepresentation in a circular or a notice that is required to be delivered to those security holders. However, such rights must be exercised
within prescribed time limits. Security holders should refer to the applicable provisions of the securities legislation of their province or territory for particulars of those rights or consult with a lawyer. 

 

	10.	Directors Approval 

 The
contents of this Notice of Extension and Variation have been approved, and the sending of this Notice of Extension and Variation to the Shareholders has been authorized, by the board of directors of Alamos. 

  
 8 

 CERTIFICATE OF ALAMOS GOLD INC. 

The foregoing, together with the Offer and Circular dated January 14, 2013, contains no untrue statement of a material fact and does
not omit to state a material fact that is required to be stated or that is necessary to make a statement not misleading in light of the circumstances in which it was made. 
 DATED: February 19, 2013 
  

			
	 (Signed) JOHN A MCCLUSKEY

President and Chief Executive Officer
	  	 (Signed) JAMES R. PORTER

Chief Financial Officer

	
	On behalf of the Board of Directors of Alamos Gold Inc.
		
	 (Signed) KENNETH STOWE

Director
	  	 (Signed) PAUL MURPHY

Director

  
 C-1

 THE DEALER MANAGER FOR THE OFFER IS: 

DUNDEE CAPITAL MARKETS 
  

			
	 In Canada:
 Dundee Securities Ltd.
 1 Adelaide Street East

Suite 2000

Toronto, Ontario M5C 2V9
 Tel. 416-350-3388
 Toll Free: 1-888-332-2661
	  	 In the United States:

Dundee Securities Inc.
 1 Adelaide Street East
 Suite 2000

Toronto, Ontario M5C 2V9
 Tel: 416-350-3388
 Toll Free: 1-888-332-2661

  
 THE DEPOSITARY AND INFORMATION
AGENT FOR THE OFFER IS: 
  
 

 
  

			
	By Mail	  	By Registered Mail, Hand or by Courier
		
	 The Exchange Tower
 130 King Street West, Suite 2950,
 P.O. Box 361

Toronto, Ontario

M5X 1E2
	  	 The Exchange Tower
 130 King Street West, Suite 2950,
 Toronto, Ontario

M5X 1E2

 North American Toll Free Phone: 

 
 

 
 E-mail: contactus@kingsdaleshareholder.com 

Facsimile: 416-867-2271 
 Toll Free Facsimile: 1-866-545-5580 
 Outside North America, Banks and Brokers Call
Collect: 416-867-2272

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