EX-4(r)



 Exhibit 4(r) 

ALCOA RETIREMENT SAVINGS PLAN 

FOR 
 FASTENER SYSTEMS
EMPLOYEES 
 EFFECTIVE JANUARY 1, 2015 







 ALCOA RETIREMENT SAVINGS PLAN FOR FASTENER SYSTEMS EMPLOYEES 

TABLE OF CONTENTS 
  

							
	SECTION	 	 	  	PAGE	 
	 DEFINITIONS
	  	 	1	  
		
	 GENERAL PROVISIONS
	  	 	10	  
			
	 SECTION 1.
	 	 PARTICIPATION
	  	 	10	  
	 SECTION 2.
	 	 EMPLOYEE SAVINGS
	  	 	10	  
	 SECTION 3.
	 	 PARTICIPATING EMPLOYER CONTRIBUTIONS
	  	 	12	  
	 SECTION 4.
	 	 DISCRETIONARY CONTRIBUTIONS
	  	 	13	  
	 SECTION 5.
	 	 EMPLOYER RETIREMENT INCOME CONTRIBUTIONS
	  	 	14	  
	 SECTION 6.
	 	 NONFORFEITURE OF PARTICIPATING EMPLOYER AND DISCRETIONARY CONTRIBUTIONS
	  			
	 	  	 	14	  
	 SECTION 7.
	 	 ROLLOVER CONTRIBUTIONS
	  	 	14	  
	 SECTION 8.
	 	 INVESTMENTS
	  	 	15	  
	 SECTION 9.
	 	 TRANSFERS BETWEEN INVESTMENTS
	  	 	15	  
	 SECTION 10.
	 	 WITHDRAWALS DURING EMPLOYMENT
	  	 	16	  
	 SECTION 11.
	 	 DISTRIBUTIONS UPON TERMINATION OF EMPLOYMENT
	  	 	17	  
	 SECTION 12.
	 	 PAYMENT OF DISTRIBUTIONS UPON TERMINATION OF EMPLOYMENT
	  	 	18	  
	 SECTION 13.
	 	 GENERAL PROVISIONS WITH RESPECT TO WITHDRAWALS
	  	 	20	  
	 SECTION 14.
	 	 NONASSIGNABILITY
	  	 	21	  
	 SECTION 15.
	 	 EXTENT OF PARTICIPANT’S RIGHTS
	  	 	21	  
	 SECTION 16.
	 	 MANAGEMENT OF FUNDS
	  	 	22	  
		
	 OTHER PROVISIONS OF THE PLAN
	  	 	25	  
			
	 SECTION 17.
	 	 LOANS
	  	 	25	  
	 SECTION 18.
	 	 TRUST
	  	 	26	  
	 SECTION 19.
	 	 ADMINISTRATION
	  	 	27	  
	 SECTION 20.
	 	 AMENDMENT, MODIFICATION, SUSPENSION OR TERMINATION
	  	 	29	  
	 SECTION 21.
	 	 ADMINISTRATIVE EXPENSES
	  	 	30	  
	 SECTION 22.
	 	 SELECTION OF BENEFICIARIES
	  	 	30	  
	 SECTION 23.
	 	 PARTICIPANT’S STATEMENT
	  	 	31	  
	 SECTION 24.
	 	 EFFECTIVE DATE OF PLAN
	  	 	31	  
	 SECTION 25.
	 	 CONSTRUCTION
	  	 	31	  


  
 Alcoa Retirement Savings Plan for
Fastener Systems Employees 
 Effective January 1, 2015 
  

i 









							
	 APPENDICES & SCHEDULES
	  	 	32	  
			
	 APPENDIX A.
	 	 LIMITATIONS & DISCRIMINATION TESTING
	  	 	32	  
	 APPENDIX B.
	 	 CODE SECTION 415 LIMITATIONS
	  	 	43	  
	 APPENDIX C.
	 	 TOP HEAVY RULES
	  	 	44	  
	 APPENDIX D.
	 	 MINIMUM DISTRIBUTION REQUIREMENTS
	  	 	46	  
	 SCHEDULE A
	 	 MERGERS, TRANSFERS, AND RESTATEMENTS
	  	 	50	  
	 SCHEDULE B
	 	 PARTICIPATING EMPLOYERS, PARTICIPATING EMPLOYER CONTRIBUTIONS (MATCH), AND EMPLOYER RETIREMENT INCOME CONTRIBUTIONS (ERIC)
	  	 	52	  


  
 Alcoa Retirement Savings Plan for
Fastener Systems Employees 
 Effective January 1, 2015 
  

ii 








 ALCOA RETIREMENT SAVINGS PLAN FOR FASTENER SYSTEMS EMPLOYEES 

EFFECTIVE JANUARY 1, 2015 

The Alcoa Retirement Savings Plan for Fastener Systems Employees (the “FS Plan” or “Plan”) was established as the Alcoa
Retirement Savings Plan for Fastener Systems and Commercial Windows Employees effective January 1, 2011, by Alcoa Global Fasteners, Inc. (herein called “AGF”) for the benefit of its eligible employees and the employees of
Participating Employers. The FS Plan is a defined contribution, individual account 401(k) plan intended to qualify under Section 401(a) of the Internal Revenue Code. The purpose of the FS Plan is to provide retirement benefits, and at the same
time enable Participants to acquire a stock interest in Alcoa Inc. Alcoa Stock Fund is an employee stock ownership plan, within the meaning of Section 4975(e) of the Code. The assets held in the ESOP must be invested primarily in
employer securities as defined in Code Section 409(l). 
 Effective January 1, 2015, the Plan is hereby amended and restated to
incorporate Plan amendments and new laws and regulations that have come into effect since January 1, 2011, the original effective date of the Plan. The Plan is intended to be construed in accordance with any regulatory guidance issued with
respect to such new laws and regulations. 
 DEFINITIONS 

For the purpose of this Plan, unless a different meaning is plainly required by the context: 

AFFILIATE means any non-corporate business entity or corporate business entity without voting stock, as such, which Alcoa and/or one or
more Subsidiaries control in fact. 
 AFTER-TAX SAVINGS means such portions of the total amounts contributed to the Plan by a
Participant in accordance with Section 2 that are not accorded favorable tax treatment under Section 401(k) of the Code, but not including contributions made by a Participant in excess of the annual limit on 401(k) contributions under Code
Section 402(g) or in excess of the “average deferral percentage limit” of Section 401(k)(3) of the Code. 
 ALCOA
means Alcoa Inc., the parent company of AGF. 
 ALCOA STOCK FUND means the ESOP as described in Section 16(e). 

AUTOMATIC ENROLLMENT or AUTOMATICALLY ENROLLED means the automatic default enrollment in the Plan described in Sections 1(b) and 2(c)
and applicable to Eligible Employees who do not opt out of the Plan. 
 AUTOMATIC PRE-TAX RATE ESCALATION means the feature that is
effective with Automatic Enrollment or that may be elected by a Participant, in which the rate of Payroll Deduction for Pre-Tax Savings is increased until a target Payroll Deduction rate is reached. The Automatic Pre-Tax Rate Escalation will
increase effective April 1 of each year. 
 AUTOMATIC REBALANCING means the feature described in Section 8(d). 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 BENEFICIARY means the recipient or recipients designated by a Participant, in accordance
with Section 22 of the Plan, to receive benefits in the event of the Participant’s death as either a primary beneficiary, or a contingent beneficiary who will receive benefits in the event the primary beneficiary predeceases the
Participant. 
 BENEFITS MANAGEMENT COMMITTEE or COMMITTEE means the administrative committee of one or more persons appointed by the
Board that interprets and administers the Plan in accordance with Section 19. 
 BOARD means the Board of Directors of AGF. 

BROKERAGE ACCOUNT means the investment option whereby a Participant may invest and personally manage investments outside the Core Funds
as described in Section 16(h). 
 BUSINESS DAY means any day on which the Plan Administrator, Designee and New York Stock Exchange is
open for business. 
 CODE means the Internal Revenue Code of 1986, as amended. 

COMPANY STOCK means common stock of Alcoa and any substituted security under Section 16. 

CONTINUOUS SERVICE means, except as modified by the balance of this definition and as otherwise specifically provided in Schedule C
with respect to certain Participant populations, the period of continuous employment with AGF, Alcoa, its Subsidiary or Affiliate, either as a salaried employee or as an hourly-rated employee, commencing with the Participant’s Employment
Commencement Date or Reemployment Commencement Date. Continuous Service terminates on the Participant’s Severance from Service Date. Continuous Service upon reemployment does not include any Continuous Service accrued prior to a termination of
Continuous Service, except as follows: 
 A Participant who incurs a Severance from Service Date and thereafter has a Reemployment
Commencement Date, will have his or her Continuous Service on the Severance from Service Date reinstated if the period between his or her Severance from Service Date and his or her Reemployment Commencement Date is less than the greater of
(a) five years or (b) the aggregate number of years of Continuous Service earned before the Severance from Service Date. 

CORE FUND means any investment vehicle (including the Alcoa Stock Fund and Target Maturity Funds) for Pre-Tax Savings, After-Tax
Savings, Participating Employer Contributions, Discretionary Contributions, Restricted Discretionary Contributions, or Employer Retirement Income Contributions, but excluding the Brokerage Account. The Committee will determine the Core Funds, and
may make changes to the composition of the funds from time to time. 
  

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 CURRENT MARKET VALUE means with respect to any investment allocated to the accounts of any
Participant in the Core Funds, the unitized value of the securities and cash of the investment in the applicable Fund as of a specified date, less any fees provided for in Section 21, valued in accordance with a procedure adopted by the
investment manager for the fund and acceptable to the Benefits Management Committee. 
 DESIGNEE means such entity as may be chosen
from time to time by the Plan Administrator and approved by the Benefits Management Committee to handle certain specified administration functions of the Plan. 

DISCRETIONARY CONTRIBUTIONS means amounts contributed by a Participating Employer as determined under Section 4(a). 

EFFECTIVE DATE with respect to a distribution has the meaning prescribed in Section 13, with respect to a transfer has the meaning
prescribed in Section 9 and with respect to a qualified domestic relations order has the meaning prescribed in Section 14. 

ELIGIBLE COMPENSATION means: (i) the regular base salary and if applicable, the base salary adjustment (where commission payments
constitute all or part of an employee’s remuneration, the commissions actually paid as remuneration during a regular pay period will be used to determine the Eligible Compensation for such employee); (ii) the regular hourly wages and if
applicable: cash cola, regular vacation pay, witness pay, holiday advance pay (for a holiday not worked), bereavement pay, shift differential, jury pay, job upgrades, schedule premium, income adjustments, and wage adjustments which are payable
during such periods as the employee is an Eligible Employee as determined by the Participating Employers. In no event may the amount of Eligible Compensation for any Participant during any Plan Year, for any purposes under this Plan, exceed
$265,000, as adjusted for any Plan Year for cost-of-living increases in accordance with Section 401(a)(17)(B) of the Code applicable to that calendar year. 

ELIGIBLE EMPLOYEE means any person who meets all of the following conditions: 

(a) (1) Is a resident or citizen of the U.S., employed by a Participating Employer at a participating Company (Company Code) and
specified location (Location Code), as indicated in Schedule B (including individuals temporarily assigned to non-US locations); or 

(2) Is not a U.S. resident or citizen, but is employed by a Participating Employer at a participating Company (Company Code) and
specified location (Location Code), as indicated in Schedule B on a long term assignment and has been localized to that location’s payroll and benefits; and 

(b) Is a Full-time or Part-time Employee, and receives regular compensation in the form of: (1) a weekly, semimonthly or monthly
salary, (2) periodic commissions, (3) an hourly wage; and 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 (c) Is not in a unit of employees covered by a collective bargaining agreement, unless
such agreement provides for the application of the Plan to the employees in such unit and does not provide for supplemental unemployment benefits or similar benefits; and 

(d) Is not in a group of employees excluded from coverage under the Plan by the Benefits Management Committee, or the appropriate
governing body of a Participating Employer, which is uniform in application to all employees similarly situated; and 
 (e) Is not a
U. S. resident or citizen who is on the Company’s U.S. expatriate payroll and benefit program; and 
 (f) Is not an agency,
leased, or contract employee (as determined by the Company, without regard to any court, or agency decision determining common-law employment status) or is an individual who is not on the payroll of the Company and receiving a W-2. A “leased
employee” is defined in Section 414(n) of the Code and is excluded from participation in the Plan. (For purposes of this Plan only, any former leased employee, upon becoming an Eligible Employee, will receive Continuous Service credit for
all prior service performed with the recipient Participating Employer as a leased employee prior to becoming an Eligible Employee.) 

(g) Is a Temporary Employee who, in addition to meeting the above described terms and conditions (other than (b)), has at least one
year of Continuous Service. 
 EMPLOYER RETIREMENT INCOME CONTRIBUTIONS (also “ERIC”) means an amount equal to the
percentage of Eligible Compensation specified in Section 5 that is contributed to Eligible Employees hired or rehired on or after March 1, 2006, or as indicated in Schedule B, to the Eligible Employees of a specified location who i)
whether or not citizens of the U.S., transfer from a location outside of the U.S. to a participating U. S. location and is localized, or ii) are not U.S. citizens and were participants in the Global Pension Plan as of December 31, 2008, will
receive ERIC contributions without regard to original date of hire or rehire. For purposes of this paragraph, “localized” means to be paid from a U.S. location payroll. 

Employees employed at a company and location that does not participate in Alcoa Retirement Plan I as of December 31, 2009, who were hired or rehired
prior to March 1, 2006, and who transfer on or after January 1, 2010 to a company and location that receives ERIC under this Plan as indicated in Schedule B, will commence to receive ERIC contributions following the transfer, regardless of
their date of hire. 
 EMPLOYMENT COMMENCEMENT DATE means the date on which an Eligible Employee is first employed by and performs an
Hour of Service for AGF, Alcoa, its Subsidiary or an Affiliate as a Full-Time or Part-Time Employee, or with respect to an individual described in subsection (g) of the definition of Eligible Employee, a Temporary Employee. 

ERISA means the Employee Retirement Income Security Act of 1974 as amended. 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 ESOP or EMPLOYEE STOCK OWNERSHIP PLAN means the Alcoa Stock Fund as described in
Section 16(e). 
 FINANCIAL HARDSHIP means an immediate and heavy financial need which a Participant is not able to meet from
other reasonably available resources. An immediate and heavy financial need includes: 
 (a) Extraordinary medical expenses incurred
by the Participant, the Participant’s spouse, dependents of the Participant, or primary Beneficiary; 
 (b) Purchase, excluding
mortgage payments, of a principal residence for the Participant; 
 (c) Payment of tuition for the next year of post-secondary
education for the Participant, his or her spouse, children , dependents or primary Beneficiary; 
 (d) Expenses necessary to prevent
eviction of the Participant from his principal residence, or foreclosure on the mortgage of the Participant’s principal residence; 

(e) Funeral expenses of a family member or primary Beneficiary; and 

(f) All other expenses that the Internal Revenue Service will accept as an immediate and heavy financial need. 

A withdrawal will be deemed to be necessary to satisfy an immediate and heavy financial need of a Participant if all of the
following requirements are satisfied: 
 (i) The withdrawal is not in excess of the amount of the immediate and heavy
financial need (including taxes on such withdrawal) of the Participant, 
 (ii) The Participant has obtained all
distributions, other than hardship withdrawals, and all nontaxable loans currently available under all plans maintained by the Participating Employer (unless such a loan would contribute to the hardship), 

(iii) The Plan, and all other qualified and non-qualified plans of deferred compensation maintained by all Participating
Employers (other than health and welfare or contributory defined benefit plans), provide that the Participant’s Savings will be suspended for at least 6 months after receipt of the hardship withdrawal, and 

(iv) The Participant may not contribute Pre-Tax Savings to the Plan or make similar contributions to other plans
maintained by the Participating Employer for the following taxable year in excess of the applicable limit under Section 402(g) of the Code for the following taxable year minus the Participant’s Pre-Tax Savings for the taxable year of the
hardship withdrawal. 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 Based upon the foregoing provisions, the Designee determines whether or not a Participant has incurred a
Financial Hardship. 
 FULL-TIME EMPLOYEE means an active employee who works 100 percent of a regular work schedule for the location
where he or she is employed. 
 HOUR OF SERVICE means: 

(a) Each hour for which an employee is paid or entitled to payment for the performance of duties for AGF, Alcoa, its Subsidiary or
Affiliate; 
 (b) Each hour for which an Employee is paid or entitled to payment by AGF, Alcoa, its Subsidiary or Affiliate on
account of a period during which no duties are performed, whether or not the employment relationship has terminated, due to vacation, holiday, illness, incapacity (including disability), layoff, jury duty, military duty, or leave of absence; and

 (c) Each hour for which back pay, irrespective of mitigation of damages, is either awarded or agreed to by AGF, Alcoa, its
Subsidiary or Affiliate, excluding any hour credited under (a) or (b) above, which is credited to the computation period or periods to which the award, agreement or payment pertains, rather than to the computation period in which the
award, agreement or payment is made. 
 INVESTMENT FUND means any Core Fund and the Brokerage Account. 

KEY EMPLOYEE means any employee or former employee (including any deceased employee) who at any time during the Plan Year that includes
the determination date, as defined in Section 416(g)(4)(C) of the Code, was i) an officer of a Participating Employer having annual compensation greater than $170,000 (as adjusted under Section 416(i)(1) of the Code, ii) a five percent
owner of the Participating Employer, or iii) a one percent owner of a Participating Employer having annual compensation of more than $150,000. For this purpose, annual compensation means compensation as defined in Section 415(c)(3) of the Code,
but includes amounts contributed by the Participating Employer pursuant to a salary reduction agreement which are excludable from the Participant’s gross income under Section 125, 402(a), Section 401(h), Section 401(b), and
Section 132(f)(4). 
 LAYOFF or LAID-OFF means the absence from employment due to a reduction of a Participating
Employer’s work force due to lack of work, where it is intended that the Participant will be subject to recall and the Participant has not been placed on a Temporary Layoff. A Layoff ends on the earlier of the effective date of a recall or the
date the Participant’s service terminates in the case where such Layoff has continued for at least twenty-four months calculated from the first day of the Lay Off. 

NORMAL RETIREMENT AGE means the date a Participant attains age 65. 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 PART-TIME EMPLOYEE means an active employee who works at least 50 percent but less than
100 percent of the regular work schedule for the location where he or she is employed. 
 PARTICIPANT means: 

(a) an Eligible Employee who has elected to participate in the Plan in accordance with the provisions of Section 1, or who
receives Employer Retirement Income Contributions, Discretionary Contributions or Restricted Discretionary Contributions, or who is Automatically Enrolled in the Plan. Such a person continues as a Participant so long as he or she has an account
balance in the Plan. Notwithstanding the foregoing, a contractor, agency employee, temporary employee or “leased employee” as defined in Section 414(n) of the Code is not a Participant under the Plan, or 

(b) an Eligible Employee who is employed with a Participating Employer on December 31 of any Plan Year where such Participating
Employer has elected to make a Discretionary Contribution or Restricted Discretionary Contribution for that Plan Year. 
 PARTICIPATING
EMPLOYER means AGF, except as specified hereafter, and any other entity in which Alcoa or one or more Subsidiaries or Affiliates have an ownership interest, and that is authorized by AGF to participate in the Plan and which adopts the Plan by
proper action of its board of directors or other governing body, provided that each said entity agrees to reimburse AGF from time to time upon demand for its proper portion of the expenses and contributions required to carry out the provisions
hereof and of the agreement under which the assets of the Plan are held or managed. Schedule B lists applicable locations of Participating Employers. 

PARTICIPATING EMPLOYER CONTRIBUTIONS means amounts contributed by a Participating Employer as determined under Section 3. 

PARTICIPATION DATE means the date on which an Eligible Employee commences participation in the Plan. 

PAYROLL DEDUCTIONS means the Pre-Tax Savings and After-Tax Savings based on a reduction of the Participants’ Eligible Compensation
for the applicable Payroll Period. 
 PAYROLL PERIOD means the regularly scheduled payroll cycles in which a Participant earns
Eligible Compensation. 
 PERMANENT LAYOFF means an absence from employment due to a reduction of the work force by a Participating
Employer due to lack of work, where it is intended that the Participant will not be subject to recall. A Participant’s Continuous Service for purposes of the Plan will be terminated on the first day of Permanent Layoff. 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 PERMANENT SHUTDOWN means the permanent shutdown, as determined by a Participating
Employer, of a plant, department or substantial portion thereof, of a Participating Employer at which a Participant who is affected thereby is employed. 

PLAN means the Alcoa Retirement Savings Plan for Fastener Systems Employees, effective January 1, 2015, and as may be amended from
time to time. 
 PLAN ADMINISTRATOR means AGF. 

PLAN YEAR means the calendar year. 

PRE-TAX CATCH-UP CONTRIBUTIONS means contributions permitted under Section 414(v) of the Code, as described in Section 2(j)
of the Plan. 
 PRE-TAX SAVINGS means the amount by which a Participant has elected to reduce his or her Eligible Compensation and
defer the receipt thereof in accordance with Section 2 and the contribution of the said amount to the Plan, or an amount by which a Participant’s Eligible Compensation is deferred and contributed to the Plan pursuant to Automatic
Enrollment. 
 PROPERLY RECEIVED means any request to participate, request to change participation in the Plan, request for
suspension of Payroll Deductions, a request for a transfer between investments in accordance with Sections 8 or 9, or a request for a withdrawal in accordance with either Section 10 or 11, or a Beneficiary designation, consent or revocation in
accordance with Section 22, are Properly Received provided it is received by the Plan Administrator or its Designee in accordance with uniform rules established by the Plan Administrator. 

QUALIFIED DEFAULT INVESTMENT ALTERNATIVE or QDIA means the Targeted Maturity Funds to which the Plan may direct the assets of a
Participant’s account in the absence of Participant investment direction. Each Participant’s account will be invested in the appropriate Targeted Maturity Fund based on the Participant’s year of birth. 

REEMPLOYMENT COMMENCEMENT DATE means the date on which a Participant is first reemployed by a Participating Employer following a
Severance from Service Date. 
 RESTRICTED DISCRETIONARY CONTRIBUTIONS means amounts contributed by a Participating Employer as
determined under Section 4(b). 
 RETIREMENT means termination of Continuous Service with rights to a pension other than a
deferred vested pension benefit under a retirement plan of Alcoa and/or a Subsidiary and/or an Affiliate, termination of Continuous Service upon or after attainment of age 55 and completion of 10 years of Continuous Service, or Normal Retirement
Age. 
 ROLLOVER CONTRIBUTION means an eligible rollover distribution as described in Section 402(c)(4) of the Code, or a direct
transfer of an eligible rollover distribution as described in Section 401(a)(31) of the Code (“Direct Rollover”) which is transferred to the Plan pursuant to Section 7. 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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 SAVINGS means the total amount of Pre-Tax Savings and After-Tax Savings contributed to the
Plan in accordance with Section 2. 
 SEVERANCE FROM SERVICE DATE means the date Continuous Service terminates and is the
earliest of: (i) the first date the Eligible Employee quits, retires, is discharged (including Permanent Layoffs), or dies, (ii) the first anniversary of the first date the Eligibile Employee is absent from work due to a Temporary Layoff,
or (iii) the second anniversary of the first date the Eligible Employee is absent from work for any other reason (including a disability). Notwithstanding the foregoing, an employee will not be deemed to have terminated from Continuous Service
until the second anniversary of the employee’s absence, if the absence is due to the pregnancy of the Eligible Employee, the birth of a child of the Eligible Employee or the placement of a child with the Eligible Employee in connection with
adoption proceedings, or for purposes of caring for that child for a period beginning immediately following such birth or placement. The period between the first anniversary and second anniversary of the first day of absence will not constitute
Continuous Service. Severance from Service Date will also mean the date on which a participant ceases employment with AGF, Alcoa or its Subsidiary in connection with a sale of assets or interest in a Participating Employer and commences employment
with the purchaser of such assets or interest, provided there is no transfer to the purchaser of Plan assets and liabilities relating to such participant. 

SUBSIDIARY means a corporation a majority of whose voting stock is owned or controlled by Alcoa and/or one or more other Subsidiaries.

 TARGETED MATURITY FUNDS means the investment vehicles that are pre-mixed funds consisting of varying asset allocations that follow
an investment strategy based on a targeted retirement date. Targeted Maturity Funds are Core Funds. 
 TEMPORARY EMPLOYEE means a
person who does not work on a regular schedule, or works less than fifty percent of the regular hours for the location where he or she is employed, or works fifty percent or more of the regular hours for the location but is hired for a specified
period of time not to exceed twelve month. 
 TEMPORARY LAYOFF means an absence from employment due to a reduction of the work force
by a Participating Employer due to lack of work, where it is intended that the Participant will not be subject to recall or the Participant has been designated as a temporary recall in the Company’s human capital management system (currently,
the Global People System), but where there is an expectation that the Participant may return to work within the calendar year. A Participant’s Continuous Service will be terminated on the first anniversary of the first day of Temporary
Layoff. 
 TOTAL AND PERMANENT DISABILITY means disability by injury or disease which, on the basis of medical evidence satisfactory
to a medical doctor chosen by the Benefits Management Committee, prevents the employee from engaging in any employment with AGF, 

  
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Alcoa Retirement Savings Plan for Fastener Systems Employees 

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Alcoa, a Subsidiary or Affiliate suitable to his or her training and experience and will be permanent and continuous during the remainder of the employee’s life, and the employee is not
otherwise employed by AGF, Alcoa, a Subsidiary or Affiliate. 
 TRUSTEE means the Trustee or Trustees appointed by the Board in
accordance with the provisions of Section 18. 
 U.S. means United States of America. 

GENERAL PROVISIONS 
 SECTION 1.
PARTICIPATION 
 An Eligible Employee participates in the Plan: 

(a) by submitting application or request for participation that is Properly Received, or by receiving Discretionary Contributions,
Restricted Discretionary Contributions, Participating Employer Contributions, or Employer Retirement Income Contributions; or 
 (b)
by being Automatically Enrolled sixty (60) days following Employment Commencement Date or Reemployment Commencement Date, or after an employee employed on a temporary basis becomes an Eligible Employee. 

(c) by being Automatically Enrolled sixty (60) days following the initial participation of a new Company or Location resulting
from an acquisition or restructuring of a business unit. 
 SECTION 2. EMPLOYEE SAVINGS 

(a) An Eligible Employee may elect to pay into the Plan through Payroll Deductions properly authorized by such employee, a whole
percentage of his or her Eligible Compensation in Pre-Tax Savings in an amount equal to one through twenty-five percent (25%), and After-Tax Savings equal to one through ten percent (10%), the aggregate of which cannot be greater than twenty-five
percent (25%). 
 (b) An Eligible Employee subject to Automatic Enrollment will be subject to automatic Payroll Deductions equal to
three percent of Eligible Compensation for any applicable payroll period, which will be contributed to the Plan as Pre-Tax Savings. Absent the Participant’s election of investment funds, such Pre-Tax Savings will be deposited into the
appropriate QDIA, as described in Section 8(a). 
 (c) Payroll Deductions for Pre-Tax Savings made pursuant to Automatic
Enrollment are subject to Automatic Pre-Tax Rate Escalation whereby, providing the Participant has participated in the Plan at least ninety days, the Participant’s Pre-Tax Savings rate will be increased by one percent on each April 1 after
his or her Participation Date until the Pre-Tax Savings rate attains a target rate of six percent of Eligible Compensation. A Participant may 

  
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change the percentage rate in whole percentages up to the maximum permitted by the Plan or opt out of Automatic Pre-Tax Rate Escalation at any time in a manner designated by the Plan
Administrator that is Properly Received. 
 Any Participant may elect to begin or end Automatic Pre-Tax Savings Rate Escalation at any time
in a manner designated by the Plan that is Properly Received. An election to begin Automatic Pre-Tax Saving Rate Escalation shall designate a beginning Pre-Tax Savings rate, a target rate up to the maximum permitted by the Plan, and an annual rate
(in whole percentages) by which the Pre-Tax rate increases until the target rate is attained. 
 (d) Any employee contributions which
have been contributed to a Participant’s account under a qualified defined contribution plan of a Participating Employer which has been merged with this Plan, are credited to the Participant as Pre-Tax and After-Tax Savings Accounts, as
applicable, as determined by the Plan Administrator, and thereafter be treated like Pre-Tax and After-Tax Savings with respect to withdrawals, loans, and investment options under the Plan. Any protected optional form of benefits provided under said
qualified defined contribution plan will be maintained under the Plan. 
 (e) All Participating Employer Contributions and
Discretionary Contributions, and Restricted Discretionary Contributions and Employer Retirement Income Contributions are irrevocable, except that any such contribution which was made by a mistake of fact or conditioned upon qualification of the Plan
or any amendment thereof under Section 401 of the Code or upon the deductibility of the contribution under Section 404 of the Code, will be returned to the Participating Employer within one year after the payment of the contribution made
by mistake, the denial of the qualification or the disallowance of the deduction (to the extent disallowed), whichever is applicable. 

(f) A Participant may change his or her election for Payroll Deductions, effective for the first full Payroll Period following the date
that such request is Properly Received. 
 (g) A Participant may direct that Payroll Deductions for Savings be discontinued beginning
with the first full Payroll Period following the date that such direction is Properly Received. A Participant may direct that such deductions be resumed beginning with the first full Payroll Period following the date that such direction is Properly
Received, except as provided in the definition of Financial Hardship. 
 (h) Payroll Deductions are paid to the Trustee as soon as
practicable, but no later than the period prescribed by the Department of Labor for depositing contributions. 
 (i) Additional
limitations on Savings, Participating Employer Contributions, Discretionary Contributions and Restricted Discretionary Contributions are provided in Appendices A, B and C. 

Notwithstanding the foregoing, in the event it is determined by the Benefits Management Committee or its Designee that for any particular
month the maximum percentage of Eligible Compensation which a Participant may elect to pay into the Plan as Pre-Tax Savings must be 

  
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reduced so as to prevent the actual percentage of Pre-Tax Savings for Participants who are Highly Compensated Employees from exceeding the elected percentage of Pre-Tax Savings of all other
Participants, pursuant to the limitations in the Appendices, the maximum percentage of Pre-Tax Savings for said Highly Compensated Employees may be reduced, for any particular Month to the extent deemed necessary by the Benefits Management Committee
or its designee. The said Participants’ previously elected percentage of After-Tax Savings will not be affected in any manner by a reduction of the maximum percentage of Pre-Tax Savings in accordance with the foregoing. 

(j) An Eligible Employee who meets the requirements listed below may make an election for a Plan Year to defer extra Pre-Tax Catch-Up
Contributions in an amount that equals an annual maximum amount of six thousand dollars ($6,000), or such other amount adjusted for cost-of-living increases as may be provided by the Secretary of the Treasury pursuant to Section 414(v)(2)
(C) of the Code. Eligible Employees who meet the requirements are individuals who i) have attained 50 or will attain age 50 during the applicable Plan Year; ii) are contributing no less than six percent (6%) of Eligible Compensation in
Pre-Tax Savings; and iii) have submitted an election to make Pre-Tax Catch-Up Contributions for applicable Plan Year. 
 (k) A
Participant who’s compensation is suspended due to an absence from employment due to military leave protected by Uniformed Services Employment and Reemployment Rights Act of 1994 (“USERRA”), may upon his or her return to employment
contribute “make up” Pre-Tax Contributions equal to the amount he or she would have contributed except for the absence based upon the Participant’s election on file. Such make up contributions must be paid to the Plan during a period
that does not exceed the lesser of three times the length of time of the military leave or five years, commencing from the date employment is resumed. 

SECTION 3. PARTICIPATING EMPLOYER CONTRIBUTIONS (MATCH) 

Participating Employer Contributions will be allocated under the Plan to the account of those Participants for whom Pre-Tax Savings are paid
into the Plan for such Payroll Period in accordance with Section 2, where the Participating Employer with whom the Participant is actively employed has elected to make such contributions. Beginning with the first Participating Employer
contribution allocated to Participants’ accounts after January 1, 2014, all Participating Employer Contributions will be invested in the same Core Funds elected by the Participant for his or her current Savings (or if none, then in the
QDIA). 
 (a) A Participating Employer may elect to make Participating Employer Contributions of a specific amount for each dollar of
the Participant’s Eligible Compensation he or she contributes to the Plan as Pre-Tax Savings up to six percent of the Participant’s Eligible Compensation. Unless disapproved by the Benefits Management Committee, a Participating
Employer’s election to make or change a Participating Employer Contribution for current and future Plan Years may be made at any time during the Plan Year and continue until changed by the Participating Employer. Schedule B provides a list of
Participating Employers and Participating Employer Contributions. The amount of all such Contributions are contributed on a Payroll Period basis by the Participating Employer out of current income or accumulated earnings. 

  
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 Any employer contributions which have been contributed to a Participant’s account under a
qualified defined contribution plan of a Participating Employer which has been merged with this Plan, are credited to the Participant as Participating Employer Contributions and thereafter be treated like Participating Employer Contributions with
respect to withdrawals, loans, and investment options under the Plan. Any protected optional form of benefits provided under said merged qualified defined contribution plan will be maintained under the Plan. 

SECTION 4. DISCRETIONARY CONTRIBUTIONS 

(a) A Participating Employer for each Plan Year may contribute under the Plan to the account of those Eligible Employees who are
employed with said Participating Employer on the last day of the Plan Year such amounts of Discretionary Contributions as its board of directors or in the case of an Affiliate, the appropriate governing entity determines, unless disapproved by the
Benefits Management Committee. Discretionary Contributions are allocated to Eligible Employees based on either uniform dollar amounts or whole or partial percentages of Eligible Compensation. A Participating Employer may elect to make one
Discretionary Contribution for any Plan Year on or before December 31 of said Plan Year and may direct, but is not obligated to direct, the Trustee to promptly invest such amount in the Alcoa Stock Fund. 

(b) A Participating Employer for each Plan Year may contribute under the plan to the account of those Eligible Employees who are
employed with said Participating Employer on the last day of the Plan Year, Restricted Discretionary Contributions in an amount determined by its board of directors or in the case of an Affiliate, the appropriate governing entity, unless disapproved
by the Benefits Management Committee. Restricted Discretionary Contributions will be allocated to Eligible Employees based on either uniform dollar amounts or whole or partial percentages of Eligible Compensation. A Participating Employer may elect
to make one Restricted Discretionary Contribution for any Plan Year on or before December 31 of the Plan Year. The Restricted Discretionary Contribution will be paid to the Trustee no later than the date fixed by law for the filing of the
Participating Employer’s federal income tax return for the year for which the contribution is made, including any extensions of time granted by the Internal Revenue Service for filing the return. The Participating employer may direct, but is
not obligated to direct, the Trustee to promptly invest such amount in the Alcoa Stock Fund; otherwise, Restricted Discretionary Contributions will be invested in accordance with the provisions of Section 8(b). 

Effective as of June 27, 2011, a nonrecurring Discretionary Contribution in the amount of $500 will be made on behalf of each Participant
employed by Valley Todeco Inc. (Company 675) at Valley Todeco, CA (LOC VTC). The contribution will be invested in the applicable QDIA, and may be transferred to any elected Core Fund at any time thereafter. 

(c) An Eligible Employee who incurs an absence due to military leave protected by USERRA and eligible to receive Discretionary or
Restricted Discretionary Contributions will receive those contributions based on the Eligible Compensation that would have been received had the individual remained actively employed during the period of military leave. 

  
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 SECTION 5. EMPLOYER RETIREMENT INCOME CONTRIBUTIONS (ERIC) 

Employer Retirement Income Contributions of three percent of Eligible Compensation will be made to the accounts of Participants with an
Employment Commencement Date or Reemployment Commencement Date occurring on or after March 1, 2006, on a Payroll Period basis. Notwithstanding the foregoing, Eligible Employees of certain locations designated in Schedule B will receive Employer
Retirement Income Contributions as of the date indicated, regardless of the date of their Employment Commencement Date or Reemployment Commencement Date. 

An Eligible Employee who incurs an absence due to military leave protected by USERRA and eligible to receive Employer Retirement Income
Contributions (“ERIC) will receive those contributions based on the Eligible Compensation that would have been received had the individual remained actively employed during the period of military leave. 

Withdrawals of Employer Retirement Income Contributions are permitted by Participants who have attained age 59
 1⁄2. 
 Any person, i) whether or not a citizen
of the U.S., who transfers from a location outside of the U.S. to a participating U.S. location, or ii) who is not a citizen of the U.S. and was a participant in the Global Pension Plan as of December 31, 2008 and transferred from a location
outside of the U.S. to a participating U.S. location, will be eligible for Employer Retirement Income Contributions, regardless of the individuals date of hire. 

SECTION 6. NONFORFEITURE OF PARTICIPATING EMPLOYER CONTRIBUTIONS, DISCRETIONARY CONTRIBUTIONS RESTRICTED DISCRETIONARY CONTRIBUTIONS, AND EMLOYER
RETIREMENT INCOME CONTRIBUTIONS 
 All Participating Employer Contributions, Discretionary Contributions, Restricted Discretionary
Contributions, and Employer Retirement Income Contribution, and any investment earnings attributable thereto held in a Participant’s account are nonforfeitable and not subject to divestment. 

SECTION 7. ROLLOVER CONTRIBUTIONS 
 An
Eligible Employee of a Participating Employer who is or may become a Participant may, unless disapproved under objective procedures established by the Benefits Management Committee, make a Rollover Contribution to the Plan. An Eligible
Employee’s Rollover Contribution is credited to his or her account and thereafter treated like the Participant’s Pre-Tax Savings with respect to withdrawals, loans and investment options under the Plan. The Plan does not accept Roth
rollovers. 

  
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 SECTION 8. INVESTMENTS 

(a) Savings and Employer Retirement Income Contributions. Pre-Tax Savings (including Rollover Contributions), After-Tax Savings,
and Employer Retirement Income Contributions will be invested, at the election of the Participant, in any of the Core Funds in one percent increments. Pre-Tax Savings of any Participant who is Automatically Enrolled and Employer Retirement Income
Contributions made to the account of a Participant who has not made investment election will be contributed to the appropriate QDIA fund, based on the Participant’s date of birth. 

A Participant may change his or her current investment election or transfer assets deposited by the Plan into a QDIA fund any day of the Plan
Year, to be effective for the next following Payroll Period, within the limitations otherwise provided in this Plan, by directing the Plan Administrator or its Designee to make such change which direction is Properly Received. 

(b) Participating Employer Contributions, Discretionary Contributions and Restricted Discretionary Contributions. All
Participating Employer Contributions will be invested in the same Core Funds elected by the Participant for his or her current Savings (or if none, then in the QDIA). Discretionary Contributions, and Restricted Discretionary Contributions may be
invested in the Alcoa Stock Fund if directed by the Participating Employer, subject to Section 9, or otherwise invested in the same Core Funds elected by the Participant for his or her current Savings (or if none, then in the QDIA). 

(c) Brokerage Account. A portion of Pre-Tax or After Tax Savings, and Participating Employer Contributions, Discretionary
Contributions, Restricted Discretionary Contributions, or Employer Retirement Income Contributions subject to transfer as provided in Section 9, or any other amounts invested in the Core Funds may be transferred in amounts of one thousand
dollars ($1,000) or more and reallocated to a Brokerage Account, a self-directed brokerage account that allows a Participant to select and personally manage investment options not otherwise available under the Plan, in accordance with the provisions
of Section 16. Any amounts to be withdrawn, loaned or distributed from a Brokerage Account must be first transferred back to the Core Funds, as described in Section 16(h). 

(d) Automatic Rebalancing of Investments. A Participant may elect to have his or her account balance automatically rebalanced,
or readjusted, at ninety-day intervals, to equal the percentage(s) directed by the Participant for investing such account balance in any Core Fund(s). The Participant may cancel Automatic Rebalancing at any time in a manner designated by the Plan
Administrator that is Properly Received. 
 SECTION 9. TRANSFERS BETWEEN INVESTMENTS 

(a) Transfers of Savings, Participating Employer, Discretionary, Restricted Discretionary and Employer Retirement Income
Contributions. A Participant may elect to 

  
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transfer in whole percentage increments or specified dollar amounts all or part of the Current Market Value of the Participants’ Pre-Tax Savings, After Tax Savings, Participating Employer,
Discretionary, Restricted Discretionary and Employer Retirement Income Contributions subject to the following: 
 (1)
transfers from any one or more Core Funds to the Brokerage Account must be made in amounts of one thousand dollars ($1,000) or more; 

(2) transfers may be made on a daily basis; 

( 3) investment Fund transfers do not constitute a change in the Participant’s current investment election; and 

(4) transfer provisions may be subject to restrictions imposed by mutual fund companies underlying the Core Funds. 

(b) Effective Date of Transfer. The effective date of any transfer will be the date for which the appropriate direction to the
Plan Administrator or its Designee has been Properly Received. 
 (c) Value of Transfer. The Current Market Value of Savings,
Participating Employer Contributions, Discretionary Contributions, Restricted Discretionary Contributions, and Employer Retirement Income Contributions to be transferred into or out of an Investment Fund are determined in accordance with the value
of the Investment Fund at the close of business of the Business Day on the Effective Date. 
 SECTION 10. WITHDRAWALS DURING EMPLOYMENT 

Effective with respect to the Current Market Value of Pre-Tax Savings, Discretionary Contributions, Restricted Discretionary Contributions, and
Participating Employer Contributions made to the Plan or a prior plan from which the account of a Participant has been transferred after on or after January 1, 2011, withdrawals during employment are permitted upon attainment by the Participant
of age 59  1⁄2. Notwithstanding, withdrawals are permitted during employment prior to attainment of age 59  1⁄2 with respect to the Current Market Value of any Pre-Tax Savings transferred to this Plan from a prior plan, provided the following conditions are met: 

 

	 	i)	the Pre-Tax Savings were contributed to the prior plan before January 1, 2011; and 

  

	 	ii)	the Plan Administrator or Designee has determined that the Participant has suffered a Financial Hardship. 

 A
Participant may withdraw the Current Market Value of After-Tax Savings at any time (subject to a $250.00 minimum). A Participant who has attained three years of Plan participation may voluntarily withdraw all or a portion (subject to a $250.00
minimum) of the Current Market Value of Participating Employer Contributions and Discretionary Contributions made prior to January 1, 2011, to a prior plan from which the Participant has been transferred. 

  
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 SECTION 11. DISTRIBUTIONS UPON TERMINATION OF EMPLOYMENT 

(a) A Participant whose Continuous Service terminates is eligible to receive as a distribution the Current Market Value of all Savings,
Participating Employer Contributions, Discretionary Contributions, Restricted Discretionary Contributions, and Employer Retirement Income Contributions made to the Participant’s accounts. In the event a Participant who has terminated employment
received a total distribution of the Current Market Value of his or her account under the Plan has a Reemployment Commencement Date, he or she will not be permitted to repay the distributed amount other than as a Rollover Contribution from an
eligible retirement plan described in Sections 402(c)(4) and 401(a)(31) of the Code, as provided in Section 7. 
 (b) Direct
Rollovers. 
 (i) Notwithstanding any provision of the Plan to the contrary that would otherwise limit a distributee’s election
under this subsection, a distributee may elect, at the time and in the manner prescribed by the Plan Administrator, to have any portion of an eligible rollover distribution paid directly to an eligible retirement plan specified by the distributee in
a direct rollover. 
 (ii) Definitions: 

(1) Eligible rollover distribution: An eligible rollover distribution means any distribution to an employee of all or any portion of the
balance to the credit of the employee in the Plan, and as otherwise described in this subsection (1). An eligible rollover distribution does not include any distribution that is one of a series of substantially equal periodic payments (not less
frequently than annually) made for the life (or life expectancy) of the distributee or the joint lives (or joint life expectancies) of the distributee’s designated Beneficiary; or for a specified period of ten years or more; any distribution to
the extent such distribution is required under Section 401(a)(9) of the Code; and any amount distributed on account of hardship. 

(2) Eligible Retirement Plan: An eligible retirement plan is an individual retirement account or individual retirement annuity described in
Sections 408(a) and 408(b) of the Code; a qualified trust described in Section 401(a) of the Code that accepts the distributee’s eligible rollover distribution; an annuity plan or contract described in Sections 403(a) and 403(b) of the
Code; or an eligible plan under Section 457(b) of the Code which is maintained by a state, political subdivision of a state, or any agency or instrumentality of a state or political subdivision of a state that agrees to separately account for
amounts transferred into such plan from this plan. The definition of eligible retirement plan will also apply in the case of a distribution to a surviving spouse of a Participant or the spouse or former spouse who is the alternate payee under a
qualified domestic relations order as defined in Section 414(p) of the Code. With respect to an eligible rollover distribution to a Participant’s nonspouse Beneficiary, 

  
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an eligible retirement plan is an individual retirement account or annuity described in Sections 408(a) and 408(b) of the Code established for the purpose of receiving such distribution, and
identifying the deceased Participant and Beneficiary. 
 (3) Distributee: A distributee includes an employee or former employee. In
addition, the employee’s or former employee’s surviving spouse and the employee’s or former employee’s spouse or former spouse who is an alternate payee under a qualified domestic relations order, as defined in
Section 414(p) of the Code, are distributees with regard to the interest of the spouse or former spouse. A distributee includes the employee’s or former employee’s nonspouse Beneficiary, provided the transfer of the eligible rollover
distribution is made as described in paragraph (4) below. 
 (4) Direct Rollover: A direct rollover is a payment by the Plan to the
eligible retirement plan specified by the distributee. 
 SECTION 12. PAYMENT OF DISTRIBUTIONS UPON TERMINATION OF EMPLOYMENT 

(a) Subject to the following provisions of this Section, payment to a Participant or Beneficiary of the Current Market Value of all
Savings, Participating Employer Contributions, Restricted Discretionary Contributions, and Employer Retirement Income Contributions in the Participant’s account from any Investment Fund, other than the Alcoa Stock Fund, upon the
Participant’s termination of Continuous Service is made in cash. All amounts held in the Alcoa Stock Fund at the time of the Participant’s termination of Continuous Service are paid in cash or Company Stock. Such payment will be made in
accordance with the following rules: 
 (i) If the Current Market Value of all of the Participant’s vested account balances (not
including Rollover Contributions) in all qualified defined contribution plans of Alcoa, the Subsidiaries and Affiliates is less than one thousand dollars ($1,000), then a total distribution of all of the Participant’s vested account balances
will be made to the Participant at a time determined by the Plan. If the Current Market Value of all of the Participant’s vested account balances (not including Rollover Contributions) in all qualified defined contribution plans of Alcoa, the
Subsidiaries and Affiliates (i) is greater than $1,000 but less than $5,000, the distribution will be paid in a direct rollover to an individual retirement account designated by the Benefits Management Committee unless the Participant, or
Beneficiary if applicable, elects to have such distribution paid directly to an eligible retirement plan specified by the Participant or Beneficiary in a direct rollover or to receive the distribution directly in cash. The value of any delisted
stock that is no longer publicly traded but that is held in the Participant’s Brokerage Account shall not be considered for purposes of the preceding valuation. Any such delisted stock shall be distributed in-kind where the value of the
Participant’s vested account balances (not including Rollover Contributions) in all qualified defined contribution plans of Alcoa, the Subsidiaries and Affiliates is less than five thousand dollars ($5,000), in a direct rollover to an
individual retirement account designated by the Benefits Management Committee. Upon such distribution of de-listed stock, the amounts distributed will be reported for income tax purposes using reasonable methods available at such time and determined
by the Plan. 

  
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 (ii) If the Current Market Value of all of the Participant’s vested account balances in all
defined contribution plans of Alcoa, the Subsidiaries and Affiliates exceeds five thousand dollars ($5,000), the distribution is made upon the consent of the Participant, or surviving spouse if applicable, and if no consent is given and no claim for
benefits has been made, such distribution is made in total upon the later of December 31, 2015, or his or her attainment of age 69. Notwithstanding the foregoing, if a Participant attains age 70 prior to December 31, 2015, such
distribution shall be made in total upon such Participant’s attainment of age 70. Prior to the distribution of the total Current Market Value of the Participant’s total account balance, the Participant, or the Beneficiary in the case of a
Participant who dies with an account balance in the Plan, may request four partial distributions (subject to a $250.00 minimum) during each Plan Year in which the account balance is maintained in the Plan. Notwithstanding the foregoing, in the event
that a claim for benefits is made, a distribution is made no later than the 60th day after the latest of the last day of the Plan Year in which occurs: (1) the date on which the Participant attains the earlier of age 65, (2) occurs the
tenth anniversary of the year in which the Participant commenced participation in the Plan, or (3) the Participant terminates his or her service with the Participating Employer. 

(iii) If a distribution is one to which Sections 401(a)(11) and 417 of the Code do not apply, such distribution may commence less than 30 days
after the notice required under Section 1.411(a)-11(c) of the Income Tax Regulations is given, provided that: 
 a. the
Plan Administrator clearly informs the Participant that the Participant has a right to a period of at least 30 days after receiving the notice to consider the decision of whether or not to elect a distribution (and, if applicable a particular
distribution option), and 
 b. the Participant, after receiving the notice, affirmatively elects a distribution. 

(iv) If the Participant dies with an account balance in the Plan, the entire interest of the Participant will be distributed not later than 5
years after the death of the Participant. 
 (b) Upon any distribution of Company Stock from the Alcoa Stock Fund, the Trustee
delivers to the recipient a certificate representing the number of whole shares of Company Stock being distributed and cash equal to the Current Market Value on the Effective Date of distribution of any fractional interest in a share being
distributed. With respect to any shares of Company Stock which are to be sold for the account of the recipient, the Trustee may, at its option (1) purchase such shares for Plan purposes at the Current Market Value on the Effective Date of
distribution, or (2) sell such shares on the open market for the account of the recipient. 
 (c) Notwithstanding the foregoing
provisions of this Section, distribution of a Participant’s account balances commences the April 1 next following the calendar year in which the Participant attains age 70-1/2 years after January 1, 1988 and in accordance with
Section 13(b). 

  
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 (d) Notwithstanding the foregoing, if a Participant is reemployed by a Participating
Employer, then distribution of his or her account balances other than minimum required distributions under Section 401(a)(9) of the Code, if any, payable to him or her during the period of his or her reemployment is suspended until his or her
subsequent termination from employment. Upon his or her subsequent termination from employment, the Participant’s account balances are paid in accordance with the foregoing provisions of this Section 12. 

(e) Notwithstanding paragraphs (a) and (b) above, in the event that any qualified defined contribution plan is merged with
this Plan or this Plan is the surviving plan with respect to any assets of Participants of a merging plan which are transferred to this Plan, any distribution options contained in the merging plan which are not contained in this Plan may be
continued to be distribution options available to the said Participant of the merging plan for distribution of his or her account, in accordance with Section 411(d)(6) of the Code. 

SECTION 13. GENERAL PROVISIONS WITH RESPECT TO WITHDRAWALS 

(a) Effective Date of Withdrawal. The Effective Date of any withdrawal from the Plan is the Business Day such request for
withdrawal is Properly Received by the Plan Administrator or its Designee. 
 (b) Distribution Limitations. Distribution of
all amounts payable under the Plan to a Participant commences: 
 (i) Not later than (1) the required distribution dates
or (2) the required distribution date, without violating Treasury regulations, if any, over the life of the Participant or over the lives of the Participant and a Beneficiary, or over a period not extending beyond the life expectancy of the
Participant and a Beneficiary. 
 (ii) If distribution of the Participant’s interest in the Plan has begun in accordance
with paragraph (i)(2) and the Participant dies before his or her entire interest is distributed, the Participant’s remaining interest in the Plan will be distributed at least as rapidly as under the method of distribution stated under paragraph
(i)(2) above being used on the date of the Participant’s death. If the Participant dies before the distribution of his or her interest in the Plan has begun in accordance with paragraph (i)(2), the entire interest of the Participant will be
distributed not later than five years after the death of the Participant. 
 For purposes of this paragraph (b), the “required
distribution date” means the date prescribed by Treasury Regulations, as amended from time to time, which effective January 1, 1988, is April 1 of the calendar year following the calendar year in which the Participant attains age
70-1/2. 
 For the purposes of this paragraph (b), any amount paid to a minor child is treated as if it had been paid to the surviving
spouse if such amount will become payable to the surviving spouse upon such child reaching majority or any other designated event as may be permitted by Treasury Regulations, if any. 

  
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 (c) Appendix D, Minimum Distribution Requirements, provides the Plan provisions to comply
with Section 401(a)(9) of the Code and Treasury Regulations §1.401(a)(9)-2 through -9, as applicable, relating to required minimum distributions. 

SECTION 14. NONASSIGNABILITY 
 Except as
required under ERISA, no right or interest, of any Participant or Beneficiary in the Plan or in such Participant’s accounts is (a) assignable or transferable or subject to any lien in whole or in part, either directly or by operation of
law or otherwise, including, but not by way of limitation, alienation, execution, levy, garnishment, attachment, pledge, bankruptcy or in any other manner, other than a transfer as a result of death or mental incompetence, or (b) liable for, or
subject to, any obligation or liability of such Participant or Beneficiary. Such portions of the Savings, Participating Employer Contributions, Discretionary Contributions, Restricted Discretionary Contributions, and Employer Retirement Income
Contributions in the account of a Participant as are payable to another in accordance with the provisions of a “qualified domestic relations order,” as defined in Section 414(p) of the Code and any applicable regulations thereunder,
are distributed to the party designated in and in accordance with said order. The Effective Date of withdrawal for any such distribution is the first Business Day following the Plan Administrator’s determination that the said order is in
compliance with Section 414(p) of the Code and any applicable regulations thereunder and such distribution is made as soon as administratively practical thereafter. The Plan Administrator or Designee has promulgated procedures to determine
whether a domestic relations order is a qualified domestic relations order. The procedures will be provided to a participant or alternate payee upon written request, or upon receipt of the domestic relations order by the Plan Administrator or
Designee. 
 SECTION 15. EXTENT OF PARTICIPANT’S RIGHTS 

(a) General. No person has any interest in or right to any part of the assets held under the Plan or the income thereon, except
as and to the extent expressly provided in the Plan. 
 At the time of withdrawal by a Participant or Beneficiary he or she will receive
shares or cash. There is no guarantee that the Current Market Value of any investment will be equal to or greater than the amount of the Participant’s Savings therein. This Plan is designed to comply with and operate under Section 404(c)
of ERISA. A Participant and his or her Beneficiaries assume all risk in connection with any decrease in the value of any investments allocated to such Participant’s account. For purposes of Section 404(c)(1) of ERISA, in the absence of
Participant or Beneficiary investment direction, a Participant or Beneficiary shall be treated as having exercised control over the assets invested in any investment which qualifies as a QDIA in accordance with Section 404(c)(5) of ERISA and
the regulations promulgated thereunder. 
 The Plan does not and should not be construed as conferring any rights upon any person for a
continuation of employment, nor does it interfere with the rights of Alcoa or any Subsidiary or Affiliate to terminate the employment of any person or to take any personnel action affecting such person without regard to the effect which such action
might have upon such person or his or her Beneficiaries as a prospective recipient of benefits under the Plan. 

  
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 (b) Military Service. Notwithstanding any provision of this Plan to the contrary,
contributions, benefits and service credit with respect to qualified military service will be provided in accordance with Section 414(u) of the Internal Revenue Code. 

SECTION 16. MANAGEMENT OF FUNDS 
 (a)
General. Savings, Participating Employer Contributions, Discretionary Contributions, Restricted Discretionary Contributions, and Employer Retirement Income Contributions paid to the Trustee are invested as provided in the Plan. 

(b) Trustees and Investment Managers. The Board or its designee has the responsibility to appoint, review the performance of,
and remove where deemed appropriate, one or more Trustees, and one or more investment managers each of which is a bank, insurance company or other investment adviser qualified under Section 3(38) of ERISA. The duties of each Trustee and
manager, to the extent not set forth in the Plan, are set forth in a trust agreement or other written documents approved by the Board or its designee. Except as otherwise provided in such documents or in the Plan, each such investment manager has
sole investment control and management responsibility with respect to those assets of the Plan for which it is designated the investment manager. The Board may delegate its authority to appoint an investment manager, to remove an investment manager,
to approve and direct the execution by the proper officer or officers of AGF of amendments to agreements with any investment manager and to review the performance of any such managers. Such delegation also includes the authority to approve written
documents setting forth the duties of any manager and to direct the execution of investment management agreements by the proper officer or officers of AGF. No Trustee has any investment responsibility for any assets which are subject to the
investment control of another investment manager and as to such assets it only has custodial duties if it is the custodian. 
 (c)
Designation of Investment Strategy. The Board may from time to time designate, as to part or all of the assets of the Plan, that a separate fund or funds be established. Except as otherwise provided in the Plan, as to each such separate
fund the Board or its designee may specify the investment strategy to be employed and the investment manager is thereupon relieved of responsibility for assuring that the specified investment strategy creates suitable diversification of the overall
assets of the Plan, provided that such investment manager has followed such specifications. 
 (d) (1) Acquisition of Fixed
Income Investments by the Trustee. The Trustee will enter into investment arrangements with insurance companies, banks or money managers, as directed by an investment manager duly appointed by the Board or its designee for the Fixed Income
Fund. The Trustee will invest all Savings and other amounts to be invested in the Fixed Income Fund in accordance with such directions. 

(2) Accounting for Participant’s Accounts. Participants’ investments in the Fixed Income Fund are accounted for on a
unit basis. The Trustee allocates to the accounts of each Participant such units in the Fixed Income Fund as may be acquired with funds (if any) in such Participant’s accounts to be invested therein. Such allocations will be made in a uniform
manner as determined by the Benefits Management Committee. Transfers and withdrawals are valued based on the Current Market Value per unit on the Effective Date of the transfer or withdrawal. 

  
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 (e) (1) Acquisition of Company Stock by Trustee. The Savings, Participating
Employer Contributions, Discretionary Contributions, Restricted Discretionary Contributions, and Employer Retirement Income Contributions to be invested in the Alcoa Stock Fund are used by the Trustee to purchase from time to time shares of Company
Stock (i) from Alcoa, at the Current Market Value thereof, or (ii) to the extent Alcoa does make shares available for purchase by the Trustee for such purpose, on the open market, unless Alcoa otherwise directs, or (iii) by the
exercise of warrants or rights as provided in this Section. The Trustee, to the extent reasonable, invests any cash held in the fund in cash equivalents (including commercial paper). The Trustee also holds for the purpose of allocation to the
accounts of individual Participants as hereinafter provided (i) shares of such stock which the Trustee has acquired upon withdrawal by a Participant, and (ii) shares of such stock which the Trustee has acquired pursuant to
Participants’ elections to transfer investments under the provisions of Section 9. All shares of such stock purchased by the Trustee are carried in the accounts of the Trustee at the actual cost thereof, including any taxes, commissions,
etc. which are not paid by the Participating Employer, incident to the purchase except that shares acquired upon the exercise of warrants or rights are carried at the Current Market Value of such shares on the date of such exercise. 

(2) Allocation of Stock to Participants’ Accounts. Participants’ investments in the Alcoa Stock Fund are accounted for
on a unit basis. The Trustee allocates to the accounts of each Participant such units in the Alcoa Stock Fund as may be acquired with funds (if any) in such Participants’ accounts to be invested therein. Such allocations are made in a uniform
manner as determined by the Benefits Management Committee. Transfers and withdrawals are valued based on the Current Market Value per unit on the Effective Date of the transfer or withdrawal. 

(3) Allocation of Dividends to Participants’ Accounts. In valuing the units, dividends are accounted for on the date the
Board declares the dividend. Once received, dividends are invested in the Alcoa Stock Fund. A Participant may elect to receive an annual distribution of the dividends posted to their account during the Plan Year. Such election must be made prior to
the last dividend record date in the Plan Year, and distribution will be made as soon as administratively practical following the date the final dividends are posted to the Participant’s account. Distribution will be paid in a lump sum from the
Alcoa Stock Fund. To the extent the Participant’s account balance in the Alcoa Stock Fund is insufficient to pay the dividends, the balance of the distribution will be paid pro-rata from the Participant’s other Core Fund investments. 

(4) Warrants & Purchase Rights. A Participant has no right of request, direction or demand upon the Trustee to exercise
in his or her behalf warrants or rights to purchase shares of common stock or other securities of Alcoa, except as otherwise determined by the Board. The Trustee, in its discretion, may exercise or sell any warrants or rights to purchase shares of
Company Stock appertaining to shares of such stock held by the Trustee and may sell any warrants or rights to purchase other securities of Alcoa appertaining to shares of such stock held by the Trustee. 

  
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 (5) Stock Splits & Dividends. Shares of Company Stock received by the
Trustee by reason of a stock split or stock dividend become part of the Alcoa Stock Fund. 
 (6) Voting. The Trustee exercises
its voting rights in accordance with written directions of each Participant with respect to at least the number of whole shares of Company Stock held by it in the Participants’ accounts on the record date for voting. With respect to all other
shares of Company Stock held by the Trustee on the record date for voting (the “Other Shares”), including but not limited to, (i) fractional shares in the Participants’ accounts (if they are not subject to direct voting),
(ii) shares for which it has not received written directions from any Participant, and (iii) any shares which have not yet been allocated to Participants’ accounts, the Trustee exercises its voting rights in the same proportion (for,
against, abstain and so on) on each matter as it exercises its voting rights with respect to shares of Company Stock for which voting directions were received from all participants in all plans which participate in the Alcoa Stock Fund. 

(f) (1) Acquisition of Other Investments by Trustee. Alcoa has and in the future will enter into investment arrangements
with various investment managers. Any such arrangements must be approved by the Benefits Management Committee. Expenses incurred in connection with the purchase or sale of securities by the investment manager are paid from the applicable Investment
Fund. 
 (2) Accounting for Participant’s Accounts. Participants’ investments in the Core Funds are accounted for on
a unit basis. The Trustee allocates to the accounts of each Participant such units in each of the Core Funds as may be acquired with funds (if any) in such Participant’s accounts to be invested therein. Such allocations will be made in a
uniform manner as determined by the Benefits Management Committee. Transfers and withdrawals are valued based on the Current Market Value per unit on the Effective Date of the transfer or withdrawal. 

(g) Transition Provision. Pending investment under an arrangement established pursuant to this Section and pending distribution
to Participants following withdrawal from such an arrangement, cash is invested by the Trustee in short-term fixed income securities or cash equivalents (including commercial paper) and the value of such securities or cash equivalents is allocated
to the accounts of Participants in an equitable manner determined by the Benefits Management Committee. 
 (h) Brokerage Account.
Participant’s have the right to invest and personally manage investments outside of the Core Funds by investing through the Brokerage Account offered by a broker selected by the Plan (“Broker”). Investment options through the
Brokerage Account are mutual funds (other than those already available as Core Funds), any taxable equity or fixed income security publicly traded in a U.S. security market (including American Depository Receipts), and money market funds. Pre-Tax
Savings, After-Tax Savings, Rollover Contributions, Participating Employer Contributions, Discretionary Contributions Restricted Discretionary Contributions, and Employer Retirement Income Contributions that are subject to


  
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transfer as provided in Section 9, may not be directly invested in the Brokerage Account, nor may withdrawals, distributions or loans be made directly from the Brokerage Account. Such
transactions must be processed through the Core Funds. 
 (1) Restrictions of Trading in the Brokerage Account. Certain
restrictions apply to investment vehicles that may be available through the Brokerage Account. Specifically, the following investments are not available through the Brokerage Account: Alcoa company stock (common or preferred) and bonds; funds
currently available in the Core Funds; tax-free funds; securities of publicly traded limited partnerships; options contracts; purchase on short sales, futures, precious metals, and currencies; real estate (other than funds); annuities; life
insurance policies; collectibles; commodities; foreign stocks (not American Depository Receipt); and margin trading and trade-away trades that are placed by another broker and settle with the Broker. 

(2) Trading within the Brokerage Account. Investment purchases in the Brokerage Account may be made after such amounts are
transferred from the Participant’s Core Fund accounts. Transfers from Core Funds may be made as provided in Section 9. Transferred funds will be held in the Broker’s money market fund until the Participant’s buy orders are
received by the Broker. Trades may be subject to initial and subsequent investment minimums required by a mutual fund. 
 Transfers are made
out of the Brokerage Account and into the Core Funds from the Schwab Money Market Fund. If there are insufficient funds to make the requested transfer, the participant must submit a sell order with Schwab. The proceeds of securities sold will be
invested automatically in the Broker’s money market fund and will be subsequently transferred out of the Brokerage Account to the Core Funds as directed by the Participant. 

(3) Expenses Incurred by Trading and Voting. The Broker’s standard commission schedule will be deducted from the Brokerage
Account of the Participant who initiates the trades, and any other fees and expenses incurred through the Brokerage Account will be paid directly by the Participant. 

The Broker will execute proxies for any securities held in the Brokerage Account accounts in accordance with written directions of any
Participant. 
 OTHER PROVISIONS OF THE PLAN 

SECTION 17. LOANS 
 (a) A Participant may
borrow a proportion of the Current Market Value of his or her Savings, and the Current Market Value of his or her Participating Employer and Discretionary Contributions that were contributed to a prior plan before January 1, 2011 and
transferred to this Plan, and which are eligible for transfer under Section 9 of this Plan (“Eligible Loan Account Balance”). 

  
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 A Participant may not borrow Participating Employer Contributions, Discretionary Contributions,
Restricted Discretionary Contributions or Employer Retirement Income Contributions made to this Plan, on or after January 1, 2011, or investment gains thereon. 

A Participant shall pay a $100 processing fee, or such other amount as may be designated by the Plan Administrator, for each loan request. The
fee will be included in the loan amount, subject to the limitations of this Section 17, and deducted prior to distribution of the loan. 

(b) A loan to a Participant, when added to the balance of any other outstanding loans the Participant has under the Plan, cannot exceed
the lesser of: 
 (1) $50,000 reduced to the extent of the highest outstanding loan balance of the Participant’s loans
outstanding during the 365 day period immediately preceding the date on which the loan is made; or 
 (2) 50% of the sum of
the Participant’s (A) Eligible Loan Account Balance, plus (B) Restricted Discretionary Contributions and vested portion of Employer Retirement Income Contributions balances. 

A Participant may refinance any general purpose loan for any reason at any time (but only once in a twelve-month period), as may be permitted
under the Code or ERISA. 
 (c) Each loan to a Participant is secured by a promissory note under which the Participant pledges and
grants the Trustee an interest in the Participant’s Eligible Loan Account Balance to the extent of the unpaid loan. 
 (d) All
loans to Participants are treated as investments of plan assets in their respective accounts. All principal and interest associated with a Participant’s repayment of a loan are credited to his or her Plan account. 

(e) The Plan Administrator has developed a procedure in accordance with the Code and ERISA under which such loans from the Plan will be
made available to Participants, which procedure has been approved by the Benefits Management Committee. 
 (f) Loan repayments will
be suspended under this Plan during a period of military service as permitted under Section 414(u)(4) of the Internal Revenue Code and the regulations promulgated under Section72(p) of the Code. Upon the Participant’s return to active
employment, loan repayments will resume and the period of repayment extended in direct proportion of the Participant’s period of absence for military leave. 

SECTION 18. TRUST 
 All assets of the Plan
are held in trust for the Plan, except as otherwise permitted by applicable law. Alcoa has entered into a trust agreement with a national banking association which acts as Trustee under the Plan. The Alcoa Board of Directors or its designee may,
from time to time, amend such trust agreement (subject to its terms), remove such Trustee or any Successor Trustee and upon removal or resignation of a Trustee, appoint a Successor Trustee. 

  
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 SECTION 19. ADMINISTRATION 

(a) Duties of Plan Administrator. The Plan Administrator or its Designee are responsible for the preparation and the filing with
governmental agencies or the furnishing to Participants and Beneficiaries, of all summaries, descriptions, annual and other reports, notices and other documents and information which are required to be so prepared and filed or furnished under ERISA
or the Code, retain appropriate records and also have all of the other responsibilities and duties of the administrator of the Plan as set forth in ERISA, except as otherwise provided in the Plan. Each Participating Employer by whom a Participant is
employed furnishes to the Plan Administrator or its Designee any records required for the foregoing. 
 (b) The Benefits Management
Committee. Except as provided in Section 16 and in paragraph (a) of this Section, the complete authority to control and manage the operation and administration of the Plan is placed in the Benefits Management Committee, which
consists of one or more persons appointed from time to time by the Board. 
 (c) Duties of Benefits Management Committee.
Subject to the limitations of the Plan, the Benefits Management Committee has the discretionary authority to: (1) construe and interpret the Plan, (2) interpret administrative forms and other information, (3) make credibility
findings, and (4) establish supplemental regulations for the administration of the Plan and the transaction of its business. All actions, determinations and interpretations of the Benefits Management Committee will be performed in a uniform and
nondiscriminatory manner to all Participants in similar circumstances. All interpretations of the Plan and determinations of disputed questions made by the Benefits Management Committee are conclusive, final and binding upon the Participating
Employers, Participants, Beneficiaries, other employees and any other individuals claiming rights under the Plan, subject to a claimant’s request under paragraph (e) of this Section to have the Benefits Management Committee review the
denial of a claim. When making an interpretation or determination, the Benefits Management Committee is entitled to rely upon information furnished by the individual, Participant, Beneficiary or Participating Employer, unless in accordance with an
appeals procedure established by the Benefits Management Committee the claimant establishes to the satisfaction of the Benefits Management Committee that Continuous Service, compensation or other records are erroneous. 

(d) Application for Benefits. Each person applying for a benefit under the Plan must furnish all information required under
procedures approved by the Benefits Management Committee. 
 (e) Review of Denial of Benefits. If any applicant’s claim
for benefits under the Plan is denied, the applicant will be notified in writing of such denial. Such notice will set forth the specific reasons for such denial and will be written in a manner calculated to be understood by the applicant. The
applicant will be afforded a reasonable opportunity for a full and fair review 

  
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by the Benefits Management Committee or its Designee of the decision denying his or her claim for benefits, in accordance with a claims procedure which the Benefits Management Committee adopts.
After the final determination of an appeal by the Benefits Management Committee or its Designee, the applicant must file any litigation arising out of the underlying facts or circumstances giving rise to such claim and appeal, under ERISA or
otherwise, within one hundred eighty (180) days following the date of the final notice provided by the Benefits Management Committee or its Designee. 

(f) Extent of Benefits Management Committee’s Responsibility. The members of the Benefits Management Committee will act in
a prudent manner in the performance of their duties. No member will be personally liable by virtue of any contract, agreement, bond or other instrument made or executed by or on behalf of such member as a member of the Benefits Management Committee.
To the extent permitted by ERISA, no member of the Benefits Management Committee will be liable for any mistake of judgment made by himself or herself or any other member, nor for any loss, unless resulting from his or her own gross negligence or
willful misconduct, and no member will be liable for the neglect, omissions or wrongdoing of any other member thereof, or of the agents or counsel of the Benefits Management Committee. To the extent permitted by law, AGF will indemnify and save
harmless each member of the Benefits Management Committee against all expenses and liabilities arising out of his or her services as such, except for expenses and liabilities arising from such member’s own gross negligence or willful misconduct
as determined by the Board. 
 (g) Relationship to Other Fiduciaries. Each fiduciary in carrying out its responsibilities
under the Plan may rely upon any direction, information or action of another fiduciary as being proper under this Plan or the documents under which the assets of the Plan are managed, and is not required to inquire into the propriety of any such
direction, information or action. It is intended under this Plan and such documents that each fiduciary is responsible for the proper exercise of its own powers, duties, responsibilities and obligations under this Plan and such documents and is not
responsible for any act or failure to act of another fiduciary, except as otherwise provided by ERISA. 
 (h) Multiple
Fiduciaries. Any person or group of persons may serve in more than one fiduciary capacity with respect to the Plan. 
 (i)
Further Allocation of Fiduciary Duties. Any two or more fiduciaries named herein or appointed by the Board as provided herein may from time to time agree in writing with respect to the allocation of duties and responsibilities under the
Plan, including fiduciary responsibilities, among the fiduciaries so agreeing, provided however that any reallocation of fiduciary responsibilities clearly allocated by the Plan or by the Board requires prior approval of the Board. 

(j) Delegation of Fiduciary Duties. Any fiduciary named herein or appointed by the Board as provided herein may designate
another person or persons to carry out any or all of the duties and fiduciary responsibilities which it has under the Plan and which are specified in such designation except that no Trustee may delegate fiduciary responsibilities with respect to
investment functions without the prior approval of the Board. 

  
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 (k) Delegation of Ministerial Duties. Any fiduciary named herein, appointed by the
Board as provided herein or designated under paragraph (j) above may delegate ministerial duties as follows: employ one or more persons to render advice, including legal and accounting services, with regard to any responsibility such fiduciary
has under the Plan; may appoint ministerial agents (including brokers or others who may execute investment transactions); and may delegate to others its clerical and other non-fiduciary functions. 

(l) No Added Remuneration for Employees. No member of the Benefits Management Committee and no other person who renders services
to or for the Plan may receive remuneration for services as such if he or she also is an employee of AGF, Alcoa, a Subsidiary or Affiliate. 
 SECTION
20. AMENDMENT, MODIFICATION, SUSPENSION OR TERMINATION 
 (a) Rights Reserved. AGF reserves the right, by action of the
Board or the Benefits Management Committee, taken in accordance with the Board’s or Benefits Management Committee’s operating procedures, (1) to amend, modify, suspend or terminate the Plan or to suspend or completely discontinue
contributions to the Plan, and (2) to terminate the Participation in the Plan of any Participating Employer or any designated group of Eligible Employees employed either within or outside the U.S. Any Participating Employer may terminate its
participation in the Plan or suspend or discontinue its contributions under the Plan at any time upon 30 days prior written notice to the Plan Administrator. Such 30 day notice requirement may be waived by the Benefits Management Committee. No such
amendment or other action relating to the Plan may reduce the amounts then credited to any Participant’s account, or provide or have the effect of providing that the securities and funds held in trust for the Plan or the income thereof may be
used for or devoted to purposes other than the exclusive benefit of Participants and their Beneficiaries and for the payment of expenses of the Plan. 

(b) Sale of Assets, etc. In the event any assets of any business of any Participating Employer are transferred to another entity
by sale, merger, consolidation or otherwise, and the entity to which said assets are transferred has in effect, or thereupon establishes, a tax-qualified plan and related trust for the exclusive benefit of employees which qualify under the
applicable provisions of the Code, all assets under the Plan, held in the accounts of Participants who continue in the employment of the transferee entity, may be transferred and paid, for their respective accounts, to the trust for the
tax-qualified plan of said transferee entity, provided that any such transfer of investments will be effected in such manner as to preclude, for federal income tax purposes, a termination of the Plan or the constructive receipt of benefits
thereunder with respect to said Participants. 
 (c) Transfer of Plan Assets. 

(1) Notwithstanding the foregoing, in the event of any merger or consolidation of the Plan with, or a transfer of any of the assets and
liabilities of the Plan to any other plan, each affected Participant must (as if such plan were terminated immediately after such merger, consolidation or transfer) be entitled to a benefit under such other plan which is


  
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equal to or greater than the benefit he or she would have been entitled to receive under the Plan immediately prior to such merger, consolidation or transfer (as if the Plan had then terminated).
In the event that assets are transferred to this Plan from any other plan sponsored by Alcoa or any Subsidiary or Affiliate, each Participant who has assets transferred from such plan or plans will be entitled to a benefit under this Plan which is
equal to or greater than the benefit he or she had under such other plan. Any protected optional form of benefits provided under said plan may be maintained under this Plan. These provisions do not constitute a guaranty against investment losses.

 (2) In the event a participant in a plan named below (“Alcoa Retirement Savings Plans”), becomes an Eligible Employee under
this Plan, all of the participant’s accounts in the applicable Alcoa Retirement Savings Plan will be transferred to analogous accounts in this Plan as soon as reasonably practical after the Plan Administrator or Designee receives notice. 

Alcoa Retirement Savings Plan for Bargaining Employees; 

Alcoa Retirement Savings Plan for Salaried Employees; and 

Alcoa Retirement Savings Plan for Hourly Non-Bargaining Employees. 

(3) In the event a Participant ceases to be an Eligible Employee under this Plan and the Participant becomes an eligible employee under one of
the Alcoa Retirement Savings Plans listed in (2) above, all of the Participant’s accounts will be transferred to analogous accounts in the applicable Alcoa Retirement Savings Plan, as soon as reasonably practical after the Plan
Administrator or Designee receives notice and the Participant ceases to be a Participant, and will be entitled to no further benefits under this Plan. 

SECTION 21. ADMINISTRATIVE EXPENSES 

Except as otherwise provided in the Plan, all costs and expenses incurred in administering the Plan, including the expenses of the Benefits
Management Committee, the fees and expenses of the Trustee, the fees and charges payable under the investment arrangements, and other legal and administrative expenses, are paid by the Plan. 

Investments in the Core Funds will be subject to an administrative expense fee, which will be used to pay the expenses of the Plan. Initially
the fee will be set at five basis points per year, and will be charged on a daily basis. The fee will be periodically adjusted by the Plan Administrator based on the actual expenses of the Plan. 

SECTION 22. SELECTION OF BENEFICIARIES 

(a) Designation of Beneficiary. Subject to such administrative regulations as may be adopted from time to time, the Beneficiary
with respect to all of the assets in the accounts of a Participant will be Participant’s spouse if then living, or if not, the Participant’s estate. With the written notarized consent of a Participant’s spouse, a Participant may file
with the Plan Administrator or its Designee a written designation of a Beneficiary or Beneficiaries other than his or her spouse. In the event the designation of such other Beneficiary is revoked in writing by


  
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the Participant, his or her spouse will become the Beneficiary of said assets until such time as the Participant, with his or her spouse’s written notarized consent, designates in writing
another Beneficiary or Beneficiaries. 
 In the event a Participant certifies that he or she does not have a spouse, a Beneficiary or
Beneficiaries with respect to all or part of the assets in the accounts of the Participant may be designated or revoked by the sole action of the Participant. 

If there is no designated Beneficiary, or if no Beneficiary is living at the time of the Participant’s death, the Beneficiary is the
Participant’s spouse if then living, or if not, the Participant’s estate. 
 Written designations of a primary Beneficiary or a
contingent Beneficiary to receive the assets of a Participant in the case where the primary Beneficiary is deceased, spousal consents, and revocations are made on a form or forms approved by the Plan Administrator. Any such written designation,
consent or revocation become effective on the calendar day on which such designation, consent or revocation is Properly Received. After the death of a Participant, a properly designated Beneficiary may name his or her own Beneficiary to receive a
distribution of the Beneficiary’s account balances when the Beneficiary is deceased (“Subsequent Beneficiary”). A Subsequent Beneficiary shall receive a total distribution of the Subsequent Beneficiary’s account balance within
the greater of: (i) ninety (90) days after death of the Beneficiary who named such Beneficiary or (ii) five (5) years of the Participant’s death. 

(b) Other Payments. In case of incapacity of a Participant or Beneficiary entitled to a benefit under the Plan, benefit payment
are made to such person’s legal representative who makes claim therefore, or if no such claim has been received, to such other person or persons as the Benefits Management Committee, utilizing objective criteria, selects from among dependents,
next of kin or friends. Any payment of a benefit under the Plan in accordance with the provisions of this Section is a complete discharge of any liability for the payment of such benefit under the Plan. 

SECTION 23. PARTICIPANT’S STATEMENT 

A statement showing each Participant’s interest in each of the Plan’s Investment Funds will be made available at least quarterly.

 SECTION 24. EFFECTIVE DATE OF PLAN 

This Plan is effective January 1, 2015. 

SECTION 25. CONSTRUCTION 
 It is intended
that the Plan conform to the applicable requirements of ERISA and the Code, and that the Plan and related trust agreement are considered one if and to the extent necessary for compliance therewith. Except to the extent otherwise provided in ERISA
and the Code, the Plan is construed, regulated and administered under the laws of the Commonwealth of Pennsylvania, including its applicable statute of limitations (as such may be superceded by any limitations period provided under the terms of the
Plan). 

  
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 APPENDIX A 

LIMITATIONS AND DISCRIMINATION TESTING 

1. Pre-Tax Savings for any Plan Year of a Participant is subject to the following limitations: 

(a) The applicable limit as defined in Treasury Regulation section 1.402(g)-1(d) with respect to the Pre-Tax Savings of this Plan and
elective deferrals of all other plans, contracts, or arrangements of the employer; 
 (b) if the Participant is a Highly Compensated
Employee with respect to any Participating Employer for that year, the amount that may be made on his or her behalf in compliance with the special discrimination tests of Sections 401(k) and 401(m) of the Code for that year, as applied separately to
each Plan; 
 (c) the amount deductible by the Participating Employer for that year under Section 404 of the Code; and 

(d) the maximum permitted amount under Appendix B of the Plan. 

2. To conform the operation of the Plan to the requirements of Sections 401(k) and 401(m) of the Code and the limitations of Paragraphs (1)(a) and
(1)(b) above with respect to any Participant, the Plan Administrator may, without that Participant’s consent: 
 (a)
prospectively modify or revoke his or her election to have Savings, Participating Employer Contributions, Discretionary Contributions, and Restricted Discretionary Contributions made on his or her behalf, 

(b) distribute to him or her the amount by which the Pre-Tax Savings made on his or her behalf for any Year exceeds the limitation of
Paragraph (1)(a) above for that year plus the amount of any income allocable to such excess (but not more than his Pre-Tax Savings account balance) by the April 15 next following the end of that Plan Year; 

(c) distribute to him or her the amount by which the Pre-Tax Savings made on his or her behalf for any Plan Year exceeds the
limitations of Paragraph (1)(b) above for that year (as determined in accordance with Section 401(k)(8)(B) of the Code) plus the amount of any income allocable to such excess (but not more than his Pre-Tax Savings account balance) by the
end of the Plan Year following the Plan Year for which the amounts were contributed; and 
 (d) make appropriate adjustments to his
or her Pre-Tax Savings account to reflect such distributions. 

  
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 3. Such modification or revocation described in 2. above is made only if necessary under one of the
following circumstances: 
 (a) to ensure that the discrimination tests of Section 401(k) of the Code governing permissible
levels of Pre-Tax Savings contributions for both the ESOP and non-ESOP portions of the Plan are met for such Plan Year, or to ensure that one of the following Average Actual Deferral Percentage tests are met for both the ESOP and non-ESOP portions
of the Plan for such Plan Year; 
 (b) to ensure that a Participant’s annual additions for any calendar year will not exceed the
limitations of Appendix B; or 
 (c) to ensure deductibility of the Employer’s entire contribution to the Plan for federal
income tax purposes. 
 4. Definitions. For purposes of this Appendix A, the following terms are defined as follows: 

(a) “Actual Deferral Percentage” means the ratio, expressed as a percentage calculated to the nearest one-hundredth of one
percent, of the amount of Pre-Tax Savings on behalf of an Eligible Employee for a Plan Year to the Eligible Employee’s Compensation for the Plan Year, whether or not the employee was a Participant for the entire Plan Year. A Highly Compensated
Employee’s Savings include such savings for the Plan Year which is in excess of the limitations set forth in Section 415(c)(1) of the Code (“Excess Pre-Tax Savings”), but exclude Excess Pre-Tax Savings for Non Highly Compensated
Employees. Any Eligible Employee who does not elect to make Pre-Tax Savings and who does not receive Qualified Matching Contributions for a Plan Year will have zero Actual Deferral Percentage for the Plan Year. 

(b) “Average Actual Deferral Percentage” means, for the group of Eligible Employees who are Highly Compensated Employees for
a Plan Year or the group of Eligible Employees who are Non-Highly Compensated Employees for the Plan Year, the average of the Actual Deferral Percentages of all Eligible Employees in such group for the Plan Year. 

(c) “Average Contribution Percentage” means, for the group of Eligible Employees who are Highly Compensated Employees for a
Plan Year or the group of Eligible Employees who are Non-Highly Compensated Employees for the Plan Year, the average of the Contribution Percentages of all Eligible Employees in such group for the Plan Year. 

(d) “Contribution Percentage” means the ratio, expressed as a percentage calculated to the nearest one-hundredth of one
percent, of the sum of Participating Employer Contributions (other than Qualified Matching Contributions treated as Elective Deferrals under paragraph 7 of this Appendix) and any After-Tax Savings on behalf of an Eligible Employee for a Plan Year to
the Employee’s Compensation for the Plan Year, whether or not the employee was a Participant for the entire Plan Year. For these purposes, an Eligible Employee’s Contribution Percentage for any Plan Year is calculated by excluding any
forfeitures of Excess Aggregate Contributions allocated to the Eligible Employee’s account for the Plan Year. 

  
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 (e) “Compensation” means the total amount of compensation (within the meaning of
Section 415(c)(3) of the Code, and subject to the limitation of Section 401(a)(17) of the Code) received by an employee from the Employer while an Eligible Employee under the Plan during the Plan Year. An Eligible Employee’s
Compensation for a Plan Year includes all Pre-Tax Savings made to the plan for the Plan Year, and all other such employee savings made by the Employer for the Plan Year to any other plan on behalf of the employee that are not currently includible in
the gross income of the employee under Sections 125, 132(f)(4), 402(a)(8), 402(h) or 403(b) of the Code, provided that AGF has elected to treat all such elective contributions as compensation with respect to all employees under all plans of the
Participating Employer. 
 In applying the limitation of Section 401(a)(17) of the Code, effective January 1, 1997, the family
aggregation rules under this Appendix no longer apply. 
 (f) “Eligible Employee” means, with respect to any Plan Year, any
employee who is eligible to commence participation in the Plan under Section 1 of the Plan and to have Savings made to the Plan under Section 2 of the Plan for the Plan Year, regardless of whether any contributions are made to the Plan on
behalf of the employee for the Plan Year. 
 (g) “Excess Contributions” means, with respect to any Plan Year, the excess of
the aggregate amount of Pre-Tax Savings, including Qualified Matching Contributions treated as Elective Deferrals under paragraph 7 of this Appendix, actually made to the Plan on behalf of Highly Compensated Employees for the Plan Year over the
maximum amount of such contributions permitted under paragraph 5 of this Appendix. 
 (h) “Excess Aggregate Contributions”
means, with respect to any Plan Year, the excess of the aggregate amount of Participating Employer Contributions and any After-Tax Savings actually made to the Plan on behalf of Highly Compensated Employees for the Plan Year over the maximum amount
of such contributions permitted under paragraph 9 of this Appendix. 
 (i) “Employer” means AGF and all other entities as
required to be covered under Section 414(c) of the Code. 
 (j) “Family Member” means, with respect to any Eligible
Employee, an individual described in Section 414(q)(6)(B) of the Code. 
 (k) “Highly Compensated Employee” includes,
for any Plan Year, the following Employees: 
 (i) A Highly Compensated Active Employee includes any employee (other than
employees who are non-resident aliens and receive no earned income from sources within the U.S.) who performs service for the Employer during the Determination Year and who during the Look-Back Year: 

(1) was a 5 % owner (within the meaning pursuant to Section 416(i)(1) of the Code) at any time during the year or the
preceding year, or 

  
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 (2) for the preceding year received Compensation from the Employer in excess of
$80,000 (as adjusted pursuant to Section 415(d) of the Code) for such year. 
 (ii) A Highly Compensated Former Employee
means: 
 (1) any employee who was a Highly Compensated Employee when the employee separated from service, or 

(2) any employee who was a Highly Compensated Employee at any time after attaining the age 55. 

(l) “Non-Highly Compensated Employee” means, for any Plan Year, an employee who is not a Highly Compensated Employee. 

(m) “Qualified Matching Contributions” means any Participating Employer Contributions to this Plan on behalf of Eligible
Employees, provided that amounts attributable to such contributions are not distributable merely on account of the Employee’s hardship and are immediately vested. 

5. Average Actual Deferral Percentage Test. For each Plan Year, the Plan must satisfy one of the following Average Actual Deferral Percentage tests
with respect to Pre-Tax Savings, and Qualified Matching Contributions treated as Pre-Tax Savings under paragraph 7 of this Appendix, made to both the ESOP and non-ESOP portions of the Plan for the Plan Year: 

(a) the Average Actual Deferral Percentage for the group of Eligible Employees who are Highly Compensated Employees for the Plan Year
will not exceed the Average Actual Deferral Percentage for the group of Eligible Employees who are Non-Highly Compensated Employees for the Plan Year multiplied by 1.25; or 

(b) the Average Actual Deferral Percentage for the group of Eligible Employees who are Highly Compensated Employees for the Plan Year
will not exceed the Average Actual Deferral Percentage for the group of Eligible Employees who are Non-Highly Compensated Employees for the Plan Year multiplied by two, provided that the Average Actual Deferral Percentage for the group of Eligible
Employees who are Highly Compensated Employees for the Plan Year does not exceed the Average Actual Deferral Percentage for the group of Eligible Employees who are Non-Highly Compensated Employees by more than two percentage points. 

(c) The Average Actual Deferral Percentage Test for all contributions to the ESOP portion of the Plan will be computed separately under
this Section. 
 For Plan Years in which the Plan is operated in accordance with the safe harbor requirements of Section 401(k)(12) of
the Code, Section 5 of this Appendix A does not apply. 

  
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 6. Special Rules. 

(a) Aggregation of Plans. In the event that this Plan satisfies the requirements of Section 401(a)(4), 401(k) or 410(b) of the Code
only if aggregated with one or more other plans, or if one or more other plans satisfy the requirements of such sections of the Code only if aggregated with this Plan, then the provisions stated herein will be applied by determining the Actual
Deferral Percentages of Employees as if all such plans (excluding other ESOPs) were a single plan. For plan years beginning after December 31, 1989, plans may be aggregated in order to satisfy Section 401(k) of the Code only if they have
the same plan year. Notwithstanding the foregoing, certain plans will be treated as separate if mandatorily disaggregated under regulations under Section 401(k) of the Code. 

(b) In the event the Plan does not pass the ADP test, the test will be disaggregated by removing from the test all participants who
have not attained age 21 and completed one eligibility year within 6 months of the last day of the plan year. 
 (c) All ESOP
portions of the Savings Plan shall be aggregated for ADP with the Non-ESOP portions of the Savings Plan. 
 7. Treatment of Qualified Matching
Contributions. If any Qualified Matching Contributions are made on behalf of Eligible Employees for a Plan Year, AGF may elect, in accordance with the regulations of the Secretary of Treasury under Section 401(k) of the Code, to treat all
or a portion of such Qualified Matching Contributions as Pre-Tax Savings for purposes of calculating the Actual Deferral Percentages of Eligible Employees for the Plan Year. Any such Qualified Matching Contributions for a Plan Year must be made no
later than the end of the 12 month period immediately following the close of the Plan Year. 
 8. Correction of Excess Contributions. 

(a) General Rule. If the Plan does not satisfy one of the Average Actual Deferral Percentage tests of paragraph 5 of this Appendix as of
the end of a Plan Year, the Excess Contributions for the Plan Year will be corrected if the Excess Contributions for the Plan Year are timely recharacterized as employee After-Tax Savings contributions in accordance with subsection (c) below or
timely distributed to Highly Compensated Employees in accordance with subsection (d) below. 
 (b) Allocation of Excess
Contributions. Effective for Plan Years beginning after December 31, 1996, in the event the nondiscrimination requirements of paragraph 5 of this Appendix are not satisfied for a Plan Year, the “deferral percentage leveling
method” described in the preceding paragraph is performed as a first step in order to determine the total dollar amount of Excess Contribution to be distributed: a calculation is made to determine the dollar amount of Elective Deferrals
necessary to reduce the deferral percentage of the Highly Compensated Employee with the highest deferral percentage to be equal to the deferral percentage of the Highly Compensated Employee with the next highest deferral percentage, and where
necessary, calculations are made to determine the dollar amounts of reductions of the deferral percentage of subsequent Highly Compensated Employees that may be required in order 

  
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to satisfy the nondiscrimination requirements in paragraph 5 of this Appendix. The total dollar amount of Excess Contribution that must be distributed for the Plan Year is the sum of the dollar
amounts so calculated for each Highly Compensated Employee whose deferral percentage is so reduced. 
 Distribution of the total amount of
Excess Contribution determined in the paragraph above is made using the “dollar leveling method.” Excess Contributions of the Highly Compensated Employee with the largest dollar amount of contributions for the Plan Year shall be
distributed to the extent necessary to cause that Highly Compensated Employee’s dollar amount of Excess Contributions to equal the dollar amount of Excess Contributions of the Highest Compensated Employee with the next highest dollar amount of
Excess Contributions for the Plan Year. If the total amount distributed is less than the amount of total Excess Contribution, then both Highly Compensated Employees’ amounts are reduced to the same dollar level of the Highly Compensated
Employee electing the third highest dollar amount and the dollar leveling process is repeated until the total dollar amount that should be reduced as calculated in the above paragraph is distributed. However, if reduction of a lesser amount of
contributions would equal the total dollar amount of Excess Contributions that must be distributed for the Plan Year, the lesser amount is distributed. 

A participant who has had his contributions reduced in accordance with this subparagraph shall have the amount of such reduction paid to him
in cash as soon as practicable, subject to applicable payroll taxes. The amount of the Excess Contributions to be distributed shall be reduced by excess deferrals under 402(g) previously distributed for the Plan Year. The distributions of Excess
Contributions shall include the income allocable thereto, including both the income allocable for the Plan Year for which the Contributions were made and the income for the period between the end of that Plan Year and the date as of which the
distribution is made. Effective January 1, 2008, the distribution of Excess Contributions shall include the income or loss allocable only for the Plan Year of the Excess Contributions, and will not include the income or loss for the period
between the end of the Plan Year and the date distribution is made. In addition, any Company Matching Contributions associated with the Excess Contribution shall be treated as forfeiture and used to reduce the Employer’s contribution under
Section 3 of the Plan. 
 (c) Recharacterization of Excess Contributions. Any recharacterization of Excess Contributions as
employee After-Tax Savings will be accomplished by the Plan Administrator in the manner provided in subsection (b) above within 2  1⁄2 months after the
close of the Plan Year, providing such notices and following such procedures as required by regulations of the Secretary of Treasury, and will be deemed to occur no earlier than the date on which the last Highly Compensated Employee is informed in
writing of the amount of his or her recharacterized Excess Contributions and the consequences thereof. Any Excess Contributions that are recharacterized as employee after-tax contributions for a Plan Year will, in combination with other
Participating Employer Contributions to the Plan for the Plan Year, satisfy the Average Contribution Percentage tests of paragraph 9 of this Appendix for the Plan Year. Any recharacterized Excess Contributions remain nonforfeitable under the Plan
and are subject to the same distribution requirements as Pre-Tax Savings. Recharacterized Excess Contributions are taxable to the Highly Compensated Employee for the year in which the Highly Compensated Employee could have originally elected to
receive the Excess Contributions amount in cash. 

  
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 (d) Distribution of Excess Contributions. If any Excess Contributions allocated to Highly
Compensated Employees for a Plan Year are not corrected by recharacterization under (c) above, then such Excess Contributions, plus any income and minus any loss allocable thereto, will be distributed to Highly Compensated Employees no later
than 12 months following the close of the Plan Year. 
 (e) Income or Loss Allocable to Excess Contributions. The income or loss
allocable to the Excess Contributions referred to in subsection (d) above include the allocable income or loss for the Plan Year of the Excess Contributions and the allocable income or loss for the period between the end of the Plan Year and
the distribution of the Excess Contributions, calculated as follows: 
 The income or loss allocable for the Plan Year of the Excess
Contributions is determined by multiplying the total investment income or loss (including dividends, interest, realized gains or losses, and unrealized appreciation or depreciation) allocable to the Participant’s Pre-Tax Savings and amounts
treated as Pre-Tax Savings under paragraph 7 of this Appendix for the Plan Year by a fraction, the numerator of which is the Excess Contributions allocated to the Participant for the Plan Year, and the denominator of which is the total account
balance attributable to the Participant’s Pre-Tax Savings and amounts treated as Pre-Tax Savings under paragraph 7 of this Appendix as of the end of the Plan Year, reduced by the investment gain (or increased by the investment loss) allocated
to such total amount for the Plan Year. 
 The income or loss allocable to the Excess Contributions referred to in subsection (d) above
will include only the income or loss allocable for the Plan Year of the Excess Contributions, and not the income or loss for the period between the end of the Plan Year and the distribution of Excess Contributions. 

(f) Coordination with Excess Pre-Tax Savings. The amount of any Excess Contributions to be recharacterized under subsection
(c) above or distributed under subsection (d) above with respect to any Highly Compensated Employee for a Plan Year is reduced by any excess Pre-Tax Savings previously distributed to the Highly Compensated Employee for the employee’s
taxable year ending with or within the Plan Year. 
 (g) Accounting for Excess Contributions. The amount of Excess Contributions
allocated to a Highly Compensated Employee for a Plan Year that is recharacterized under subsection (c) above or distributed under subsection (d) above is attributed first to the Participant’s Pre-Tax Savings for the Plan Year and
then, to the extent such Excess Contributions exceed the Participant’s Pre-Tax Savings for the Plan Year, attributed to amounts treated as Pre-Tax Savings under paragraph 4 of this Appendix in proportion to the amounts of such contributions on
behalf of the Participant for the Plan Year. 
 9. Average Contribution Percentage Tests. For each Plan Year for which Participating Employer
Contributions are made to the Plan (other than Qualified Matching Contributions 

  
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treated as Pre-Tax Savings for the Plan Year under paragraph 7 of this Appendix) or any After-Tax Savings are made to the Plan (including any Excess Contributions recharacterized as After-Tax
Savings for the Plan Year under paragraph 8(c) of this Appendix), both the ESOP and non-ESOP portions of the Plan will satisfy one of the following Average Contribution Percentage tests for the Plan Year: 

(a) the Average Contribution Percentage for the group of Eligible Employees who are Highly Compensated Employees for the Plan Year will
not exceed the Average Contribution Percentage for the group of Eligible Employees who are Non-Highly Compensated Employees for the Plan Year multiplied by 1.25; or 

(b) the Average Contribution Percentage for the group of Eligible Employees who are Highly Compensated Employees for the Plan Year will
not exceed the Average Contribution Percentage for the group of Eligible Employees who are Non-Highly Compensated Employees for the Plan Year multiplied by two, provided that the Average Contribution Percentage for the group of Eligible Employees
who are Highly Compensated Employees for the Plan Year does not exceed the Average Contribution Percentage for the group of Eligible Employees who are Non-Highly Compensated Employees by more than two percentage points. 

(c) the Average Contribution Percentage Test applies separately to the ESOP portion of the Plan. 

10. Special Rules. 
 (a) Aggregation of
Plans. In the event that this Plan satisfies the requirements of Section 401(a)(4), 401(m) or 410(b) of the Code only if aggregated with one or more other plans, or if one or more other plans satisfy the requirements of such sections of the
Code only if aggregated with this Plan, then the provisions stated herein will be applied by determining the Contribution Percentages of Employees as if all such plans were a single plan. For plan years beginning after December 31, 1989, plans
may be aggregated to satisfy Section 401(m) of the Code only if they have the same plan year. Notwithstanding the foregoing, certain plans will be treated as separate if mandatorily disaggregated under regulations under Section 401(k) of
the Code. 
 (b) Effective as of January 1, 2002, in the event the Plan does not pass the ACP test, the test will be
disaggregated by removing from the test all participants who have not attained age 21 and completed one eligibility year within 6 months of the last day of the plan year. 

(c) Effective with plan years after January 1, 2006, all ESOP portions of the Savings Plan shall be aggregated for ACP with the
Non-ESOP portions of the Savings Plan. 
 11. Treatment of Pre-Tax Savings as Participating Employer Contributions. 

AGF may elect, in accordance with the regulations of the Secretary of Treasury under Section 401(m) of the Code, to treat all or a portion
of the Pre-Tax Savings made on behalf of Eligible Employees for a Plan Year as Participating Employer Contributions for purposes of 

  
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calculating the Contribution Percentages of Eligible Employees for the Plan Year. Any such Pre-Tax Savings for a Plan Year must be made no later than the end of the 12 month period immediately
following the close of the Plan Year. Notwithstanding the preceding, AGF may elect to treat Pre-Tax Savings as Participating Employer Contributions for purposes of calculating Contribution Percentages only if one of the Average Actual Deferral
Percentage Tests of paragraph 5 of this Appendix is satisfied before the Pre-Tax Savings are treated as Participating Employer Contribution for the Plan Year, and one of the Average Actual Deferral Percentage Tests of paragraph 5 of this Appendix
continues to be satisfied for the Plan Year excluding the Pre-Tax Savings treated as Participating Employer Contributions for the Plan Year. 
 12.
Correction of Excess Aggregate Contributions. 
 (a) General Rule. If the Plan does not satisfy one of the Average Contribution
Percentages tests of paragraph 9 of this Appendix as of the end of a Plan Year, the Excess Aggregate Contributions for the Plan Year will be corrected by the Employer if the Excess Aggregate Contributions for the Plan Year are forfeited or timely
distributed to Highly Compensated Employees in accordance with subsection (c) below. 
 (b) Allocation of Excess Aggregate
Contributions. Effective as of January 1, 1997, in the event Excess Aggregate Contributions are made to the Plan for a Plan Year, the Contribution Percentage for the Highly Compensated Employee with the largest dollar amount of deferrals
for the Plan Year will be reduced to minimum extent necessary either: 
 (i) to enable the Plan to satisfy one of the Average
Contribution Percentage tests of paragraph 9 of this Appendix for the Plan Year; or 
 (ii) to cause the Highly Compensated
employee’s Contribution Percentage to equal the next highest Contribution Percentage of any Highly Compensated Employee for the Plan Year. 
 This
process is repeated until the Average Contribution Percentage for the group of Eligible Employees who are Highly Compensated Employees for the Plan Year is sufficiently reduced to enable the Plan to satisfy one of the Average Contribution Percentage
tests of paragraph 9 of this Appendix for the Plan Year. The amount of Excess Aggregate Contributions to be allocated to each Highly Compensated Employee for the Plan Year is equal the total After-Tax Savings and Participating Employer
Contributions, including Pre-Tax Savings on behalf of the Highly Compensated Employee for the Plan Year minus the amount determined by multiplying the Highly Compensated Employee’s reduced Contribution Percentage (as determined above) by the
employee’s Compensation for the Plan Year. 
 (c) Forfeiture or Distribution of Excess Aggregate Contributions. Excess Aggregate
Contributions, plus any income or minus any loss allocable thereto, must be forfeited to the extent attributable under subsection (f) below to Participating Employer Contributions that are not vested, and otherwise distributed to Highly
Compensated Employees no later than 12 months following the close of the Plan Year. 

  
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 (d) Income or Loss Allocable to Excess Aggregate Contributions. The income or loss
allocable to the Excess Aggregate Contributions referred to in subsection (c) above include the allocable income or loss for the Plan Year of the Excess Aggregate Contributions and the allocable income or loss for the period between the end of
the Plan Year and the distribution of the Excess Aggregate Contributions, calculated as follows: 
 (i) the income or loss
allocable for the Plan Year of the Excess Aggregate Contributions is determined by multiplying the total investment income or loss (including dividends, interest, realized gains or losses, and unrealized appreciation or depreciation) allocable to
the Participant’s After-tax Savings, Participating Employer Contributions, and any other amounts taken into account under this section for the Plan Year by a fraction, the numerator of which is the Excess Aggregate Contributions allocated to
the Participant for the Plan Year, and the denominator of which is the total account balance attributable to the Participant’s After-tax Savings, Participating Employer Contributions and other amounts taken into account under this section as of
the end of the Plan Year, reduced by the investment gain (or increased by the investment loss) allocated to such total amount for the Plan Year; 

(ii) the income or loss allocable to the period (if any) between the end of the Plan Year of the Excess Aggregate Contributions
and the distribution of the Excess Aggregate Contributions by the Plan is determined by multiplying the total investment income or loss allocated to the Participant’s Participating Employer Contributions and amounts treated as Participating
Employer Contributions under paragraph 11 of this Appendix for such period by a fraction determined under the method described in (i) above. In the alternative, the income or loss allocable to the period between the end of the Plan Year of the
Excess Aggregate Contributions and the distribution of the Excess Aggregate Contributions equals 10% of the income or loss allocable to the Participant’s Excess Aggregate Contributions for the Plan Year (as determined under (i) above
multiplied by the number of calendar months that elapse between the end of the Plan Year and the date of distribution. For these purposes, a distribution occurring on or before the fifteenth day of a calendar month is treated as having been made on
the last day of the preceding calendar month, and a distribution occurring after the fifteenth date of a calendar month is treated as having been made on the first day of the following calendar month. 

The income or loss will include only the income or loss allocable for the Plan Year of the Excess Aggregate Contributions, and not the income or loss for the
period between the end of the Plan Year and the distribution of Excess Aggregate Contributions. 
 (e) Coordination with Excess
Contributions. The determination of the amount of Excess Aggregate Contributions for a Plan Year is made after the determination of the amount of any Excess Contributions for the Plan Year. 

(f) Accounting for Excess Aggregate Contributions. The amount of Excess Aggregate Contributions allocated to a Highly Compensated
Employee for a Plan Year is attributed to Participating Employer Contributions and any amounts treated as Participating Employer Contributions in proportion to the amounts of such contributions on behalf of the Participant for the Plan Year. 

  
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 13. Recordkeeping Requirements. 

(a) Average Actual Deferral Percentage Tests. The Employer maintains records sufficient to demonstrate satisfaction of the Average
Actual Deferral Percentage tests of paragraph 5 of this Appendix for each Plan Year, and the extent to which any Qualified Matching Contributions are treated as Pre-Tax Savings under paragraph 7 of this Appendix for purposes of such tests. The
determination of Eligible Employees’ Actual Deferral Percentages, and the disposition of all Pre-Tax Savings (and any Qualified Matching Contributions treated as Pre-Tax Savings under paragraph 7 of this Appendix) on behalf of Participants,
must satisfy such other requirements as may be prescribed by the Secretary of Treasury. 
 (b) Average Contribution Percentage Tests.
The Employer maintains records sufficient to demonstrate satisfaction of the Average Contribution Percentage tests of paragraph 9 of this Appendix for each Plan Year, and the extent to which any Pre-Tax Savings are treated as Participating Employer
Contributions under paragraph 11 of this Appendix for purposes of such tests. The determination of Eligible Employees’ Average Contribution Percentages, and the disposition of all Participating Employer Contributions (and any Pre-Tax Savings)
on behalf of Participants, must satisfy such other requirements as may be prescribed by the Secretary of Treasury. 
 14. Distribution of Excess Elective
Deferrals. Excess Elective Deferrals means Pre-Tax Savings that is includible in a Participant’s gross income under Section 402(g) of the Code to the extent it exceeds the dollar limitation. Excess Elective Deferrals are treated as
annual additions under the Plan unless such amounts are distributed no later than the first April 15th following the close of the Participant’s taxable year. Excess Elective Deferrals are adjusted for any income or loss up to the date of
distribution as calculated under paragraph 8(e) and 12(d) of this Appendix. A Participant is deemed to notify the Plan Administrator of Excess Elective Deferrals that arise by taking into account only those Elective Deferrals made to this Plan and
any other plans of the Employer. A Participant may assign any Excess Elective Deferrals made by the Participant to any other plans other than those of the Employer by notifying the Plan Administrator on or before January 15th of the following
year. 

  
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 APPENDIX B 

CODE SECTION 415 LIMITATIONS 
 The
limitations imposed by Section 415 of the Code are hereby incorporated by reference. If there is any discrepancy between the provisions of this Plan and the provisions of Code Section 415 and the regulations thereunder, the discrepancy
will be resolved in such a way to give full effect to the provisions of Code Section 415. 
 The maximum annual additions provided by the Plan will be
exactly equal to the maximum amounts permitted under Code Section 415 and the regulations thereunder. In the event a Participant’s annual additions for any Plan Year would exceed the maximum amount of annual additions permitted under Code
Section 415, such Participant’s Savings are automatically reduced, in whole or in part, by the amount required to eliminate such excess. 
 For
purposes of applying the limitations described in this Appendix B, compensation will include any differential pay received by a Participant absent for military leave and any payment earned prior to a Participant’s separation from employment
that is paid within a period ending on the later of i) two and one-half months following the date the Participant separated from employment, or ii) the end of the Plan Year in which the date the Participant separated from employment
(“Post-Separation Compensation”). Post-Separation Compensation will include any payments for vacation, sickness, or leave of absence that otherwise would have been included as compensation had the Participant remained employed. 

  
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 APPENDIX C 

TOP HEAVY RULES 
 (a)
This Plan constitutes a “Top Heavy Plan” for a Plan Year if as of the last day of the preceding Plan Year the present value of the cumulative account balances under the Plan for Participants who are Key Employees exceed 60 percent of
the present value of the aggregate of all account balances for all Participants in the Plan. A non-Key Employee means any Participant or former Participant who is not a Key Employee. 

(b) This Plan constitutes a Top Heavy Plan for a Plan Year if the employee benefit plans which make up the group of plans of which this
Plan is considered a part are such that, when aggregated, the sum of (1) the present value of the account balances of Key Employees under all defined contribution plans in the group, and (2) the present value of the cumulative accrued
benefits of Key Employees under all defined benefit plans in the group exceed 60 percent of the sum of such amounts for all employees who participate in the plans in the said group. 

(1) The group of plans in which this Plan is considered a part includes (A) all plans of Alcoa, the Subsidiaries and Affiliates which
enable the particular plans in which a Key Employee participates to meet the qualification requirement of Section 401(a)(4) of the Code or Section 410 of the Code; and, (B) all plans which Alcoa, in its discretion, decides to include,
provided that the inclusion of such plan or plans would not prevent the group of plans from meeting the qualification requirements of Sections 401(a)(4) and 410 of the Code. The date upon which the account balances are valued for purposes of
calculating the top heavy ratio to determine whether or not the Plan is Top Heavy for a particular Plan Year is the determination date, which is the last day of the preceding Plan Year, or in the case of the first plan year of any plan, the last day
of such plan year. 
 (2) The amounts of account balances of an employee as of the determination date are increased by the distributions
made with respect to the employee under the plan and any plan aggregated with the plan under Section 416(g)(2) of the Code during the one-year period ending on the determination date. The preceding sentence also applies to distributions under a
terminated plan which, had it not been terminated, would have been aggregated with the plan under Section 416(g)(2)(A)(i) of the Code. In the case of a distribution made for a reason other than separation from service, death, or disability,
this provision is applied by substituting “five-year period” for “one-year period.” 
 (3) The accounts of any
individual who has not performed services for the employer during the one-year period ending on the determination date are not taken into account. 

(c) The following provisions are applicable to Participants for any Plan Year with respect to which the Plan is Top Heavy: 

(1) The minimum Participating Employer Contribution for a Participant who is a non-Key Employee and has not separated from service at the end
of the Plan Year, must not 

  
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be less than three percent of his or her Eligible Compensation for the Top Heavy Plan Year. If said allocation is less than three percent of his or her Eligible Compensation, then said allocation
is the largest percentage allocated to a Key Employee for the Top Heavy Plan Year. In the event the highest rate allocated to a Key Employee for the Top Heavy Plan Year is less than three percent, Pre-Tax amounts contributed to the Plan are included
in determining contributions made on behalf of Key Employees. Compensation for determining a minimum benefit, a minimum contribution and for all other Top Heavy purposes is the Participant’s W-2 earnings for the calendar year that ends with the
Plan Year. 
 Participating Employer Contributions used to satisfy the minimum contribution requirements are treated as Participating
Employer Contributions for purposes of the actual contribution percentage test and other requirements of Section 401(m) of the Code. 

(2) With respect to benefits accruing during any Plan Year in which the Plan is Top Heavy, average compensation is limited to amounts not in
excess of the amount permitted under Section 401(a)(17) of the Code. If the accrued benefit as of the end of the last Plan Year before the Plan became Top Heavy is greater than the accrued benefit determined by limiting compensation, that
higher accrued benefit cannot be reduced. 
 (3) In the event the Plan is Top Heavy with respect to a Plan Year and ceases to be Top Heavy
for a subsequent Plan Year, the Participant’s account balance in any such subsequent Plan Year is not less than the Participant’s Pre-Tax Savings (subject to adjustment for earnings) computed as of the end of the most recent Plan Year for
which the Plan was Top Heavy. 
 (d) Notwithstanding any of the above, if a non-Key Employee participates in this Plan and a defined
benefit pension plan included in a required aggregation group which is top heavy, a minimum allocation of five percent of Section 415 compensation is provided under this Plan. The Plan will not be deemed Top Heavy if ninety percent is
substituted for sixty percent in (b)(1) of this Appendix and Participating Employer provides additional contributions to the Plan on behalf of non-Key Employees who participate in both defined benefit and defined contribution plans maintained by a
Participating Employer, in amounts at least equal to the amount set forth in Paragraph (c)(1) of this Appendix as modified by substituting “seven and one-half percent” for “three percent.” If the non-Key Employee does not
participate in a defined benefit plan maintained by Alcoa, a Subsidiary or Affiliate, such employee will receive an additional contribution of four percent. 

(e) For Plan Years in which the Plan meets the safe harbor alternative method of discrimination testing described in Paragraph 16 of
Appendix A, the term “Top Heavy Plan” described in this Appendix C does not apply. 

  
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 APPENDIX D 

MINIMUM DISTRIBUTION REQUIREMENTS 

Section 1. General Rules 
 1.1. Effective Date. The
provisions of this Appendix D will apply for purposes of determining required minimum distributions. 
 1.2. Precedence. The requirements of this Appendix D
will take precedence over any inconsistent provisions of the Plan. 
 1.3. Requirements of Treasury Regulations Incorporated. All distributions required
under this Appendix D will be determined and made in accordance with section 401(a)(9) of the Internal Revenue Code and Treasury regulations §§1.401)(a)(9)-2 through -9, which will override any inconsistent distribution provisions of the
Plan. Distribution of any incidental death benefit requirements provided under the Plan will be a distribution for purposes of this Appendix D. 

1.4. TEFRA Section 242(b)(2) Elections. Notwithstanding the other provisions of this Appendix D, distributions may be made under a
designation made before January 1, 1984, in accordance with section 242(b)(2) of the Tax Equity and Fiscal Responsibility Act (TEFRA) and the provisions of the Plan that relate to section 242(b)(2) of TEFRA. 

Section 2. Time and Manner of Distribution. 
 2.1. Required
Beginning Date. The Participant’s entire interest will be distributed, or begin to be distributed, to the Participant no later than the Participant’s required beginning date. 

2.2. Death of Participant Before Distributions Begin. If the Participant dies before distributions begin and there is a designated Beneficiary, the
Participant’s entire interest will be distributed to the designated Beneficiary by December 31 of the calendar year containing the fifth anniversary of the Participant’s death. If the Participant’s surviving spouse is the
Participant’s sole designated Beneficiary and the surviving spouse dies after the Participant but before distributions to either the Participant or the surviving spouse begin, this election will apply as if the surviving spouse were the
Participant. This election will apply to all distributions. 
 If there is no designated Beneficiary as of September 30 of the year following the year
of the Participant’s death, the Participant’s entire interest will be distributed by December 31 of the calendar year containing the fifth anniversary of the Participant’s death. 

2.3. Forms of Distribution. Unless the Participant’s interest is distributed in the form of an annuity purchased from an insurance company or in a single
sum on or before the required beginning date, as of the first distribution calendar year distributions will be 

  
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made in accordance with sections 3 and 4 of this Appendix D. If the Participant’s interest is distributed in the form of an annuity purchased from an insurance company, distributions
thereunder will be made in accordance with the requirements of section 40l(a)(9) of the Code and the Treasury regulations. 
 Section 3. Required
Minimum Distributions During Participant’s Lifetime. 
 3.1. Amount of Required Minimum Distribution For Each Distribution Calendar Year. During the
Participant’s lifetime, the minimum amount that will be distributed for each distribution calendar year is the lesser of: 
 (a) the
quotient obtained by dividing the Participant’s account balance by the distribution period in the Uniform Lifetime Table set forth in section 1.401(a)(9)-9 of the Treasury regulations, using the Participant’s age as of the
Participant’s birthday in the distribution calendar year; or 
 (b) if the Participant’s sole designated Beneficiary for the
distribution calendar year is the Participant’s spouse, the quotient obtained by dividing the Participant’s account balance by the number in the Joint and Last Survivor Table set forth in section 1.401(a)(9)-9 of the Treasury regulations,
using the Participant’s and spouse’s attained ages as of the Participant’s and spouse’s birthdays in the distribution calendar year. 

3.2. Lifetime Required Minimum Distributions Continue Through Year of Participant’s Death. Required minimum distributions will be determined under this
section 3 beginning with the first distribution calendar year and up to and including the distribution calendar year that includes the Participant’s date of death 

Section 4. Required Minimum Distributions After Participant’s Death. 

4.1. Death On or After Date Distributions Begin. 

(a) Participant Survived by Designated Beneficiary. If the Participant dies on or after the date distributions begin and there is a designated
Beneficiary, the minimum amount that will be distributed for each distribution calendar year after the year of the Participant’s death is the quotient obtained by dividing the Participant’s account balance by the longer of the remaining
life expectancy of the Participant or the remaining life expectancy of the Participant’s designated Beneficiary, determined as follows: 

(1) The Participant’s remaining life expectancy is calculated using the age of the Participant in the year of death, reduced by one for
each subsequent year. 
 (2) If the Participant’s surviving spouse is the Participant’s sole designated Beneficiary, the remaining
life expectancy of the surviving spouse is calculated for each distribution calendar year after the year of the Participant’s death using the surviving spouse’s age as of the spouse’s birthday in that year. For distribution


  
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calendar years after the year of the surviving spouse’s death, the remaining life expectancy of the surviving spouse is calculated using the age of the surviving spouse as of the
spouse’s birthday in the calendar year of the spouse’s death, reduced by one for each subsequent calendar year. 
 (3) If the
Participant’s surviving spouse is not the Participant’s sole designated Beneficiary, the designated Beneficiary’s remaining life expectancy is calculated using the age of the Beneficiary in the year following the year of the
Participant’s death, reduced by one for each subsequent year. 
 (b) No Designated Beneficiary. If the Participant dies on or after the
date distributions begin and there is no designated Beneficiary as of September 30 of the year after the year of the Participant’s death, the minimum amount that will be distributed for each distribution calendar year after the year of the
Participant’s death is the quotient obtained by dividing the Participant’s account balance by the Participant’s remaining life expectancy calculated using the age of the Participant in the year of death, reduced by one for each
subsequent year. 
 4.2. Death Before Date Distributions Begin. 

(a) Participant Survived by Designated Beneficiary. If the Participant dies before the date distributions begin and there is a designated
Beneficiary, the minimum amount that will be distributed for each distribution calendar year after the year of the Participant’s death is the quotient obtained by dividing the Participant’s account balance by the remaining life expectancy
of the Participant’s designated Beneficiary, determined as provided in section 4.1. 
 (b) No Designated Beneficiary. If the
Participant dies before the date distributions begin and there is no designated Beneficiary as of September 30 of the year following the year of the Participant’s death, distribution of the Participant’s entire interest will be
completed by December 31 of the calendar year containing the fifth anniversary of the Participant’s death. 
 (c) Death of
Surviving Spouse Before Distributions to Surviving Spouse Are Required to Begin. If the Participant dies before the date distributions begin, the Participant’s surviving spouse is the Participant’s sole designated Beneficiary, and the
surviving spouse dies before distributions are required to begin to the surviving spouse under section 2.2, this section 4.2 will apply as if the surviving spouse were the Participant. 

Section 5. Definitions. 
 5.1. Designated
Beneficiary. The individual who is designated as the Beneficiary under Section 22 of the Plan and is the designated Beneficiary under section 40l(a)(9) of the Internal Revenue Code and section 1.401(a)(9)-1, Q&A-4, of the Treasury
regulations. 

  
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 5.2. Distribution calendar year. A calendar year for which a minimum distribution is required. For
distributions beginning before the Participant’s death, the first distribution calendar year is the calendar year immediately preceding the calendar year which contains the Participant’s required beginning date. For distributions beginning
after the Participant’s death, the first distribution calendar year is the calendar year in which distributions are required to begin under section 2.2. The required minimum distribution for the Participant’s first distribution calendar
year will be made on or before the Participant’s required beginning date. The required minimum distribution for other distribution calendar years, including the required minimum distribution for the distribution calendar year in which the
Participant’s required beginning date occurs, will be made on or before December 31 of that distribution calendar year. 
 5.3. Life expectancy.
Life expectancy as computed by use of the Single Life Table in section 1.401(a)(9)-9 of the Treasury regulations. 
 5.4. Participant’s account
balance. The account balance as of the last valuation date in the calendar year immediately preceding the distribution calendar year (valuation calendar year) increased by the amount of any contributions made and allocated or forfeitures allocated
to the account balance as of dates in the valuation calendar year after the valuation date and decreased by distributions made in the valuation calendar year after the valuation date. The account balance for the valuation calendar year includes any
amounts rolled over or transferred to the Plan either in the valuation calendar year or in the distribution calendar year if distributed or transferred in the valuation calendar year. 

5.5 Required beginning date. The date specified in section 13(b) of the Pla 

  
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 SCHEDULE A 

MERGERS, TRANSFERS, AND RESTATEMENTS 

Alcoa Savings Plans Restructuring and Redesign 

Effective January 1, 2011, the savings plans sponsored by Alcoa Inc. were restructured and redesigned and the Participants covered under the Alcoa Savings
Plan for Subsidiaries and Affiliate Employees were spun off and transferred from that plan to this Plan. 
 Merger of Alcoa Commercial Windows LLC
401(K) Retirement Savings Plan 
 Effective January 1, 2011, the Alcoa Commercial Windows LLC 401(k) Plan was merged into this Plan. 

Transfer of TRACO Salaried and Hourly Employees from to the Salaried and Hourly Non-Bargaining Plans 

Effective as of the end of business on December 31, 2011, upon the cessation of their participation in this Plan, the amounts standing to the credit in
accounts in this Plan for Alcoa Commercial Windows LLC (“TRACO”) Salaried and Hourly Participants are transferred to accounts under the Alcoa Retirement Savings Plan for Salaried Employees (“Salaried Savings Plan”) and the Alcoa
Retirement Savings Plan for Hourly Non-Bargaining Employees (“Hourly Non-Bargaining Plan”), respectively, and the liability to pay the benefits of the TRACO employees that were accrued under this Plan become the liability of the Salaried
and the Hourly Non-Bargaining Plans. 
 For purposes of transferring the TRACO Salaried and Hourly Participants’ Accounts, each participant’s
account balance in the investment funds of this Plan are automatically transferred to the identical funds in the Salaried and Hourly Non-Bargaining Plans. 

Conversion of Certain Employees Tucson, Arizona; Tracy, California; and Waco, Texas from Salaried to Hourly 

Effective after August 1, 2015, certain salaried employees of Huck International, Inc. (Company Code: T41) located in Tucson, Arizona (Location Code: TAK)
and Waco, Texas (Location Code: WTK) and certain salaried employees of Alcoa Global Fasteners, Inc. (Company Code: 86) located in Tracy California (Location Code: TCA), will convert from salaried (S) to hourly (H) employees and will
continue to participate in the Plan. 
 2015 Restatment of Plan 

The Plan was amended and restated effective January 1, 2015, to incorporate all amendments adopted to such date and to reflect provisions required by
applicable law and regulatory guidance. 
 Transfer of Certain Firth Rixson Inc., Employee Savings Plan Participants 

Effective December 31, 2015, certain actively employed Participants covered under the Firth Rixson Inc., Employee Savings Plan (“Firth Plan”)
were spun off and transferred from the Firth Plan to this Plan effective January 1, 2016. Upon the cessation of their participation in the Firth Plan, the account balances in the Firth Plan for these Participants were transferred to accounts in
this Plan, and each Participant’s account balance in this Plan was initially 

  
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invested in the QDIA based on the Participant’s age at the time of the transfer. Each Participant’s pre-tax deferral election on file with the Firth Plan will transfer to the Plan
without further action on the part of the participant; provided, however, that any pre-tax deferral election on file in excess of twenty-five percent (25%) will be limited and modified to equal twenty-five percent (25%) due to the existing
maximum pre-tax deferral election in the Plan. New hires into this group also will participate in this Plan. 

  
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 SCHEDULE B 

ALCOA RETIREMENT SAVINGS PLAN FOR FASTENER SYSTEMS 

EMPLOYEES 
 PARTICIPATING
EMPLOYERS, PARTICIPATING EMPLOYER CONTRIBUTIONS 
 (MATCH), AND EMPLOYER RETIREMENT INCOME CONTRIBUTIONS (ERIC) 

 

													
	 Company
Code
	  	 Company Description
	  	 *EE
Type
	  	 LOC
	  	 Location Description
	  	 Match
	  	 ERIC

	86	  	Alcoa Global Fasteners, Inc.	  	S	  	CAC	  	Carmel, Indiana (Recoil)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	COA	  	City of Industry,CA(Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	COA	  	City of Industry,CA(Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	FUL	  	Fullerton,CA (Fairchild 1)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	FUL	  	Fullerton,CA (Fairchild 1)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	FUN	  	Fullerton,CA (Fairchild 2)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	FUN	  	Fullerton,CA (Fairchild 2)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	SBD	  	South Bay,CA (Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	SBD	  	South Bay,CA (Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	SIV	  	Simi Valley,CA (Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	SIV	  	Simi Valley,CA (Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	STG	  	Stoughton,MA(Marson)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	STG	  	Stoughton,MA(Marson)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	TRC	  	Torrance,California(Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	TRC	  	Torrance,California(Fairchild)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	H	  	TCA	  	Tracy, California (effective August 1, 2015)	  	0.5000	  	Y
	86	  	Alcoa Global Fasteners, Inc.	  	S	  	TCA	  	Tracy, California	  	0.5000	  	Y
	810	  	Firth Rixson, Inc.	  	H	  	ROC	  	Rochester, New York (effective January 1, 2016)	  	0.5000	  	Y
	810	  	Firth Rixson, Inc.	  	S	  	ROC	  	Rochester, New York (effective January 1, 2016)	  	0.5000	  	Y
	814	  	Forged Metals, Inc.	  	H	  	FON	  	Fontana, California (effective January 1, 2016)	  	0.5000	  	Y‡
	814	  	Forged Metals, Inc.	  	S	  	FON	  	Fontana, California (effective January 1, 2016)	  	0.5000	  	Y‡
	673	  	Republic Fastener Mfg. Corp.	  	H	  	NPP	  	Newbury Park, CA (Republic)	  	0.5000	  	Y‡
	673	  	Republic Fastener Mfg Corp.	  	S	  	NPP	  	Newbury Park, California (Republic)	  	0.5000	  	Y‡


  
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	674	  	J.W. Manufacturing, Inc.	  	H	  	NPJ	  	Newbury Park, CA (JW MFG)	  	0.5000	  	Y‡
	674	  	J.W. Manufacturing, Inc.	  	S	  	NPJ	  	Newbury Park, California (JW MFG)	  	0.5000	  	Y‡
	T31	  	Huck Patents, Inc.	  	S	  	CCK	  	Carson, California (Huck)	  	0.5000	  	Y
	T31	  	Huck Patents, Inc.	  	S	  	TAK	  	Tucson, Arizona (Huck)	  	0.5000	  	Y
	T41	  	Huck International, Inc.	  	H	  	CCK	  	Carson, California (Huck)	  	0.5000	  	Y
	T41	  	Huck International, Inc.	  	S	  	CCK	  	Carson, California (Huck)	  	0.5000	  	Y
	T41	  	Huck International, Inc.	  	S	  	KNK	  	Kingston, New York (Huck)	  	0.5000	  	Y
	T41	  	Huck International, Inc.	  	H	  	TAK	  	Tucson, Arizona (Huck) (Effective August 1, 2015)	  	0.5000	  	Y
	T41	  	T41 - Huck International, Inc.	  	S	  	TAK	  	Tucson, Arizona (Huck)	  	0.5000	  	y
	T41	  	Huck International, Inc.	  	H	  	WTK	  	Waco, Texas (Huck) (Effective August 1, 2015)	  	0.5000	  	Y
	T41	  	Huck International, Inc.	  	S	  	WTK	  	Waco, Texas (Huck)	  	0.5000	  	Y
	812	  	Schlosser Forge Company	  	H	  	FNT	  	Fontana, California (effective January 1, 2016)	  	0.5000	  	Y‡
	812	  	Schlosser Forge Company	  	S	  	FNT	  	Fontana, California (effective January 1, 2016)	  	0.5000	  	Y‡
	812	  	Schlosser Forge Company	  	H	  	RCH	  	Rancho Cucamonga, California (effective January 1, 2016)	  	0.5000	  	Y‡
	812	  	Schlosser Forge Company	  	S	  	RCH	  	Rancho Cucamonga, California (effective January 1, 2016)	  	0.5000	  	Y‡
	812	  	Schlosser Forge Company	  	H	  	RNV	  	Reno, Nevada (effective January 1, 2016)	  	0.5000	  	Y‡
	812	  	Schlosser Forge Company	  	S	  	RNV	  	Reno, Nevada (effective January 1, 2016)	  	0.5000	  	Y‡
	675	  	Valley Todeco Inc.	  	H	  	VTC	  	Valley Todeco, CA	  	0.5000	  	Y‡
	675	  	Valley Todeco Inc.	  	S	  	VTC	  	Valley Todeco, CA	  	0.5000	  	Y‡

  

	*	S = Salaried, H = Hourly 


	‡	Irrespective of date of hire 

 DISCRETIONARY CONTRIBUTIONS 

There are no employees currently accruing Discretionary Contributions. 

RESTRICTED DISCRETIONARY CONTRIBUTIONS 

There are no employee groups currently accruing Restricted Discretionary Contributions. 

  
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