Exhibit 10(g)(1)

EXTENSION REQUEST

November 28, 2012

Citibank, N.A., as Administrative Agent

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndications Department

Ladies and Gentlemen:

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Pursuant to Section 2.21 of the Credit Agreement, Alcoa hereby requests that the
Initial Scheduled Maturity Date be extended to July 25, 2017 (the “First
Extended Maturity Date”).

Alcoa also requests that each Lender waives satisfaction of the timing
requirements to the effectiveness of the First Extension set forth in
Section 2.21 to the extent that it requires Alcoa to request an extension of the
Initial Scheduled Maturity Date by written notice to the Administrative Agent at
least forty-five (45) days prior to the one year anniversary of the Effective
Date.

Alcoa agrees to pay each Lender that agrees to extend its Commitments to the
First Extended Maturity Date an upfront fee in the amount of 0.05% of the amount
of such extending Lender’s Commitments as of the date such Lender agrees to so
extend its Commitments, such fee being earned, due and payable as of such date.

Alcoa also requests that the Credit Agreement be amended by deleting (i) “,
including but not limited to the support of Alcoa’s Commercial Paper program”
from the second WHEREAS clause in the preamble thereto, (ii) the entirety of the
“Commercial Paper” definition from Section 1.01 thereof and (iii) “, including
but not limited to the support of Alcoa’s Commercial Paper program” from
Section 3.16(b) thereof.

Alcoa hereby represents and warrants that the representations and warranties set
forth in Article III of the Credit Agreement are true and correct in all
material respects on and as of the date hereof, except to the extent such
representations and warranties expressly relate to an earlier date (in which
case they shall be true and correct in all material respects as of such earlier
date) and that no Event of Default or Default has occurred and is continuing.

[signature page follows]

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ALCOA INC. By:   /s/ Peter Hong   Name: Peter Hong   Title: Vice President and
Treasurer

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CONSENT TO EXTENSION REQUEST

December 7, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

CITIBANK, N.A.

By   /s/ Carolyn Kee   Name: Carolyn Kee   Title: Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 4, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

JPMORGAN CHASE BANK, N.A.

By   /s/ Peter S. Predun   Name: Peter S. Predun   Title: Executive Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

THE BANK OF TOKYO-MITSUBISHI

UFJ, LTD.

By   /s/ Ravneet Mumick   Name: Ravneet Mumick   Title: Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

BNP PARIBAS

By   /s/ Claudia Zarate   Name: Claudia Zarate   Title: Director By   /s/ Allan
Fordyce   Name: Allan Fordyce   Title: Managing Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

CREDIT SUISSE AG,

CAYMAN ISLANDS BRANCH

By   /s/ Alain Daoust   Name: Alain Daoust   Title: Director By   /s/ Rahul
Parmar   Name: Rahul Parmar   Title: Associate

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

GOLDMAN SACHS BANK USA

By   /s/ Mark Walton   Name: Mark Walton   Title: Authorized Signatory

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

ROYAL BANK OF CANADA

By   /s/ James Parisi   Name: James Parisi   Title: Authorized Signatory

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

Our consent is subject to receipt of payment by us of the fees described in the
Extension Request and to the occurrence of the Extended Maturity Effective Date
not later than December 31, 2012.

The terms of this letter agreement shall be governed by the laws of the State of
New York.

 

Very truly yours,

 

THE ROYAL BANK OF SCOTLAND PLC

By   /s/ Jonathan Lasner   Name: Jonathan Lasner   Title: Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 3, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof. This
consent is subject to (i) satisfactory documentation, (ii) closing within 30
calendar days from the date hereof, and (iii) our receipt on the closing date of
an extension fee equal to 5 basis points.

 

Very truly yours,

 

MORGAN STANLEY BANK, N.A.

By   /s/ Kelly Chin   Name: Kelly Chin   Title: Authorized Signatory

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

AUSTRALIA AND NEW ZEALAND

BANKING GROUP LIMITED

By   /s/ Robert Grillo   Name: Robert Grillo   Title: Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 19, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein.

 

Very truly yours,

 

THE BANK OF NEW YORK MELLON

By   /s/ William M. Feathers   Name: William M. Feathers   Title: Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

November 30, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

BANCO BILBAO VIZCAYA

ARGENTARIA, S.A.

NEW YORK BRANCH

By   /s/ Luca Sacchi   Name: Luca Sacchi   Title: Executive Director By   /s/
Paul A. Rodriguez   Name: Paul A. Rodriguez   Title: Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

November 27, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 19, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein.

 

Very truly yours,

 

U.S. BANK NATIONAL ASSOCIATION

By   /s/ Kenneth R. Fieler   Name: Kenneth R. Fieler   Title: Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 7, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

WESTPAC BANKING CORPORATION

By   /s/ Henrik Jensen   Name: Henrik Jensen   Title: Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

BANCO BRADESCO S.A.

By   /s/ Maísa de Oliveíra   Name: Maísa de Oliveíra   Title: Manager By   /s/
Mauro Lopes   Name: Mauro Lopes   Title: Manager

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 7, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 19, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein.

 

Very truly yours,

 

CREDIT AGRICOLE CORPORATE AND

INVESTMENT BANK

By   /s/ Michael Madnick   Name: Michael Madnick   Title: Managing Director By  
/s/ Brad Matthews   Name: Brad Matthews   Title: Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

INTESA SANPAOLO S.p.A. –

NEW YORK BRANCH

By   /s/ John J. Michalisin   Name: John J. Michalisin   Title: First Vice
President By   /s/ William S. Denton   Name: William S. Denton   Title: Global
Relationship Manager

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

LLOYDS TSB BANK PLC

NEW YORK BRANCH

By   /s/ Stephen Giacolone   Name: Stephen Giacolone   Title: Assistant Vice
President By   /s/ Dennis McClellan   Name: Dennis McClellan   Title: Assistant
Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 3, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

SUMITOMO MITSUI BANKING

CORPORATION

By   /s/ Shuji Yabe  

Name: Shuji Yabe

Title: Managing Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

November 29, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

BANK OF CHINA,

NEW YORK BRANCH

By   /s/ Dong Yuan  

Name: Dong Yuan

Title: Executive Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

January 8, 2013

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

CHINA MERCHANTS BANK,

NEW YORK BRANCH

By   /s/ Andrew Xuejun Mao  

Name: Andrew Xuejun Mao

Title: Assistant General Manager

By   /s/ Hui Fang  

Name: Hui Fang

Title: General Manager

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 7, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

THE NORTHERN TRUST COMPANY

By   /s/ Daniel J. Boote  

Name: Daniel J. Boote

Title: Senior Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 4, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

INDUSTRIAL AND COMMERCIAL

BANK OF CHINA LIMITED NEW YORK

BRANCH

By   /s/ Mr. Mingqiang Bi  

Name: Mr. Mingqiang Bi

Title: General Manager

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

PNC BANK, NATIONAL ASSOCIATION

By   /s/ Brett R. Schweikle  

Name: Brett R. Schweikle

Title: Senior Vice President

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 4, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 19, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein.

 

Very truly yours,

 

STANDARD CHARTERED BANK

By   /s/ Johanna Minaya  

Name: Johanna Minaya

Title: Associate Director

By   /s/ Robert K. Reddington  

Name: Robert K. Reddington

Title: Credit Documentation Manager

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 5, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

SOCIETE GENERALE

By   /s/ Linda Tam  

Name: Linda Tam

Title: Director

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 3, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

RIYAD BANK, HOUSTON AGENCY

By   /s/ William B. Shepard  

Name: William B. Shepard

Title: General Manager

By   /s/ Paul N. Travis  

Name: Paul N. Travis

Title: Vice President & Head of

          Corporate Finance

--------------------------------------------------------------------------------

CONSENT TO EXTENSION REQUEST

December 4, 2012

Alcoa Inc.

390 Park Avenue

New York, New York 10022-4608

Attention: Vice President & Treasurer

Citibank, N.A.

1615 Brett Road, Building #3

New Castle, Delaware 19720

Attention: Bank Loans Syndication Department

Reference is made to the Credit Agreement, dated as of July 25, 2011 (as amended
or otherwise modified from time to time, the “Credit Agreement”), by and among
Alcoa Inc., as Borrower, Citibank N.A., as administrative agent and the other
parties party thereto. The terms defined in the Credit Agreement are used herein
as therein defined.

Reference is made to the Extension Request dated November 28, 2012 from Alcoa to
the Administrative Agent (the “Extension Request”). We have reviewed the
Extension Request and we hereby consent and agree to (i) the extension of the
Initial Scheduled Maturity Date to July 25, 2017 and the waiver requested
therein and (ii) the amendments requested in the fifth paragraph thereof.

 

Very truly yours,

 

BANK HAPOALIM B.M.

By   /s/ James P. Surless  

Name: James P. Surless

Title: Vice President

By   /s/ Frederic S. Becker  

Name: Frederic S. Becker

Title: Senior Vice President