Exhibit 10m-4
As of March 31, 2006       

Rogers Corporation
One Technology Drive
Rogers, Connecticut 06263

Attn: Robert M. Soffer
 

Re: Multicurrency Revolving Credit Agreement - Fourth Amendment

Dear Mr. Soffer:
 
Reference is hereby made to that certain Multicurrency Revolving Credit
Agreement dated as of December 8, 2000 by and among Rogers Corporation (the
“Borrower”), each of the Banks listed on Schedule 1 thereto including Bank of
America, N.A., a national banking association, as successor by merger to Fleet
National Bank (the “Banks”) and Bank of America, N.A., successor by merger to
Fleet National Bank, as Agent (the “Agent”), as amended from time to time (as
amended, the "Credit Agreement"). Capitalized terms which are used herein
without definition and which are defined in the Credit Agreement shall have the
same meanings herein as in the Credit Agreement.
 
The Borrower has requested that the Banks amend Section 7.4(a) of the Credit
Agreement, and this letter is to confirm that the Borrower and the Banks have
agreed to amend, and such Section is hereby amended and restated in its entirety
to read as follows:
 
“(a) as soon as practicable, but in any event not later than ninety (90) days
after the end of each fiscal year of the Borrower, the consolidated balance
sheet of the Borrower and its Subsidiaries, as at the end of such year, and the
related consolidated statement of income and consolidated statement of cash flow
for such year, each setting forth in comparative form the figures for the
previous fiscal year and all such consolidated statements to be in reasonable
detail, prepared in accordance with generally accepted accounting principles,
and certified without qualification (other than a qualification regarding
changes in generally accepted accounting principles) by Ernst & Young LLP or by
other independent certified public accountants satisfactory to the Agent,
together with a written statement from such accountants to the effect that they
have examined the relevant sections of this Credit Agreement, and that, in
making the examination necessary to said certification, they have obtained no
knowledge of any Default or Event of Default under §9 of this Credit Agreement,
or, if such accountants shall have obtained knowledge of any then existing
Default or Event of Default under any of such sections they shall disclose in
such statement any such Default or Event of Default; provided that such
accountants shall not be liable to the Banks for failure to obtain knowledge of
any Default or Event of Default;”
 
 
 

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Except as expressly amended by this letter agreement, all terms, conditions and
covenants contained in the amended Credit Agreement are hereby ratified and
shall be and remain in full force and effect.
 
This letter agreement shall become effective as of the date first written
above. This letter supersedes any and all of our prior communications among the
parties hereto, if any, regarding the subject of this letter, except as to prior
amendments to the Credit Agreement and except for the March 24, 2006 waiver
granted by the Banks to the Borrower relative to the Credit Agreement which
shall be and shall remain in full force and effect.
 
THIS LETTER AGREEMENT SHALL BE CONSTRUED AND ENFORCED IN ACCORDANCE WITH, AND
THE RIGHTS OF THE PARTIES SHALL BE GOVERNED BY, THE LAW OF THE COMMONWEALTH OF
MASSACHUSETTS EXCLUDING CHOICE-OF-LAW PRINCIPLES OF THE LAW OF SUCH STATE THAT
WOULD REQUIRE THE APPLICATION OF THE LAWS OF A JURISDICTION OTHER THAN
MASSACHUSETTS. 

This letter agreement may be executed in any number of counterparts, but all
such counterparts shall together constitute but one instrument. Execution of
this letter agreement by any of the parties may be evidenced by way of a faxed
transmission of such party’s signature and such faxed signature shall be deemed
to constitute the original signature of such party to this letter agreement.

 
[Remainder of page intentionally blank. Next page is signature page.]
 
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If the foregoing is in accordance with your understanding, please confirm your
agreement to the amendment set forth herein by signing this letter in the space
indicated below.
 

 
Very Truly Yours,
             
BANK OF AMERICA, N.A.
     
Individually and as Agent
                     
BY:
/s/ Matthew E. Hummel     Name: Matthew E. Hummel     Title: Senior Vice
President                  
CITIZENS BANK OF CONNECTICUT
                 
BY:
      Name:     Title:

 
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Very Truly Yours,
             
BANK OF AMERICA, N.A.
     
Individually and as Agent
                     
BY:
      Name:     Title:                  
CITIZENS BANK OF CONNECTICUT
                 
BY:
/s/ Patricia D. Donnelly     Name: Patricia D. Donnelly     Title: Vice
President

 

[Signature Page to Fourth Amendment to Rogers Credit Agreement]
 
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Accepted and Agreed:
ROGERS CORPORATION
           
By: 
 
/s/ Robert M. Soffer
 
Name: Robert M. Soffer
 
Title: Vice President, Treasurer and Secretary
         
Guarantors:
         
ROGERS L-K CORP.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
     
TL PROPERTIES, INC.
           
By:
 
 /s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
     
ROGERS SPECIALTY MATERIALS
CORPORATION
               
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
     
ROGERS JAPAN INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary

 
[Signature Page to Fourth Amendment to Rogers Credit Agreement]
 
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ROGERS SOUTHEAST ASIA, INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
     
ROGERS TAIWAN, INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
     
ROGERS KOREA, INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
           
ROGERS TECHNOLOGIES
SINGAPORE, INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
           
ROGERS CIRCUIT MATERIALS
INCORPORATED
               
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary

 
[Signature Page to Fourth Amendment to Rogers Credit Agreement]
 
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ROGERS CHINA, INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary
           
ROGERS KF, INC.
           
By: 
 
/s/ Robert M. Soffer
   
Name: Robert M. Soffer
   
Title: Vice President, Treasurer and
   
Secretary

 
[Signature Page to Fourth Amendment to Rogers Credit Agreement]
 
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