EX-4.2



 Exhibit 4.2 
  

 
 HECLA MINING COMPANY 

AND EACH OF THE GUARANTORS PARTY HERETO 

6.875% SENIOR NOTES DUE 2021 
  

 
 SUPPLEMENTAL
INDENTURE 
 Dated as of April 14, 2014 
  

 
 THE BANK OF
NEW YORK MELLON TRUST COMPANY, N.A. 
 Trustee 
  

 







 THIS SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of
April 14, 2014, is by and among Hecla Mining Company, a Delaware corporation (the “Company”), the Guarantors listed on the signature page hereof (the “Guarantors”), and The Bank of New York Mellon Trust
Company, N.A., and any and all successors thereto, as trustee (the “Trustee”). 
 WHEREAS, the Company, the Guarantors and
the Trustee have executed and delivered that certain Indenture dated as of April 12, 2013 (the “Indenture”), providing for the issuance of the 6.875% Senior Notes due 2021 of the Company (the “Notes”); 

WHEREAS, the Indenture provides that the Company may, subject to compliance with Section 4.09 of the Indenture, issue Additional Notes;

 WHEREAS, the Company has complied with Section 4.09 of the Indenture; 

WHEREAS, Section 9.01(6) of the Indenture provides that the Indenture may be amended or supplemented without the consent of the Holders
to provide for the issuance of Additional Notes in accordance with the limitations set forth in the Indenture; 
 WHEREAS, all things
necessary to make the New Notes (as defined below), when executed by the Company, as applicable, and authenticated by the Trustee and issued upon the terms and subject to the conditions set forth herein and in the Indenture against payment therefor,
the valid, binding and legal obligations of the Company and to make this Supplemental Indenture a valid, binding and legal agreement of the Company and the Guarantors, have been done; 

WHEREAS, the Company and the Guarantors have been authorized by resolutions of their respective Boards of Directors to enter into this
Supplemental Indenture; and 
 WHEREAS, it is provided in Section 9.04 of the Indenture that a supplemental indenture becomes effective
in accordance with its terms and thereafter binds every Holder of the Initial Notes and/or Additional Notes. 
 NOW, THEREFORE, in
consideration of the above premises, each party hereby agrees for the benefit of the others and for the equal and ratable benefit of the Holders, as follows: 

ARTICLE 1 
 AUTHORIZATION
AND ISSUANCE OF NEW NOTES 
 Section 1.1 Authorization and Issuance of New Notes. Pursuant to
Section 2.02 of the Indenture, on and subsequent to the date hereof, the Company shall issue an aggregate $7,478,000 principal amount of Additional Notes (the “New Notes”), which will have identical terms as the Initial Notes,
other than with respect to the date of issuance and the issue price. In accordance with the Indenture, the Initial Notes and the New Notes will be treated as a single class for all purposes under the Indenture. The New Notes will be issued initially
in the form of Restricted Definitive Notes. 







 ARTICLE 2 

MISCELLANEOUS PROVISIONS 

Section 2.1 Defined Terms. For all purposes of this Supplemental Indenture, except as otherwise defined or unless the
context otherwise requires, terms used in capitalized form in this Supplemental Indenture and defined in the Indenture have the meanings specified in the Indenture. 

Section 2.2 Continuing Agreement. Except as herein amended, all terms, provisions and conditions of the Indenture, all
Exhibits thereto and all documents executed in connection therewith shall continue in full force and effect and shall remain enforceable and binding in accordance with their terms. 

Section 2.3 Governing Law. THIS SUPPLEMENTAL INDENTURE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF
THE STATE OF NEW YORK. 
 Section 2.4 Successors. All agreements of the Issuers in this Supplemental Indenture and the
Notes shall bind their respective successors. All agreements of the Trustee in this Supplemental Indenture shall bind its successors. 

Section 2.5 Duplicate Originals. All parties may sign any number of copies of this Supplemental Indenture. Each signed copy
shall be an original, but all of them together shall represent the same agreement. It is the express intent of the parties to be bound by the exchange of signatures on this Supplemental Indenture via telecopy or other form of electronic
transmission. 
 Section 2.6 Severability. In case any one or more of the provisions in this Supplemental Indenture shall
be held invalid, illegal or unenforceable, in any respect for any reason, the validity, legality and enforceability of any such provision in every other respect and of the remaining provisions shall not in any way be affected or impaired thereby, it
being intended that all of the provisions hereof shall be enforceable to the full extent permitted by law. 
 Section 2.7 Trustee
Disclaimer. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made
solely by the Issuers. 
 Section 2.8 Effect of Headings. The Section headings herein are for convenience only and
shall not affect the construction thereof. 
 [THE REMAINDER OF THIS PAGE IS INTENTIONALLY LEFT BLANK] 







 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly
executed as of the day and year first written above. 
  

			
	ISSUER
	
	    HECLA MINING COMPANY
		
	    By:	 	/s/ David C. Sienko
		 	David C. Sienko
		 	Vice President and General Counsel
	
	 GUARANTORS

	
	     HECLA LIMITED

		
	     By:
	 	 /s/ Lawrence P. Radford

		 	 Lawrence P. Radford

		 	 Vice President

	
	     HECLA ADMIRALTY COMPANY

		
	     By: 
	 	 /s/ Lawrence P. Radford

		 	 Lawrence P. Radford

		 	 Vice President

	
	     HECLA SILVER VALLEY, INC.

		
	     By: 
	 	 /s/ Lawrence P. Radford

		 	 Lawrence P. Radford

		 	 Vice President

	
	     HECLA MC SUBSIDIARY, LLC

		
	     By:
	 	 /s/ Alan MacPhee

		 	 Alan MacPhee

		 	 President



 Signature Pages to Supplemental Indenture 







 
			
	RHL HOLDINGS, INC.
		
	By:	 	 /s/ Alan MacPhee

		 	Alan MacPhee
		 	Vice President & Treasurer
	
	RIO GRANDE SILVER, INC.
		
	By:	 	 /s/ James A. Sabala

		 	James A. Sabala
		 	Vice President & Treasurer
	
	SILVER HUNTER MINING COMPANY
		
	By:	 	 /s/ James A. Sabala

		 	James A. Sabala
		 	Vice President & Treasurer
	
	HECLA ALASKA LLC
		
	By:	 	 /s/ James A. Sabala

		 	James A. Sabala
		 	Manager
	
	HECLA GREENS CREEK MINING COMPANY
		
	By:	 	 /s/ Lawrence P. Radford

		 	Lawrence P. Radford
		 	Vice President
	
	HECLA JUNEAU MINING COMPANY
		
	By:	 	 /s/ Lawrence P. Radford

		 	Lawrence P. Radford
		 	Vice President
	
	BURKE TRADING INC.
		
	By:	 	 /s/ James A. Sabala

		 	James A. Sabala
		 	Vice President & Treasurer


 Signature Pages to Supplemental Indenture 







 
			
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	 By:
	 	 /s/ Teresa Petta

		 	 Name: Teresa Petta

		 	 Title: Vice President



 Signature Pages to Supplemental Indenture