Document:

Supplemental Indenture

 Exhibit 4.2 
 SUPPLEMENTAL INDENTURE 
 This Supplemental Indenture, dated as of February 27, 2008 (this
“Supplemental Indenture”), among Actuant International Holdings, Inc., a Delaware corporation (the “New Guarantor”), Actuant Corporation, a Wisconsin corporation (the “Company”), each other existing
Guarantor under the Indenture referred to below (the “Guarantors”) and U.S. Bank National Association, as trustee (the “Trustee”). 
 WITNESSETH 
 WHEREAS, the Company, the Guarantors and
the Trustee are parties to an Indenture dated as of June 12, 2007 (as may be supplemented from time to time, the “Indenture”), providing for the issuance of the Company’s 6 7/8% Senior Notes due 2017 (the “Notes”); 
 WHEREAS, pursuant to Section 4.17 of the Indenture, if any Domestic Subsidiary that is not a Guarantor guarantees any Debt of the Company under any Credit Facility in excess of $25.0 million, such Domestic Subsidiary is required to
execute and deliver to the Trustee a supplemental indenture pursuant to which such Domestic Subsidiary shall fully and unconditionally guarantee the Notes and the payment obligations of the Company under the Notes and the Indenture on the terms set
forth in the Indenture; 
 WHEREAS, as of the date hereof, the New Guarantor guarantees the Debt of the Company under the Credit Agreement;
and 
 WHEREAS, pursuant to Section 9.1(10) of the Indenture, the Trustee is authorized to execute and deliver this Supplemental
Indenture. 
 NOW, THEREFORE, for and in consideration of the foregoing premises, it is mutually covenanted and agreed, for the equal and
proportionate benefit of all Holders of the Notes, as follows: 
 1. Capitalized Terms. Capitalized terms used herein without
definition shall have the meanings assigned to them in the Indenture. 
 2. Agreement to Become Guarantor. The New Guarantor hereby
jointly and severally with each other Guarantor, fully and unconditionally guarantees the Notes and payment obligations of the Company under the Notes and the Indenture on the terms and subject to the conditions set forth in Article 11 of the
Indenture and agrees to be bound by all other provisions of the Indenture and the Notes applicable to a “Guarantor” therein. 
 3.
Ratification of Indenture; Supplemental Indenture Part of Indenture. Except as expressly amended hereby, the Indenture is in all respects ratified and confirmed and all the terms, conditions and provisions thereof shall remain in full force
and effect. This Supplemental Indenture shall form a part of the Indenture for all purposes, and every holder of Notes heretofore or hereafter authenticated and delivered shall be bound hereby. 
  

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 4. Governing Law. This Supplemental Indenture shall be governed by, and construed in accordance
with, the laws of the State of New York. 
 5. Counterparts. The 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. 
 6. Effect of Headings. The
section headings herein are for convenience only and shall not affect the construction hereof. 
 7. The Trustee. 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 Company and the New
Guarantor. 
 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first
above written. 
  

			
	ACTUANT INTERNATIONAL HOLDINGS, INC.
		
	By:	 	 /s/ Terry M. Braatz

	Name:	 	Terry M. Braatz
	Title:	 	Treasurer
	
	ACTUANT CORPORATION
		
	By:	 	 /s/ Terry M. Braatz

	Name:	 	Terry M. Braatz
	Title:	 	Treasurer
	
	U.S. BANK NATIONAL ASSOCIATION,
		 	as Trustee
		
	By:	 	 /s/ Richard Prokosch

	Name:	 	Richard Prokosch
	Title:	 	Vice President

  

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	ACME ELECTRIC CORPORATION
	ACTOWN ELECTROCOIL, INC.
	ATLANTIC GUEST, INC.
	B.W. ELLIOTT MANUFACTURING CO., LLC
	COILS HOLDING, INC.
	GB TOOLS AND SUPPLIES, INC.
	KEY COMPONENTS, INC.
	KEY COMPONENTS, LLC
	MAXIMA HOLDING COMPANY, INC.
	MAXIMA HOLDINGS – EUROPE, INC.
	MAXIMA TECHNOLOGIES & SYSTEMS, LLC
	PRECISION SURE-LOCK, INC.
	PSL HOLDINGS, INC.
	VERSA TECHNOLOGIES, INC.
		
	By:	 	 /s/ Terry M. Braatz

	Name:	 	Terry M. Braatz
	Title:	 	Treasurer
	
	ENGINEERED SOLUTIONS, L.P.
	
	By: Versa Technologies, Inc., its general partner
		
	By:	 	 /s/ Terry M. Braatz

	Name:	 	Terry M. Braatz
	Title:	 	Treasurer

  

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	APPLIED POWER INVESTMENTS II, INC.
		
	By:	 	 /s/ Patrick C. Dorn

	Name:	 	Patrick C. Dorn
	Title:	 	President

  

 4Amended and Restated Charter for the Audit Committee

 Exhibit 10.41 
 AMENDED AND RESTATED CHARTER 
 AUDIT COMMITTEE 
 of the 
 BOARD OF DIRECTORS

 of 
 ALLIANCE
RESOURCE MANAGEMENT GP, LLC 
 Adopted June 14, 2000 
 Amended and Restated July 25, 2003 
 Amended and Restated March 10,
2005 
 Amended and Restated February 21, 2007 
 Amended and Restated February 22, 2008 
  

	I.	PURPOSE 

 The purpose of the Audit Committee
(the “Committee”) of the Board of Directors (the “Board”) of Alliance Resource Management GP, LLC (“MGP”) is to assist the Board in fulfilling its oversight responsibilities with respect to the management of
MGP and its activities on behalf of Alliance Resource Partners, L.P. (together with its subsidiaries, the “Partnership”). In collaboration with management, the Committee will assist the Board by reviewing the following: 
 (A) filings by the Partnership with the Securities and Exchange Commission (the “SEC”) under the Securities Act of 1933 and the Securities
Exchange Act of 1934 (the “Exchange Act”) (i.e., Forms 10-K and 10-Q); 
 (B) press releases and other communications by the
Partnership to the public concerning earnings, financial condition and results of operations, including communications regarding changes in distribution policies or practices affecting the holders of Partnership units, unless such review was
undertaken by the Board; 
 (C) the Partnership’s systems of internal controls regarding finance and accounting that management and the
Board have established; and 
 (D) the Partnership’s auditing, accounting and financial reporting processes generally. 
 Consistent with this review function, the Committee shall encourage continuous improvement of, and shall foster adherence to, the Partnership’s
policies, procedures and practices concerning financial reporting and other public disclosure at all levels, as established by MGP. 
 The
specific duties and responsibilities of the Committee are enumerated in Section IV of this Charter. 

	II.	COMPOSITION 

 The Committee shall be comprised of
three or more directors as determined by the Board, who shall satisfy the applicable requirements, including as to independence, experience, and financial expertise of (a) the Sarbanes-Oxley Act of 2002, and rules promulgated by the SEC
thereunder, (b) the National Association of Securities Dealers Marketplace Rules, and (c) any other applicable laws, rules or regulations. Without limiting the foregoing, each director shall be free from any relationship that, in the
opinion of the Board, would interfere with the exercise of his or her independent judgment as a member of the Committee. 
 The members of
the Committee shall be elected by the Board at the annual organizational meeting of the Board held in December of each year (or at such other time as the Board may determine), or until their successors shall be duly elected and qualified.
Unless a Chairperson is elected by the full Board, the members of the Committee may designate a Chairperson by majority vote of the full Committee membership. 
  

	III.	MEETINGS 

 The Committee shall meet as frequently as
circumstances dictate, but not less than four times annually. Except as otherwise provided herein, a quorum for meetings of the Committee shall be a majority of the members of the Committee. 
 As part of its job to foster open communication, the Committee shall meet periodically with management and the independent registered public accounting
firm (the “independent accountants”) in separate sessions to discuss any matters that the Committee or either of these groups believes should be discussed privately. The Committee may also invite to participate in any meeting, any member
of senior management, the independent accountants or others, as desired by the Committee. 
 In addition to the regular meetings of the
Committee, the Committee shall meet at least four times annually with the independent accountants and management to discuss and review each of the Partnership’s quarterly and annual financial statements and reports prior to the public
announcement of financial results and the filing of quarterly and year-end reports with the Commission (consistent with the provisions of Section IV below). A quorum for these meetings shall be one of the members of the Committee. 
 The Chairperson shall set the agenda of each meeting and arrange for the distribution of the agenda, together with supporting material, to the Committee
members prior to each meeting. The Chairperson will also cause minutes of each meeting to be prepared and circulated to the members of the Committee. The Committee may meet via telephone conference calls. 
  

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	IV.	RESPONSIBILITIES AND DUTIES 

 The duties and
responsibilities of a member of the Committee shall be in addition to his or her duties and responsibilities as a member of the Board of Directors. To fulfill its oversight responsibilities and duties, (a) the Committee, (b) a
sub-committee thereof as may be designated by the Chairperson or (c) an individual member of the Committee to whom the Committee has delegated expressly its authority (for example, the review of Form 8-Ks prior to filing with the SEC) shall
undertake the following: 
 Documents/Reports Review 
 1.
Review and discuss with management and the independent accountants the quality and integrity of the Partnership’s annual and interim financial statements and any reports or other financial information prior to submission to the SEC, or the
public, including any certification, report, opinion or review rendered by the independent accountants. 
 2. Review and discuss with management the regular
internal reports of the independent accountants and controllers, along with management’s response to such reports. 
 3. Review earnings with financial
management and the independent accountants prior to the release of earnings to the public. 
 4. Provide any audit committee-related disclosure in filings
with the Securities and Exchange Commission or otherwise required by applicable securities laws, rules and regulations or by the rules of any securities exchange or market on which the securities of the Partnership are listed or quoted. 

Independent Accountants 
 5. Approve the appointment and
compensation of the independent accountants and provide oversight of the work of the independent accountants (including resolution of disagreements between management and the independent accountants regarding financial reporting or the preparation
of the financial statements) for the purpose of preparing or issuing an audit report or related work. 
 6. Approve all auditing services and permitted
non-audit services to be provided to the Company or the Partnership by the independent accountants prior to the commencement thereof, and approve the fees and other compensation to be paid to the independent accountants in connection therewith. The
Committee may delegate, subject to any rules or limitations it may deem appropriate, to one or more designated members of the Committee the authority to grant such approvals; provided, however, that the decisions of any member to whom authority is
so delegated to approve an activity shall be presented to the full Committee at its next scheduled meeting. 
 7. On an annual basis, review and discuss with
the independent accountants all significant relationships the independent accountants have with the Partnership and MGP and their 

  

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subsidiaries in order to determine the accountants’ independence. As part of such a review process, the Committee shall receive the written disclosures
and an annual statement from the independent accountants relating to their independence as required by Independent Standards Board Standard No. l and make inquiries to the independent accountants as to any matters disclosed therein. 

8. Periodically consult with the independent accountants outside of the presence of management about internal controls and the fair statement of the
organization’s financial statements in all material respects. 
 9. Review the annual audit plan of the independent accountants and evaluate their
performance and adherence to the prior year’s audit plan. 
 10. At least annually, review with the independent accountants as to (a) all critical
accounting policies to be used, (b) all alternative treatments of financial information within generally accepted accounting principles that have been discussed with management, the ramifications of the use of such alternative disclosures and
treatments and the treatment preferred by the independent accountants, and (c) other material written communications between the independent accountants and management, including management letters and schedules of unadjusted differences.

 11. On an annual basis, review with the independent accountants concerning their internal quality control review of the firm, any inquiry or investigation
by governmental or professional authorities within the preceding five years respecting one or more independent audits carried out by the firm and any steps taken to address such issues. 
 12. Review the experience and qualifications of the senior members of the independent accounting team. 
 13. Require the
rotation of the lead audit partner on a regular basis in accordance with the requirements of the Exchange Act. 
 14. Review the hiring by the Partnership or
MGP or any of their subsidiaries of employees or former employees of the independent accountants who participated in any capacity in the audit of the Partnership. 
 15. Review the performance of the independent accountants and dismiss the independent accountants if circumstances warrant. 
 Financial
Reporting Processes 
 16. In consultation with the independent accountants and the controllers, review the integrity of the Partnership’s financial
reporting processes, both internal and external. 
 17. Consider the independent accountants’ judgments about the quality and appropriateness of the
Partnership’s accounting principles as applied in its financial reporting. 
  

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 18. Consider the quality of and approve any major changes to the Partnership’s accounting principles and practices
as suggested by the independent accountants, management, or the controllers. 
 Process Improvement 
 19. Establish regular and separate systems of reporting to the Committee by each of management, the independent accountants and the chief accounting officer regarding any
significant judgments made in management’s preparation of the financial statements and the view of each as to appropriateness of such judgments. 
 20.
Following completion of the annual audit, review (separately, as appropriate and as may be required) with each of management, the independent accountants, manager-internal audit, and the chief accounting officer any significant difficulties
encountered during the course of the audit, including any restrictions on the scope of work or access to required information. 
 21. Review any significant
disagreement among management, the independent accountants or the chief accounting officer in connection with any public announcement of financial results or the preparation of the quarterly and annual financial statements. 
 22. Review with the independent accountants, the chief accounting officer and management the extent to which changes or improvements in financial or accounting
practices, as approved by the Committee, have been implemented. This review will be conducted at an appropriate time subsequent to implementation of changes or improvements, as decided by the Committee. 
 23. Review periodically with the General Counsel, legal and regulatory matters that could have a significant effect on the Partnership’s financial statements.

 24. Review with the independent accountants, the chief accounting officer and management the effect of regulatory and accounting initiatives, as well as
off-balance sheet structures, on the Partnership’s financial statements. 
 Other 
 25. Establish procedures for (a) the receipt, retention, and treatment of complaints received by the Partnership regarding accounting, internal accounting controls, or auditing matters, and (b) the
confidential, anonymous submission by employees of concerns regarding questionable accounting or auditing matters. 
 26. Review periodically the codes of
ethics and conduct of the Company and the Partnership and the programs to monitor compliance with such codes. 
 27. Investigate any matter brought to its
attention within the scope of its duties which it deems appropriate for investigation. 
 28. Perform an annual evaluation of the Committee. 
  

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 29. Review and make recommendations to the Board to update this Charter at least annually and at other times as
conditions dictate. 
 The Committee shall have such other functions as are assigned by law, the SEC, the National Association of Securities Dealers,
MGP’s organizational documents or the Board of Directors of MGP. 
 The Committee shall have the authority to engage, and provide for payment of
compensation to, outside legal, accounting or other advisors as it deems necessary to carry out its functions. 
  

	V.	EXCULPATION 

 The following describes matters as to
which the Committee shall not have responsibilities or duties: 
 Maintenance of Books and Records 
 1. The Committee shall not be responsible for maintaining the books and records of the Partnership or for preparing the financial statements of the Partnership, which
maintenance and preparation shall be the responsibility and duty of the management. 
 Audits 
 2. The Committee shall not be responsible for planning or conducting audits of the financial statements of the Partnership, which shall be the responsibility of the
Partnership’s independent accountants. 
 Certification of Audited Financial Statements 
 3. The Committee shall not be responsible for certifying as to the accuracy or completeness of the audited financial statements of the Partnership or that the audited
financial statements are in compliance with generally accepted accounting principles. 
 Independent Investigation of Factual Matters 
 4. The Committee shall not be responsible for independent verification of factual matters represented to them, and each member of the Committee shall be entitled to rely
in good faith on the representations of management and the independent accountants. 
 Compliance with Laws 
 5. The Committee shall not be responsible for ensuring compliance with applicable laws or regulations by MGP or the Partnership. 
  

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 Amended and restated by resolution of the Board of
Directors of Alliance Resource Management GP, LLC, this 22nd day of February, 2008. 
  

	
	
	 /s/ R. Eberley Davis

	 R. Eberley Davis, Secretary

  

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