Document:

EX-4.18

 Exhibit 4.18 

BYLAWS 
 OF 

GLOBAL FLOW TECHNOLOGIES, INC. 

A Delaware Corporation 
 Date of
Adoption: 
 June 29, 2005 

 BYLAWS OF 

GLOBAL FLOW TECHNOLOGIES, INC. 

Article I 
 Offices

 Section 1. Registered Office. The registered office of the Corporation required by the General Corporation Law of
the State of Delaware (the “Delaware General Corporation Law”) to be maintained in the State of Delaware, shall be the registered office named in the original Certificate of Incorporation of the Corporation, or such other office as
may be designated from time to time by the Board of Directors in the manner provided by law. Should the Corporation maintain a principal office within the State of Delaware such registered office need not be identical to such principal office of the
Corporation. 
 Section 2. Other Offices. The Corporation may also have offices at such other places both within and
without the State of Delaware as the Board of Directors may from time to time determine or the business of the Corporation may require. 

Article II 

Stockholders 

Section 1. Place of Meetings. All meetings of the stockholders shall be held at the principal office of the Corporation, at
such other place within or without the State of Delaware or solely by means of remote communication as shall be specified or fixed in the notices or waivers of notice thereof. 

Section 2. Quorum; Adjournment of Meetings. Unless otherwise required by law or provided in the Certificate of
Incorporation or these bylaws, (i) the holders of a majority of the stock issued and outstanding and entitled to vote thereat, present in person or by remote communication, if any, or represented by proxy, shall constitute a quorum at any
meeting of stockholders for the transaction of business, (ii) directors shall be elected by a plurality of the votes of the shares present in person or by remote communication, if any, or represented by proxy at the meeting and entitled to vote
on the election of directors, (iii) in all matters other than election of directors, the affirmative vote of the holders of a majority of the voting power attributable to such stock present in person or by remote communication, if any, or
represented by proxy at any meeting of stockholders at which a quorum is present shall constitute the act of the stockholders, and (iv) where a separate vote by a class or classes is required, a majority of the voting power attributable to the
outstanding shares of such class or classes, present in person or by remote communication, if any, or represented by proxy shall constitute a quorum entitled to take action with respect to that vote on that matter and the affirmative vote of the
majority of the voting power attributable to the shares of such class or classes present in person or by 

  
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remote communication, if any, or represented by proxy shall be the act of such class. The stockholders present in person or by remote communication, if any, at a duly organized meeting may
continue to transact business until adjournment, notwithstanding the withdrawal of enough stockholders to leave less than a quorum. 

Notwithstanding the other provisions of the Certificate of Incorporation or these bylaws, the chairman of the meeting or the holders of a
majority of the issued and outstanding stock, present in person or by remote communication, if any, or represented by proxy, at any meeting of stockholders, whether or not a quorum is present, shall have the power to adjourn such meeting from time
to time, without any notice other than announcement at the meeting of the time and place of the holding of the adjourned meeting. If the adjournment is for more than thirty (30) days, or if after the adjournment a new record date is fixed for
the adjourned meeting, a notice of the adjourned meeting shall be given to each stockholder of record entitled to vote at such meeting. At such adjourned meeting at which a quorum shall be present in person or by remote communication, if any, or
represented by proxy, any business may be transacted which might have been transacted at the meeting as originally called. 

Section 3. Annual Meetings. An annual meeting of the stockholders, for the election of directors to succeed those whose
terms expire and for the transaction of such other business as may properly come before the meeting, shall be held at such place, within or without the State of Delaware or solely by means of remote communication, on such date, and at such time as
the Board of Directors shall fix and set forth in the notice of the meeting, which date shall be within thirteen (13) months subsequent to the later of the date of incorporation of the Corporation or the last annual meeting of stockholders.

 Section 4. Special Meetings. Unless otherwise provided in the Certificate of Incorporation, special meetings of the
stockholders for any purpose or purposes may be called at any time by the Chairman of the Board (if any), by the President or by a majority of the Board of Directors. Business transacted at a special meeting shall be confined to the purpose(s)
stated in the notice of such meeting. 
 Section 5. Record Date. For the purpose of determining stockholders entitled to
notice of or to vote at any meeting of stockholders, or any adjournment thereof, or entitled to express consent to corporate action in writing without a meeting, or entitled to receive payment of any dividend or other distribution or allotment of
any rights, or entitled to exercise any rights in respect of any change, conversion or exchange of stock or for the purpose of any other lawful action, the Board of Directors of the Corporation may fix, in advance, a date as the record date for any
such determination of stockholders, which date shall not be more than sixty (60) days nor less than ten (10) days before the date of such meeting, nor more than sixty (60) days prior to any other action. 

If the Board of Directors does not fix a record date for any meeting of the stockholders, the record date for determining stockholders
entitled to notice of or to vote at such meeting shall be at the close of business on the day next preceding the day on which notice is given, or, if in accordance with Article VIII, Section 3 of these bylaws notice is waived, at the close of
business on the day next preceding the day on which the 

  
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meeting is held. If, in accordance with Section 12 of this Article II, corporate action without a meeting of stockholders is to be taken, the record date for determining stockholders
entitled to express consent to such corporate action in writing, when no prior action by the Board of Directors is necessary, shall be the day on which the first written consent is expressed. The record date for determining stockholders for any
other purpose shall be at the close of business on the day on which the Board of Directors adopts the resolution relating thereto. 
 A
determination of stockholders of record entitled to notice of or to vote at a meeting of stockholders shall apply to any adjournment of the meeting; provided, however, that the Board of Directors may fix a new record date for the adjourned meeting.

 Section 6. Notice of Meetings. Written notice of the place, date, hour and means of remote communication, if any, by
which stockholders and proxy holders may be deemed to be present and vote at all meetings, and, in the case of a special meeting, the purpose or purposes for which the meeting is called, shall be given by or at the direction of the Chairman of the
Board (if any) or the President, the Secretary or the other person(s) calling the meeting to each stockholder entitled to vote thereat not less than ten (10) nor more than sixty (60) days before the date of the meeting. Such notice may be
delivered personally, by mail or by electronic transmission pursuant to Section 232 of the Delaware General Corporation Law. If mailed, notice is given when deposited in the United States mail, postage prepaid, directed to the stockholder at
his address as it appears on the records of the Corporation. If electronically transmitted, notice is given as provided in Section 232 of the Delaware General Corporation Law. 

Section 7. Stock List. A complete list of stockholders entitled to vote at any meeting of stockholders, arranged in
alphabetical order for each class of stock and showing the address of each such stockholder and the number of shares registered in the name of such stockholder, shall be open to the examination of any stockholder, for any purpose germane to the
meeting, during ordinary business hours for a period of at least ten (10) days prior to the meeting: (i) on a reasonably accessible electronic network, provided that the information required to gain access to such list is provided with the
notice of the meeting, or (ii) during ordinary business hours, at the principal place of business of the Corporation. If the meeting is to be held at a place, then the list shall be produced and kept at the time and place of the meeting during
the whole time thereof, and may be inspected by any stockholder who is present. If the meeting is to be held solely by means of remote communication, then the list shall also be open to the examination of any stockholder during the whole time of the
meeting on a reasonably accessible electronic network, and the information required to access such list shall be provided with the notice of the meeting. 

Section 8. Proxies. Each stockholder entitled to vote at a meeting of stockholders or to express consent or dissent to a
corporate action in writing or by electronic transmission without a meeting may authorize another person or persons to act for him by proxy. Proxies for use at any meeting of stockholders shall be filed with the Secretary, or such other officer as
the Board of Directors may from time to time determine by 

  
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resolution, before or at the time of the meeting. All proxies shall be received and taken charge of and all ballots shall be received and canvassed by the secretary of the meeting who shall
decide all questions touching upon the qualification of voters, the validity of the proxies, and the acceptance or rejection of votes, unless an inspector or inspectors shall have been appointed by the chairman of the meeting, in which event such
inspector or inspectors shall decide all such questions. 
 No proxy shall be valid after three (3) years from its date, unless the
proxy provides for a longer period. Each proxy shall be revocable unless expressly provided therein to be irrevocable and coupled with an interest sufficient in law to support an irrevocable power. 

Should a proxy designate two or more persons to act as proxies, unless such instrument shall provide the contrary, a majority of such persons
present at any meeting at which their powers thereunder are to be exercised shall have and may exercise all the powers of voting or giving consents thereby conferred, or if only one be present, then such powers may be exercised by that one; or, if
an even number attend and a majority do not agree on any particular issue, each proxy so attending shall be entitled to exercise such powers in respect of the same portion of the shares as he is of the proxies representing such shares. 

Section 9. Voting; Elections; Inspectors. Unless otherwise required by law or provided in the Certificate of Incorporation,
each stockholder shall have one vote for each share of stock entitled to vote which is registered in his name on the record date for the meeting. Shares registered in the name of another corporation, domestic or foreign, may be voted by such
officer, agent or proxy as the bylaw (or comparable instrument) of such corporation may prescribe, or in the absence of such provision, as the board of directors (or comparable body) of such corporation may determine. Shares registered in the name
of a deceased person may be voted by his executor or administrator, either in person or by proxy. 
 All voting, except as required by the
Certificate of Incorporation or where otherwise required by law, may be by a voice vote; provided, however, that upon demand therefor by stockholders holding a majority of the issued and outstanding stock present in person or by proxy at any meeting
a stock vote shall be taken. Every stock vote shall be taken by written ballots, each of which shall state the name of the stockholder or proxy voting and such other information as may be required under the procedure established for the meeting.
Except as otherwise provided in the Certificate of Incorporation, all elections of directors shall be by ballot. 
 At any meeting at which
a vote is taken by ballots, the chairman of the meeting may appoint one or more inspectors, each of whom shall subscribe an oath or affirmation to execute faithfully the duties of inspector at such meeting with strict impartiality and according to
the best of his ability. Such inspector shall receive the ballots, count the votes and make and sign a certificate of the result thereof. The chairman of the meeting may appoint any person to serve as inspector, except no candidate for the office of
director shall be appointed as an inspector. 

  
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 Unless otherwise provided in the Certificate of Incorporation, cumulative voting for the election
of directors shall be prohibited. 
 Section 10. Conduct of Meetings. The meetings of the stockholders shall be presided over
by the Chairman of the Board (if any), or if he is not present, by the President, or if neither the Chairman of the Board (if any) nor the President is present, by a chairman elected at the meeting. The Secretary of the Corporation, if present,
shall act as secretary of such meetings, or if he is not present, an Assistant Secretary shall so act; if neither the Secretary nor an Assistant Secretary is present, then a secretary shall be appointed by the chairman of the meeting. The chairman
of any meeting of stockholders shall determine the order of business and the procedure at the meeting, including such regulation of the manner of voting and the conduct of discussion as seem to him in order. Unless the chairman of the meeting of
stockholders shall otherwise determine, the order of business shall be as follows: 
  

	 	(a)	Calling of meeting to order. 

  

	 	(b)	Election of a chairman and the appointment of a secretary, if necessary. 

  

	 	(c)	Presentation of proof of the due calling of the meeting. 

  

	 	(d)	Presentation and examination of proxies and determination of a quorum. 

  

	 	(e)	Reading and settlement of the minutes of the previous meeting. 

  

	 	(f)	Reports of officers and committees. 

  

	 	(g)	The election of directors if an annual meeting, or a meeting called for that purpose. 

  

	 	(h)	Unfinished business. 

  

	 	(i)	New business. 

  

	 	(j)	Adjournment. 

 Section 11. Treasury Stock. The Corporation shall not vote,
directly or indirectly, shares of its own stock owned by it and such shares shall not be counted for quorum purposes. 
 Section 12.
Action Without Meeting. Unless otherwise provided in the Certificate of Incorporation, any action permitted or required by law, the Certificate of Incorporation or these bylaws to be taken at a meeting of stockholders, may be taken without a
meeting, without prior notice and without a vote, if a consent in writing or by electronic transmission setting forth the action so taken, shall be signed by the holders of outstanding stock having not less than the minimum number of votes that
would be necessary to authorize or take such action at a meeting àt which all shares entitled to vote thereon were present and voted. Prompt notice of the taking of the corporate action without a meeting by less than a unanimous written
consent shall be given by the Secretary to those stockholders who have not consented in writing. 

  
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 Article III 

Board of Directors 

Section 1. Power; Number; Term of Office. The business and affairs of the Corporation shall be managed by or under the
direction of the Board of Directors, and subject to the restrictions imposed by law or the Certificate of Incorporation, they may exercise all the powers of the Corporation. 

The number of directors which shall constitute the whole Board of Directors, shall be determined from time to time by resolution of the Board
of Directors (provided that no decrease in the number of directors which would have the effect of shortening the term of an incumbent director may be made by the Board of Directors). Notwithstanding the above, for so long as there are any shares of
Series B Preferred Stock, Series C Preferred Stock or Series D Preferred Stock outstanding, there shall at all times be one seat on the Board of Directors available for the “Preferred Director” as that term is defined in the certificates
of designation creating the Series B Preferred Stock, Series C Preferred Stock or Series D Preferred Stock. Each director shall hold office for the term for which he is elected, and until his successor shall have been elected and qualified or until
his earlier death, resignation or removal. 
 Unless otherwise provided in the Certificate of Incorporation, directors need not be
stockholders or residents of the State of Delaware. 
 Section 2. Quorum. Unless otherwise provided in the Certificate of
Incorporation or these bylaws, a majority of the total number of directors shall constitute a quorum for the transaction of business at a meeting of the Board of Directors and the vote of a majority of the directors present at a meeting at which a
quorum is present shall be the act of the Board of Directors. 
 Section 3. Place of Meetings; Order of Business. The
directors may hold their meetings and may have an office and keep the books of the Corporation, except as otherwise provided by law, in such place or places, within or without the State of Delaware, as the Board of Directors may from time to time
determine, by resolution. At all meetings of the Board of Directors business shall be transacted in such order as shall from time to time be determined by the Chairman of the Board (if any), or in his absence by the President, or by resolution of
the Board of Directors. 
 Section 4. Regular Meetings. Regular meetings of the Board of Directors shall be held at such
times and places as shall be designated from time to time by resolution of the Board of Directors upon notice to the directors. 

Section 5. Special Meetings. Special meetings of the Board of Directors may be called by the Chairman of the Board (if
any), the President or, on the written request of any two directors or the “Preferred Director” (as such term is defined in the certificates of 

  
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designation creating the Series B Preferred Stock, the Series C Preferred Stock or the Series D Preferred Stock), by the Secretary, in each case after delivery of personal, written or electronic
notice to each director at least one business day prior to such special meeting. Such notice, or any waiver thereof pursuant to Article VIII, Section 3 hereof, must state the purpose or purposes of such meeting, except as may otherwise be
required by law or provided for in the Certificate of Incorporation or these bylaws. 
 Section 6. Removal. Any director
or the entire Board of Directors may be removed, with or without cause, by the holders of a majority of the shares then entitled to vote at an election of directors, unless the Certificate of Incorporation otherwise provides. 

Section 7. Vacancies; Increases in the Number of Directors. Unless otherwise provided in the Certificate of Incorporation,
newly created directorships resulting from any increase in the authorized number of directors and any other vacancy on the Board of Directors may be filled by a majority of the directors then in office, although less than a quorum, or a sole
remaining director; and any director so chosen shall hold office until the next annual election and until his successor shall be duly elected and shall qualify, unless sooner displaced. 

If the directors of the Corporation are divided into classes, any directors elected to fill vacancies or newly created directorships shall
hold office until the next election of the class for which such directors shall have been chosen, and until their successors shall be duly elected and shall qualify. 

Section 8. Compensation. Unless otherwise restricted by the Certificate of Incorporation, the Board of Directors shall have
the authority to fix the compensation of directors. 
 Section 9. Action Without a Meeting; Telephone Conference Meeting.
Unless otherwise restricted by the Certificate of Incorporation, any action required or permitted to be taken at any meeting of the Board of Directors, or any committee designated by the Board of Directors, may be taken without a meeting if all
members of the Board of Directors or committee, as the case may be, consent thereto in writing, and the writing or writings are filed with the minutes of proceedings of the Board of Directors or committee. Such consent shall have the same force and
effect as a unanimous vote at a meeting, and may be stated as such in any document or instrument filed with the Secretary of State of Delaware. 

Unless otherwise restricted by the Certificate of Incorporation, subject to the requirement for notice of meetings, members of the Board of
Directors, or members of. any committee designated by the Board of Directors, may participate in a meeting of such Board of Directors or committee, as the case may be, by means of a conference telephone or similar communications equipment (and the
Corporation shall make such means available) by means of which all persons participating in the meeting can hear each other, and participation in such a meeting shall constitute presence in person at such meeting, except where a person participates
in the meeting for the express purpose of objecting to the transaction of any business on the ground that the meeting is not lawfully called or convened. 

  
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 Article IV 

Committees 

Section 1. Designation; Powers. The Board of Directors may, by resolution passed by a majority of the whole board,
designate one or more committees, including, if they shall so determine, an executive committee, each such committee to consist of one or more of the directors of the Corporation. Any such designated committee shall have and may exercise such of the
powers and authority of the Board of Directors in the management of the business and affairs of the Corporation as may be provided in such resolution, except that no such committee shall have the power or authority of the Board of Directors in
reference to any matter prohibited by the Delaware General Corporation Law. Any such designated committee may authorize the seal of the Corporation to be affixed to all papers which may require it. In addition to the above such committee or
committees shall have such other powers and limitations of authority as may be determined from time to time by resolution adopted by the Board of Directors. 

Section 2. Procedure; Meetings; Quorum. Any committee designated pursuant to Section 1 of this Article IV shall choose its
own chairman, shall keep regular minutes of its proceedings and report the same to the Board of Directors when requested, shall fix its own rules or procedures, and shall meet at such times and at such place or places as may be provided by such
rules, or by resolution of such committee or resolution of the Board of Directors. At every meeting of any such committee, the presence of a majority of all the members thereof shall constitute a quorum and the affirmative vote of a majority of the
members present shall be necessary for the adoption by it of any resolution. 
 Section 3. Substitution of Members. The
Board of Directors may designate one or more directors as alternate members of any committee, who may replace any absent or disqualified member at any meeting of such committee. In the absence or disqualification of a member of a committee, the
member or members present at any meeting and not disqualified from voting, whether or not constituting a quorum, may unanimously appoint another member of the Board of Directors to act at the meeting in the place of the absent or disqualified
member. 
 Article V 

Officers 

Section 1. Number, Titles and Term of Office. The officers of the Corporation shall consist of a President, one or more
Vice Presidents (any one or more of whom may be designated Executive Vice President or Senior Vice President), a Treasurer, a Secretary and, if the Board of Directors so elects, a Chairman of the Board and such other officers as the Board of
Directors may from time to time elect or appoint. Each officer shall hold office until his successor shall be duly elected and shall qualify or until his death or until he shall resign or shall have been removed in the manner hereinafter

  
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provided. Any number of offices may be held by the same person, unless the Certificate of Incorporation provides otherwise. Except for the Chairman of the Board, if any, no officer need be a
director. 
 Section 2. Salaries. The salaries or other compensation of the officers and agents of the Corporation shall
be fixed from time to time by the Board of Directors. 
 Section 3. Removal. Any officer or agent elected or appointed by
the Board of Directors may be removed, either with or without cause, by the vote of a majority of the whole Board of Directors at a special meeting called for the purpose, or at any regular meeting of the Board of Directors, provided the notice for
such meeting shall specify that the matter of any such proposed removal will be considered at the meeting but such removal shall be without prejudice to the contract rights, if any, of the person so removed. Election or appointment of an officer or
agent shall not of itself create contract rights. 
 Section 4. Vacancies. Any vacancy occurring in any office of the
Corporation may be filled by the Board of Directors. 
 Section 5. Powers and Duties of the Chairman of the Board. The
Chairman of the Board (if such office is created by the Board) shall have all powers and shall perform all duties incident to the office of Chairman of the Board. The Chairman shall preside at all meetings of the Board of Directors or of the
stockholders of the Corporation. In the Chairman’s absence, such duties shall be attended to by the President. The Chairman shall formulate and submit to the Board of Directors or the executive committee (if any) matters of general policy of
the Corporation and shall have such other powers and perform such other duties as usually appertain to the office or as may be prescribed by the Board of Directors or the executive committee. The Chairman of the Board may hold such other offices as
the Board of Directors may determine. 
 Section 7. Powers and Duties of the President. The President shall be the chief
executive officer and the chief operating officer of the Corporation and, subject to the control of the Board of Directors, shall in general manage, supervise and control the properties, business and day-to-day affairs of the Corporation with all
such powers as may be reasonably incident to such responsibilities. In the absence of the Chairman of the Board, the President shall preside at all meetings of the stockholders and (should he be a director) of the Board of Directors. He may also
preside at any such meeting attended by the Chairman of the Board if he is so designated by the Chairman. He shall have the power to appoint and remove subordinate officers, agents and employees, except those elected or appointed by the Board of
Directors. Unless the Board of Directors otherwise determines, the President shall have the authority to agree upon and execute all leases, contracts, evidences of indebtedness, and other obligations in the name of the Corporation. The President
shall keep the Board of Directors, and the executive committee (if any) fully informed and shall consult them concerning the business of the Corporation. He shall vote, or give a proxy to any other officer of the Corporation to vote all shares of
stock of any other corporation standing in the name of the Corporation and shall exercise any and all rights and powers which this Corporation may possess by 

  
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reason of its ownership of securities in such other corporation; provided that the Board of Directors may from time to time, by resolution, confer like powers upon any other person or persons. In
general the President shall have all powers and shall perform all other duties normally incident to the office of President and such other duties, and shall have such other powers, as may be prescribed by these by-laws, the Board of Directors, or
the executive committee (if any) from time to time. 
 Section 8. Vice Presidents. In the absence of the President, or in the
event of his inability or refusal to act, a Vice President designated by the Board of Directors shall perform the duties of the President, and when so acting shall have all the powers of and be subject to all the restrictions upon the President. In
the absence of a designation by the Board of Directors of a Vice President to perform the duties of the President, or in the event of his absence or inability or refusal to act, the Vice President who is present and who is senior in terms of time as
a Vice President of the Corporation shall so act. The Vice Presidents shall perform such other duties and have such other powers as the Board of Directors may from time to time prescribe. 

Section 9. Treasurer. The Treasurer shall have responsibility for the custody and control of all the funds and securities of the
Corporation, and he shall have such other powers and duties as designated in these bylaws and as from time to time may be assigned to him by the Board of Directors. He shall perform all acts incident to the position of Treasurer, subject to the
control of the chief executive officer and the Board of Directors; and he shall, if required by the Board of Directors, give such bond for the faithful discharge of his duties in such form as the Board of Directors may require. 

Section 10. Assistant Treasurers. Each Assistant Treasurer, if any, shall have the usual powers and duties pertaining to his
office, together with such other powers and duties as designated in these bylaws and as from time to time may be assigned to him by the chief executive officer or the Board of Directors. The Assistant Treasurers shall exercise the powers of the
Treasurer during that officer’s absence or inability or refusal to act. 
 Section 11. Secretary. The Secretary shall
keep the minutes of all meetings of the Board of Directors, committees of directors and the stockholders, in books provided for that purpose; he shall attend to the giving and serving of all notices; he may in the name of the Corporation affix the
seal of the Corporation to all contracts of the Corporation and attest the affixation of the seal of the Corporation thereto; he may sign with the other appointed officers all certificates for shares of capital stock of the Corporation; he shall
have charge of the certificate books, transfer books and stock ledgers, and such other books and papers as the Board of Directors may direct, all of which shall at all reasonable times be open to inspection of any director upon application at the
office of the Corporation during business hours; he shall have such other powers and duties as designated in these bylaws and as from time to time may be assigned to him by the Board of Directors; and he shall in general perform all acts incident to
the office of Secretary, subject to the control of the chief executive officer and the Board of Directors. 

  
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 Section 12. Assistant Secretaries. Each Assistant Secretary, if any, shall have the
usual powers and duties pertaining to his office, together with such other powers and duties as designated in these bylaws and as from time to time may be assigned to him by the chief executive officer or the Board of Directors. The Assistant
Secretaries shall exercise the powers of the Secretary during that officer’s absence or inability or refusal to act. 
 Section
13. Action with Respect to Securities of Other Corporations. Unless otherwise directed by the Board of Directors, the chief executive officer shall have power to vote and otherwise act on behalf of the Corporation, in person or by proxy,
at any meeting of security holders of or with respect to any action of security holders of any other corporation in which this Corporation may hold securities and otherwise to exercise any and all rights and powers which this Corporation may possess
by reason of its ownership of securities in such other corporation. 
 Article VI 

Indemnification of Directors, 

Officers, Employees and Agents 

Section 1. Right to Indemnification. Each person who was or is made a party or is threatened to be made a party to or is
involved in any threatened, pending or completed action, suit or proceeding, whether civil, criminal, administrative or investigative (hereinafter a “proceeding”), by reason of the fact that he or she or a person of whom he or she is the
legal representative, is or was or has agreed to become a director or officer of the Corporation or is or was serving or has agreed to serve at the request of the Corporation as a director, officer, employee or agent of another corporation or of a
partnership, joint venture, trust or other enterprise, including service with respect to employee benefit plans, whether the basis of such proceeding is alleged action in an official capacity as a director or officer or in any other capacity while
serving or having agreed to serve as a director or officer, shall be indemnified and held harmless by the Corporation to the fullest extent authorized by the Delaware General Corporation Law, as the same exists or may hereafter be amended, (but, in
the case of any such amendment, only to the extent that such amendment permits the Corporation to provide broader indemnification rights than said law permitted the Corporation to provide prior to such amendment) against all expense, liability and
loss (including without limitation, attorneys’ fees, judgments, fines, ERISA excise taxes or penalties and amounts paid or to be paid in settlement) reasonably incurred or suffered by such person in connection therewith and such indemnification
shall continue as to a person who has ceased to serve in the capacity which initially entitled such person to indemnity hereunder and shall inure to the benefit of his or her heirs, executors and administrators; provided, however, that the
Corporation shall indemnify any such person seeking indemnification in connection with a proceeding (or part thereof) initiated by such person only if such proceeding (or part thereof) was authorized by the board of directors of the Corporation. The
right to indemnification conferred in this Article VI shall be a contract right and shall include the right to be paid by the Corporation the expenses incurred in defending any such proceeding in advance of its final disposition; provided, however,
that, if the Delaware 

  
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General Corporation Law requires, the payment of such expenses incurred by a current, former or proposed director or officer in his or her capacity as a director or officer or proposed director
or officer (and not in any other capacity in which service was or is or has been agreed to be rendered by such person while a director or officer, including, without limitation, service to an employee benefit plan) in advance of the final
disposition of a proceeding, shall be made only upon delivery to the Corporation of an undertaking, by or on behalf of such indemnified person, to repay all amounts so advanced if it shall ultimately be determined that such indemnified person is not
entitled to be indemnified under this Section 1. 
 Section 2. Indemnification of Employees and Agents. The Corporation
may, by action of its Board of Directors, provide indemnification to employees and agents of the Corporation, individually or as a group, with the same scope and effect as the indemnification of directors and officers provided for in this Article
VI. 
 Section 3. Right of Claimant to Bring Suit. If a written claim received by the Corporation from or on behalf of an
indemnified party under this Article VI is not paid in full by the Corporation within ninety days after such receipt, the claimant may at any time thereafter bring suit against the Corporation to recover the unpaid amount of the claim and, if
successful in whole or in part, the claimant shall be entitled to be paid also the expense of prosecuting such claim. It shall be a defense to any such action (other than an action brought to enforce a claim for expenses incurred in defending any
proceeding in advance of its final disposition where the required undertaking, if any is required, has been tendered to the Corporation) that the claimant has not met the standards of conduct which make it permissible under the Delaware General
Corporation Law for the Corporation to indemnify the claimant for the amount claimed, but the burden of proving such defense shall be on the Corporation. Neither the failure of the Corporation (including its Board of Directors, independent legal
counsel, or its stockholders) to have made a determination prior to the commencement of such action that indemnification of the claimant is proper in the circumstances because he or she has met the applicable standard of conduct set forth in the
Delaware General Corporation Law, nor an actual determination by the Corporation (including its Board of Directors, independent legal counsel, or its stockholders) that the claimant has not met such applicable standard of conduct, shall be a defense
to the action or create a presumption that the claimant has not met the applicable standard of conduct. 
 Section 4.
Nonexclusivity of Rights. The right to indemnification and the advancement and payment of expenses conferred in this Article VI shall not be exclusive of any other right which any person may have or hereafter acquire under any law (common or
statutory), provision of the Certificate of Incorporation of the Corporation, bylaw, agreement, vote of stockholders or disinterested directors or otherwise. 

Section 5. Insurance. The Corporation may maintain insurance, at its expense, to protect itself and any person who is or was
serving as a director, officer, employee or agent of the Corporation or is or was serving at the request of the Corporation as a director, officer, employee or agent of another corporation, partnership, joint venture, trust or other enterprise
against any expense, liability or loss asserted against such person 

  
 -13- 

 
and incurred by any such person in any such capacity, or arising out of such person’s status as such, whether or not the Corporation would have the power to indemnify such person against
such expense, liability or loss under the Delaware General Corporation Law. 
 Section 6. Savings Clause. If this Article VI
or any portion hereof shall be invalidated on any ground by any court of competent jurisdiction, then the Corporation shall nevertheless indemnify and hold harmless each director and officer of the Corporation, as to costs, charges and expenses
(including attorneys’ fees), judgments, fines, and amounts paid in settlement with respect to any action, suit or proceeding, whether civil, criminal, administrative or investigative to the full extent permitted by any applicable portion of
this Article VI that shall not have been invalidated and to the fullest extent permitted by applicable law. 
 Section 7.
Amendment, Modification or Repeal. Any amendment, modification or repeal of this Article VI by the Board of Directors or the stockholders of the Corporation shall not adversely affect any right of or protection afforded to a director,
officer, employee or agent of the Corporation existing at the time of such amendment, modification or repeal. 
 Article VII 

Capital Stock 
 Section
1. Certificates of Stock. The certificates for shares of the capital stock of the Corporation shall be in such form, not inconsistent with that required by law and the Certificate of Incorporation, as shall be approved by the Board of
Directors. The Chairman of the Board (if any), President or a Vice President shall cause to be issued to each stockholder one or more certificates, under the seal of the Corporation or a facsimile thereof if the Board of Directors shall have
provided for such seal, and signed by the Chairman of the Board (if any), President or a Vice President and the Secretary or an Assistant Secretary or the Treasurer or an Assistant Treasurer certifying the number of shares (and, if the stock of the
Corporation shall be divided into classes or series, the class and series of such shares) owned by such stockholder in the Corporation; provided, however, that any of or all the signatures on the certificate may be facsimile. The stock record books
and the blank stock certificate books shall be kept by the Secretary, or at the office of such transfer agent or transfer agents as the Board of Directors may from time to time by resolution determine. In case any officer, transfer agent or
registrar who shall have signed or whose facsimile signature or signatures shall have been placed upon any such certificate or certificates shall have ceased to be such officer, transfer agent or registrar before such certificate is issued by the
Corporation, such certificate may nevertheless be issued by the Corporation with the same effect as if such person were such officer, transfer agent or registrar at the date of issue. The stock certificates shall be consecutively numbered and shall
be entered in the books of the Corporation as they are issued and shall exhibit the holder’s name and number of shares. 

  
 -14- 

 Section 2. Transfer of Shares. The shares of stock of the Corporation shall be
transferable only on the books of the Corporation by the holders thereof in person or by their duly authorized attorneys or legal representatives upon surrender and cancellation of certificates for a like number of shares. Upon surrender to the
Corporation or a transfer agent of the Corporation of a certificate for shares duly endorsed or accompanied by proper evidence of succession, assignment or authority to transfer, it shall be the duty of the Corporation to issue a new certificate to
the person entitled thereto, cancel the old certificate and record the transaction upon its books. 
 Section 3. Ownership of
Shares. The Corporation shall be entitled to treat the holder of record of any share or shares of capital stock of the Corporation as the holder in fact thereof and, accordingly, shall not be bound to recognize any equitable or other claim to or
interest in such share or shares on the part of any other person, whether or not it shall have express or other notice thereof, except as otherwise provided by the laws of the State of Delaware. 

Section 4. Regulations Regarding Certificates. The Board of Directors shall have the power and authority to make all such rules
and regulations as they may deem expedient concerning the issue, transfer and registration or the replacement of certificates for shares of capital stock of the Corporation. 

Section 5. Lost or Destroyed Certificates. The Board of Directors may determine the conditions upon which a new certificate of
stock may be issued in place of a certificate which is alleged to have been lost, stolen or destroyed; and may, in their discretion, require the owner of such certificate or his legal representative to give bond, with sufficient surety, to indemnify
the Corporation and each transfer agent and registrar against any and all losses or claims which may arise by reason of the issue of a new certificate in the place of the one so lost, stolen or destroyed. 

Article VIII 

Miscellaneous Provisions 

Section 1. Fiscal Year. The fiscal year of the Corporation shall be such as established from time to time by the Board of
Directors. 
 Section 2. Corporate Seal. The Board of Directors may provide a suitable seal, containing the name of the
Corporation. The Secretary shall have charge of the seal (if any). If and when so directed by the Board of Directors or a committee thereof, duplicates of the seal may be kept and used by the Treasurer or by the Assistant Secretary or Assistant
Treasurer. 
 Section 3. Notice and Waiver of Notice. Except as otherwise provided in these bylaws, whenever any notice is
required to be given by law, the Certificate of Incorporation or under the provisions of these bylaws, said notice shall be deemed to be given (i) when received if delivered personally or by courier, (ii) on the date receipt is
acknowledged if delivered by certified mail, postage prepaid, return receipt requested, (iii) one business day after transmission if sent by facsimile transmission or electronic 

  
 -15- 

 
transmission with confirmation of transmission, or (iv) five business days following deposit of the same in a post office box postage prepaid in a sealed prepaid wrapper addressed to the
person entitled thereto at his post office address, as it appears on the records of the Corporation, and such notice shall be deemed to have been given on the day of such transmission or mailing, as the case may be. Without limiting the manner by
which notice otherwise may be given effectively to stockholders, any notice to stockholders may be given by electronic transmission in the manner provided in Section 232 of the Delaware General Corporation Law. 

Whenever notice is required to be given by law, the Certificate of Incorporation or under any of the provisions of these bylaws, a written
waiver thereof, signed by the person entitled to notice, whether before or after the time stated therein, shall be deemed equivalent to notice. Attendance of a person at a meeting shall constitute a waiver of notice of such meeting, except when the
person attends a meeting for the express purpose of objecting, at the beginning of the meeting, to the transaction of any business because the meeting is not lawfully called or convened. Neither the business to be transacted at, nor the purpose of,
any regular or special meeting of the stockholders, directors, or members of a committee of directors need be specified in any written waiver of notice unless so required by the Certificate of Incorporation or the bylaws. 

Section 4. Resignations. Any director, member of a committee or officer may resign at any time. Such resignation shall be
made in writing and shall take effect at the time specified therein, or if no time be specified, at the time of its receipt by the chief executive officer or Secretary. The acceptance of a resignation shall not be necessary to make it effective,
unless expressly so provided in the resignation. 
 Section 5. Facsimile Signatures. In addition to the provisions for
the use of facsimile signatures elsewhere specifically authorized in these bylaws, facsimile signatures of any officer or officers of the Corporation may be used whenever and as authorized by the Board of Directors. 

Section 6. Reliance upon Books, Reports and Records. Each director and each member of any committee designated by the Board
of Directors shall, in the performance of his duties, be fully protected in relying in good faith upon the books of account or reports made to the Corporation by any of its officers, or by an independent certified public accountant, or by an
appraiser selected with reasonable care by the Board of Directors or by any such committee, or in relying in good faith upon other records of the Corporation. 

Article IX 
 Amendments

 If, but only to the extent, provided in the Certificate of Incorporation of the Corporation, the Board of Directors shall have the
power to adopt, amend and repeal from time to time bylaws of the Corporation, subject to the right of the stockholders entitled to vote with respect thereto to amend or repeal such bylaws as adopted or amended by the Board of Directors. 

  
 -16-EX-4.19

 Exhibit 4.19 
  

			
		 	State of Delaware
		 	Secretary of State
		 	Division of Corporations
		 	Delivered 01:03 PM 01/12/2007
		 	FILED 01:03 PM 01/12/2007
		 	SRV 070040202 - 4264181 FILE

 CERTIFICATE OF INCORPORATION 

OF 
 PSSI HOLDINGS INC.

 FIRST: The name of the corporation is PSSI Holdings Inc. 

SECOND: The address of its registered office in the State of Delaware is 1209 Orange Street, in the City of Wilmington, County of New Castle.
The name of its registered agent at such address is The Corporation Trust Company. 
 THIRD: The nature of the business or purposes to be
conducted or promoted is to engage in any lawful act or activity for which corporations may be organized under the General Corporation Law of Delaware. 

FOURTH: The total number of shares of all classes of stock which the corporation shall have authority to issue is One Thousand (1,000) shares
of Common Stock of the par value of one cent ($0.01) per share. 
 FIFTH: The name of the incorporator is Adam D. Larson and his mailing
address is c/o Vinson & Elkins L.L.P., First City Tower, 1001 Fannin Street, Suite 2500, Houston, Texas 77002-6720. 
 SIXTH: The name
and mailing address of the directors who shall serve until the first annual meeting of stockholders or until their successors are elected and qualified, are as follows: 
  

			
	 Name
	  	 Address

		
	Martin Anderson	  	“Sambaiba”
		  	Kinstair Farm, Alford
		  	Aberdeenshire, Scotland
		  	AB33 8HL
		
	Fred Bruce Lokay	  	12 Bamboo Lane
		  	Jupiter, Florida 33458

 The number of directors of the corporation shall be as specified in, or determined in the manner provided in, the bylaws.
Election of directors need not be by written ballot. 
 SEVENTH: In furtherance of, and not in limitation of, the powers conferred by
statute, the Board of Directors is expressly authorized to adopt, amend or repeal the bylaws of the corporation. 
 EIGHTH: Whenever a
compromise or arrangement is proposed between the corporation and its creditors or any class of them and/or between the corporation and its stockholders or any class of them, any court of equitable jurisdiction within the State of Delaware may, on
the application in a summary way of the corporation or of any creditor or stockholder thereof or on the application of any receiver or receivers appointed for the corporation under the provisions of Section 291 of Title 8 of the Delaware Code or on
the application of trustees in dissolution or of 

 
any receiver or receivers appointed for the corporation under the provisions of Section 279 of Title 8 of the Delaware Code order a meeting of the creditors or class of creditors, and/or of the
stockholders or class of stockholders of the corporation, as the case may be, to be summoned in such manner as the said court directs. If a majority in number representing three-fourths in value of the creditors or class of creditors, and/or of the
stockholders or class of stockholders of the corporation, as the case may be, agree to any compromise or arrangement and to any reorganization of the corporation as a consequence of such compromise or arrangement, the said compromise or arrangement
and the said reorganization shall, if sanctioned by the court to which the said application has been made, be binding on all the creditors or class of creditors, and/or on all the stockholders or class of stockholders, of the corporation, as the
case may be, and also on the corporation. 
 NINTH: (a) No director of the corporation shall be liable to the corporation or its
stockholders for monetary damages for breach of fiduciary duty as a director, except for liability (i) for any breach of the director’s duty of loyalty to the corporation or its stockholders, (ii) for acts or omissions not in good faith or
which involve intentional misconduct or a knowing violation of law, (iii) under Section 174 of the Delaware General Corporation Law, or (iv) for any transaction from which the director derived an improper personal benefit. 

(b) Indemnification and Insurance. 

(i) Right to Indemnification. (A) Each person who was or is made a party or is threatened to be made a party to or is involved in any action,
suit or proceeding, whether civil, criminal, administrative or investigative (hereinafter a “proceeding”), by reason of the fact that he or she, is or was a director or officer of the corporation, or serves at the request of the
corporation, in any capacity, any corporation, partnership or other entity in which the corporation has a partnership or other interest, including service with respect to employee benefit plans, whether the basis of such proceeding is alleged action
in an official capacity as a director, officer, employee or agent or in any other capacity while serving as a director, officer, employee or agent, shall be indemnified and held harmless by the corporation to the fullest extent authorized by the
Delaware General Corporation Law, as the same exists or may hereafter be amended (but, in case of any such amendment, only to the extent that such amendment permits the corporation to provide broader indemnification rights than said law permitted
the corporation to provide prior to such amendment), against all expense, liability and loss (including attorneys’ fees, judgments, fines, ERISA excise taxes or penalties and amounts paid or to be paid in settlement) reasonably incurred or
suffered by such person in connection therewith and such indemnification shall continue as to a person who has ceased to be a director, officer, employee or agent and shall inure to the benefit of his or her heirs, executors and administrators, and
(B) the corporation shall indemnify and hold harmless in such manner any person designated by the Board of Directors, or any committee thereof, as a person subject to this indemnification provision, and who was or is made a party or is threatened to
be made a party to a proceeding by reason of the fact that he, she or a person of whom he or she is the legal representative, is or was serving at the request of the Board of Directors of the corporation as a director, officer,

  
 2 

 
employee or agent of another corporation or a partnership, joint venture, trust or other enterprise whether such request is made before or after the acts taken or allegedly taken or events
occurring or allegedly occurring which give rise to such proceeding; provided, however, that except as provided in subsection (b)(ii) of this Section, the corporation shall indemnify any such person seeking indemnification pursuant to this
subsection in connection with a proceeding (or part thereof) initiated by such person only if such proceeding (or part thereof) was authorized by the Board of Directors of the corporation. The right to indemnification conferred herein shall be a
contract right based upon an offer from the corporation which shall be deemed to have been made to a person subject to subsection (b)(i)(A) on the date hereof and to a person subject to subsection (b)(i)(B) on the date designated by the Board of
Directors, shall be deemed to be accepted by such person’s service or continued service as a director or officer of the corporation for any period after the offer is made and shall include the right to be paid by the corporation the expenses
incurred in defending any such proceeding in advance of its final disposition; provided, however, that if the Delaware General Corporation Law requires, the payment of such expenses incurred by a director or officer in his or her capacity as the
director or officer (and not in any other capacity in which service was or is rendered by such person while a director or officer, including, without limitation, service to an employee benefit plan) in advance of the final disposition of a
proceeding, shall be made only upon delivery to the corporation of an undertaking, by or on behalf of such director or officer, to repay all amounts so advanced if it shall ultimately be determined that such director or officer is not entitled to be
indemnified under this Section or otherwise. The corporation may, by action of its Board of Directors, provide indemnification to employees or agents of the corporation with the same scope and effect as the foregoing indemnification of directors and
officers. 
 (ii) Right of Claimant to Bring Suit. If a claim under Section (b)(i) of this Article is not paid in full by the corporation
within thirty days after a written claim has been received by the corporation, the claimant may at any time thereafter bring suit against the corporation to recover the unpaid amount of the claim and, if successful in whole or in part, the claimant
shall be entitled to be paid also the expense of prosecuting such claim. It shall be a defense to any such action (other than an action brought to enforce a claim for expenses incurred in defending any proceeding in advance of its final disposition
where the required undertaking, if any is required, has been tendered to the corporation) that the claimant has not met the standards of conduct which make it permissible under the Delaware General Corporation Law for the corporation to indemnify
the claimant for the amount claimed. Neither the failure of the corporation (including its Board of Directors, independent legal counsel, or its stockholders) to have made a determination prior to the commencement of such action that indemnification
of the claimant is proper in the circumstances because he or she has met the applicable standard of conduct set forth in the Delaware General Corporation Law, nor an actual determination by the corporation (including its Board of Directors,
independent legal counsel, or its stockholders) that the claimant has not met such applicable standard of conduct, shall be a defense to the action or create a presumption that the claimant has not met the applicable standard of conduct. 

  
 3 

 (iii) Nonexclusivity of Rights. The right to indemnification and the payment of expenses incurred
in defending a proceeding in advance of its final disposition conferred in this Section shall not be exclusive of any right which any person may have or hereafter acquire under any statute, provision of the Certificate of Incorporation, bylaw,
agreement, vote of stockholders or disinterested directors or otherwise. 
 (iv) Insurance. The corporation may maintain insurance, at its
expense, to protect itself and any director officer, employee or agent of the corporation or another corporation, partnership, joint venture, trust or other enterprise against any such expense, liability or loss, whether or not the corporation would
have the power to indemnify such person against such expense, liability or loss under the Delaware General Corporation Law. 
 (v)
Severability. If any subsection of this Section (b) shall be deemed to be invalid or ineffective in any proceedings, the remaining subsections hereof shall not be affected and shall remain in full force and effect. 

TENTH: The corporation shall have the right, subject to any express provisions or restrictions contained in the certificate of incorporation
or bylaws of the corporation, from time to time, to amend the certificate of incorporation or any provision thereof in any manner now or hereafter provided by law, and all rights and powers of any kind conferred upon a director or stockholder of the
corporation by the certificate of incorporation or any amendment thereof are subject to such right of the corporation. 

[Signature Page Follows] 

  
 4 

 I, the undersigned, being the incorporator hereinbefore named, for the purpose of forming a
corporation pursuant to the General Corporation Law of the State of Delaware, do make this certificate, hereby declaring that this is my act and deed and that the facts herein stated are true, and accordingly have hereunto set my hand this 12th day of January, 2007. 
  

	
	 /s/ Adam D. Larson

	Adam D. Larson, Incorporator

 [Signature Page to Certificate of Incorporation of PSSI Holdings Inc.] 

			
		 	State of Delaware
		 	Secretary of State
		 	Division of Corporations
		 	Delivered 03:43 PM 04/16/2007
		 	FILED 03:38 PM 04/16/2007
		 	SRV 070438632 - 4264181 FILE

 CERTIFICATE OF AMENDMENT 

OF THE 
 CERTIFICATE OF
INCORPORATION 
 OF 

PSSI HOLDINGS INC. 

April 16, 2007 
 PSSI
Holdings Inc., a corporation organized and existing under and by virtue of the General Corporation Law of Delaware (the “Company”), hereby certifies the following: 

FIRST: That the board of directors of the Company duly adopted a resolution proposing and declaring advisable the following amendment to the
Certificate of Incorporation of the Company in accordance with the provisions of Section 242 of the General Corporation Law of the State of Delaware: 

1. Article FIRST of the Certificate of Incorporation is hereby amended and restated in its entirety to read as follows: 

“FIRST: The name of the corporation is TGH (US) Inc.” 

SECOND: That the foregoing amendment to the Certificate of Incorporation was duly adopted by the board of directors of the Company by
unanimous written consent in accordance with the provisions of Section 141(f) and Section 242 of the General Corporation Law of the State of Delaware. 

THIRD: That the foregoing amendment to the Certificate of Incorporation was duly adopted and approved by written consent by the stockholders
of all shares of capital stock of the Company entitled to vote thereon in accordance with Section 228 and Section 242 of the General Corporation Law of the State of Delaware. 

[Signature Page Follows] 

 IN WITNESS WHEREOF, the undersigned officer has duly executed this Certificate of Amendment on
behalf of the Company as of the date first written above. 
  

			
	PSSI HOLDINGS INC.
		
	By:	 	 /s/ Martin Anderson

	Name:	 	Martin Anderson
	Title:	 	President

 [Signature Page to Amendment to Certificate of Formation of PSSI Holdings Inc. (Name
Change)] 

			
	State of Delaware	 	
	Secretary of State	 	
	Division of Corporations	 	
	Delivered 05:43 PM 10/24/2011	 	
	FILED 05:35 PM 10/24/2011	 	
	SRV 111130293 - 4264181 FILE	 	

 STATE OF DELAWARE 

CERTIFICATE OF CHANGE 
 OF
REGISTERED AGENT AND/OR 
 REGISTERED OFFICE 

The Board of Directors of TGH (US) Inc., a Delaware Corporation, on this 24th day of October, A.D. 2011, do hereby resolve and order that the location of the
Registered Office of this Corporation within this State be, and the same hereby is 160 Greentree Drive, Suite 101 Street, in the City of Dover, County of Kent Zip Code 19904. 

The name of the Registered Agent therein and in charge thereof upon whom process against this Corporation may be served, is National Registered Agents, Inc..

 The Corporation does hereby certify that the foregoing is a true copy of a resolution adopted by the Board of Directors at a meeting held as herein
stated. 
 IN WITNESS WHEREOF, said Corporation has caused this certificate to be signed by an authorized officer, the 24th day of October, A.D.,
2011. 
  

			
	By:	 	 /s/ Victor Alfano

		 	Authorized Officer
		
	Name:	 	 Victor Alfano

		 	Print or Type
		
	Title:	 	 Vice President

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