REGISTRATION RIGHTS AND LOCK-UP AGREEMENT

Exhibit 4.1

Execution Version

THIS REGISTRATION RIGHTS AND LOCK-UP AGREEMENT (this “Agreement”) is entered into as of December 21, 2017, by and among Estre Ambiental, Inc. (f/k/a Boulevard Acquisition Corp II Cayman Holding Company), a Cayman Islands exempted company limited by shares (the “Company”), and the undersigned parties listed as Investors on the signature page hereto (each, an “Investor” and collectively, the “Investors”).

WHEREAS, Estre USA Inc. (f/k/a Boulevard Acquisition Corp II), a Delaware corporation (“Boulevard”), and certain of the Investors are parties to that certain Registration Rights Agreement, dated September 21, 2015 (the “Prior Agreement”);

WHEREAS, the Company, Boulevard, Estre Ambiental S.A. and BII Merger Sub Corp. have entered into that certain Amended and Restated Business Combination Agreement, dated as of September 11, 2017 (as amended, the “Business Combination Agreement”);

WHEREAS, this Agreement is being entered into on the Closing Date (as defined below), and on the date hereof, immediately upon Closing (as defined in the Business Combination Agreement) the Investors hold the Ordinary Shares (as defined below) and the Sponsor Warrants (as defined below) set forth in the Schedule to this Agreement (other than with respect to the Ordinary Shares issuable in exchange for shares of Boulevard’s Class B common stock, par value $0.0001 per share (the “Boulevard Class B Shares”)); and

WHEREAS, the parties to the Prior Agreement desire to terminate the Prior Agreement to provide for the terms and conditions included herein.

NOW, THEREFORE, in consideration of the mutual covenants and agreements set forth herein, and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto agree as follows:

1. DEFINITIONS. THE FOLLOWING CAPITALIZED TERMS USED HEREIN HAVE THE FOLLOWING MEANINGS:

“Addendum Agreement” is defined in Section 7.2.

“Affiliate”, in respect of any person or entity, means (a) any direct and/or indirect shareholder, quotaholder, member, manager, partner or general partner of such person or entity or (b) any other person or entity that, directly or indirectly, is in control of or manages, is controlled or managed by, or is under common control or management with, such person or entity.

“Agreement” means this Agreement, as amended, restated, supplemented, or otherwise modified from time to time.

“Boulevard” is defined in the preamble to this Agreement.

“Boulevard Class B Shares” is defined in the preamble to this Agreement.

“Business Combination Agreement” is defined in the preamble to this Agreement.

“Business Day” means a day other than a Saturday, Sunday or other day on which commercial banks in New York, New York are authorized or required by law to close.

“Closing Date” has the meaning given to such term in the Business Combination Agreement.

“Commission” means the Securities and Exchange Commission, or any other Federal agency then administering the Securities Act or the Exchange Act.

“Company” is defined in the preamble to this Agreement.

“Demand Registration” is defined in Section 2.2.1.

“Demand Takedown” is defined in Section 2.1.5(a).

“Demanding Holder” is defined in Section 2.2.1.

“Effectiveness Period” is defined in Section 3.1.3.

“Exchange Act” means the Securities Exchange Act of 1934, as amended, and the rules and regulations of the Commission promulgated thereunder, all as the same shall be in effect at the time.

“Family Member” means spouse, lineal descendants, stepchildren, father, mother, brother or sister of a (i) Lock-Up Holder that is an individual or (ii) of such Lock-Up Holder’s spouse.

“Form F-1” is defined in Section 2.2.1.

“Form F-3” is defined in Section 2.1.1.

“Indemnified Party” is defined in Section 4.3.

“Indemnifying Party” is defined in Section 4.3.

“Initial Demanding Holder” is defined in Section 2.2.1.

“Investor” is defined in the preamble to this Agreement.

“Investor Indemnified Party” is defined in Section 4.1.

“Largest Holder” the Demanding Holder (or, in relation to Section 2.1, the Selling Holder) that holds the greatest number of Registrable Securities requested to be included in a Demand Registration (or, in relation to Section 2.1, a Demand Takedown).

“Lock-Up” means the restrictions set forth in Section 6.1.

“Lock-Up Holders” means each of the Investors other than (a) if and to the extent it becomes an Investor hereunder, AG Angra Infra-Estrutura Fundo de Investimento em Participações or any of its Affiliates that holds Registrable Securities and (b) Iron Fundo de Investimentos em Participações.

“Lock-Up Securities” is defined in Section 6.1.1.

“Maximum Number of Shares” is defined in Section 2.2.4.

“New Registration Statement” is defined in Section 2.1.4.

“Notices” is defined in Section 7.3.

“Ordinary Shares” means the ordinary shares, par value $0.0001 per share, of the Company.

“Piggy-Back Registration” is defined in Section 2.3.1.

“Prior Agreement” is defined in the preamble to this Agreement.

“Pro Rata” is defined in Section 2.2.4.

“Register,” “Registered” and “Registration” mean a registration effected by preparing and filing a registration statement or similar document in compliance with the requirements of the Securities Act, and the applicable rules and regulations promulgated thereunder, and such registration statement becoming effective.

“Registrable Securities” means (i) the number of Ordinary Shares (a) set forth on the Schedule to this Agreement (including Ordinary Shares issuable in exchange for Boulevard Class B Shares), and (b) issuable pursuant to the exercise of the Sponsor Warrants set forth on the Schedule to this Agreement, and (ii) the Sponsor Warrants set forth on the Schedule to this Agreement, and all Ordinary Shares issued to any holder with respect to such securities by way of any share split, share dividend or other distribution, recapitalization, share exchange, share reconstruction, amalgamation, contractual control arrangement or similar event. As to any particular Registrable Securities, such securities shall cease to be Registrable Securities when: (a) a Registration Statement with respect to the sale of such securities shall have become effective under the Securities Act and such securities shall have been sold, transferred, disposed of or exchanged in accordance with such Registration Statement; (b) such securities shall have been otherwise transferred, new certificates for them not bearing a legend restricting further transfer shall have been delivered by the Company and subsequent public distribution of them shall not require registration under the Securities Act; or (c) such securities shall have ceased to be outstanding.

“Registration Statement” means a registration statement filed by the Company with the Commission in compliance with the Securities Act and the rules and regulations promulgated thereunder for a public offering and sale of equity securities, or securities or other obligations

exercisable or exchangeable for, or convertible into, equity securities (other than a registration statement on Form F-4, Form S-4 or Form S-8, or their successors, or any registration statement covering only securities proposed to be issued in exchange for securities or assets of another entity).

“Resale Shelf Registration Statement” is defined in Section 2.1.1.

“Restricted Period” means the period commencing on the Closing Date and ending on the first anniversary of the Closing Date.

“Requesting Holder” is defined in Section 2.1.5(a).

“SEC Guidance” is defined in Section 2.1.4.

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations of the Commission promulgated thereunder, all as the same shall be in effect at the time.

“Selling Holders” is defined in Section 2.1.5(a)(ii).

“Sponsor Warrants” means the aggregate of 6,001,400 warrants issued by Boulevard at a price of $1.00 per warrant, in a private placement that occurred simultaneously with the completion of the initial public offering of Boulevard, as shall be converted to warrants exercisable for Ordinary Shares in connection with the consummation of the transactions contemplated by the Business Combination Agreement.

“Underwriter” means a securities dealer who purchases any Registrable Securities as principal in an underwritten offering and not as part of such dealer’s market-making activities.

“Underwritten Takedown” shall mean an underwritten public offering of Registrable Securities pursuant to the Resale Shelf Registration Statement, as amended or supplemented.

“Warrant Agreement” is defined in Section 2.4.

2. REGISTRATION RIGHTS.

2.1 Resale Shelf Registration Rights.

2.1.1 Registration Statement Covering Resale of Registrable Securities. The Company shall prepare and file or cause to be prepared and filed with the Commission, no later than 30 days following the date that the Company becomes eligible to use Form F-3 or its successor form (“Form F-3”), a Registration Statement for an offering to be made on a continuous basis pursuant to Rule 415 of the Securities Act registering the resale from time to time by Investors of all of the Registrable Securities held by or then issuable to Investors (the “Resale Shelf Registration Statement”). The Resale Shelf Registration Statement shall be on Form F-3 or another appropriate form permitting Registration of such Registrable Securities for resale by such Investors. The Company shall use reasonable best efforts to cause the Resale Shelf Registration Statement to be declared effective as soon as possible after filing, and once effective,

to keep the Resale Shelf Registration Statement continuously effective under the Securities Act at all times until the expiration of the Effectiveness Period.

2.1.2 Notification and Distribution of Materials. The Company shall notify the Investors in writing of the effectiveness of the Resale Shelf Registration Statement and shall furnish to them, without charge, such number of copies of the Resale Shelf Registration Statement (including any amendments, supplements and exhibits), the prospectus contained therein (including each preliminary prospectus and all related amendments and supplements) and any documents incorporated by reference in the Resale Shelf Registration Statement or such other documents as the Investors may reasonably request in order to facilitate the sale of the Registrable Securities in the manner described in the Resale Shelf Registration Statement.

2.1.3 Amendments and Supplements. Subject to the provisions of Section 2.1.1 above, the Company shall promptly prepare and file with the Commission from time to time such amendments and supplements to the Resale Shelf Registration Statement and prospectus used in connection therewith as may be necessary to keep the Resale Shelf Registration Statement effective and to comply with the provisions of the Securities Act with respect to the disposition of all the Registrable Securities during the Effectiveness Period.

2.1.4 Notwithstanding the registration obligations set forth in this Section 2.1, in the event the Commission informs the Company that all of the Registrable Securities cannot, as a result of the application of Rule 415, be registered for resale as a secondary offering on a single registration statement, the Company agrees to promptly (i) inform each of the holders thereof and use its commercially reasonable efforts to file amendments to the Resale Shelf Registration Statement as required by the Commission and/or (ii) withdraw the Resale Shelf Registration Statement and file a new registration statement (a “New Registration Statement”), in either case covering the maximum number of Registrable Securities permitted to be registered by the Commission, on Form F-3 or such other form available to register for resale the Registrable Securities as a secondary offering; provided, however, that prior to filing such amendment or New Registration Statement, the Company shall be obligated to use its commercially reasonable efforts to advocate with the Commission for the registration of all of the Registrable Securities in accordance with any publicly-available written or oral guidance, comments, requirements or requests of the Commission staff (the “SEC Guidance”), including without limitation, the Manual of Publicly Available Telephone Interpretations D.29. Notwithstanding any other provision of this Agreement, if any SEC Guidance sets forth a limitation of the number of Registrable Securities permitted to be registered on a particular Registration Statement as a secondary offering (and notwithstanding that the Company used diligent efforts to advocate with the Commission for the registration of all or a greater number of Registrable Securities), unless otherwise directed in writing by a holder as to its Registrable Securities, the number of Registrable Securities to be registered on such Registration Statement will be reduced on a pro rata basis based on the total number of Registrable Securities held by the Investors. In the event the Company amends the Resale Shelf Registration Statement or files a New Registration Statement, as the case may be, under clauses (i) or (ii) above, the Company will use its commercially reasonable efforts to file with the Commission, as promptly as allowed by Commission or SEC Guidance provided to the Company or to registrants of securities in general, one or more registration statements on Form F-3 or such other form available to register

for resale those Registrable Securities that were not registered for resale on the Resale Shelf Registration Statement, as amended, or the New Registration Statement.

2.1.5 Notice of Certain Events. The Company shall promptly notify the Investors in writing of any request by the Commission for any amendment or supplement to, or additional information in connection with, the Resale Shelf Registration Statement required to be prepared and filed hereunder (or prospectus relating thereto). The Company shall promptly notify each Investor in writing of the filing of the Resale Shelf Registration Statement or any prospectus, amendment or supplement related thereto or any post-effective amendment to the Resale Shelf Registration Statement and the effectiveness of any post-effective amendment.

(a) If the Company shall receive a request from the holders of holders of at least 15% of the then outstanding number of Registrable Securities(the requesting holder(s) shall be referred to herein as the “Requesting Holder”, and collectively, the “Requesting Holders”) that the Company effect the Underwritten Takedown of all or any portion of the Requesting Holder’s Registrable Securities, and specifying the intended method of disposition thereof, then the Company shall promptly give notice of such requested Underwritten Takedown (each such request shall be referred to herein as a “Demand Takedown”) at least 10 Business Days prior to the anticipated filing date of the prospectus or supplement relating to such Demand Takedown to the other Investors and thereupon shall use its reasonable best efforts to effect, as expeditiously as possible, the offering in such Underwritten Takedown of:

(i) subject to the restrictions set forth in Section 2.2.4, all Registrable Securities for which the Requesting Holder has requested such offering under Section 2.1.5(a); and

(ii) subject to the restrictions set forth in Section 2.2.4, all other Registrable Securities that any holders of Registrable Securities (all such holders, together with the Requesting Holder, the “Selling Holders”) have requested the Company to offer by request received by the Company within seven (7) Business Days after such holders receive the Company’s notice of the Demand Takedown, all to the extent necessary to permit the disposition (in accordance with the intended methods thereof as aforesaid) of the Registrable Securities so to be offered.

(b) Promptly after the expiration of the seven Business Day period referred to in Section 2.1.5(a)(ii), the Company will notify all Selling Holders of the identities of the other Selling Holders and the number of shares of Registrable Securities requested to be included in such Underwritten Takedown.

(d) If the managing underwriter in an Underwritten Takedown advises the Company and the Requesting Holder that, in its view, the number of shares of Registrable Securities requested to be included in such Underwritten Takedown exceeds the largest number of shares that can be sold without having an adverse effect on such offering, including the price

at which such shares can be sold, the shares included in such Underwritten Takedown will be reduced by the Registrable Securities held by the Selling Holders (applied on a pro rata basis based on the total number of Registrable Securities held by such Investors, subject to a determination by the Commission that certain Investors must be reduced first based on the number of Registrable Securities held by such Investors).

2.1.6 Selection of Underwriters. The Largest Holder, after consultation with the Requesting Holders (if other than the Largest Holder), shall have the right to select an Underwriter or Underwriters in connection with such Underwritten Takedown, which Underwriter or Underwriters shall be reasonably acceptable to the Company. In connection with an Underwritten Takedown, the Company shall enter into customary agreements (including an underwriting agreement in customary form) and take such other actions as are reasonably required in order to expedite or facilitate the disposition of the Registrable Securities in such Underwritten Takedown, including, if necessary, the engagement of a “qualified independent underwriter” in connection with the qualification of the underwriting arrangements with the Financial Industry Regulatory Authority, Inc.

2.1.7 Registrations effected pursuant to this Section 2.1 shall not be counted as Demand Registrations effected pursuant to Section 2.2.

2.2 Demand Registration.

2.2.1 Request for Registration. At any time and from time to time after the expiration of a Lock-Up to which the relevant Registrable Securities are subject, holders of at least 15% of the then outstanding number of Registrable Securities (the “Initial Demanding Holders”) may make a written demand for Registration under the Securities Act of at least 15% of the then outstanding number of Registrable Securities, on Form F-1 or any similar long-form registration statement (“Form F-1”) or, if then available, on Form F-3. Each registration requested pursuant to this Section 2.2.1 is referred to herein as a “Demand Registration”. Any demand for a Demand Registration shall specify the number of shares of Registrable Securities proposed to be sold and the intended method(s) of distribution thereof. The Company will notify all Investors that are holders of Registrable Securities of the demand, and each such holder of Registrable Securities who wishes to include all or a portion of such holder’s Registrable Securities in the Demand Registration (each such holder including shares of Registrable Securities in such registration, a “Demanding Holder” and collectively, the “Demanding Holders”) shall so notify the Company within 15 days after the receipt by the holder of the notice from the Company. Upon any such request, the Demanding Holders shall be entitled to have their Registrable Securities included in the Demand Registration, subject to Section 2.2.4 and the provisos set forth in Section 3.1.1.

2.2.2 Effective Registration. A Registration will not count as a Demand Registration until the Registration Statement filed with the Commission with respect to such Demand Registration has been declared effective and the Company has complied with all of its obligations under this Agreement with respect thereto; provided, however, that if, after such Registration Statement has been declared effective, the offering of Registrable Securities pursuant to a Demand Registration is interfered with by any stop order or injunction of the Commission or any other governmental agency or court, the Registration Statement with respect

to such Demand Registration will be deemed not to have been declared effective, unless and until, (i) such stop order or injunction is removed, rescinded or otherwise terminated, and (ii) the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder), thereafter elects to continue the offering; provided, further, that the Company shall not be obligated to file a second Registration Statement until a Registration Statement that has been filed is counted as a Demand Registration or is terminated.

2.2.3 Underwritten Offering. If the Demanding Holders so elect and such holders so advise the Company as part of their written demand for a Demand Registration, the offering of such Registrable Securities pursuant to such Demand Registration shall be in the form of an underwritten offering. In such event, the right of any holder to include its Registrable Securities in such registration shall be conditioned upon such holder’s participation in such underwriting and the inclusion of such holder’s Registrable Securities in the underwriting to the extent provided herein. All Demanding Holders proposing to distribute their Registrable Securities through such underwriting shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters selected for such underwriting by the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder), and subject to the approval of the Company.

2.2.4 Reduction of Offering. If the managing Underwriter or Underwriters for a Demand Registration that is to be an underwritten offering advises the Company and the Demanding Holders in writing that the dollar amount or number of shares of Registrable Securities which the Demanding Holders desire to sell, taken together with all other Ordinary Shares or other securities which the Company desires to sell and the Ordinary Shares, if any, as to which registration has been requested pursuant to written contractual piggy-back registration rights held by other shareholders of the Company who desire to sell, exceeds the maximum dollar amount or maximum number of shares that can be sold in such offering without adversely affecting the proposed offering price, the timing, the distribution method, or the probability of success of such offering (such maximum dollar amount or maximum number of shares, as applicable, the “Maximum Number of Shares”), then the Company shall include in such registration:

(a) first, the Registrable Securities as to which Demand Registration has been requested by the Demanding Holders (pro rata in accordance with the number of shares that each such Demanding Holder has requested be included in such registration, regardless of the number of shares held by each such Demanding Holder (such proportion is referred to herein as “Pro Rata”)) that can be sold without exceeding the Maximum Number of Shares;

(b) second, to the extent that the Maximum Number of Shares has not been reached under the foregoing clause (a), the Ordinary Shares or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares;

(c) third, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (a) and (b), the Ordinary Shares or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual arrangements with such persons, as to which “piggy-back” registration has been requested by the holders thereof, Pro Rata, that can be sold without exceeding the Maximum Number of Shares.

2.2.5 Withdrawal. If the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder), disapproves of the terms of any underwriting or are not entitled to include all of their Registrable Securities in any offering, such Demanding Holder may elect to withdraw from such offering by giving written notice to the Company and the Underwriter or Underwriters of their request to withdraw prior to the effectiveness of the Registration Statement filed with the Commission with respect to such Demand Registration. If the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder), withdraws from a proposed offering relating to a Demand Registration, then either the Demanding Holders shall reimburse the Company for the costs associated with the withdrawn registration (in which case such registration shall not count as a Demand Registration provided for in Section 2.1) or the withdrawn registration shall count as a Demand Registration provided for in Section 2.1.

2.3 Piggy-Back Registration.

2.3.1 Piggy-Back Rights. If at any time after the expiration of a Lock-Up to which the relevant Registrable Securities are subject, the Company proposes to file a Registration Statement under the Securities Act with respect to an offering of equity securities, or securities or other obligations exercisable or exchangeable for, or convertible into, equity securities, by the Company for its own account or for shareholders of the Company for their account (or by the Company and by shareholders of the Company including, without limitation, pursuant to Section 2.1), other than a Registration Statement (i) filed in connection with any employee stock option or other benefit plan, (ii) for an exchange offer or offering of securities solely to the Company’s existing shareholders, (iii) for an offering of debt that is convertible into equity securities of the Company or (iv) for a dividend reinvestment plan, then the Company shall (x) give written notice of such proposed filing to the holders of Registrable Securities as soon as practicable but in no event less than ten (10) days before the anticipated filing date, which notice shall describe the amount and type of securities to be included in such offering, the intended method(s) of distribution, and the name of the proposed managing Underwriter or Underwriters, if any, of the offering, and (y) offer to the holders of Registrable Securities in such notice the opportunity to register the sale of such number of shares of Registrable Securities as such holders may request in writing within five days following receipt of such notice (a “Piggy-Back Registration”). The Company shall cause such Registrable Securities to be included in such registration and shall use its best efforts to cause the managing Underwriter or Underwriters of a proposed underwritten offering to permit the Registrable Securities requested to be included in a Piggy-Back Registration on the same terms and conditions as any similar securities of the Company and to permit the sale or other disposition of such Registrable Securities in accordance with the intended method(s) of distribution thereof. All holders of Registrable Securities proposing to distribute their securities through a Piggy-Back Registration that involves an Underwriter or Underwriters shall enter into an underwriting agreement in customary form with the Underwriter or Underwriters selected for such Piggy-Back Registration.

2.3.2 Reduction of Offering. If the managing Underwriter or Underwriters for a Piggy-Back Registration that is to be an underwritten offering advises the Company and the holders of Registrable Securities in writing that the dollar amount or number of Ordinary Shares which the Company desires to sell, taken together with Ordinary Shares, if any, as to which registration has been demanded pursuant to written contractual arrangements

with persons other than the holders of Registrable Securities hereunder and the Registrable Securities as to which registration has been requested under this Section 2.3, exceeds the Maximum Number of Shares, then the Company shall include in any such registration:

(a) if the registration is undertaken for the Company’s account:

(i) first, the Ordinary Shares or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares;

(ii) second, to the extent that the Maximum Number of Shares has not been reached under the foregoing clause (i), the Ordinary Shares or other securities, if any, comprised of Registrable Securities, as to which registration has been requested pursuant to the terms hereof, that can be sold without exceeding the Maximum Number of Shares, Pro Rata; and

(iii) third, to the extent that the Maximum Number of shares has not been reached under the foregoing clauses (i) and (ii), the Ordinary Shares or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual piggy-back registration rights with such persons and that can be sold without exceeding the Maximum Number of Shares; and

(b) if the registration is a “demand” registration undertaken at the demand of persons other than the holders of Registrable Securities:

(i) first, the Ordinary Shares or other securities for the account of the demanding persons that can be sold without exceeding the Maximum Number of Shares;

(ii) second, to the extent that the Maximum Number of Shares has not been reached under the foregoing clause (i), the Ordinary Shares or other securities, if any, comprised of Registrable Securities, Pro Rata, as to which registration has been requested pursuant to the terms hereof, that can be sold without exceeding the Maximum Number of Shares;

(iii) third, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (i) and (ii), the Ordinary Shares or other securities that the Company desires to sell that can be sold without exceeding the Maximum Number of Shares; and

(iv) fourth, to the extent that the Maximum Number of Shares has not been reached under the foregoing clauses (i), (ii) and (iii), the Ordinary Shares or other securities for the account of other persons that the Company is obligated to register pursuant to written contractual arrangements with such persons, that can be sold without exceeding the Maximum Number of Shares.

2.3.3 Withdrawal. Any holder of Registrable Securities may elect to withdraw such holder’s request for inclusion of Registrable Securities in any Piggy-Back Registration by giving written notice to the Company of such request to withdraw prior to the effectiveness of the Registration Statement. The Company (whether on its own determination or as the result of a withdrawal by persons making a demand pursuant to written contractual obligations) may withdraw a Registration Statement at any time prior to the effectiveness of such Registration Statement. Notwithstanding any such withdrawal, the Company shall pay all expenses incurred by the holders of Registrable Securities in connection with such Piggy-Back Registration as provided in Section 3.3. .

2.4 Registration of Class B Shares. The Company shall use its reasonable best efforts to include the Ordinary Shares issuable in exchange for Boulevard Class B Shares in the Registration Statement to be filed with the Commission pursuant to Section 7.4.1 of the Warrant Agreement, dated as of September 21, 2015, as amended, by and between Boulevard and Continental Stock Transfer & Trust Company, as warrant agent (the “Warrant Agreement”).

3. REGISTRATION PROCEDURES.

3.1 Filings; Information. Whenever the Company is required to effect the registration of any Registrable Securities pursuant to Section 2, the Company shall use its reasonable best efforts to effect the registration and sale of such Registrable Securities in accordance with the intended method(s) of distribution thereof as expeditiously as practicable, and in connection with any such request:

3.1.1 Filing Registration Statement. The Company shall use its reasonable best efforts to, as expeditiously as possible after receipt of a request for a Demand Registration pursuant to Section 2.1, prepare and file with the Commission a Registration Statement on any form for which the Company then qualifies or which counsel for the Company shall deem appropriate and which form shall be available for the sale of all Registrable Securities to be registered thereunder in accordance with the intended method(s) of distribution thereof, and shall use its reasonable best efforts to cause such Registration Statement to become effective and use its reasonable best efforts to keep it effective for the Effectiveness Period; provided, however, that the Company shall have the right to defer any Demand Registration for up to 60 days, and any Piggy-Back Registration for such period as may be applicable to deferment of any Demand Registration to which such Piggy-Back Registration relates, in each case if the Company shall furnish to the holders a certificate signed by the President or Chairman of the Company stating that, in the good faith judgment of the Board of Directors of the Company, it would be materially detrimental to the Company and its shareholders for such Registration Statement to be effected at such time; provided further, however, that the Company shall not have the right to exercise the right set forth in the immediately preceding proviso for more than a total of 60 days in any 365-day period in respect of a Demand Registration hereunder.

3.1.2 Copies. The Company shall, prior to filing a Registration Statement or prospectus, or any amendment or supplement thereto, furnish without charge to the holders of Registrable Securities included in such registration, and such holders’ legal counsel, copies of such Registration Statement as proposed to be filed, each amendment and supplement to such Registration Statement (in each case including all exhibits thereto and documents

incorporated by reference therein), the prospectus included in such Registration Statement (including each preliminary prospectus), and such other documents as the holders of Registrable Securities included in such registration or legal counsel for any such holders may request in order to facilitate the disposition of the Registrable Securities owned by such holders.

3.1.3 Amendments and Supplements. The Company shall prepare and file with the Commission such amendments, including post-effective amendments, and supplements to such Registration Statement and the prospectus used in connection therewith as may be necessary to keep such Registration Statement effective and in compliance with the provisions of the Securities Act until all Registrable Securities and other securities covered by such Registration Statement have been disposed of in accordance with the intended method(s) of distribution set forth in such Registration Statement or such securities have been withdrawn (the “Effectiveness Period”).

3.1.4 Notification. After the filing of a Registration Statement, the Company shall promptly, and in no event more than two Business Days after such filing, notify the holders of Registrable Securities included in such Registration Statement of such filing, and shall further notify such holders promptly and confirm such advice in writing in all events within two (2) Business Days of the occurrence of any of the following: (i) when such Registration Statement becomes effective; (ii) when any post-effective amendment to such Registration Statement becomes effective; (iii) the issuance or threatened issuance by the Commission of any stop order (and the Company shall take all actions required to prevent the entry of such stop order or to remove it if entered); and (iv) any request by the Commission for any amendment or supplement to such Registration Statement or any prospectus relating thereto or for additional information or of the occurrence of an event requiring the preparation of a supplement or amendment to such prospectus so that, as thereafter delivered to the purchasers of the securities covered by such Registration Statement, such prospectus will not contain an untrue statement of a material fact or omit to state any material fact required to be stated therein or necessary to make the statements therein not misleading, and promptly make available to the holders of Registrable Securities included in such Registration Statement any such supplement or amendment; except that before filing with the Commission a Registration Statement or prospectus or any amendment or supplement thereto, including documents incorporated by reference, the Company shall furnish to the holders of Registrable Securities included in such Registration Statement and to the legal counsel for any such holders, copies of all such documents proposed to be filed sufficiently in advance of filing to provide such holders and legal counsel with a reasonable opportunity to review such documents and comment thereon.

3.1.5 Securities Laws Compliance. The Company shall use its reasonable best efforts to (i) register or qualify the Registrable Securities covered by the Registration Statement under such securities or “blue sky” laws of such jurisdictions in the United States as the holders of Registrable Securities included in such Registration Statement (in light of their intended plan of distribution) may reasonably request and (ii) take such action necessary to cause such Registrable Securities covered by the Registration Statement to be registered with or approved by such other governmental authorities as may be necessary by virtue of the business and operations of the Company and do any and all other acts and things that may be necessary or advisable to enable the holders of Registrable Securities included in such Registration Statement to consummate the disposition of such Registrable Securities in such

jurisdictions; provided, however, that the Company shall not be required to qualify generally to do business in any jurisdiction where it would not otherwise be required to qualify but for this paragraph or subject itself to taxation in any such jurisdiction.

3.1.6 Agreements for Disposition. The Company shall enter into customary agreements (including, if applicable, an underwriting agreement in customary form) and take such other actions as are reasonably required in order to expedite or facilitate the disposition of such Registrable Securities. The representations, warranties and covenants of the Company in any underwriting agreement which are made to or for the benefit of any Underwriters, to the extent applicable, shall also be made to and for the benefit of the holders of Registrable Securities included in such registration statement, and the representations, warranties and covenants of the holders of Registrable Securities included in such registration statement in any underwriting agreement which are made to or for the benefit of any Underwriters, to the extent applicable, shall also be made to and for the benefit of the Company.

3.1.7 Comfort Letter. The Company shall obtain a “cold comfort” letter from the Company’s independent registered public accountants in the event of an underwritten offering, in customary form and covering such matters of the type customarily covered by “cold comfort” letters as the managing Underwriter may reasonably request, and reasonably satisfactory to the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder).

3.1.8 Opinions. On the date the Registrable Securities are delivered for sale pursuant to any Registration, the Company shall obtain an opinion, dated such date, of one (1) counsel representing the Company for the purposes of such Registration, addressed to the holders, the placement agent or sales agent, if any, and the Underwriters, if any, covering such legal matters with respect to the Registration in respect of which such opinion is being given as the holders, placement agent, sales agent, or Underwriter may reasonably request and as are customarily included in such opinions, and reasonably satisfactory to the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder).

3.1.9 Cooperation. The principal executive officer of the Company, the principal financial officer of the Company, the principal accounting officer of the Company and all other officers and members of the management of the Company shall cooperate fully in any offering of Registrable Securities hereunder, which cooperation shall include, without limitation, the preparation of the Registration Statement with respect to such offering and all other offering materials and related documents, and participation in meetings with Underwriters, attorneys, accountants and potential investors.

3.1.10 Records. Upon execution of confidentiality agreements, the Company shall make available for inspection by the holders of Registrable Securities included in such Registration Statement, any Underwriter participating in any disposition pursuant to such registration statement and any attorney, accountant or other professional retained by any holder of Registrable Securities included in such Registration Statement or any Underwriter, all financial and other records, pertinent corporate documents and properties of the Company, as shall be necessary to enable them to exercise their due diligence responsibility, and cause the

Company’s officers, directors and employees to supply all information requested by any of them in connection with such Registration Statement.

3.1.11 Earnings Statement. The Company shall comply with all applicable rules and regulations of the Commission and the Securities Act, and make available to its shareholders, as soon as practicable, an earnings statement covering a period of 12 months, which earnings statement shall satisfy the provisions of Section 11(a) of the Securities Act and Rule 158 thereunder.

3.1.12 Listing. The Company shall use its reasonable best efforts to cause all Registrable Securities included in any Registration Statement to be listed on such exchanges or otherwise designated for trading in the same manner as similar securities issued by the Company are then listed or designated.

3.2 Obligation to Suspend Distribution. Upon receipt of any notice from the Company of the happening of any event of the kind described in Section 3.1.4(iv), or, upon any suspension by the Company, pursuant to a written xxxxxxx xxxxxxx compliance program adopted by the Company’s Board of Directors, of the ability of all “insiders” covered by such program to transact in the Company’s securities because of the existence of material non-public information, each holder of Registrable Securities included in any registration shall immediately discontinue disposition of such Registrable Securities pursuant to the Registration Statement covering such Registrable Securities until such holder receives the supplemented or amended prospectus contemplated by Section 3.1.4(iv) or the restriction on the ability of “insiders” to transact in the Company’s securities is removed, as applicable, and, if so directed by the Company, each such holder will deliver to the Company all copies, other than permanent file copies then in such holder’s possession, of the most recent prospectus covering such Registrable Securities at the time of receipt of such notice.

3.3 Registration Expenses. The Company shall bear all costs and expenses incurred in connection with the Resale Shelf Registration Statement pursuant to Section 2.1, any Demand Registration pursuant to Section 2.1, any Demand Takedown pursuant to Section 2.1.5(a)(i), any Piggy-Back Registration pursuant to Section 2.3, and any registration on Form F-3 effected pursuant to Section 2.3, and all expenses incurred in performing or complying with its other obligations under this Agreement, whether or not the Registration Statement becomes effective, including, without limitation: (i) all registration and filing fees; (ii) fees and expenses of compliance with securities or “blue sky” laws (including fees and disbursements of counsel in connection with blue sky qualifications of the Registrable Securities); (iii) printing expenses; (iv) the Company’s internal expenses (including, without limitation, all salaries and expenses of its officers and employees); (v) the fees and expenses incurred in connection with the listing of the Registrable Securities as required by Section 3.1.10; (vi) any fees of the Financial Industry Regulatory Authority, Inc.; (vii) fees and disbursements of counsel for the Company and fees and expenses for independent certified public accountants retained by the Company; (viii) the fees and expenses of any special experts retained by the Company in connection with such registration and (ix) the fees and expenses of one legal counsel selected by the Largest Holder, after consultation with the Initial Demanding Holders (if other than the Largest Holder). The Company shall have no obligation to pay any underwriting discounts or selling commissions attributable to the Registrable Securities being sold by the holders thereof, which underwriting

discounts or selling commissions shall be borne by such holders. Additionally, in an underwritten offering, all selling shareholders and the Company shall bear the expenses of the Underwriter pro rata in proportion to the respective amount of shares each is selling in such offering.

3.4 Information. The holders of Registrable Securities shall promptly provide such information as may reasonably be requested by the Company, or the managing Underwriter, if any, in connection with the preparation of any Registration Statement, including amendments and supplements thereto, in order to effect the registration of any Registrable Securities under the Securities Act and in connection with the Company’s obligation to comply with Federal and applicable state securities laws.

4. INDEMNIFICATION AND CONTRIBUTION.

4.1 Indemnification by the Company. The Company agrees to indemnify and hold harmless each Investor and each other holder of Registrable Securities, and each of their respective officers, employees, Affiliates, directors, partners, members, attorneys and agents, and each person, if any, who controls an Investor and each other holder of Registrable Securities (within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act) (each, an “Investor Indemnified Party”), from and against any expenses, losses, judgments, claims, damages or liabilities, whether joint or several, arising out of or based upon any untrue statement (or allegedly untrue statement) of a material fact contained in any Registration Statement under which the sale of such Registrable Securities was registered under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration Statement, or any amendment or supplement to such Registration Statement, or arising out of or based upon any omission (or alleged omission) to state a material fact required to be stated therein or necessary to make the statements therein not misleading, or any violation by the Company of the Securities Act or any rule or regulation promulgated thereunder applicable to the Company and relating to action or inaction required of the Company in connection with any such registration; and the Company shall promptly reimburse the Investor Indemnified Party for any legal and any other expenses reasonably incurred by such Investor Indemnified Party in connection with investigating and defending any such expense, loss, judgment, claim, damage, liability or action; provided, however, that the Company will not be liable in any such case to the extent that any such expense, loss, claim, damage or liability arises out of or is based upon any untrue statement or allegedly untrue statement or omission or alleged omission made in such Registration Statement, preliminary prospectus, final prospectus, or summary prospectus, or any such amendment or supplement, in reliance upon and in conformity with information furnished to the Company, in writing, by such selling holder expressly for use therein, or is based on any selling holder’s violation of the federal securities laws (including Regulation M) or failure to sell the Registrable Securities in accordance with the plan of distribution contained in the prospectus.

4.2 Indemnification by Holders of Registrable Securities. Each selling holder of Registrable Securities will, in the event that any registration is being effected under the Securities Act pursuant to this Agreement of any Registrable Securities held by such selling holder, indemnify and hold harmless the Company, each of its directors and officers, and each other selling holder and each other person, if any, who controls another selling holder within the meaning of the Securities Act, against any losses, claims, judgments, damages or liabilities,

whether joint or several, insofar as such losses, claims, judgments, damages or liabilities (or actions in respect thereof) arise out of or are based upon any untrue statement or allegedly untrue statement of a material fact contained in any Registration Statement under which the sale of such Registrable Securities was registered under the Securities Act, any preliminary prospectus, final prospectus or summary prospectus contained in the Registration Statement, or any amendment or supplement to the Registration Statement, or arise out of or are based upon any omission or the alleged omission to state a material fact required to be stated therein or necessary to make the statement therein not misleading, if the statement or omission was made in reliance upon and in conformity with information furnished in writing to the Company by such selling holder expressly for use therein, or is based on any selling holder’s violation of the federal securities laws (including Regulation M) or failure to sell the Registrable Securities in accordance with the plan of distribution contained in the prospectus, and shall reimburse the Company, its directors and officers, and each other selling holder or controlling person for any legal or other expenses reasonably incurred by any of them in connection with investigation or defending any such loss, claim, damage, liability or action. Each selling holder’s indemnification obligations hereunder shall be several and not joint and shall be limited to the amount of any net proceeds actually received by such selling holder.

4.3 Conduct of Indemnification Proceedings. Promptly after receipt by any person of any notice of any loss, claim, damage or liability or any action in respect of which indemnity may be sought pursuant to Sections 4.1 or 4.2, such person (the “Indemnified Party”) shall, if a claim in respect thereof is to be made against any other person for indemnification hereunder, notify such other person (the “Indemnifying Party”) in writing of the loss, claim, judgment, damage, liability or action; provided, however, that the failure by the Indemnified Party to notify the Indemnifying Party shall not relieve the Indemnifying Party from any liability which the Indemnifying Party may have to such Indemnified Party hereunder, except and solely to the extent the Indemnifying Party is actually prejudiced by such failure. If the Indemnified Party is seeking indemnification with respect to any claim or action brought against the Indemnified Party, then the Indemnifying Party shall be entitled to participate in such claim or action, and, to the extent that it wishes, jointly with all other Indemnifying Parties, to assume control of the defense thereof with counsel satisfactory to the Indemnified Party. After notice from the Indemnifying Party to the Indemnified Party of its election to assume control of the defense of such claim or action, the Indemnifying Party shall not be liable to the Indemnified Party for any legal or other expenses subsequently incurred by the Indemnified Party in connection with the defense thereof other than reasonable costs of investigation; provided, however, that in any action in which both the Indemnified Party and the Indemnifying Party are named as defendants, the Indemnified Party shall have the right to employ separate counsel (but no more than one such separate counsel, which counsel is reasonably acceptable to the Indemnifying Party) to represent the Indemnified Party and its controlling persons who may be subject to liability arising out of any claim in respect of which indemnity may be sought by the Indemnified Party against the Indemnifying Party, with the fees and expenses of such counsel to be paid by such Indemnifying Party if, based upon the written opinion of counsel of such Indemnified Party, representation of both parties by the same counsel would be inappropriate due to actual or potential differing interests between them. No Indemnifying Party shall, without the prior written consent of the Indemnified Party, consent to entry of judgment or effect any settlement of any claim or pending or threatened proceeding in respect of which the Indemnified Party is or could have been a party and indemnity could have been sought hereunder by such

Indemnified Party, unless such judgment or settlement includes an unconditional release of such Indemnified Party from all liability arising out of such claim or proceeding.

4.4 Contribution.

4.4.1 If the indemnification provided for in the foregoing Sections 4.1, 4.2 and 4.3 is unavailable to any Indemnified Party in respect of any loss, claim, damage, liability or action referred to herein, then each such Indemnifying Party, in lieu of indemnifying such Indemnified Party, shall contribute to the amount paid or payable by such Indemnified Party as a result of such loss, claim, damage, liability or action in such proportion as is appropriate to reflect the relative fault of the Indemnified Parties and the Indemnifying Parties in connection with the actions or omissions which resulted in such loss, claim, damage, liability or action, as well as any other relevant equitable considerations. The relative fault of any Indemnified Party and any Indemnifying Party shall be determined by reference to, among other things, whether the untrue or alleged untrue statement of a material fact or the omission or alleged omission to state a material fact relates to information supplied by such Indemnified Party or such Indemnifying Party and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission.

4.4.2 The parties hereto agree that it would not be just and equitable if contribution pursuant to this Section 4.4.2 were determined by pro rata allocation or by any other method of allocation which does not take account of the equitable considerations referred to in the immediately preceding Section 4.4.1.

4.4.3 The amount paid or payable by an Indemnified Party as a result of any loss, claim, damage, liability or action referred to in the immediately preceding paragraph shall be deemed to include, subject to the limitations set forth above, any legal or other expenses incurred by such Indemnified Party in connection with investigating or defending any such action or claim. Notwithstanding the provisions of this Section 4.4, no holder of Registrable Securities shall be required to contribute any amount in excess of the dollar amount of the net proceeds (after payment of any underwriting fees, discounts, commissions or taxes) actually received by such holder from the sale of Registrable Securities which gave rise to such contribution obligation. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation.

5. RULES 144, 144A AND REGULATION S.

5.1 The Company shall file the reports required to be filed by it under the Securities Act and the Exchange Act and the rules and regulations adopted by the Commission thereunder (or, if the Company is not required to file such reports, it will, upon the request of any Holder of Registrable Securities, make publicly available such necessary information for so long as necessary to permit sales that would otherwise be permitted by this Agreement pursuant to Rule 144, Rule 144A or Regulation S under the Securities Act, as such Rules may be amended from time to time or any similar rule or regulation hereafter adopted by the Commission), and it will take such further action as any holder of Registrable Securities may reasonably request, all to the extent required from time to time to enable such holder to sell Registrable Securities

without Registration under the Securities Act in transactions that would otherwise be permitted by this Agreement and within the limitation of the exemptions provided by (i) Rules 144, 144A or Regulation S under the Securities Act, as such Rules may be amended from time to time, or (ii) any similar rule or regulation hereafter adopted by the Commission. Upon the request of any holder of Registrable Securities, the Company will deliver to such holder a written statement as to whether it has complied with such requirements and, if not, the specifics thereof.

5.2 If requested, the Company shall cooperate with the holders of Registrable Securities to facilitate the timely preparation and delivery of certificates representing such Registrable Securities and not bearing any restrictive legends (including the delivery of any required opinions to the applicable transfer agent).

6. LOCK-UP.

6.1 Lock-Up. Each of the Lock-Up Holders agrees not to, either directly or indirectly, during the Restricted Period:

6.1.1 sell or offer or contract to sell or offer, grant any option or warrant for the sale of, assign, transfer, pledge, hypothecate, or otherwise encumber or dispose of (all being referred to as a “Transfer”) any legal or beneficial interest in Registrable Securities (which excludes, for the avoidance of doubt, any Ordinary Shares acquired after the Closing Date in any open-market transaction) (together, the “Lock-Up Securities”);

6.1.2 enter into any swap or any other agreement or any transaction that transfers, in whole or in part, directly or indirectly, the economic consequence of ownership of any of the Lock-Up Securities, whether such swap transaction is to be settled by delivery of any Lock-Up Securities or other securities of any person, in cash or otherwise; or

6.1.3 publicly disclose the intention to make any Transfer, or to enter into any transaction, swap, hedge or other arrangement relating to any of the Lock-Up Securities.

6.2 Permitted Transfers. The limitations set forth in Section 6.1 shall not apply to any Transfer of (a) Lock-Up Securities or Registrable Securities by any Investor that is not a Lock-up Holder or (b) Lock-Up Securities:

6.2.1 in the case of a Lock-Up Holder that is an entity, to any Affiliate of such Lock-Up Holder;

6.2.2 in the case of a Lock-Up Holder who is an individual, either during such Lock-Up Holder’s lifetime or on the death of such Lock-Up Holder, (i)(a) by gift, (b) by will or intestate succession, or (c) by judicial decree, in each case to such Lock-Up Holder’s Family Members, including a qualified domestic relations order, or (ii) to trusts, limited partnerships and similar entities primarily for the direct or indirect benefit of such Lock-Up Holder or his or her Family Members;

6.2.3 by a Lock-Up Holder to any member, director or officer, or any Affiliates of such Lock-Up Holder or the members of such Lock-Up Holder;

6.2.4 by Xxxxxx Xxxxxxxxx Filho (or his Family Members) or Cygnus Asset Holding Ltd. or any of their respective Affiliates to Gisele Xxxx xx Xxxxxx (or her Family Members or Affiliates (including Lyra Asset Holding Ltd.));

6.2.5 by Xxxxxx Xxxxxxxxx Filho (or his Family Members) or Cygnus Asset Holding Ltd. or any of their respective Affiliates to Banco BTG Pactual S.A. or any of its Affiliates as a result of the foreclosure of any lien (including a fiduciary lien), pledge, charge, security interest or encumbrance of any kind in respect of any Lock-Up Securities in connection with, or the transfer of such Lock-Up Securities to satisfy any obligations under, any loan, financing or lending arrangements between Xxxxxx Xxxxxxxxx Filho (or his Family Members) or Cygnus Asset Holding Ltd. or any of their respective Affiliates, on the one hand, and Banco BTG Pactual S.A. or any of its Affiliates, on the other hand;

6.2.6 in connection with the Company’s consummation of any merger, share exchange or similar transaction that results in all of the Company’s security holders having the right to exchange Lock-Up Securities for cash, securities or other property (or the provision of an irrevocable undertaking in respect thereof);

6.2.7 pursuant to the acceptance of a general offer for all the share capital of the Company made to all holders thereof on equal terms (or the provision of an irrevocable undertaking in respect thereof); and

6.2.8 in connection with the Debt Restructuring (as defined in the Business Combination Agreement),

provided that, in the case of Section 6.2.1 through Section 6.2.4, prior to or simultaneously with the Transfer, the transferee shall execute a legal, valid and binding agreement stating that the transferee is receiving and holding the Lock-Up Securities subject to the provisions of this Section 6.

6.3 No Effect of Transfers. No Transfer of any Lock-Up Securities in violation of any provision of this Section 6 will be effective to pass any title to such Lock-Up Securities, or to create any interest therein in favor of, any person.

6.4 Restrictive Legend. Certificates representing Lock-Up Securities may bear the following legend: “THE SECURITIES REPRESENTED BY THIS CERTIFICATE ARE SUBJECT TO A LOCK-UP AGREEMENT AMONG THE REGISTERED OWNER OF SUCH SECURITIES, ESTRE AMBIENTAL, INC. AND CERTAIN OTHER PARTIES THERETO THAT MATERIALLY RESTRICTS THE TRANSFERABILITY OF THE SECURITIES. A COPY OF THE AGREEMENT IS ON FILE WITH ESTRE AMBIENTAL, INC.

6.5 Stop Transfer Instructions. In order to ensure compliance with the provisions of this Section 6, each Lock-Up Holder agrees that the Company may issue appropriate “stop transfer” certificates or instructions with the Company’s transfer agent and registrar against the transfer of a Lock-Up Holder’s Lock-Up Securities, or otherwise make adequate provision to restrict the transferability of the Lock-Up Securities, in the event of a transfer other than in compliance with the provisions of Section 6 of this Agreement and that the Company may make appropriate notations to the same effect in its records

7. MISCELLANEOUS.

7.1 Other Registration Rights and Arrangements. The Company represents and warrants that no person, other than a holder of the Registrable Securities and other than pursuant to the Warrant Agreement, has any right to require the Company to register any of the Company’s share capital for sale or to include the Company’s share capital in any registration filed by the Company for the sale of shares for its own account or for the account of any other person. The Company and the Investors that are party to the Prior Agreement hereby terminate the Prior Agreement and any similar agreement in effect as of the date hereof. The Company shall not hereafter enter into any agreement with respect to its securities which is inconsistent with or violates the rights granted to the holders of Registrable Securities in this Agreement and in the event of any conflict between any such agreement or agreements and this Agreement, the terms of this Agreement shall prevail.

7.2 Assignment; No Third Party Beneficiaries. This Agreement and the rights, duties and obligations of the Company hereunder may not be assigned or delegated by the Company in whole or in part. This Agreement and the rights, duties and obligations of the holders of Registrable Securities hereunder may be freely assigned or delegated by such holder of Registrable Securities in conjunction with and to the extent of any permitted transfer of Registrable Securities by any such holder. This Agreement and the provisions hereof shall be binding upon and shall inure to the benefit of each of the parties hereto and their respective successors and assigns and the holders of Registrable Securities and their respective successors and permitted assigns. This Agreement is not intended to confer any rights or benefits on any persons that are not party hereto other than as expressly set forth in Section 4 and this Section 7.2. The rights of a holder of Registrable Securities under this Agreement may be transferred by such a holder to a transferee; provided, that such transfer is in compliance with the provisions of Section 6 of this Agreement; provided, further, that such transferee has executed and delivered to the Company a properly completed agreement to be bound by the terms of this Agreement substantially in form attached as an Exhibit hereto (an “Addendum Agreement”), and the transferor shall have delivered to the Company no later than 30 days following the date of the transfer, written notification of such transfer setting forth the name of the transferor, the name and address of the transferee, and the number of Registrable Securities so transferred. The execution of an Addendum Agreement shall constitute a permitted amendment of this Agreement.

7.3 Notices. All notices, demands, requests, consents, approvals or other communications (collectively, “Notices”) required or permitted to be given hereunder or which are given with respect to this Agreement shall be in writing and shall be personally served, delivered by reputable air courier service with charges prepaid, or transmitted by facsimile or email, addressed as set forth below, or to such other address as such party shall have specified most recently by written notice. Notice shall be deemed given (i) on the date of service or transmission if personally served or transmitted by telegram, telex or facsimile; provided, that if such service or transmission is not on a Business Day or is after normal business hours, then such notice shall be deemed given on the next Business Day (ii) one Business Day after being deposited with a reputable courier service with an order for next-day delivery, to the parties as follows:

	If to the Company:

		Estre Ambiental, Inc.
		1830, Presidente Xxxxxxxxx Xxxxxxxxxx Avenue, Tower I, 3rd floor
		Itaim Bibi, São Paulo - SP - Zip code 04543-900
		Attention: Xxxxxx Xxxxxxx Xxxxxxxx
		Xxxxx Xxxxx de Sá Volotão
		Email: xxxxxx.xxxxxxxx@xxxxx.xxx.xx
		xxxxx.xxxxxxx@xxxxx.xxx.xx

	with a copy to:

		Skadden, Arps, Slate, Xxxxxxx & Xxxx LLP
		Xxxx Xxxxx Xxxxxx
		Xxx Xxxx, Xxx Xxxx 00000
		Attn: Xxxxxxx Xxxxxx / Xxxxxxx xxx Xxxxxxx
		Facsimile: (000) 000-0000
		Email: Xxxxxxx.Xxxxxx@xxxxxxx.xxx/Xxxxxxx.xxxXxxxxxx@xxxxxxx.xxx

	If to the Boulevard Acquisition Sponsor II, LLC:

		000 Xxxx Xxxxxx, 0xx Xxxxx
		x/x Xxxxxx Xxxxxxx Xxxxx
		Xxx Xxxx, Xxx Xxxx 00000
		Attn: Xxxx Xxxxxxxxx
		Email: xxxxxxxxxx@xxxxxxxxxxxxx.xxx

	with a copy to:

		Xxxxxxxxx Traurig, LLP
		000 Xxxx Xxxxxx
		Xxx Xxxx, XX 00000
		Attn: Xxxx X. Annex
		Facsimile: (000) 000-0000
		Email: xxxxxx@xxxxx.xxx

If to an Investor, to the address set forth under such Investor’s signature to this Agreement or to such Investor’s address as found in the Company’s books and records.

7.4 Severability. This Agreement shall be deemed severable, and the invalidity or unenforceability of any term or provision hereof shall not affect the validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, in lieu of any such invalid or unenforceable term or provision, the parties hereto intend that there shall be added as a part of this Agreement a provision as similar in terms to such invalid or unenforceable provision as may be possible that is valid and enforceable.

7.5 Counterparts. This Agreement may be executed in multiple counterparts, each of which shall be deemed an original, and all of which taken together shall constitute one and the same instrument.

7.6 Governing Law. This Agreement, and all claims or causes of action based upon, arising out of, or related to this Agreement or the transactions contemplated hereby, shall be governed by, and construed in accordance with, the Laws of the State of Delaware, without giving effect to principles or rules of conflict of laws to the extent such principles or rules would require or permit the application of Laws of another jurisdiction.

7.7 Jurisdiction; WAIVER OF TRIAL BY JURY. In any litigation, claim, action, suit, case, dispute, arbitration or other proceeding among the parties arising out of or relating to this Agreement or any of the transactions contemplated hereby, each of the parties (a) irrevocably and unconditionally consents and submits to the exclusive jurisdiction and venue of the Court of Chancery of the State of Delaware in and for New Castle County, Delaware; (b) agrees that it will not attempt to deny or defeat such jurisdiction by motion or other request for leave from such court; and (c) agrees that it will not bring any such action in any court other than the Court of Chancery for the State of Delaware in and for New Castle County, Delaware, or, if (and only if) such court finds it lacks subject matter jurisdiction, the Federal court of the United States of America sitting in Delaware, and appellate courts thereof. Service of process, summons, notice or document to any party’s address and in the manner set forth in Section 7.3 shall be effective service of process for any such action. EACH OF THE PARTIES HERETO HEREBY IRREVOCABLY WAIVES ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY ACTION BASED UPON, ARISING OUT OF OR RELATED TO THIS AGREEMENT OR THE TRANSACTIONS CONTEMPLATED HEREBY.

7.8 Entire Agreement. This Agreement (including all agreements entered into pursuant hereto and all certificates and instruments delivered pursuant hereto and thereto) constitute the entire agreement of the parties with respect to the subject matter hereof and supersede all prior and contemporaneous agreements, representations, understandings, negotiations and discussions between the parties, whether oral or written, including without limitation the Prior Agreement.

[Signature Page Follows]

IN WITNESS WHEREOF, the parties have caused this Registration Rights and Lock-Up Agreement to be executed and delivered by their duly authorized representatives as of the date first written above.

COMPANY:


ESTRE AMBIENTAL, INC. (f/k/a
Boulevard Acquisition Corp. II Cayman
Holding Company)


By:	/s/ Xxxxx Xxxxxxxx
	Name:	Xxxxx Xxxxxxxx
	Title:	Chief Executive Officer and Chief Financial Officer

[Signature Page to Registration Rights and Lock-up Agreement]

BOULEVARD ACQUISITION SPONSOR II, LLC


By:	/s/ Xxxx Xxxxx
	Name:	Xxxx Xxxxx
	Title:	Member

[Signature Page to Registration Rights and Lock-up Agreement]

CAPITOL ACQUISITION PARTNERS, LLC


By:	/s/ Xxxx Xxx
	Name:	Xxxx Xxx
	Title:	CEO

[Signature Page to Registration Rights and Lock-up Agreement]

	CYGNUS ASSET HOLDING LTD.


	By:	/s/ Xxxxxx Xxxxxxxxx Filho
		Name: Xxxxxx Xxxxxxxxx Filho
		Title: Sole Director

[Signature Page to Registration Rights and Lock-up Agreement]

BTG PACTUAL PRINCIPAL INVESTMENTS FUNDO DE INVESTIMENTO EM PARTICIPAÇÕES

By:	/s/ Xxxxxx xx Xxxxx Neto
	Name:	Xxxxxx xx Xxxxx Xxxx
	Title:	Attorney-in-fact

LYRA ASSET HOLDING LTD.

By:	/s/ Gisele Xxxx xx Xxxxxx
	Name:	Gisele Xxxx xx Xxxxxx
	Title:	Sole Director

GMI - Global Markets Investments LP

By:	/s/ Xxxxxx Xxxxx xx Xxxx
	Name:	Xxxxxx Xxxxx xx Xxxx
	Title:	Attorney

FUNDO DE INVESTIMENTO EM PARTICIPAÇÕES TURQUESA

By:	/s/ Xxxxxx xx Xxxxx Neto
	Name:	Xxxxxx xx Xxxxx Xxxx
	Title:	Attorney-in-fact

IRON FUNDO DE INVESTIMENTO EM PARTICIPAÇÕES

By:	/s/ Xxxxxx xx Xxxxx Neto
	Name:	Xxxxxx xx Xxxxx Xxxx
	Title:	Attorney-in-fact

SCHEDULE

Investors

Investor	Number of Ordinary Shares	Number of Sponsor Warrants
Former shareholders of Estre Ambiental S.A.
Cygnus Asset Holding Ltd.	12,585,474	0
BTG Pactual Principal Investments Fundo de Investimento em Participações	9,097,026	0
Lyra Asset Holding Ltd.	2,505,169	0
GMI — Global Markets Investments Limited	1,527,323	0
Fundo de Investimento em Participações Turquesa	1,089,453	0
Iron Fundo de Investimento em Participações	197,441	0
Certain former equityholders of Estre USA Inc. (f/k/a Boulevard Acquisition Corp II)
Boulevard Acquisition Sponsor II, LLC	5,027,258	5,851,365
Capitol Acquisition Partners, LLC	130,240	150,035

EXHIBIT

Addendum Agreement

This Addendum Agreement (“Addendum Agreement”) is executed on , 20 , by the undersigned (the “New Holder”) pursuant to the terms of that certain Registration Rights and Lock-Up Agreement dated as of December 21, 2017 (the “Agreement”), by and among the Company and the Investors identified therein, as such Agreement may be amended, supplemented or otherwise modified from time to time. Capitalized terms used but not defined in this Addendum Agreement shall have the respective meanings ascribed to such terms in the Agreement. By the execution of this Addendum Agreement, the New Holder agrees as follows:

1. Acknowledgment. New Holder acknowledges that New Holder is acquiring certain Registrable Securities (as defined in the Agreement) as a transferee of such Registrable Securities from a party in such party’s capacity as a holder of Registrable Securities under the Agreement, and after such transfer, New Holder shall be considered an “Investor” and a holder of Registrable Securities for all purposes under the Agreement.

2. Agreement. New Holder hereby (a) agrees that the Registrable Securities shall be bound by and subject to the terms of the Agreement and (b) adopts the Agreement with the same force and effect as if the New Holder were originally a party thereto.

3. Notice. Any notice required or permitted by the Agreement shall be given to New Holder at the address or facsimile number listed below New Holder’s signature below.

NEW HOLDER:				ACCEPTED AND AGREED:

Print Name:				ESTRE AMBIENTAL, INC.

By:				By:

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REGISTRATION RIGHTS AND LOCK-UP AGREEMENT

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