Legato Merger Corp. II (the “Company”) was incorporated in Delaware on July 14, 2021 as a blank check company whose objective is to acquire, through a merger, share exchange, asset acquisition, stock purchase, recapitalization, reorganization or other similar business combination, one or more businesses or entities (a “Business Combination”).

The Company is not limited to a particular industry or sector for purposes of consummating a Business Combination, although it has focused its search on target businesses in the infrastructure, engineering and construction, industrial and renewables industries. The Company is an early stage and emerging growth company and, as such, the Company is subject to all of the risks associated with early stage and emerging growth companies.

On May 25, 2022, the Company, Legato Merger Sub Inc., a Delaware corporation and a wholly owned subsidiary of the Company (“Merger Sub”), and Southland Holdings LLC, a Texas limited liability company (“Southland”), entered into an Agreement and Plan of Merger (the “Merger Agreement”). Pursuant to the Merger Agreement, upon the closing (“Closing”) of the transactions contemplated by the Merger Agreement (the “Transactions”), Merger Sub will merge with and into Southland (the “Merger”), with Southland being the surviving entity of the Merger (“Surviving Company”) and becoming a wholly owned subsidiary of the Company. In connection therewith, the members of Southland (“Southland Members”) will receive shares of common stock, par value $0.0001 per share, of the Company, cash and the right to receive certain contingent consideration in exchange for all the outstanding limited liability company membership interests of Southland (“Southland Membership Interests”). See Note 10 – Merger Agreement.

At December 31, 2022, the Company had not yet commenced any operations. All activity through September 30, 2022 relates to the Company’s formation, the public offering described below, the search for a target business with which to consummate a Business Combination and entering into the Merger Agreement with Southland. The registration statement for the Company’s Initial Public Offering was declared effective on November 22, 2021. On November 24, 2021, the Company consummated the offering of 24,000,000 units at $10.00 per Unit, generating gross proceeds of $240,000,000 which is described in Note 3 (“Initial Public Offering”). Simultaneously with the closing of the Initial Public Offering, the Company consummated the sale of 1,045,500 units, at a price of $10.00 per unit in a private placement (“Private Placement”) to certain holders of the Company’s founder shares (“Initial Stockholders”) and EarlyBirdCapital, Inc., the representative of the underwriters in the Initial Public Offering (“EBC”), generating gross proceeds of $10,450,000 (“Private Units”), which is described in Note 4. Transaction costs amounted to $13,680,526, consisting of $4,800,000 in underwriting fees, $8,400,000 of deferred underwriting fees and $480,526 of other offering costs. On November 29, 2021, the underwriters exercised their over-allotment option in full to purchase an additional 3,600,000 Units. As a result, on December 1, 2021, the Company sold an additional 3,600,000 Units at $10.00 per Unit for an aggregate amount of $36,000,000. In connection with the underwriters’ exercise of their over-allotment option, the Company also consummated the sale of an additional 126,000 Private Units at $10.00 per unit, generating total proceeds of $1,260,000. Transaction costs associated with the underwriters’ full exercise of their over-allotment option amounted to $15,660,526, consisting of $5,520,000 in cash underwriting fees and $9,660,000 of deferred underwriting fees.

Following the closing of the Initial Public Offering, the over-allotment and the Private Placement, $280,140,000 ($10.15 per Unit) from the net proceeds of the sale of the Units in the Initial Public Offering and the sale of the Private Units was placed in a trust account (the “Trust Account”) and will be invested in U.S. government securities, within the meaning set forth in Section 2(a)(16) of the Investment Company Act of 1940, as amended (the “Investment Company Act”), with a maturity of 185 days or less, or in any open-ended investment company that holds itself out as a money market fund selected by the Company meeting the conditions of Rule 2a-7 of the Investment Company Act, as determined by the Company, until the earlier of (i) the consummation of a Business Combination; (ii) the redemption of any shares sold in the Initial Public Offering (“Public Shares”) in connection with a stockholder vote to amend the Company’s Amended and Restated Certificate of Incorporation to modify the substance or timing of the Company’s obligation to redeem 100% of its Public Shares if it does not complete an initial Business Combination within 18 months from the closing of the Initial Public Offering (the “Combination Period”); or (iii) the distribution of the Trust Account, as described

below, except that interest earned on the Trust Account can be released to pay the Company’s tax obligations, if the Company is unable to complete an initial Business Combination within the Combination Period or upon any earlier liquidation of the Company. The Company’s management has broad discretion with respect to the specific application of the net proceeds of its Initial Public Offering and Private Units, although substantially all of the net proceeds are intended to be applied generally toward consummating a Business Combination. NASDAQ rules provide that the Company’s initial Business Combination must be with one or more target businesses that together have a fair market value equal to at least 80% of the balance in the Trust Account (less taxes payable) at the time of the signing a definitive agreement in connection with a Business Combination. The Company will only complete a Business Combination if the post-Business Combination company owns or acquires 50% or more of the outstanding voting securities of the target or otherwise acquires a controlling interest in the target sufficient for it not to be required to register as an investment company under the Investment Company Act. There is no assurance that the Company will be able to successfully effect a Business Combination.

The Company will provide its stockholders with the opportunity to redeem all or a portion of their Public Shares upon the completion of a Business Combination either (i) in connection with a stockholder meeting called to approve the Business Combination or (ii) by means of a tender offer. The decision as to whether the Company will seek stockholder approval of a Business Combination or conduct a tender offer will be made by the Company, solely in its discretion. The stockholders will be entitled to redeem their Public Shares for a pro rata portion of the amount then on deposit in the Trust Account (initially $10.15 per Public Share, plus any pro rata interest earned on the funds held in the Trust Account and not previously released to the Company to pay its tax obligations). There will be no redemption rights upon the completion of a Business Combination with respect to the Company’s warrants.

The Company will proceed with a Business Combination if the Company has net tangible assets of at least $5,000,001 either immediately prior to or upon such consummation of a Business Combination and, if the Company seeks stockholder approval, a majority of the outstanding shares voted are voted in favor of the Business Combination. If a stockholder vote is not required by law and the Company does not decide to hold a stockholder vote for business or other legal reasons, the Company will, pursuant to its Amended and Restated Certificate of Incorporation, conduct the redemptions pursuant to the tender offer rules of the U.S. Securities and Exchange Commission (“SEC”), and file tender offer documents with the SEC prior to completing a Business Combination. If, however, stockholder approval of the transaction is required by law, or the Company decides to obtain stockholder approval for business or other legal reasons, the Company will offer to redeem shares in conjunction with a proxy solicitation pursuant to the proxy rules and not pursuant to the tender offer rules. If the Company seeks stockholder approval in connection with a Business Combination, the Company’s officers, directors and initial stockholders (the “Insiders”) have agreed to vote their Founder Shares (as defined in Note 5), the shares of common stock included in the Private Units (the “Private Shares”) and any Public Shares held by them in favor of approving a Business Combination. Additionally, each public stockholder may elect to redeem their Public Shares irrespective of whether they vote for or against the proposed transaction.

The Company will also provide its stockholders with the opportunity to redeem all or a portion of their Public Shares in connection with any stockholder vote to approve an amendment to the Company’s Amended and Restated Certificate of Incorporation that would affect the substance or timing of the Company’s obligation to redeem 100% of Public Shares if it does not complete an initial Business Combination within the Combination Period. The stockholders will be entitled to redeem their shares for a pro rata portion of the amount then on deposit in the Trust Account (initially $10.15 per share, plus any pro rata interest earned on the funds held in the Trust Account, net of taxes payable). There will be no redemption rights with respect to the Company’s warrants in connection with such a stockholder vote to approve such an amendment to the Company’s Amended and Restated Certificate of Incorporation.

The Company will have until the expiration of the Combination Period to consummate its initial Business Combination. If the Company is unable to consummate a Business Combination within the Combination Period and stockholders do not otherwise extend the Combination Period by approving an amendment to the Company’s Amended and Restated Certificate of Incorporation, the Company will (i) cease all operations except for the purposes of winding up; (ii) as promptly as reasonably possible but not more than ten business days thereafter, redeem the Public Shares, at a per-share price, payable in cash, equal to the aggregate amount then on deposit in the Trust Account, including any interest earned on the Trust Account not previously released to the Company to pay its tax obligations and up to $100,000 of interest to pay dissolution expenses, divided by the number of then outstanding Public Shares, which redemption will completely extinguish public stockholders’ rights as stockholders (including the right to receive further liquidating

distributions, if any), subject to applicable law, and; (iii) as promptly as reasonably possible following such redemption, subject to the approval of the Company’s remaining stockholders and the Company’s board of directors, dissolve and liquidate, subject in the case of clauses (ii) and (iii) to the Company’s obligations under Delaware law to provide for claims of creditors and the requirements of other applicable law. There will be no redemption rights or liquidating distributions with respect to the Company’s warrants, which will expire worthless if the Company fails to complete a Business Combination within the Combination Period.

The Insiders have agreed to waive their redemption rights with respect to any Founder Shares and Private Shares, as applicable, (i) in connection with the consummation of a Business Combination, (ii) in connection with a stockholder vote to amend the Company’s Amended and Restated Certificate of Incorporation to modify the substance or timing of the Company’s obligation to allow redemption as provided in its charter, and (iii) if the Company fails to consummate a Business Combination within the Combination Period. The Insiders have also agreed to waive their redemption rights with respect to any Public Shares held by them in connection with the consummation of a Business Combination and in connection with a stockholder vote to amend the Company’s Amended and Restated Certificate of Incorporation as described above. However, the Insiders will be entitled to redemption rights with respect to Public Shares if the Company fails to consummate a Business Combination or liquidates within the Combination Period. In the event of such distribution, it is possible that the per share value of the residual assets remaining available for distribution (including Trust Account assets) will be less than the initial public offering price per Unit in the Initial Public Offering. Placing funds in the Trust Account may not protect those funds from third party claims against the Company. Although the Company will seek to have all vendors, service providers (except the Company’s independent registered public accounting firm), prospective target businesses or other entities it engages, execute agreements with the Company waiving any claim of any kind in or to any monies held in the Trust Account, there is no guarantee that such persons will execute such agreements. Crescendo Advisors, LLC, an entity affiliated with Mr. Rosenfeld, the Company’s Chief SPAC Officer, has agreed that it will be liable to ensure that the proceeds in the trust account are not reduced below $10.15 per share by the claims of target businesses or claims of vendors or other entities that are owed money by the Company for services rendered or contracted for or products sold to it. However, the Company has not independently verified whether Crescendo Advisors LLC has sufficient funds to satisfy its indemnity obligations, the Company has not asked it to reserve for such obligations, and the Company does not believe it has any significant liquid assets.