Exhibit 10.5

LOCK-UP AGREEMENT

THIS LOCK-UP AGREEMENT (this “Agreement”) is dated as of September 30, 2025, by and between Rosy Sea Holdings Limited, a company incorporated and existing under the laws of the British Virgin Islands (the “Holder”) and Iron Horse Acquisitions Corp., a Delaware corporation (the “Acquiror”).

A. Acquiror, Zhong Guo Liang Tou Group Limited, a company incorporated and existing under the laws of the British Virgin Islands (the “Company”), and the Holder entered Business Combination Agreement, dated as of September 27, 2024, as amended and restated on December 18, 2024, and as further amended on August 31, 2025 and September 12, 2025 (as so amended and restated, the “BCA”). Capitalized terms used, but not otherwise defined herein, shall have the meanings ascribed to such terms in the BCA..

B. The Holder is the record and/or beneficial owner of 100% of the Company Shares, which pursuant to the BCA will be exchanged for shares of Acquiror Common Stock.

C. As a condition of, and as a material inducement for Acquiror to enter into and consummate the transactions contemplated by the BCA, the Holder has agreed to execute and deliver this Agreement.

NOW, THEREFORE, for and in consideration of the mutual covenants and agreements set forth herein, and other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the parties, intending to be legally bound, agree as follows:

AGREEMENT

1. Lock-Up.

(a) Subject to Section 1(b) below, during the Lock-up Period, the Holder, for the benefit of the Acquiror, agrees that it will not offer, sell, contract to sell, pledge or otherwise dispose of, directly or indirectly, any of the Lock-up Shares (as defined below), enter into a transaction that would have the same effect, or enter into any swap, hedge or other arrangement that transfers, in whole or in part, any of the economic consequences of ownership of the Lock-up Shares or otherwise, publicly disclose the intention to make any offer, sale, pledge or disposition, or to enter into any transaction, swap, hedge or other arrangement, or engage in any Short Sales (as defined below) with respect to the Lock-up Shares.

(b) In furtherance of the foregoing, during the Lock-up Period, the Acquiror will (i) place a stop order on all the Lock-up Shares, including those which may be covered by a registration statement, and (ii) notify the Acquiror’s transfer agent in writing of the stop order and the restrictions on the Lock-up Shares under this Agreement and direct the Acquiror’s transfer agent not to process any attempts by the Holder to resell or transfer any Lock-up Shares, except in compliance with this Agreement.

(c) For purposes hereof, “Short Sales” include, without limitation, all “short sales” as defined in Rule 200 promulgated under Regulation SHO under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), and all types of direct and indirect stock pledges, forward sale contracts, options, puts, calls, swaps and similar arrangements (including on a total return basis), and sales and other transactions through non-US broker dealers or foreign regulated brokers.

(d) The term “Lock-up Period” means the date that is 180 days after the Closing Date (as defined in the BCA).

2. Beneficial Ownership. The Holder hereby represents and warrants that it does not beneficially own, directly or through its nominees (as determined in accordance with Section 13(d) of the Exchange Act, and the rules and regulations promulgated thereunder), any shares of Acquiror Common Stock, or any economic interest in or derivative of such shares, other than those shares of Acquiror Common Stock issued pursuant to the BCA. For purposes of this Agreement, the number of newly issued shares of Acquiror Common Stock issued to Holder in connection with the transactions contemplated under the BCA, and any securities convertible into, or exchangeable for, or representing the rights to receive Acquiror Common Stock, if any, acquired during the Lock-up Period , as adjusted by any stock split, stock dividend, combination or reclassification, or similar events are collectively referred to as the “Lock-up Shares.” For the purpose of clarification only, Lock-up Shares shall not include shares of Acquiror Common Stock acquired by such Holder in open market transactions during the Lock-up Period.

Notwithstanding the foregoing, and subject to the conditions below, the undersigned may transfer Lock-Up Shares in connection with (a) transfers or distributions to the Holder’s direct or indirect affiliates (within the meaning of Rule 405 under the Securities Act of 1933, as amended) or to the estates of any of the foregoing; (b) transfers by bona fide gift or gifts to a member of the Holder’s immediate family or to a trust, the beneficiary of which is the Holder or a member of the Holder’s immediate family for estate planning purposes; (c) by virtue of a will, testamentary document or the laws of descent and distribution upon death of the Holder; (d) transfers to the Acquiror’s officers, directors or their affiliates, (e) to Holder’s stockholders or members; (f) pledges of Lock-up Shares as security or collateral in connection with a borrowing or the incurrence of any indebtedness by the Holder, (g) transfers pursuant to a bona fide third-party tender offer, merger, stock sale, recapitalization, consolidation or other transaction approved by the board of directors of Acquiror; provided, however, that in the event that such tender offer, merger, recapitalization, consolidation or other such transaction is not completed, the Lock-Up Shares subject to this Agreement shall remain subject to this Agreement, (h) the establishment of a trading plan pursuant to Rule 10b5-1 promulgated under the Exchange Act; provided, however, that such plan does not provide for the transfer of Lock-up Shares during the Lock-Up Period, (i) transfers to satisfy tax withholding obligations in connection with the exercise of options to purchase shares of Acquiror Common Stock or the vesting of stock-based awards; and (j) transfers in payment on a “net exercise” or “cashless” basis of the exercise or purchase price with respect to the exercise of options to purchase shares of Acquiror Common Stock; provided, however, that, in the case of any transfer pursuant to the foregoing (a) through (e) clauses, it shall be a condition to any such transfer that the transferee/donee agrees to be bound by the terms of this Agreement (including, without limitation, the restrictions set forth in the preceding sentence) to the same extent as if the transferee/donee were a party hereto.

3. Representations and Warranties. Each of the parties hereto, by their respective execution and delivery of this Agreement, hereby represents and warrants to the other that (a) such party has the full right, capacity and authority to enter into, deliver and perform its respective obligations under this Agreement, (b) this Agreement has been duly executed and delivered by such party and is a binding and enforceable obligation of such party and, enforceable against such party in accordance with the terms of this Agreement, and (c) the execution, delivery and performance of such party’s obligations under this Agreement will not conflict with or breach the terms of any other agreement, contract, commitment or understanding to which such party is a party or to which the assets or securities of such party are bound. The Holder has independently evaluated the merits of its decision to enter into and deliver this Agreement, and such Holder confirms that it has not relied on the advice of Acquiror, Acquiror’s legal counsel, or any other person.

4. No Additional Fees/Payment. Other than the consideration specifically referenced herein, the parties hereto agree that no fee, payment or additional consideration in any form has been or will be paid to the Holder in connection with this Agreement.

5. Notices. Any notices required or permitted to be sent hereunder shall be sent in writing, and shall be given in accordance with the terms of Section 11.3 of the BCA to the applicable party at the address set forth in Section 11.3 of the BCA.

6. Enumeration and Headings. The enumeration and headings contained in this Agreement are for convenience of reference only and shall not control or affect the meaning or construction of any of the provisions of this Agreement.

7. Counterparts. This Agreement may be executed in any number of original, electronic or facsimile counterparts and each of such counterparts shall for all purposes be deemed to be an original, and all such counterparts shall together constitute but one and the same instrument. This Agreement shall become effective upon delivery to each party of an executed counterpart or the earlier delivery to each party of original, photocopied, or electronically transmitted signature pages that together (but need not individually) bear the signatures of all other parties.

8. Successors and Assigns. This Agreement and the terms, covenants, provisions and conditions hereof shall be binding upon, and shall inure to the benefit of, the respective heirs, successors and assigns of the parties hereto. The Holder hereby acknowledges and agrees that this Agreement is entered into for the benefit of and is enforceable by Acquiror and its successors and assigns. No party hereto may, except as set forth herein, assign either this Agreement or any of its rights, interests, or obligations hereunder, including by merger, consolidation, operation of law or otherwise, without the prior written consent of the other parties. Any purported assignment or delegation in violation of this paragraph shall be void and ineffectual, and shall not operate to transfer or assign any interest or title to the purported assignee.

9. Severability. This Agreement shall be deemed severable, and a determination by a court or other legal authority that any provision that is not of the essence of this Agreement is legally invalid shall not affect the validity or enforceability of this Agreement or of any other term or provision hereof. Furthermore, the parties shall cooperate in good faith to substitute (or cause such court or other legal authority to substitute) for any provision so held to be invalid a valid provision, as alike in substance to such invalid or unenforceable provision as may be possible and be valid and enforceable.

10. Entire Agreement; Amendment. This Agreement and the BCA constitute the entire agreement and understanding of the parties hereto in respect of the subject matter hereof and supersede all prior and contemporaneous understandings and agreements related hereto (whether written or oral), to the extent they relate in any way to the subject matter hereof or the transactions contemplated hereby. No provision of this Agreement may be explained or qualified by any agreement, negotiations, understanding, discussion, conduct or course of conduct or by any trade usage. Except as otherwise expressly stated herein, there is no condition precedent to the effectiveness of any provision hereof. This Agreement may not be changed, amended or modified as to any particular provision, except by a written instrument executed by all parties hereto, and cannot be terminated orally or by course of conduct. No provision hereof can be waived, except by a writing signed by the party against whom such waiver is to be enforced, and any such waiver shall apply only in the particular instance in which such waiver shall have been given.

11. Further Assurances. Each party shall do and perform, or cause to be done and performed, all such further acts and things, and shall execute and deliver all such other agreements, certificates, instruments and documents, as may reasonably be considered within the scope of such party’s obligations hereunder, in order to carry out the intent and accomplish the purposes of this Agreement and the consummation of the transactions contemplated hereby.

12. No Strict Construction. The language used in this Agreement will be deemed to be the language chosen by the parties to express their mutual intent, and no rules of strict construction will be applied against any party.

13. Dispute Resolution. Section 11.14 of the BCA is incorporated by reference herein to apply with full force to any disputes arising under this Agreement.

14. Governing Law. Section 11.7 of the BCA is incorporated by reference herein to apply with full force to any disputes arising under this Agreement.

[Signature Page Follows]

IN WITNESS WHEREOF, the parties hereto have caused this Lock-up Agreement to be duly executed by their respective authorized signatories as of the date first indicated above.

IRON HORSE ACQUISITIONS CORP.

By:	/s/ Jose Antonio Bengochea
	Name:	Jose Antonio Bengochea
	Title:	Chief Executive Officer

ROSY SEA HOLDINGS LIMITED

By:	/s/ Zhenjun Jiang
	Name:	Zhenjun Jiang
	Title:	Director

[Signature Page to Lock-up Agreement]