Binding Letter of Intent dated December 22, 2023

Dear Gary:

This binding letter of intent (the “Letter”) is entered into as of December 22, 2023 (the “Effective Date”) and summarizes the principal terms of the purchase by Bright Sheet Metal Company, Inc., an Indiana corporation (“Bright” or “Buyer”), of 100% of the assets of:

1.1.Background and Purpose. Bright’s business is similar to that of the Subsidiaries. Alpine no longer wishes to be in the business conducted by the Subsidiaries. Bright has expressed interest in purchasing the assets of the Subsidiaries with the intention of continuing to perform the business for which the Subsidiaries employed its assets, and Alpine is willing to sell Subsidiaries’ assets to Bright subject to mutually agreed terms, including but not limited to Bright’s assumption of certain Liabilities of the Subsidiaries. Following the Effective Date, the parties intend to enter into a more comprehensive definitive purchase agreement and other ancillary agreements (together the “Agreements”) incorporating the material terms and conditions described in this Letter.

1.2.Definitive Agreements; Nature of Letter. Unless and until the Agreements become effective, the parties agree to be bound by all of the terms and conditions of this Letter. If the parties have not executed the Agreements by the Closing Date and if this Letter has not been terminated pursuant to Section 9 herein, then this Letter, together with such other agreements as the parties mutually execute and deliver, shall become the definitive agreement.

2.Purchase and Sale of Assets of the Subsidiaries. Subject to the satisfaction of the closing conditions set forth below, at the closing of the Transaction contemplated by this Letter and the Agreements (the “Closing”), the Seller shall sell to Bright and Bright shall purchase from the Seller 100% ownership of all assets owned by the Subsidiaries (the “Assets”). The Transaction shall be accomplished in such a way as to satisfy Bright that it has obtained all such rights to the assets owned by the Subsidiaries. To be clear, Assets do not include the Employer Identification Number (“EIN”) of any of the Subsidiaries, and any IRS filing made under such EIN and any funds received pursuant therefrom, including but not limited to any pending or future application by Seller or the Subsidiaries with the IRS for employee retention credits (“ERC”), or any funds received therefrom.

3.Due Diligence. As promptly as reasonably practical following the Effective Date, The Subsidiaries will allow Bright to conduct due diligence as provided in this Section (“Due Diligence”). At Bright’s election, Bright will engage an auditor to complete any or all of the classes of items identified on the valuation spreadsheet provided in Exhibit C.

During the period of the Audit, Bright, its representatives and the Auditors will be permitted to have discussions with all the Subsidiaries employees, contractors, agents, customers, suppliers and other third parties, including without limitation, any outside advisors of the Subsidiaries, and access to available schedule details of Assets, Assumed Liabilities, work in progress, existing leases, and Construction Contracts, and any other document that Bright believes is germane to the conduct of its Due Diligence.

4.Closing. The Closing will occur promptly upon satisfaction or waiver of all closing conditions set forth in Section 8, but not later than January 12, 2024 (the “Closing Date”). At the Closing, the Seller shall transfer, sell and assign to Bright all assets of the Subsidiaries, and Bright shall pay to the Seller cash consideration as described in Section 5.1.(a) herein, and Bright shall assume liability for payment of the Assumed Liabilities (as defined in Section 5.1(b)) (the “Closing Actions”). All Closing Actions have to be completed simultaneously and Closing will only occur when all Closing Actions are fully completed or waived.

5.1.Purchase Consideration. In consideration for the purchase of the assets of the Subsidiaries, Bright will pay the purchase consideration (the “Purchase Price”) to the Seller and assume Seller’s liabilities as follows:

(a)Cash Payment. At the Closing, Bright will pay to Seller the net-asset value as determined by performing the calculations to complete the valuation spreadsheet in Exhibit C, whose inputs have been updated by Seller to reflect their values as of the close of the previous business day (the “Closing Valuation Spreadsheet”), where such Closing Valuation Worksheet meets the Closing conditions of Section 8.1(a).

(b)Assumption of Liabilities. In addition to the cash payments set forth in Section 5.1(a) above, Bright will assume all responsibility for the payment of any then-existing liability of Morris and JDT comprising any part of the “Liabilities Grand Total” in the Closing Valuation Spreadsheet meeting the Closing conditions of Section 8.1(a),as well as the Subsidiaries’ union Unfunded Pension Liabilities, but not including Excluded Pension Remittance Liabilities (collectively the “Assumed Liabilities”).

6.Representations and Warranties. Each of the Subsidiaries and Seller make the representations and warranties to Bright that are set forth on Exhibit B attached to this Letter. Any representations and warranties of The Subsidiaries and each of the Seller made in the Agreements may be qualified by written exceptions provided in disclosures schedules delivered to Bright at Closing. Bright makes the representations and warranties to Seller that are set forth on Exhibit B attached to this Letter.

(a)Prohibition against upstreaming. During the period between the Effective Date and the Closing Date, Seller and its affiliates agrees that it not take or accept any funds transferred from the Subsidiaries other than reimbursement for employee benefits paid by Seller on behalf of the Subsidiaries non-union employees.

(b)Conduct of Business. During the period between the Effective Date and the Closing Date, Seller shall cause the Subsidiaries to conduct the Business in the ordinary course and shall notify Bright as soon as practicable of the occurrence of any Material Adverse Effect or any event which would be outside the ordinary course of the Business or could cause the terms, conditions, and representations included herein or in the

Agreements to become breached or violated. The Subsidiaries shall operate in a way consistent with past practices and will not enter into any new material agreements or materially alter any existing agreement without notification to Bright, detailing such new agreement(s) or changes.

(c)Additional Covenants. The Subsidiaries and Seller will cooperate with Bright and will use their good faith efforts to satisfy the conditions to Closing described herein and, upon satisfaction of such conditions, to consummate the Transactions contemplated hereby. From the Effective Date until the Closing Date, the Subsidiaries and the Seller will: (a) use their best efforts to protect the business of the Subsidiaries and take such actions as Bright may reasonably request relating to protection of such business, and effect no transfer, sale or Encumbrance of or on any of the Business (other than in the ordinary course of the Business); (b) engage in no transactions materially inconsistent with its representations and warranties in this Letter; (c) obtain, before the Closing, the written consent of all third parties necessary for the Subsidiaries or the Seller to consummate the Transaction; (d) notify Bright promptly upon receipt of any communication or legal process which commences or threatens litigation against the Subsidiaries; and (e) provide Bright, whether before or after the Closing, with any further documents that Bright reasonably requests relating to the Business or to carry into effect the Transaction.

(d)No Shop. From the Effective Date of this Letter until termination of this Letter or until Closing, whichever is the earlier (the “Exclusive Period”), the Subsidiaries and Seller will not, directly or indirectly, through any representative or otherwise, and will not allow any manager or officer of the Subsidiaries or Seller or any other person on its or their behalf (i) solicit, initiate, or encourage submission of any Alternate Transaction, or (ii) engage in any discussions with or furnish any information with respect to the foregoing to any person or any entity, or furnish any information to any person or entity that has made any proposal with respect to any such Alternative Transaction. In addition, The Subsidiaries and the Seller agree to immediately cease and cause to be terminated any such contacts or negotiations with third parties. The Subsidiaries and Seller shall immediately notify Bright of all inquiries related to an Alternative Transaction, including information as to the identity of the party making the proposal and the specific terms of such proposal.

(e)Indemnification. Seller and the Subsidiaries shall, jointly and severally, indemnify and hold harmless Buyer, and its representatives, shareholders, subsidiaries and affiliates (collectively, the “Buyer Indemnified Persons”), and will reimburse the Buyer Indemnified Persons for any loss, liability, claim, damage, expense (including costs of investigation and defense and reasonable attorneys’ fees and expenses) or diminution of value, (collectively, “Damages”), arising from or in connection with: (i) any breach of any representation or warranty made by Seller; (ii) any breach of any covenant or obligation of Seller, (iii) any liability arising out of the ownership or operation of the Assets prior to the Closing other than the Assumed Liabilities; (iv) any brokerage or finder’s fees or commissions or similar payments based upon any agreement or understanding made, or alleged to have been made, by any person with Seller (or any person acting on its behalf) in connection with any of the transactions contemplated herein; or (v) any Retained Liabilities.

(f)Hold Back. Seller and the Subsidiaries agree that at Closing Buyer may hold back 10% of the Purchase Price (or 15% of the Purchase Price if the Closing Date were to occur prior to January 1st, 2024) for a period of twelve (12) months following the Closing to secure the foregoing indemnification obligations, provided that Buyer will release such amounts to Seller on the 12 month anniversary of the Closing if there are no pending unresolved indemnification claims at that time.

(a)Materials provided by Bright prior to close. From the Effective Date until Closing, any materials provided to Morris or JDT by Bright to facilitate Morris’ or JDT’s completion of work for Morris’ or JDT’s customers will be charged to Morris or JDT respectively at Bright’s cost, with such cost booked by Morris or JDT on its accounts payable schedule, to be reconciled at Closing using Closing Valuation Worksheet. Upon termination of this Letter in lieu of Closing, Morris and JDT shall pay Bright for any materials provided to Morris and JDT respectively under this Section 7.23 within 30 days from this Letter’s termination.

(b)One-year Sublease of Morris’ Premises. As of the Closing, Bright will, with the real estate landlord’s written consent, enter a one year sublease (the “SubLease”) to the premises currently leased by Morris, promising to paya sublease rate of [$29,766.00] per month (Increasing In February to [$30,363.00] per month), plus payment of all other expenses required to be paid under the lease during that one year period. Seller and the Subsidiaries agree that Bright’s obligation under the Sublease terminates one year from the Closing Date, and thereafter Seller and its Subsidiaries tenants are fully responsible for any further obligations under their existing lease with the landlord. Bright also agrees to pay the landlord the rent in arrears as indicated in the Closing Valuation Spreadsheet.

(c)Non-Solicitation. From the Effective Date until termination of this Letter or until Closing, whichever is the earlier, Bright agrees not to, either alone or in association with others, solicit, divert or take away, or attempt to divert or take away, the business or patronage of any of the customers, or business partners of the Subsidiaries, nor to solicit any employee or contractor of the Company to terminate his or her employment or contractors status with the Subsidiaries.

(d)Union Shop. Buyer agrees that after the Closing Date, Buyer will employ union labor in its use of the assets acquired from the Subsidiaries, and will continue to contribute substantially the same number of contribution base units to the union National Pension Fund (the “Plan”) as the Subsidiaries contributed prior to the sale. The Subsidiaries agree that if the Buyer withdraws from contributing to the union Plan during the five Plan years following the sale, and the Buyer refuses to make withdrawal liability payments when due, the Subsidiaries will be secondarily liable to the Plan.

(e)Contract Continuance. Buyer agrees that after the Closing Date, Buyer will perform any existing contractor or subcontractor contract to which Morris and JTD is a party as indicated on backlog schedules (“Construction Contracts”) provided to Buyer prior to or during Due Diligence, and Buyer will indemnify and hold harmless Seller and the Subsidiaries, and their representatives, shareholders, subsidiaries and affiliates (collectively, the “Seller Indemnified Persons”), and will reimburse the Seller Indemnified Persons for any Damages arising from or in connection with any liability arising from the Buyer’s execution or acts or omissions under the Construction Contracts subsequent to Closing; provided that Buyer will not assume any liabilities or obligations arising from a breach by the Subsidiaries under any Construction Contract prior to the Closing date and such obligations, if any, will be “Retained Liabilities”.

(f)Bright’s forbearance under the note. If the Horizon Bank note is purchased by Bright or its affiliates prior to the time of Closing, Bright agrees that from the date of purchase of Morris’ note from Horizon Bank, until termination of this Letter or until Closing, whichever is the earlier, Bright will not sell the note, and Bright will forbear from taking any action against the note makers or any note guarantors as a result of any default under the note, and shall not charge any default fees, default interest, acceleration or any other penalties as a result of any default under the note.

(a)Due Diligence. Bright shall be satisfied with the results of its due diligence investigation in its sole discretion. Buyer shall have entered the Sublease on terms satisfactory to it.

(b)Other Items. (i) No Material Adverse Effect shall have occurred since the Effective Date in the condition of Morris or JDT shall exist at the time of the Closing; (ii) all third party consents required to transfer and assign the assets for operation by Bright after the Closing as anticipated herein, and all required approvals to transfer any permits, shall have been obtained; (iii) the Subsidiaries’ and Seller representations and warranties shall remain true and correct as if made on the Closing Date; (iv) Seller and the Subsidiaries shall have performed in all material respects all of the terms and obligations of this Letter that are required to be performed by the Subsidiaries and the Seller before the Closing; (v) no Action shall have been brought or threatened

against any party seeking to challenge or prohibit the transactions contemplated hereby or claims any rights to any of the Business or its assets; (vii) Landlord has provided their written consent for the one year Sublease; and (vii) on the Closing Date, all actions, proceedings, instruments and documents required to effect the Transaction and all other related matters shall have been completed to the reasonable satisfaction of Bright and its counsel.

8.2.Seller’s Conditions to Close. Seller’s obligation to close the Transaction is subject to satisfaction or waiver by Seller of each of the following conditions on or before the Closing Date: (i) Bright’s representations and warranties shall remain true and correct as if made on the Closing Date; (ii) Bright shall have performed in all material respects all of the terms and obligations of this Letter and the Agreement that are required to be performed by Bright before the Closing; and (iii) no Action shall have been brought or threatened against any party seeking to challenge or prohibit the transactions contemplated hereby; and (iv) on the Closing Date, all actions, proceedings, instruments and documents required to effect the Transaction and all other related matters shall have been completed to the reasonable satisfaction of the Seller.

9.Termination. This Letter may be terminated as follows: (i) by mutual written agreement of the parties; (ii) by Bright if in its sole discretion it is not satisfied with its due diligence investigation or the final Closing Valuation Spreadsheet, (iii) by either party if a Governmental Authority shall have permanently prohibited or enjoined the Transaction; and (iv) by either Bright or the Seller upon a material breach of any provision of this Letter if such breach is not cured by (if capable of cure) within 30 days of notice from the terminating parties. Except as expressly set forth in this Section 9, this Letter may not be terminated by Seller.

10.1.Attorney’s Fees. In the event of arbitration or other action relating to this Letter, if an arbitrator or court of competent jurisdiction determines that any party or any of its representatives have breached this Letter, then the breaching party shall be liable and pay to the non-breaching parties the reasonable legal fees incurred in connection therewith, including any appeal therefrom.

10.2.Governing Law; Dispute Resolution. This Letter shall be governed by and construed under the laws of the State of Indiana (excluding its choice of law rules). The parties agree that the exclusive means for resolving any dispute arising out of or relating to this Letter shall be binding arbitration to be held as provided above. The parties shall each pay one-half of the costs of the arbitrator(s).

10.3.Notices. All notices and other communications hereunder shall be in writing and shall be deemed given upon receipt if delivered personally or by email, three business days after deposit in the mails if sent by registered or certified mail (return receipt requested) or one business day if given by reputable overnight express courier (charges prepaid), to the parties at the addresses set forth for such party herein (or at such other address for a party as shall be specified by like notice.

10.4.Counterparts. This Letter may be executed by electronic signatures and will be considered and construed as valid as an original signature. This Letter may be executed in one or more counterparts, all of which shall be considered one and the same agreement, and shall become effective when one or more such counterparts have been signed by the parties and delivered.

10.5.Entire Agreement. This Letter along with the Exhibits contain the entire agreement and understanding between the parties hereto with respect to the subject matter hereof and supersede all prior agreements. No party shall be liable or bound to any other party in any manner by any representations, warranties or covenants relating to such subject matter except as specifically set forth herein.

10.6.Fees and Expenses. Unless otherwise specifically provided herein regardless of whether or not the Transactions contemplated by this Letter are consummated, each party shall bear its own fees and expenses incurred in connection with the Transactions contemplated by this Letter.

10.7.Successors and Assigns; Third Party Beneficiaries. This Letter shall be binding upon and inure solely to the benefit of the parties hereto, their successors and permitted assigns (for the avoidance of doubt Bright shall be free to assign this Letter to any of its subsidiaries or affiliates without the need for consent, but this Agreement shall not be assigned by the Subsidiaries without Bright’s prior written consent); and notwithstanding any provision of this Letter, nothing in this Letter, express or implied, is intended to or shall confer upon any other person or persons who is not a party to this Letter any right, benefits or remedies of any nature whatsoever under or by reason of this Letter.

10.8.Severability. In the event that any one or more of the provisions contained herein, or the application thereof in any circumstances, is held invalid, illegal or unenforceable in any respect for any reason, the parties shall negotiate in good faith with a view to the substitution therefore of a suitable and equitable solution in order to carry out, so far as may be valid and enforceable, the intent and purpose of such invalid provision; provided, however, that the validity, legality and enforceability of any such provision in every other respect and of the remaining provisions contained herein shall not be in any way impaired thereby, it being intended that all of the rights and privileges of the parties hereto shall be enforceable to the fullest extent permitted by law.

10.9.No Waiver. No failure or delay by a party to exercise or enforce any rights conferred on it by this Letter shall be construed or operate as a waiver thereof nor shall any single or partial exercise of any right, power or privilege or further exercise thereof operate so as to bar the exercise or enforcement thereof at any time or times.

10.10.Asset Sale is As Is/Where is. EACH OF THE CONVEYED ASSETS IS BEING CONVEYED “AS IS”, “WHERE IS”, AND “WITH ALL FAULTS” AS OF THE CLOSING, WITHOUT ANY REPRESENTATION OR WARRANTY WHATSOEVER AS TO ITS CONDITON, FITNESS FOR ANY PARTICULAR PURPOSE, MERCHANTABILITY OR ANY OTHER WARRANTY, EXPRESS OR IMPLIED

OTHER THAN AS SET FORTH IN THIS LETTER. SELLER AND THE SUBSIDIARIES SPECIFICALLY DISCLAIMS ANY WARRANTY, GUARANTY OR REPRESENTATION, ORAL OR WRITTEN, PAST OR PRESENT, THERETO EXCEPT AS OTHERWISE SET FORTH IN THIS LETTER. BUYER IS HEREBY THUS ACQUIRING THE CONVEYED ASSETS BASED SOLEY UPON BUYER’S OWN INDEPENDENT INVESTIGATIONS AND INSPECTION OF THAT PROPERTY AND NOT IN RELIANCE UPON ANY INFORMATION PROVIDED BY SELLER OR SELLER’S AGENTS OR CONTRACTORS EXCEPT AS OTHERWISE SET FORTH IN THIS LETTER.