SEC Filing Document

Company: ERock, Inc.
Ticker: 
CIK: 2110029
Filing Type: S-1
Document Type: EX-3.1
Date Filed: 2026-05-15
Accession Number: 0001193125-26-227199
Exchange: 
SIC Code: 3620
SIC Description: Electrical Industrial Apparatus
URL: https://www.sec.gov/Archives/edgar/data/2110029/000119312526227199/d12401dex31.htm

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Exhibit 3.1

AMENDED AND RESTATED CERTIFICATE OF INCORPORATION

ERock, Inc.

(a Delaware corporation)

ERock, Inc., organized and existing under the laws of the State of Delaware, DOES HEREBY CERTIFY AS FOLLOWS:

1. The name of the corporation is ERock, Inc.

2. The original certificate of incorporation was filed with the Secretary of State of the State of Delaware on January 20, 2026 under the
name “Enchanted Rock, Inc.”

3. The original certificate of incorporation was amended on March 17, 2026 to change the
name of the corporation to “ERock, Inc.”

4. This Amended and Restated Certificate of Incorporation (as the same may be
amended and/or restated from time to time, the “Certificate of Incorporation”), which restates, integrates and amends the certificate of incorporation of the corporation as heretofore in effect, has been adopted by the corporation
in accordance with Sections 242 and 245 of the General Corporation Law of the State of Delaware (as the same exists or may hereafter be amended from time to time, the “DGCL”) and has been adopted by the consent of the stockholders
of the corporation in accordance with Section 228 of the DGCL.

5. The text of the certificate of incorporation of the corporation is
hereby amended and restated to read in its entirety as follows:

ARTICLE I

NAME

The name of the
corporation is ERock, Inc. (the “Corporation”).

ARTICLE II

AGENT

The address of the
Corporation’s registered office in the State of Delaware is 1209 Orange Street, Wilmington, New Castle County, Delaware 19801. The name of its registered agent at such address is The Corporation Trust Company.

ARTICLE III

PURPOSE

The purpose of the Corporation is to engage in any lawful act or activity for which corporations may be organized under the DGCL.

ARTICLE IV

STOCK

Section 4.1
Authorized Stock. The total number of shares that the Corporation shall have authority to issue is       shares, which shall be divided into three classes, consisting of
shares of Class A Common Stock, par value $0.01 per share (the “Class A Common Stock”),       shares of Class B Common
Stock, par value $0.01 per share (the “Class B Common Stock” and together with the Class A Common Stock, the “Common Stock”), and shares of preferred stock, par value $0.01 per share (the
“Preferred Stock”).

Section 4.2 Common Stock.

(a) Voting Rights. Except as otherwise expressly provided herein or as required by the DGCL, the holders of shares of Class A
Common Stock and Class B Common Stock shall vote together as one class on all matters (including the election of directors) submitted to a vote of the stockholders of the Corporation. Except as otherwise expressly provided herein or required by
the DGCL, each holder of shares of Class A Common Stock shall be entitled to one vote for each share of Class A Common Stock held of record by such holder on all matters on which stockholders generally are entitled to vote and each holder
of shares of Class B Common Stock shall be entitled to one vote for each share of Class B Common Stock held of record by such holder on all matters on which stockholders generally are entitled to vote; provided, however,
that, except as otherwise required by law, holders of Common Stock, as such, shall not be entitled to vote on any amendment to this Certificate of Incorporation, including any certificate of designations relating to any series of Preferred Stock
(each hereinafter referred to as a “Preferred Stock Designation”), that relates solely to the terms of one or more outstanding series of Preferred Stock if the holders of such affected series are entitled, either separately or
together with the holders of one or more other such series, to vote thereon pursuant to this Certificate of Incorporation (including any Preferred Stock Designation) or the DGCL. The holders of shares of Common Stock shall not have cumulative voting
rights.

(b) Dividends. Subject to the rights of the holders of any outstanding series of Preferred Stock, the holders of shares of
Class A Common Stock shall be entitled to receive any dividends to the extent permitted by law when, as and if declared by the board of directors of the Corporation (the “Board of Directors”). Except as otherwise provided
under this Certificate of Incorporation, dividends shall not be declared or paid in respect of any shares of Class B Common Stock.

(c) Liquidation. Upon the dissolution, liquidation or winding up of the Corporation, subject to the rights of the holders of any
outstanding series of Preferred Stock, the holders of shares of Class A Common Stock shall be entitled to receive the assets of the Corporation available for distribution to its stockholders ratably in proportion to the number of shares held by
them. Holders of shares of Class B Common Stock, as such, shall not be entitled to receive any assets upon the dissolution, liquidation or winding up of the Corporation.

Section 4.3 Preferred Stock. The Preferred Stock may be issued from time to time
in one or more series. Subject to limitations prescribed by law and the provisions of this Article IV (including any Preferred Stock Designation), the Board of Directors is hereby authorized to provide by resolution for, and to cause the filing of,
a Preferred Stock Designation for the issuance of the shares of Preferred Stock in one or more series, and to establish from time to time the number of shares to be included in each such series, and to fix the designations, powers (including voting
powers, full, limited or no voting powers), preferences and relative, participating, optional or other rights, if any, and the qualifications, limitations or restrictions, if any, of the shares of each such series.

Section 4.4 No Class Vote on Changes in Authorized Number of Shares of Stock. Subject to the rights of the
holders of any outstanding series of Preferred Stock, the number of authorized shares of Class A Common Stock, Class B Common Stock or Preferred Stock may be increased or decreased (but not below the number of shares thereof then
outstanding) without a separate class vote of the holders of Class A Common Stock, Class B Common Stock or Preferred Stock, respectively, irrespective of the provisions of Section 242(b)(2) of the DGCL.

Section 4.5 No Redemption; Cancellation. The Common Stock is not redeemable. For each Class B Unit (as defined below)
exchanged by the Class B Unit Holder (as defined below) for a share of Class A Common Stock (or, at the Corporation’s election in its sole discretion, payment of the cash equivalent in respect thereof) on and subject to the terms and
conditions contemplated by the Amended and Restated Limited Liability Company Agreement of Enchanted Rock Holdings, LLC (as the same may be amended, modified, supplemented and/or restated from time to time, the “LLC Agreement”),
one share of Class B Common Stock held by such Class B Unit Holder shall automatically and without further action on the part of the Corporation or any Class B Unit Holder be transferred to the Corporation for no consideration and
shall be retired and restored to the status of an authorized but unissued share of Class B Common Stock of the Corporation.

Section 4.6 No Preemptive, Subscription or Conversion Rights. No holder of shares of Common Stock, solely by virtue of such
holder’s status as such, shall be entitled to preemptive, subscription or conversion rights.

Section 4.7 Exchange.

(a) Enchanted Rock Holdings, LLC (“ER Holdings”) has issued units designated as “Class A Units” (each, a
“Class A Unit”) and “Class B Units” (each, a “Class B Unit”) pursuant to the terms and subject to the conditions of the LLC Agreement. Each holder of
Class B Units (including, for the avoidance of doubt, any permitted transferee of a Class B Unit in accordance with the terms of the LLC Agreement) is referred to herein as a “Class B Unit Holder.”

(b) Pursuant to and subject to the terms of the LLC Agreement, each Class B Unit Holder has the right to surrender a Class B
Unit to ER Holdings, together with the surrender of one share of Class B Common Stock held by such Class B Unit Holder to the Corporation, in exchange for the issuance of one fully paid and nonassessable share of Class A Common Stock
(or, at the Corporation’s election in its sole discretion, payment of the cash equivalent in respect thereof) on and subject to the terms and conditions set forth herein, including Section 4.5 above, and in the LLC Agreement.