# EDGAR Filing Document

**Accession Number:** 0001602506
**File Stem:** 0001213900-25-094224
**Filing Date:** 2025-9
**Character Count:** 9541
**Document Hash:** 0d603ac05e1f0fe57d4d68019597e9e9
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-094224.hdr.sgml**: 20250930

**ACCESSION NUMBER**: 0001213900-25-094224

**CONFORMED SUBMISSION TYPE**: 3

**PUBLIC DOCUMENT COUNT**: 2

**CONFORMED PERIOD OF REPORT**: 20250930

**FILED AS OF DATE**: 20250930

**DATE AS OF CHANGE**: 20250930

**REPORTING-OWNER**: 

**OWNER DATA:**
- **COMPANY CONFORMED NAME:** Jackson Kathryn Jean
- **CENTRAL INDEX KEY:** 0001602506

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** 3
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-42883
- **FILM NUMBER:** 251362190

**MAIL ADDRESS:**
- **STREET 1:** 121 SW SALMON STREET
- **CITY:** PORTLAND
- **STATE:** OR
- **ZIP:** 97204
**ISSUER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Rice Acquisition Corp 3
- **CENTRAL INDEX KEY:** 0002074872
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**BUSINESS ADDRESS:**
- **STREET 1:** 443 WOODLAND ROAD
- **CITY:** SEWICKLEY
- **STATE:** PA
- **ZIP:** 15143
- **BUSINESS PHONE:** 412-228-1801

**MAIL ADDRESS:**
- **STREET 1:** 443 WOODLAND ROAD
- **CITY:** SEWICKLEY
- **STATE:** PA
- **ZIP:** 15143

## Ex-24

**Exhibit 24**

POWER OF ATTORNEY<br> FOR SECTION 16 REPORTING OBLIGATIONS

KNOW ALL BY THESE PRESENTS, that the undersigned hereby constitutes and appoints J. Kyle Derham and James Wilmot Rogers, or any of them signing singly and with full power of substitution, the undersigned's true and lawful attorney-in-fact to:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1) prepare, execute in the undersigned's name and on the
undersigned's behalf, and submit to the U.S. Securities and Exchange Commission (the "SEC") a Form ID, including amendments
thereto, and any other documents necessary or appropriate to obtain codes and passwords enabling the undersigned to make electronic filings
with the SEC of reports required by Section 16(a) of the Securities Exchange Act of 1934, as amended (the "Exchange Act"),
or any rule or regulation of the SEC;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2) prepare and execute for and on behalf of the undersigned Schedules
13D and 13G, Forms 3, 4 and 5, and Notices of Proposed Sale of Securities on Form 144, in each case with respect to the securities issued
by Rice Acquisition Corporation 3 or any successor thereto (the "Company"), in accordance with Sections 13 and 16(a) of the
Exchange Act and the rules thereunder and Rule 144 under the Securities Act of 1933, as applicable (the "Securities Act");

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3) do and perform any and all acts for and on behalf of the undersigned
that may be necessary or desirable to complete and execute any such Schedules 13D or 13G, Form 3, 4 or 5, or Notices of Proposed Sale
of Securities on Form 144, complete and execute any amendment or amendments thereto, and timely file such schedule or form (including
any amendment or amendments thereto), with the SEC and any stock exchange or similar authority;

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(4) seek or obtain, as the undersigned's representative
and on the undersigned's behalf, information regarding transactions in the Company's securities from any third party, including
brokers, employee benefit plan administrators and trustees, and the undersigned hereby authorizes any such person to release any such
information to the undersigned and approves and ratifies any such release of information; and

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(5) take any other action of any type whatsoever in connection
with the foregoing that, in the opinion of such attorney-in-fact, may be of benefit to, in the best interest of, or legally required
by, the undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the undersigned pursuant to
this Power of Attorney shall be in such form and shall contain such terms and conditions as such attorney-in-fact may approve in such
attorney-in-fact's discretion.

The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present, with full power of substitution or revocation, hereby ratifying and confirming all that such attorney-in-fact, or such attorney-in-fact's substitute or substitutes, shall lawfully do or cause to be done by virtue of this power of attorney and the rights and powers herein granted.

The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's responsibilities to comply with, or any liability for the failure to comply with, any provision of Sections 13 and 16 of the Exchange Act or any provision of Rule 144 under the Securities Act.

This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to file Forms 3, 4 and 5 with respect to the undersigned's holdings of, and transactions in, securities issued by the Company, unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-in-fact.

*[Signature Page Follows]*

 

IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this 30<sup>th</sup> day of September 2025.

---

| |
|:---|
| /s/ Kathryn J. Jackson |
| Kathryn J. Jackson |

---

[*Signature Page to the Power of Attorney*]

### UNITED STATES SECURITIES AND EXCHANGE COMMISSION
**Washington, D.C. 20549**

## FORM 3

### INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

---

| | | |
|:---|:---|:---|
| **1. Name and Address of Reporting Person**<sup>*</sup><br>Jackson Kathryn Jean<br><sub>(Last) (First) (Middle)</sub><br>102 EAST MAIN STREET, SECOND STORY<br><sub>(Street)</sub><br>CARNEGIE, PA 15106<br><sub>(City) (State) (Zip)</sub> | **3. Issuer Name and Ticker or Trading Symbol**<br>Rice Acquisition Corp 3 [ KRSP ] | **5. If Amendment, Date of Original Filed (Month/Day/Year)**<br>  |
| **2. Date of Event Requiring Statement (Month/Day/Year)**<br>2025-09-30 | **4. Relationship of Reporting Person(s) to Issuer**<br>(Check all applicable)<br>[X] Director   [ ] 10% Owner<br>[ ] Officer (give title below)   [ ] Other (specify below)<br>_ _ | **6. Individual or Joint/Group Filing (Check Applicable Line)**<br>[X] Form filed by One Reporting Person<br>[ ] Form filed by More than One Reporting Person |

---

## Table I - Non-Derivative Securities Beneficially Owned

---

|  |  |  |  |
| --- | --- | --- | --- |
| 1. Title of Security | 2. Amount of Securities Beneficially Owned | 3. Ownership Form | 4. Nature of Indirect Beneficial Ownership |

---

## Table II - Derivative Securities Beneficially Owned

---

|  |  |  |  |  |  |  |  |
| --- | --- | --- | --- | --- | --- | --- | --- |
| 1. Title of Derivative Security | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 2. Date Exercisable and Expiration Date (Month/Day/Year) | 3. Title and Amount of Underlying Securities | 3. Title and Amount of Underlying Securities | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| 1. Title of Derivative Security | Date Exercisable | Expiration Date | Title | Amount or Number of Shares | 4. Conversion or Exercise Price | 5. Ownership Form | 6. Nature of Indirect Beneficial Ownership |
| Class B units of Rice Acquisition Holdings 3 LLC | <sup>(1)</sup> | <sup>(1)</sup> | Class A ordinary shares | 30000 | <sup>(1)</sup> | D |  |

---

### Footnotes:

(1) For each Class B unit of Rice Acquisition Holdings 3 LLC ("Opco"), the Reporting Person owns a corresponding Class B ordinary share of the Issuer. In connection with the Issuer's initial business combination, or in certain circumstances described in the Second Amended and Restated Limited Liability Company Agreement of Opco at specified times thereafter, the Class B units of Opco will convert into Class A units of Opco on a one-for-one basis, subject to adjustment. The Class A units of Opco (together with the corresponding Class B ordinary shares of the Issuer) will be exchangeable into Class A ordinary shares of the Issuer after the time of the Issuer's initial business combination on a one-for-one basis and have no expiration date.

**Remarks:**
Exhibit List: Exhibit 24 - Power of Attorney

**Signature:** /s/ James Wilmot Rogers, as Attorney-in-Fact  
**Date:** 2025-09-30

### Remarks:

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

**Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.**