# EDGAR Filing Document

**Accession Number:** 0002026514
**File Stem:** 0001213900-25-053442
**Filing Date:** 2025-6
**Character Count:** 16211
**Document Hash:** 24ba626123a2018cb7d257bda7462112
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-053442.hdr.sgml**: 20250611

**ACCESSION NUMBER**: 0001213900-25-053442

**CONFORMED SUBMISSION TYPE**: SCHEDULE 13D

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20250611

**DATE AS OF CHANGE**: 20250611

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Namib Minerals
- **CENTRAL INDEX KEY:** 0002026514
- **STANDARD INDUSTRIAL CLASSIFICATION:** GOLD & SILVER ORES [1040]
- **ORGANIZATION NAME:** 01 Energy & Transportation
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 005-95074
- **FILM NUMBER:** 251040056

**BUSINESS ADDRESS:**
- **STREET 1:** 71 FORT STREET
- **STREET 2:** P.O. BOX 500
- **CITY:** GEORGE TOWN
- **STATE:** E9
- **ZIP:** KY1-1106
- **BUSINESS PHONE:** 44-7584-329254

**MAIL ADDRESS:**
- **STREET 1:** 71 FORT STREET
- **STREET 2:** P.O. BOX 500
- **CITY:** GEORGE TOWN
- **STATE:** E9
- **ZIP:** KY1-1106

**FORMER COMPANY:**
- **FORMER CONFORMED NAME:** Greenstone Ltd.
- **DATE OF NAME CHANGE:** 20240610
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Sikwila Tulani
- **CENTRAL INDEX KEY:** 0002067360

**ORGANIZATION NAME:**

**FILING VALUES:**
- **FORM TYPE:** SCHEDULE 13D

**MAIL ADDRESS:**
- **ADDRESS IS A NON US LOCATION:** YES
- **STREET 1:** 71 FORT STREET
- **STREET 2:** #500
- **CITY:** GRAND CAYMAN
- **PROVINCE COUNTRY:** E9
- **ZIP:** KY1-11061

## Ex-99.A

**EXHIBIT A**

**SCHEDULE 13D JOINT FILING AGREEMENT**

In accordance with the requirements of Rule 13d-1(k) under the Securities Exchange Act of 1934, as amended, and subject to the limitations set forth therein, the parties set forth below agree to jointly file the Schedule 13D to which this Joint Filing Agreement is attached and have duly executed this Joint Filing Agreement as of the date set forth below.

Dated: June 11, 2025

---

| | |
|:---|:---|
| /s/ Tulani Sikwila | /s/ Tulani Sikwila |
| Tulani Sikwila | Tulani Sikwila |
| **Nostroheritage foundation** | **Nostroheritage foundation** |
| By: | /s/ Tulani Sikwila |
| Name: | Tulani Sikwila |
| Title: | Protector |

---

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

## SCHEDULE 13D

### Under the Securities Exchange Act of 1934

**Namib Minerals**

*(Name of Issuer)*

**Ordinary Shares, par value $0.0001 per share**

*(Title of Class of Securities)*

**G63638103**

*(CUSIP Number)*

**Tulani Sikwila**<br>BMW Plaza, 9th Floor, 50 Street<br>Panama City R1 0816-00744<br>011-507-301-6600

*(Name, Address and Telephone Number of Person Authorized to Receive Notices and Communications)*

**06/05/2025**

*(Date of Event Which Requires Filing of this Statement)*

| **CUSIP No.** | **G63638103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**Tulani Sikwila** | Name of reporting person<br>**Tulani Sikwila** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**T3** | Citizenship or place of organization<br>**T3** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**4838126.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**4387334.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4838126.00** | Aggregate amount beneficially owned by each reporting person<br>**4838126.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**9.0%** | Percent of class represented by amount in Row (11)<br>**9.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**IN** | Type of Reporting Person (See Instructions)<br>**IN** | |

---

| **CUSIP No.** | **G63638103** |

---

| | | | |
|:--|:--|:--|:--|
| 1 | Name of reporting person<br>**NostroHeritage Foundation** | Name of reporting person<br>**NostroHeritage Foundation** | |
| 2 | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | Check the appropriate box if a member of a Group (See Instructions)<br>[x] (a)<br>[ ] (b) | |
| 3 | SEC use only | SEC use only | |
| 4 | Source of funds (See Instructions)<br>**OO** | Source of funds (See Instructions)<br>**OO** | |
| 5 | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | Check if disclosure of legal proceedings is required pursuant to Items 2(d) or 2(e)<br>[ ] | |
| 6 | Citizenship or place of organization<br>**R1** | Citizenship or place of organization<br>**R1** | |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 7 | Sole Voting Power<br>**4838126.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 8 | Shared Voting Power<br>**0.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 9 | Sole Dispositive Power<br>**4838126.00** |
| Number of Shares<br>Beneficially Owned by<br>Each Reporting Person With: | 10 | Shared Dispositive Power<br>**0.00** |
| 11 | Aggregate amount beneficially owned by each reporting person<br>**4838126.00** | Aggregate amount beneficially owned by each reporting person<br>**4838126.00** | |
| 12 | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | Check if the aggregate amount in Row (11) excludes certain shares (See Instructions)<br>[ ] | |
| 13 | Percent of class represented by amount in Row (11)<br>**9.0%** | Percent of class represented by amount in Row (11)<br>**9.0%** | |
| 14 | Type of Reporting Person (See Instructions)<br>**OO** | Type of Reporting Person (See Instructions)<br>**OO** | |

---

**Comment for Reporting Person:** (1)  Consists of 4,838,126 Ordinary Shares held directly by NostroHeritage Foundation.  Tulani Sikwila, as the protector of the NostroHeritage Foundation, exercises voting and investment control over the securities held by the NostroHeritage Foundation.

**Item 1. Security and Issuer**

**(a) Title of Class of Securities:**
Ordinary Shares, par value $0.0001 per share

**(b) Name of Issuer:**
Namib Minerals

**(c) Address of Issuer's Principal Executive Offices:**
71 Fort Street, P.O. Box 500, Grand Cayman, E9, KY1-1106

This Statement on Schedule 13D (this "Statement") relates to the ordinary shares, par value $0.0001 per share (the "Ordinary Shares"), of Namib Minerals, an exempted company limited by shares incorporated under the laws of the Cayman Islands (the "Issuer"). The principal executive offices of the Issuer are located at 71 Fort Street, PO Box 500, Grand Cayman, Cayman Islands, KY1-1106.

**Item 4. Purpose of Transaction**

Business Combination

On June 17, 2024, the Issuer, Red Rock Acquisition Corporation, a Delaware corporation formerly known as Hennessy Capital Investment Corp. VI, Midas SPAC Merger Sub Inc., a Delaware corporation, Cayman Merger Sub Ltd., an exempted company limited by shares incorporated under the laws of the Cayman ("Company Merger Sub"), and Greenstone Corporation, an exempted company limited by shares incorporated under the laws of the Cayman Islands ("Greenstone"), entered into a Business Combination Agreement (the "Business Combination Agreement").

On June 5, 2025 (the "Closing Date"), the transactions (collectively, the "Business Combination") contemplated by the Business Combination Agreement were consummated (the "Closing").  As a result of the Business Combination, among other things, Company Merger Sub merged (the "Company Merger") with and into Greenstone with Greenstone being the surviving entity of the Company Merger and becoming a wholly-owned subsidiary of the Issuer and NostroHeritage received 4,838,126 Ordinary Shares and the right to receive 2.97 million of additional Ordinary Shares in contingent consideration, subject to the achievement of certain operational milestones of the Issuer over an eight-year period after the Closing Date, in exchange for its equity interests in Greenstone.

After consummation of the Business Combination, the board of directors and management of the Issuer was comprised of the following individuals: (1) Tulani Sikwila, Chief Financial Officer and Director; (2) Ibrahima Tall, Chief Executive Officer and Director; (3) Siphesihle Mchunu, General Counsel and Director; (4) Molly P. Zhang (aka Peifang Zhang), Director; (5) Dennis A. Johnson, Director; and (6) Tito Botelho Martins Junior, Director.  In connection with Closing, the board of directors of the Issuer, consisting of Messrs. Sikwila, Tall and Mchunu, appointed Ms. Zhang and Messrs. Johnson and Martins as directors.

In connection with Closing, the Issuer adopted the Second Amended and Restated Memorandum and Articles of Association.

Registration Rights and Lock-up Agreement

In connection with Closing, NostroHeritage entered into a Registration Rights and Lock-up Agreement (the "Registration Rights Agreement") with the Issuer and certain other shareholders of the Issuer (collectively with NostroHeritage, the "Holders") pursuant to which, among other things, the Issuer granted the Holders customary demand and piggyback registration rights.  In addition, certain of the Holders, including NostroHeritage, agreed not to transfer for a period of 12 months after the Closing Date any equity in the Issuer acquired by such person in connection with the Business Combination, including the 4,838,126 Ordinary Shares the Reporting Persons received as a result of the Business Combination (such equity, "Lock-up Shares"), subject to exceptions, provided that (x) 50% of the Lock-up Shares will be released on such date on which the last reported sale price of the Ordinary Shares equals or exceeds $12.50 per Ordinary Share (as adjusted for share splits, share combinations, share dividends, reorganizations, recapitalizations and the like) for any 20 trading days within a 30-trading day period commencing at least 150 days after the Closing Date; and (y) the other 50% of the Lock-up Shares will be released on the date on which the last reported sale price of the Ordinary Shares equals or exceeds $15.00 per Ordinary Share (as adjusted for share splits, share combinations, share dividends, reorganizations, recapitalizations and the like) for any 20 trading days within a 30-trading day period commencing at least 150 days after the Closing Date.

General

The Reporting Persons acquired the securities described in this Statement in connection with the Closing and intend to review their investments in the Issuer on a continuing basis. Any actions the Reporting Persons might undertake may be made at any time and from time to time without prior notice and will be dependent upon the Reporting Persons' review of numerous factors, including, but not limited to: an ongoing evaluation of the Issuer's business, financial condition, operations and prospects; price levels of the Issuer's securities; general market, industry and economic conditions; the relative attractiveness of alternative business and investment opportunities; and other future developments.

Subject to the Registration Rights Agreement, the Reporting Persons may acquire additional securities of the Issuer, or retain or sell or otherwise dispose of all or a portion of the securities then held, in the open market or in privately negotiated transactions or otherwise. In addition, the Reporting Persons may engage in discussions with management, the board of directors, and shareholders of the Issuer and other relevant parties or encourage, cause or seek to cause the Issuer or such persons to consider or explore extraordinary corporate transactions, such as: a merger, reorganization or other transaction that could result in the de-listing or de-registration of the Ordinary Shares; sales or acquisitions of assets or businesses; changes to the capitalization or dividend policy of the Issuer; or other material changes to the Issuer's business or corporate structure, including changes in management or the composition of the board of directors of the Issuer. The Reporting Persons have no current intent to propose any such transaction or other action, and there can be no assurance that any such transaction or other action, if proposed, would be successfully implemented.

Other than as described above, the Reporting Persons do not currently have any plans or proposals that relate to, or would result in, any of the matters listed in Items 4(a)-(j) of Schedule 13D, although, depending on the factors discussed herein, the Reporting Persons may change their purpose or formulate different plans or proposals with respect thereto at any time.

**Item 5. Interest in Securities of the Issuer**

**(a)**
The Reporting Persons beneficially own 4,838,126 Ordinary Shares representing 9.0% of such Ordinary Shares.  Such Ordinary Shares are held of record by NostroHeritage, and Mr. Sikwila is deemed a beneficial owner. The Reporting Persons have power to vote or direct the vote, and sole power to dispose or direct the disposition, of 4,838,126 Ordinary Shares.

**(b)**
The Reporting Persons beneficially own 4,838,126 Ordinary Shares representing 9.0% of such Ordinary Shares.  Such Ordinary Shares are held of record by NostroHeritage, and Mr. Sikwila is deemed a beneficial owner. The Reporting Persons have power to vote or direct the vote, and sole power to dispose or direct the disposition, of 4,838,126 Ordinary Shares.

**(c)**
The information set forth in Item 4 of Statement is incorporated by reference herein.  Except as described in Item 4 of this Statement, the Reporting Persons have not engaged in any transactions in the Ordinary Shares in the past sixty days.

**Item 6. Contracts, Arrangements, Understandings or Relationships With Respect to Securities of the Issuer.**

Item 4 of this Statement summarizes certain provisions of the Business Combination Agreement and the Registration Rights Agreement and is incorporated herein by reference.  A copy of each of these agreements is attached as an exhibit to this Statement and is incorporated herein by reference.

Except as set forth herein, the Reporting Persons do not have any contracts, arrangements, understandings or relationships (legal or otherwise) with any person with respect to any securities of the Issuer, including but not limited to any contracts, arrangements, understandings or relationships concerning the transfer or voting of such securities, finder's fees, joint ventures, loan or option arrangements, puts or calls, guarantees of profits, division of profits or losses, or the giving or withholding of proxies.

### SIGNATURE

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** Tulani Sikwila

**Signature:** /s/ Tulani Sikwila

**Name/Title:** Tulani Sikwila

**Date:** 06/11/2025

After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.

**Reporting Person:** NostroHeritage Foundation

**Signature:** /s/ Tulani Sikwila

**Name/Title:** Tulani Sikwila/Protector

**Date:** 06/11/2025