# EDGAR Filing Document

**Accession Number:** 0002079253
**File Stem:** 0001213900-25-102679
**Filing Date:** 2025-10
**Character Count:** 37895
**Document Hash:** 943c69b834979719a4ae21a52cfd5069
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-25-102679.hdr.sgml**: 20251027

**ACCESSION NUMBER**: 0001213900-25-102679

**CONFORMED SUBMISSION TYPE**: S-1MEF

**PUBLIC DOCUMENT COUNT**: 17

**FILED AS OF DATE**: 20251027

**DATE AS OF CHANGE**: 20251027

**EFFECTIVENESS DATE**: 20251027

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Apex Treasury Corp
- **CENTRAL INDEX KEY:** 0002079253
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 981868169
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** S-1MEF
- **SEC ACT:** 1933 Act
- **SEC FILE NUMBER:** 333-291107
- **FILM NUMBER:** 251420731

**BUSINESS ADDRESS:**
- **STREET 1:** 2035 REGATTA DRIVE
- **CITY:** VERO BEACH
- **STATE:** FL
- **ZIP:** 32963
- **BUSINESS PHONE:** 772-588-4799

**MAIL ADDRESS:**
- **STREET 1:** 2035 REGATTA DRIVE
- **CITY:** VERO BEACH
- **STATE:** FL
- **ZIP:** 32963

**As filed with the U.S. Securities and Exchange Commission on October 27, 2025**

**Registration No. 333-** 

**UNITED STATES**

**SECURITIES AND EXCHANGE COMMISSION**

**Washington, D.C. 20549**

**FORM S-1**

**REGISTRATION STATEMENT<br> UNDER**

**THE SECURITIES ACT OF 1933**

**Apex Treasury Corporation**<br> **(Exact name of registrant as specified in its charter)**

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| | | |
|:---|:---|:---|
| **Cayman Islands** | **6770** | **N/A** |
| (State or other jurisdiction of<br> incorporation or organization) | (Primary Standard Industrial<br> Classification Code Number) | (I.R.S. Employer<br> Identification Number) |

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**2035 Regatta Drive<br> Vero Beach, Florida 32963<br> Tel: (772) 588-4799**<br> (Address, including zip code, and telephone number, including area code, of registrant's principal executive offices)

**Hugh Cochrane<br> Co-Chief Executive Officer<br> 2035 Regatta Drive<br> Vero Beach, Florida 32963<br> Tel: (772) 588-4799**<br> (Name, address, including zip code, and telephone number, including area code, of agent for service)

*Copies to:*

 

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| | | |
|:---|:---|:---|
| **Elliott Smith<br> Perkins Coie LLP<br> 1155 Avenue of the Americas<br> New York, New York 10036<br> Tel: (212) 262-6900** | **Simon Raftopoulos<br> Alexandra Low<br> Appleby (Cayman) Ltd.<br> 60 Nexus Way, 9<sup>th</sup> Floor<br> Camana Bay,<br> Grand Cayman<br> Cayman Islands<br> KY1-1104<br> Tel: (345) 949-4900** | **Stephen C. Ashley<br> Christopher Wing<br> Pillsbury Winthrop Shaw <br> Pittman LLP<br> 31 W. 52<sup>nd</sup> Street<br> New York, New York 10019<br> Tel: (212) 858-1000** |

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**Approximate date of commencement of proposed sale to the public:** As soon as practicable after the effective date of this registration statement.

If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933 check the following box. ☐

If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☒ 333-289485

If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

If this Form is a post-effective amendment filed pursuant to Rule 462(d) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐

Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company or an emerging growth company. See the definitions of "large accelerated filer," "accelerated filer," "smaller reporting company" and "emerging growth company" in Rule 12b-2 of the Exchange Act.

Large accelerated filer ☐ Accelerated filer ☐ <br> Non-accelerated filer ☒ Smaller reporting company ☒ <br> Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 7(a)(2)(B) of the Securities Act. ☐

**This registration statement shall become effective upon filing with the Securities and Exchange Commission in accordance with Rule 462(b) under the Securities Act of 1933, as amended.** 

**Explanatory Note**

This Registration Statement on Form S-1 is being filed by Apex Treasury Corporation, a Cayman Islands exempted company (the "Registrant"), pursuant to Rule 462(b) under the Securities Act of 1933, as amended (the "Act"), and General Instruction V to Form S-1. This Registration Statement relates to the Registrant's Registration Statement on Form S-1, as amended (File No. 333-289485) (the "Prior Registration Statement"), initially filed by the Registrant on August 11, 2025, as amended on October 1, 2025 and October 7, 2025, which became effective pursuant to Section 8(a) of the Act and the rules and regulations promulgated thereunder.

This Registration Statement covers the registration of an additional 5,750,000 of the Registrant's units, each consisting of one ordinary share and one-half of one redeemable warrant, including 4,500,000 units that may be purchased by the underwriters to cover over-allotments, if any.

The required opinions of counsel and related consents and accountant's consent are attached hereto and filed herewith. Pursuant to Rule 462(b), the contents of the Prior Registration Statement, including the exhibits thereto, are incorporated by reference into this Registration Statement.

**CERTIFICATION**

The Registrant hereby certifies to the Securities and Exchange Commission that (1) it has instructed its bank to pay the filing fee set forth on Exhibit 107 to this Registration Statement by a wire transfer of such amount to the Commission's account at U.S. Bank as soon as practicable (but no later than the close of business as of October 28, 2025), (2) it will not revoke such instructions, (3) it has sufficient funds in the relevant account to cover the amount of such filing fee and (4) it will confirm receipt of such instructions by its bank during regular business hours no later than October 28, 2025.

**PART II**

**INFORMATION NOT REQUIRED IN PROSPECTUS**

**ITEM 16. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.**

All exhibits filed with or incorporated by reference in Registration Statement No. 333-289485 are incorporated by reference into, and shall be deemed to be part of, this Registration Statement, except for the following, which are filed herewith:

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| | |
|:---|:---|
| **Exhibit No.** | **Description** |
| 5.1 | [Opinion of Perkins Coie LLP.](ea026265501ex5-1_apex.htm) |
| 5.2 | [Opinion of Appleby (Cayman) Ltd., Cayman Islands counsel to the Registrant.](ea026265501ex5-2_apex.htm) |
| 23.1 | [Consent of WithumSmith+Brown, PC.](ea026265501ex23-1_apex.htm) |
| 23.2 | [Consent of Perkins Coie LLP (included in Exhibit 5.1).](ea026265501ex5-1_apex.htm) |
| 23.3 | [Consent of Appleby (Cayman) Ltd. (included in Exhibit 5.2).](ea026265501ex5-2_apex.htm) |
| 107 | [Filing Fee Table.](ea026265501ex-fee_apex.htm) |

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**SIGNATURES**

Pursuant to the requirements of the Securities Act of 1933, as amended, the registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in Vero Beach, Florida, on the 27<sup>th</sup> day of October, 2025.

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| | |
|:---|:---|
| **APEX TREASURY CORPORATION** | **APEX TREASURY CORPORATION** |
| By: | /s/ Hugh Cochrane |
| Name: | Hugh Cochrane |
| Title: | Co-Chief Executive Officer |

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Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities indicated on October 27, 2025.

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| | |
|:---|:---|
| **Name** | **Position** |
| /s/ Ajmal Rahman | Co-Chief Executive Officer and Chairman |
| Ajmal Rahman | (Co-Principal Executive Officer) |
| /s/ Hugh Cochrane | Co-Chief Executive Officer and Director |
| Hugh Cochrane | (Co-Principal Executive Officer) |
| /s/ Paul Sykes | Chief Financial Officer |
| Paul Sykes | (Principal Financial Officer and Principal Accounting Officer) |

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**AUTHORIZED REPRESENTATIVE IN THE UNITED STATES**

Pursuant to the requirements of Section 6(a) of the Securities Act of 1933, the undersigned has signed this registration statement, solely in its capacity as the duly authorized representative of Apex Treasury Corporation in Vero Beach, Florida, on the 27<sup>th</sup> day of October, 2025.

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| | |
|:---|:---|
| **APEX TREASURY CORPORATION** | **APEX TREASURY CORPORATION** |
| By: | /s/ Hugh Cochrane |
| Name: | Hugh Cochrane |
| Title: | Co-Chief Executive Officer |

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## Exhibit 5.1

**Exhibit 5.1**

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| | | |
|:---|:---|:---|
| ![](ex5-1_001.jpg) | Perkins Coie LLP<br> 1155 Avenue of the Americas<br> 22nd Floor<br> New York, NY 10036-2711 | T. +1.212.262.6900<br> F. +1.212.977.1649 <br> perkinscoie.com |

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October 27, 2025

Apex Treasury Corporation

2035 Regatta Drive

Vero Beach, Florida 32963

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| | |
|:---|:---|
| **Re:** | **Registration Statement on Form S-1** |

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Ladies and Gentlemen:

We have acted as special counsel to Apex Treasury Corporation, a Cayman Islands exempted company (the "<u>Company</u>"), in connection with the initial public offering by the Company of a registration statement on Form S-1 (the "<u>462(b) Registration Statement</u>") for the purpose of registering with the Securities and Exchange Commission (the "<u>Commission</u>") pursuant to Rule 462(b) under the Securities Act of 1933, as amended (the "<u>Securities Act</u>") and the rules and regulations promulgated thereunder (the "<u>Rules</u>"), the sale by the Company of up to an additional 5,750,000 units of the Company (the "<u>Units</u>") (including up to 4,500,000 Units subject to an over-allotment option), each Unit consisting of one Class A ordinary share of the Company, par value $0.0001 per share ("<u>Class A Ordinary Shares</u>"), and one-half of one redeemable warrant of the Company (each whole warrant, a "<u>Warrant</u>"), each Warrant exercisable to purchase one Class A Ordinary Share. The Units, and the Class A Ordinary Shares and Warrants, in each case, included as part of the Units, are collectively referred to herein as the "<u>Securities</u>." The 462(b) Registration Statement relates to the Company's registration statement on Form S-1 (File No. 333-289485), initially filed by the Company with the Commission on August 11, 2025 (as amended, the "<u>Registration Statement</u>", and the related prospectus contained therein, the "<u>Prospectus</u>"), which became effective pursuant to Section 8(a) of the Securities Act and the Rules.

In our capacity as counsel to the Company, we have examined or are otherwise familiar with (a) the form of the Company's Amended and Restated Memorandum and Articles of Association (the "<u>New Charter</u>"); (b) the Registration Statement; (c) the Prospectus; (d) the form of Underwriting Agreement proposed to be entered into between the Company and Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC (the "<u>Underwriting Agreement</u>"); (e) the form of warrant agreement (the "<u>Warrant Agreement</u>") proposed to be entered into by the Company and Lucky Lucko, Inc. d/b/a Efficiency ("<u>Efficiency</u>"); (f) the form of Unit certificate (together with the Warrant Agreement, the "<u>Transaction Documents</u>"); (g) such of the corporate proceedings with respect to the issuance and sale of the Securities as have occurred prior to or as of the date hereof; and (h) such other documents, records and instruments as we have deemed necessary for the purposes of this opinion. In such examination, we have assumed the following without investigation: (i) the authenticity of original documents and the genuineness of all signatures; (ii) the conformity to the originals of all documents submitted to us as copies and (iii) the truth, accuracy and completeness of the information, representations and warranties contained in the records, documents, instruments and certificates we have reviewed. We have also assumed that the Company (1) is duly incorporated and is validly existing and in good standing under the laws of the jurisdiction of its organization; (2) has complied and will comply with all aspects of the laws of the jurisdiction of its organization in connection with the transactions contemplated by, and the performance of its obligations under, the Transaction Documents, including the issuance and sale of the Units and Warrants; (3) has the corporate power and authority to execute, deliver and perform all its obligations under the Transaction Documents, including the issuance and sale of the Units and Warrants; and (4) has duly authorized the execution, delivery and performance of all its obligations under the Transaction Documents, including the issuance and sale of the Units and Warrants, by all necessary corporate action of the Company.

Based on the foregoing and subject to the additional exclusions and qualifications set forth below, we are of the opinion that:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;1. When the 462(b) Registration Statement becomes effective under the Securities Act and the Units are duly issued, delivered and paid for as contemplated in the Registration Statement and 462(b) Registration Statement and in accordance with the terms of the Underwriting Agreement, and assuming the due authorization, execution and delivery thereof by Efficiency, as transfer agent, the Units will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;2. When the 462(b) Registration Statement becomes effective under the Securities Act and the Units are duly issued, delivered and paid for as contemplated in the Registration Statement and 462(b) Registration Statement and in accordance with the terms of the Underwriting Agreement, the Warrants included in the Units will constitute valid and binding obligations of the Company, enforceable against the Company in accordance with their terms.

The foregoing opinions are subject to the following exclusions and qualifications:

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (a) Our opinions are as of the date hereof and we have no responsibility to update this opinion for events and circumstances occurring after the date hereof or as to facts relating to prior events that are subsequently brought to our attention. This opinion is limited to the laws, including the rules and regulations, as in effect on the date hereof, and we disavow any undertaking to advise you of any changes in law.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (b) We express no opinion as to enforceability of any right or obligation to the extent such right or obligation is subject to and limited by (i) the effect of bankruptcy, insolvency, reorganization, receivership, conservatorship, arrangement, moratorium, fraudulent transfer or other laws affecting or relating to the rights of creditors generally; (ii) rules governing the availability of specific performance, injunctive relief or other equitable remedies and general principles of equity, regardless of whether arising prior to or after the date hereof or considered in a proceeding in equity or at law; or (iii) the effect of federal and state securities laws and principles of public policy on the rights of indemnity and contribution.

&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (c) We do not express any opinions herein concerning any laws other than the laws in their current forms of the State of New York, and we express no opinion with respect to the laws of any other jurisdiction and expressly disclaim responsibility for advising you as to the effect, if any, that the laws of any other jurisdiction may have on the opinions set forth herein.

We hereby consent to the filing of this opinion as Exhibit 5.1 to the 462(b) Registration Statement and any amendment thereto, including any and all post-effective amendments, and any registration statement relating to the same offering that is to be effective upon filing pursuant to Rule 462(b) under the Securities Act, and to the reference to our firm in the prospectus of the Registration Statement and 462(b) Registration Statement under the heading "Legal Matters." In giving such consent, we do not thereby concede that we are in the category of persons whose consent is required under Section 7 of the Securities Act or the related rules and regulations of the Securities and Exchange Commission thereunder.

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| |
|:---|
| Very truly yours, |
| /s/ Perkins Coie LLP |
| PERKINS COIE LLP |

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## Exhibit 5.2

**Exhibit 5.2**

![](ex5-2_001.jpg)

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| | |
|:---|:---|
| **Apex Treasury Corporation** | Alexandra Low |
| 71 Fort Street | alow@applebyglobal.com |
| PO Box 500 | +1-345-922-2276 |
| George Town |  |
| Grand Cayman KY1-1106 |  |
| Cayman Islands |  |
|  | 27 October, 2025 |
| **Apex Treasury Corporation** |  |

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| | |
|:---|:---|
| Cayman Office<br>Appleby (Cayman) Ltd.<br> 9<sup>th</sup> Floor, 60 Nexus Way <br> Camana Bay <br> PO Box 190 | We have acted as counsel as to Cayman Islands law to **Apex Treasury Corporation** (the "**Company**") in connection with the Company's registration statement on Form S-1, including all amendments or supplements thereto, filed with the United States Securities and Exchange Commission (the "**Commission**") under the United States Securities Act of 1933, as amended (the "**Act**") (including its exhibits, the "**Registration Statement**") for the purposes of, registering with the Commission under the Act, the offering and sale to the public of: |
| Grand Cayman KY1-1104 <br> Cayman Islands<br> Tel +1 345 949 4900<br> applebyglobal.com (a) | 30,000,000 units (or up to 34,500,000 units, if the underwriters option to purchase additional units is exercised in full which the several underwriters for whom Cohen & Company Capital Markets, a division of Cohen & Company Securities, LLC is acting as representative ("**Representative**"), will have a 45-day option to purchase from the Company to cover over-allotments, if any) ("**Units**") at an offering price of US$10.00 per Unit, each Unit consisting of: |
| (i) | one Class A ordinary share of a par value of US$0.0001 of the Company ("**Class A Ordinary Shares**"); and |
| (ii) | one-half of one redeemable warrant ("**Warrants**"); |
| (b) | all Class A Ordinary Shares and Warrants issued as part of the Units; and |
| (c) | all Class A Ordinary Shares that may be issued upon exercise of the Warrants included in the Units. |
|  | This opinion letter is given in accordance with the terms of the Legal Matters section of the Registration Statement. |
| Appleby (Cayman) Ltd. (the Legal Practice) is a company limited by shares incorporated in the Cayman Islands and approved and recognised under the Legal Practitioners (Incorporated Practice) Regulations 2006 (as amended). "Partner" is a title referring to a director, shareholder or an employee of the Legal Practice. A list of such persons can be obtained from your relationship partner. |  |

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Bermuda ■ British Virgin Islands ■ Cayman Islands ■ Guernsey ■ Hong Kong ■ Isle of Man ■ Jersey ■ Mauritius ■ Seychelles ■ Shanghai

![](ex5-2_001.jpg)

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| | |
|:---|:---|
| 1. | **Documents Reviewed** |
| We have reviewed originals, copies, drafts or conformed copies of the following documents: | We have reviewed originals, copies, drafts or conformed copies of the following documents: |
| 1.1 | The certificate of incorporation dated 26 June 2025 and the memorandum and articles of association of the Company as registered or adopted on 26 June 2025 (the "**Memorandum and Articles**"). |
| 1.2 | The written resolutions of the board of directors of the Company dated 30 June 2025, 28 July 2025 and resolutions to be adopted at the time the Registration Statement becomes effective (together, the "**Resolutions**") and the corporate records of the Company maintained at its registered office in the Cayman Islands. |
| 1.3 | A certificate of good standing with respect to the Company issued by the Registrar of Companies (the "**Certificate of Good Standing**"). |
| 1.4 | The Registration Statement. |
| 1.5 | A draft of the form of the unit certificate representing the Units (the "**Unit Certificate**"). |
| 1.6 | A draft of the form of the warrant agreement and the warrant certificate constituting the Warrants. |
| 1.7 | A draft of the underwriting agreement between the Company and the Representative. |
| The documents listed in paragraphs 1.6 to 1.7 inclusive above shall be referred to collectively herein as the "**Documents**". | The documents listed in paragraphs 1.6 to 1.7 inclusive above shall be referred to collectively herein as the "**Documents**". |
| 2 | **Assumptions** |
| The following opinions are given only as to, and based on, circumstances and matters of fact existing and known to us on the date of this opinion letter. These opinions only relate to the laws of the Cayman Islands which are in force on the date of this opinion letter. In giving the following opinions, we have relied (without further verification) upon the completeness and accuracy, as at the date of this opinion letter, of the Certificate of Good Standing. We have also relied upon the following assumptions, which we have not independently verified: | The following opinions are given only as to, and based on, circumstances and matters of fact existing and known to us on the date of this opinion letter. These opinions only relate to the laws of the Cayman Islands which are in force on the date of this opinion letter. In giving the following opinions, we have relied (without further verification) upon the completeness and accuracy, as at the date of this opinion letter, of the Certificate of Good Standing. We have also relied upon the following assumptions, which we have not independently verified: |
| 2.1 | The choice of laws of the State of New York as the governing law of the Documents has been made in good faith and would be regarded as a valid and binding selection which will be upheld by the courts of the State of New York and any other relevant jurisdiction (other than the Cayman Islands) as a matter of the State of New York and all other relevant laws (other than the laws of the Cayman Islands). |

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Bermuda ■ British Virgin Islands ■ Cayman Islands ■ Guernsey ■ Hong Kong ■ Isle of Man ■ Jersey ■ Mauritius ■ Seychelles ■ Shanghai

![](ex5-2_001.jpg)

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| | |
|:---|:---|
| 2.2 | Copies of documents, conformed copies or drafts of documents provided to us are true and complete copies of, or in the final forms of, the originals. |
| 2.3 | All signatures, initials and seals are genuine. |
| 2.4 | No invitation has been or will be made by or on behalf of the Company to the public in the Cayman Islands to subscribe for any of the Units, the Warrants or the Class A Ordinary Shares. |
| 2.5 | There is no contractual or other prohibition or restriction (other than as arising under Cayman Islands law) binding on the Company prohibiting or restricting it from entering into and performing its obligations under the Documents. |
| 2.6 | No monies paid to or for the account of any party under the Documents or any property received or disposed of by any party to the Documents in each case in connection with the Documents or the consummation of the transactions contemplated thereby represent or will represent proceeds of criminal conduct or criminal property or terrorist property (as defined in the Proceeds of Crime Act (As Revised) and the Terrorism Act (As Revised), respectively). |
| 2.7 | There is nothing under any law (other than the laws of the Cayman Islands) which would or might affect the opinions set out below. Specifically, we have made no independent investigation of the laws of New York. |
| 2.8 | The Company will receive money or money's worth in consideration for the issue of the Class A Ordinary Shares and none of the Class A Ordinary Shares will be issued for less than par value. |
| Save as aforesaid we have not been instructed to undertake and have not undertaken any further enquiry or due diligence in relation to the transaction the subject of this opinion letter. | Save as aforesaid we have not been instructed to undertake and have not undertaken any further enquiry or due diligence in relation to the transaction the subject of this opinion letter. |
| 3 | **OPINIONS** |
| Based upon, and subject to, the foregoing assumptions and the qualifications set out below, and having regard to such legal considerations as we deem relevant, we are of the opinion that: | Based upon, and subject to, the foregoing assumptions and the qualifications set out below, and having regard to such legal considerations as we deem relevant, we are of the opinion that: |
| 3.1 | The Company has been duly incorporated as an exempted company with limited liability and is validly existing and in good standing with the Registrar of Companies under the laws of the Cayman Islands. |
| 3.2 | The Class A Ordinary Shares (included in the Units and the Class A Ordinary Shares underlying the Warrants included in the Units) to be offered and issued by the Company as contemplated by the Registration Statement have been duly authorised for issue, and when issued by the Company against payment in full of the consideration as set out in the Registration Statement and in accordance with the terms set out in the Registration Statement, such Class A Ordinary Shares (included in the Units and the Class A Ordinary Shares underlying the Warrants included in the Units) will be validly issued, fully paid and non-assessable. As a matter of Cayman Islands law, a share is only issued when it has been entered in the register of members (shareholders). |

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Bermuda ■ British Virgin Islands ■ Cayman Islands ■ Guernsey ■ Hong Kong ■ Isle of Man ■ Jersey ■ Mauritius ■ Seychelles ■ Shanghai

![](ex5-2_001.jpg)

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| | |
|:---|:---|
| 3.3 | The execution, delivery and performance of the Unit Certificate and the Documents have been authorised by and on behalf of the Company and, once the Unit Certificate and the Documents have been executed and delivered by any director or officer of the Company, the Unit Certificate and the Documents will be duly executed and delivered on behalf of the Company and will constitute the legal, valid and binding obligations of the Company enforceable in accordance with their terms. |
| 4 | **QUALIFICATIONS** |
| The opinions expressed above are subject to the following qualifications: | The opinions expressed above are subject to the following qualifications: |
| 4.1 | The obligations assumed by the Company under the Documents will not necessarily be enforceable in all circumstances in accordance with their terms. In particular: |
| (a) | enforcement may be limited by bankruptcy, insolvency, liquidation, reorganisation, readjustment of debts or moratorium or other laws of general application relating to protecting or affecting the rights of creditors; |
| (b) | enforcement may be limited by general principles of equity. For example, equitable remedies such as specific performance may not be available, inter alia, where damages are considered to be an adequate remedy; |
| (c) | where obligations are to be performed in a jurisdiction outside the Cayman Islands, they may not be enforceable in the Cayman Islands to the extent that performance would be illegal under the laws of that jurisdiction; and |
| (d) | some claims may become barred under relevant statutes of limitation or may be or become subject to defences of set off, counterclaim, estoppel and similar defences. |
| 4.2 | To maintain the Company in good standing with the Registrar of Companies under the laws of the Cayman Islands, annual filing fees must be paid and returns made to the Registrar of Companies within the time frame prescribed by law. |
| 4.3 | Under Cayman Islands law, the register of members (shareholders) is prima facie evidence of title to shares and this register would not record a third party interest in such shares. However, there are certain limited circumstances where an application may be made to a Cayman Islands court for a determination on whether the register of members reflects the correct legal position. Further, the Cayman Islands court has the power to order that the register of members maintained by a company should be rectified where it considers that the register of members does not reflect the correct legal position. As far as we are aware, such applications are rarely made in the Cayman Islands and for the purposes of the opinion given in paragraph 3.2, there are no circumstances or matters of fact known to us on the date of this opinion letter which would properly form the basis for an application for an order for rectification of the register of members of the Company, but if such an application were made in respect of the Class A Ordinary Shares, then the validity of such shares may be subject to re-examination by a Cayman Islands court. |
| 4.4 | In this opinion letter the phrase "non-assessable" means, with respect to the issuance of shares, that a shareholder shall not, in respect of the relevant shares and in the absence of a contractual arrangement, or an obligation pursuant to the Memorandum and Articles, to the contrary, have any obligation to make further contributions to the Company's assets (except in exceptional circumstances, such as involving fraud, the establishment of an agency relationship or an illegal or improper purpose or other circumstances in which a court may be prepared to pierce or lift the corporate veil). |

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Bermuda ■ British Virgin Islands ■ Cayman Islands ■ Guernsey ■ Hong Kong ■ Isle of Man ■ Jersey ■ Mauritius ■ Seychelles ■ Shanghai

![](ex5-2_001.jpg)

We hereby consent to the filing of this opinion letter as an exhibit to the Registration Statement and to the references to our firm under the headings "Legal Matters", "Risk Factors", "Shareholders' Suits" and "Enforcement of Civil Liabilities" in the prospectus included in the Registration Statement. In providing our consent, we do not thereby admit that we are in the category of persons whose consent is required under section 7 of the Act or the Rules and Regulations of the Commission thereunder.

We offer no opinion: (i) as to any laws other than the laws of the Cayman Islands, and we have not, for the purposes of this opinion, made any investigation of the laws of any other jurisdiction, and we express no opinion as to the enforceability, meaning, validity, or effect of references in the Documents to statutes, rules, regulations, codes or judicial authority of any jurisdiction other than the Cayman Islands; or (ii) except to the extent that this opinion expressly provides otherwise, as to the commercial terms of, or the validity, enforceability or effect of the documents reviewed (or as to how the commercial terms of such documents reflect the intentions of the parties), the accuracy of representations, the fulfilment of warranties or conditions, the occurrence of events of default or terminating events or the existence of any conflicts or inconsistencies among the documents and any other agreements into which the Company may have entered or any other documents.

The opinions in this opinion letter are strictly limited to the matters contained in the opinions section above and do not extend to any other matters. We have not been asked to review and we therefore have not reviewed any of the ancillary documents relating to the Documents and express no opinion or observation upon the terms of any such document.

This opinion letter is addressed to you and may be relied upon by you, your counsel and purchasers of Units pursuant to the Registration Statement. This opinion letter is limited to the matters detailed herein and is not to be read as an opinion with respect to any other matter.

Yours faithfully

/s/ Appleby (Cayman) Ltd.

**Appleby (Cayman) Ltd.**

Bermuda ■ British Virgin Islands ■ Cayman Islands ■ Guernsey ■ Hong Kong ■ Isle of Man ■ Jersey ■ Mauritius ■ Seychelles ■ Shanghai

## Exhibit 23.1

**Exhibit 23.1**

**CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM**

We hereby consent to the incorporation by reference in this Registration Statement on Form S-1 pursuant to Rule 462(b) under the Securities Act of 1933, as amended, of our report dated August 11, 2025 (which includes an explanatory paragraph relating to Apex Treasury Corporation's ability to continue as a going concern), relating to the financial statements of Apex Treasury Corporation as of June 30, 2025, and for the period from June 26, 2025 (inception) to June 30, 2025, appearing in the Registration Statement on Form S-1, File No. 333-289485.

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| |
|:---|
| /s/ WithumSmith+Brown, PC |
| New York, New York |
| October 27, 2025 |

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## Ex-Filing

?xml version='1.0' encoding='ASCII'? Filing Fee Exhibit

**Ex-Filing Fees**

**CALCULATION OF FILING FEE TABLES**

**S-1**

**Apex Treasury Corporation**

**Table 1: Newly Registered and Carry Forward Securities**

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| | | | | | | | | | |
|:---|:---|:---|:---|:---|:---|:---|:---|:---|:---|
| **Line Item Type** | **Security Type** | **Security Class Title** | **Notes** | **Fee Calculation<br> Rule** | **Amount Registered** | **Proposed Maximum Offering<br> Price Per Unit** | **Maximum Aggregate Offering Price** | **Fee Rate** | **Amount of Registration Fee** |
| *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* | *Newly Registered Securities* |
| Fees to be Paid | Equity | Units, each consisting of one Class A ordinary share, $0.0001 par value, and one-half of one redeemable warrant | (1) | 457(o) | 5750000 | $10.00 | $57500000.00 | 0.0001381 | $7940.75 |
| Fees to be Paid | Equity | Class A ordinary shares included as part of the units | (2) | Other | 5750000 | 0.00 | 0.00 | 0.0001381 | 0.00 |
| Fees to be Paid | Equity | Redeemable warrants included as part of the units | (3) | Other | 2875000 | 0.00 | 0.00 | 0.0001381 | 0.00 |
| Fees to be Paid | Equity | Class A ordinary shares underlying the redeemable warrants included as part of the units | (4) | 457(o) | 2875000 | $11.50 | $33062500.00 | 0.0001381 | $4565.93 |
| Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | Total Offering Amounts: | $90562500.00 |  | 12506.68 |
| Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: | Total Fees Previously Paid: |  |  | 0.00 |
| Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: | Total Fee Offsets: |  |  | 0.00 |
| Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: | Net Fee Due: |  |  | $12506.68 |

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**__________________________________________ Offering Note(s)**

&nbsp;&nbsp;&nbsp;&nbsp;(1) Estimated solely for the purpose of calculating the registration fee. Represents only the additional number of securities being registered. Does not include securities that the Registrant previously registered on Form S-1 (File No. 333-289485). Includes 4,500,000 units, consisting of 4,500,000 Class A ordinary shares and 2,250,000 redeemable warrants, which may be issued upon exercise of a 45-day option granted to the underwriters to cover over-allotments, if any.

&nbsp;&nbsp;&nbsp;&nbsp;(2) Estimated solely for the purpose of calculating the registration fee. Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), there are also being registered an indeterminable number of additional securities as may be offered or issued to prevent dilution resulting from share subdivisions, stock dividends, or similar transactions. No fee pursuant to Rule 457(g) under the Securities Act.

&nbsp;&nbsp;&nbsp;&nbsp;(3) Estimated solely for the purpose of calculating the registration fee. Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), there are also being registered an indeterminable number of additional securities as may be offered or issued to prevent dilution resulting from share subdivisions, stock dividends, or similar transactions. No fee pursuant to Rule 457(g) under the Securities Act.

&nbsp;&nbsp;&nbsp;&nbsp;(4) Estimated solely for the purpose of calculating the registration fee. Pursuant to Rule 416(a) under the Securities Act of 1933, as amended (the "Securities Act"), there are also being registered an indeterminable number of additional securities as may be offered or issued to prevent dilution resulting from share subdivisions, stock dividends, or similar transactions.