Company: APXT
Filing Date: 2025-08-11
Form Type: S-1
Source: 0001213900-25-074316
Chunk: 379

Company: Apex Treasury Corp
Filing Date: 2025-08-11
Form: S-1
Chunk 379
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 thday of August, 2025.

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

POWER OF ATTORNEY KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes and appoints each of Ajmal Rahman and Hugh Cochrane his or her true and lawful attorney -in-fact, with full power of substitution and resubstitution for him or her and in his or her name, place and stead, in any and all capacities to sign any and all amendments including post -effectiveamendments to this registration statement and any and all registration statements filed pursuant to Rule 462 under the Securities Act of 1933, as amended, and to file the same, with all exhibits thereto, and other documents in connection therewith, with the SEC, hereby ratifying and confirming all that said attorney -in-factor his substitute, each acting alone, may lawfully do or cause to be done by virtue thereof. 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 August11, 2025.

| 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 |

II-5

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 11 thday of August, 2025.

| APEX TREASURY CORPORATION |     |                            |
| By:                       |     | /s/ Hugh Cochrane          |
| Name:                     |     | Hugh Cochrane              |
| Title:                    |     | Co