Company: ONCHW
Filing Date: 2025-06-20
Form Type: S-1/A
Source: 0001213900-25-056307
Chunk: 2

Company: 1RT Acquisition Corp.
Filing Date: 2025-06-20
Form: S-1/A
Chunk 2
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 2025 |
| Joe Majocha     |     | -Principal Financial and Accounting Officer |     |               |

II-2

Authorized representative 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 1RT Acquisition Corp, in the City of New York, New York, on the 20 thday of June, 2025.

| By:    |     | /s/ Dan Tapiero           |
| Name:  |     | Dan Tapiero               |
| Title: |     | Authorized Representative |

II-3