Company: ONCHW
Filing Date: 2025-06-11
Form Type: S-1
Source: 0001213900-25-053361
Chunk: 310

Company: 1RT Acquisition Corp.
Filing Date: 2025-06-11
Form: S-1
Chunk 310
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000 |   |     |   |    3,750,000 |   |
| Basic and diluted net loss per share                                      |     | $ |        (0.01 | ) |     | $ |        (0.01 | ) |

____________ (1)Excludes up to 562,500 Class B ordinary shares subject to forfeiture if the over -allotmentoption is not exercised in full or in part by the underwriters (Note 7). The accompanying notes are an integral part of the financial statements.

F-4

1RT Acquisition Corp.
STATEMENT S OF CHANGES IN SHAREHOLDER’S (DEFICIT) EQUITY For the three months ended March 31, 2025 (Unaudited)

|                                      |     |         Class B 
 Ordinary shares 
          Shares |     | Amount |     |     | Additional      
 Paid-In Capital |        |     | Accumulated 
 Deficit     |         |   |     | Shareholder’s    
 (Deficit) Equity |         |   |
|:-------------------------------------|:----|----------------:|:----|:-------|----:|:----|:----------------|-------:|:----|:------------|:--------|:--|:----|:-----------------|--------:|:--|
| Balance – January 1, 2025            |     |       4,312,500 |     | $      | 431 |     | $               | 24,569 |     | $           | (19,932 | ) |     | $                |   5,068 |   |
| Net loss                             |     |               — |     |        |   — |     |                 |      — |     |             | (31,000 | ) |     |                  | (31,000 | ) |
| Balance – March 31, 2025 (Unaudited) |     |       4,312,500 |     | $      | 431 |     | $               | 24,569 |     | $           | (50,932 | ) |     | $                | (25,932 | ) |

For the Period from December 13, 2024 (inception) through December 31, 2024

| Balance – December 13, 2024 (inception)      |     |         Class B 
 Ordinary shares 
          Shares 
               — |     | Amount |   — |     | Additional      
 Paid