Company: APACU
Filing Date: 2025-07-07
Form Type: S-1/A
Source: 0001829126-25-004915
Chunk: 16

Company: StoneBridge Acquisition II Corp
Filing Date: 2025-07-07
Form: S-1/A
Chunk 16
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 we expect that the Class A ordinary shares and rights will be listed on Nasdaq under the symbols “APAC” and “APACR,” respectively.

We are an “emerging growth company” and a “smaller reporting company” under applicable federal securities laws and will be subject to reduced public company reporting requirements.

Investing in our securities involves a high degree of risk. See “ Risk Factors” beginning on page 45 for a discussion of information that should be considered in connection with an investment in our securities. Investors will not be entitled to protections normally afforded to investors in Rule 419 blank check offerings.

Neither the U.S. Securities and Exchange Commission nor any state securities commission has approved or disapproved of these securities or determined if this prospectus is truthful or complete. Any representation to the contrary is a criminal offense.

No offer or invitation, whether directly or indirectly, is being or may be made to the public in the Cayman Islands to subscribe for any of our securities.

|                                              |     | Per Unit |       |     | Total |            |
|:---------------------------------------------|:----|:---------|------:|:----|:------|-----------:|
| Public offering price                        |     | $        | 10.00 |     | $     | 50,000,000 |
| Underwriting discounts and commissions(1)(2) |     | $        |  0.05 |     | $     |    250,000 |
| Proceeds, before expenses, to us             |     | $        |  9.95 |     | $     | 49,750,000 |

| (1) | Does not include certain fees and expenses payable to the underwriter in connection with this offering. In addition, the underwriter or its designees will receive an aggregate of 200,000 Class A ordinary shares (or 230,000 Class A ordinary shares if the underwriter’s over-allotment option is exercised in full), which we refer to in this prospectus as the “representative shares,” as compensation in connection with this offering. See “Underwriting” for a description of compensation and other items of value payable to the underwriter. |

The underwriter is offering the units for sale on a firm commitment basis. Delivery of the units will be made on or about , 2025.

<div align='center'>Sole Book-Running Manager

Maxim Group LLC

, 2025

The date of this prospectus is , 2025