# EDGAR Filing Document

**Accession Number:** 0001858180
**File Stem:** 0001104659-23-040228
**Filing Date:** 2023-3
**Character Count:** 11840
**Document Hash:** ea652d1c814f56f2c52eb90d3f1e93f0
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001104659-23-040228.hdr.sgml**: 20230331

**ACCESSION NUMBER**: 0001104659-23-040228

**CONFORMED SUBMISSION TYPE**: 425

**PUBLIC DOCUMENT COUNT**: 2

**FILED AS OF DATE**: 20230331

**DATE AS OF CHANGE**: 20230331

**SUBJECT COMPANY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Prime Number Acquisition I Corp.
- **CENTRAL INDEX KEY:** 0001858180
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **IRS NUMBER:** 862378484
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 425
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-41394
- **FILM NUMBER:** 23788234

**BUSINESS ADDRESS:**
- **STREET 1:** 1129 NORTHERN BLVD.
- **STREET 2:** SUITE 404
- **CITY:** MANHASSET
- **STATE:** DE
- **ZIP:** 11030
- **BUSINESS PHONE:** 852 5178989

**MAIL ADDRESS:**
- **STREET 1:** 1129 NORTHERN BLVD.
- **STREET 2:** SUITE 404
- **CITY:** MANHASSET
- **STATE:** DE
- **ZIP:** 11030
**FILED BY**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Prime Number Acquisition I Corp.
- **CENTRAL INDEX KEY:** 0001858180
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **IRS NUMBER:** 862378484
- **STATE OF INCORPORATION:** DE
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 425

**BUSINESS ADDRESS:**
- **STREET 1:** 1129 NORTHERN BLVD.
- **STREET 2:** SUITE 404
- **CITY:** MANHASSET
- **STATE:** DE
- **ZIP:** 11030
- **BUSINESS PHONE:** 852 5178989

**MAIL ADDRESS:**
- **STREET 1:** 1129 NORTHERN BLVD.
- **STREET 2:** SUITE 404
- **CITY:** MANHASSET
- **STATE:** DE
- **ZIP:** 11030

Filed by Prime Number Acquisition I Corp.

Pursuant to Rule 425 under the Securities Act of 1933

and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934

Commission File No. 001-41394

Subject Company: Prime Number Acquisition I Corp.

*Press Release*

**3DOM Alliance reports results of nail penetration short circuit resistance testing for batteries equipped with the X-SEPA™**

TOKYO, March 23, 2023 – 3DOM Alliance Inc. ("3DOM Alliance") conducted nail penetration short circuit resistance testing on batteries equipped with the X-SEPA™, a revolutionary separator technology with a multi-layer structure that further enhances durability of the company's 3DOM (3-dimensionally ordered macroporous) separator. The testing produced favorable results compared to a general-purpose separator.

A nail penetration short circuit test is one method of evaluating reliability in abnormal conditions by driving a metallic nail through a charged lithium-ion battery cell at a prescribed speed to simulate internal short-circuiting. Internal short-circuits are a leading cause of battery ignition and explosion incidents and may result from external impact, manufacturing defects, or metal deposition during charging and discharging.

To evaluate the X-SEPA™'s contribution to cell reliability, nail penetration short circuit tests were conducted on two 3.3Ah lithium-ion battery cells with identical design specifications except for the separator. Testing on the cell with a general-purpose polypropylene separator resulted in thermal runaway and venting, corresponding to EUCAR (European Council for Automotive R&D) Hazard Level 4. Testing on the cell equipped with the X-SEPA™ did not result in thermal runaway and produced no smoke or flame, corresponding to EUCAR Hazard Level 2.

![](image_001.jpg)

The effect of the X-SEPA™ on the test results was assessed by conducting a puncture test on the separators and a local heating test, in which a soldering iron heated to 450℃ was touched to the separators to reproduce the conditions of local heating generated from internal short-circuiting by the nail. In contrast to the general-purpose product, no aperture was observed in the X-SEPA™ due to the three-dimensional pore structure and heat-resistant material. This supports the favorable results of the nail penetration short circuit test.

3DOM Alliance has made preparations for mass production and began providing samples of the X-SEPA™ to battery manufacturers in February 2023. The company's subsidiary noco-noco Pte. Ltd. ("noco-noco"), a Singapore-based decarbonization solution provider, plans to provide batteries equipped with the X-SEPA™ through services that leverage resulting battery characteristics such as long lifespan, reliability, heat resistance, and high-rate discharge. Utilizing the X-SEPA™, noco-noco aims to alleviate safety concerns and other hurdles to electrification for mobility operators in order to drive decarbonization in the transport industry.

**Important Information and Where to Find It**

On December 29, 2022, Prime Number Holding Limited, an exempted company limited by shares incorporated under the laws of the Cayman Islands ("PubCo"), Prime Number Acquisition I Corp. ("PNAC"), Prime Number Merger Sub Inc., a Delaware corporation and a direct wholly-owned subsidiary of PubCo, Prime Number New Sub Pte. Ltd., a Singapore private company limited by shares and a direct wholly-owned subsidiary of PubCo, noco-noco, and certain shareholders of noco-noco collectively holding a controlling interest, entered into a business combination agreement, pursuant to which PNAC is proposing to enter into a business combination with noco-noco involving a merger and a share exchange. This press release does not contain all the information that should be considered concerning the proposed business combination and is not intended to form the basis of any investment decision or any other decision in respect of the business combination. PNAC's stockholders and other interested persons are advised to read, when available, the proxy statement/prospectus and the amendments thereto and other documents filed in connection with the proposed business combination, as these materials will contain important information about noco-noco, PNAC and the proposed business combination. When available, the proxy statement/prospectus and other relevant materials for the proposed business combination will be mailed to stockholders of PNAC as of a record date to be established for voting on the proposed business combination. Such stockholders will also be able to obtain copies of the proxy statement/prospectus and other documents filed with the Securities and Exchange Commission (the "SEC"), without charge, once available, at the SEC's website at www.sec.gov, or by directing a request to PNAC at its principal executive offices at c/o 1129 Northern Blvd, Suite 404, Manhasset, NY 11030, United States.

**Forward-Looking Statements**

This press release contains forward-looking statements within the meaning of section 27A of the U.S. Securities Act of 1933, as amended (the "Securities Act"), and section 21E of the U.S. Securities Exchange Act of 1934 ("Exchange Act") that are based on beliefs and assumptions and on information currently available to noco-noco and PNAC. In some cases, you can identify forward-looking statements by the following words: "may," "will," "could," "would," "should," "expect," "intend," "plan," "anticipate," "believe," "estimate," "predict," "project," "potential," "continue," "ongoing," "target," "seek" or the negative or plural of these words, or other similar expressions that are predictions or indicate future events or prospects, although not all forward-looking statements contain these words. Any statements that refer to expectations, projections or other characterizations of future events or circumstances, including the proposed business combination, the benefits and synergies of the proposed business combination, the markets in which noco-noco operates as well as any information concerning possible or assumed future results of operations of the combined company after the consummation of the proposed business combination, are also forward-looking statements. These statements involve risks, uncertainties and other factors that may cause actual results, levels of activity, performance or achievements to be materially different from those expressed or implied by these forward-looking statements. Although each of noco-noco and PNAC believes that it has a reasonable basis for each forward-looking statement contained in this communication, each of noco-noco and PNAC caution you that these statements are based on a combination of facts and factors currently known and projections of the future, which are inherently uncertain. Neither noco-noco nor PNAC can assure you that the forward-looking statements in this communication will prove to be accurate. These forward-looking statements are subject to a number of risks and uncertainties, including, among others, the ability to complete the business combination due to the failure to obtain approval from PNAC's stockholders or satisfy other closing conditions in the business combination agreement, the occurrence of any event that could give rise to the termination of the business combination agreement, the ability to recognize the anticipated benefits of the business combination, the amount of redemption requests made by PNAC's public stockholders, costs related to the transaction, the impact of the global COVID-19 pandemic, the risk that the transaction disrupts current plans and operations as a result of the announcement and consummation of the transaction, the outcome of any potential litigation, government or regulatory proceedings and other risks and uncertainties. There may be additional risks that neither noco-noco nor PNAC presently know or that noco-noco and PNAC currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In light of the significant uncertainties in these forward-looking statements, you should not regard these statements as a representation or warranty by noco-noco, PNAC, and their respective directors, officers or employees or any other person that noco-noco and PNAC will achieve their objectives and plans in any specified time frame, or at all. The forward-looking statements in this press release represent the views of noco-noco and PNAC as of the date of this communication. Subsequent events and developments may cause those views to change. However, while noco-noco and PNAC may update these forward-looking statements in the future, there is no current intention to do so, except to the extent required by applicable law. You should, therefore, not rely on these forward-looking statements as representing the views of noco-noco or PNAC as of any date subsequent to the date of this communication.

**No Offer or Solicitation**

This press release is not a proxy statement or solicitation of a proxy, consent or authorization with respect to any securities or in respect of the potential transaction and does not constitute an offer to sell or a solicitation of an offer to buy any securities of noco-noco or PNAC, nor shall there be any sale of any such securities in any state or jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of such state or jurisdiction. No offer of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act.

**Participants in the Solicitation**

noco-noco, PNAC, and their respective directors, executive officers, other members of management, and employees, under SEC rules, may be deemed to be participants in the solicitation of proxies of PNAC's stockholders in connection with the proposed transaction. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of PNAC's stockholders in connection with the proposed business combination will be set forth in the proxy statement/prospectus on Form F-4 to be filed with the SEC.