# EDGAR Filing Document

**Accession Number:** 0001834032
**File Stem:** 0001213900-26-044140
**Filing Date:** 2026-4
**Character Count:** 44763
**Document Hash:** f99edcf47d9e1fb095e7d5f11cbe0ba5
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0001213900-26-044140.hdr.sgml**: 20260415

**ACCESSION NUMBER**: 0001213900-26-044140

**CONFORMED SUBMISSION TYPE**: 8-K

**PUBLIC DOCUMENT COUNT**: 20

**CONFORMED PERIOD OF REPORT**: 20260415

**ITEM INFORMATION**: Regulation FD Disclosure

**ITEM INFORMATION**: Financial Statements and Exhibits

**FILED AS OF DATE**: 20260415

**DATE AS OF CHANGE**: 20260415

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Constellation Acquisition Corp I
- **CENTRAL INDEX KEY:** 0001834032
- **STANDARD INDUSTRIAL CLASSIFICATION:** BLANK CHECKS [6770]
- **ORGANIZATION NAME:** 05 Real Estate & Construction
- **EIN:** 000000000
- **STATE OF INCORPORATION:** E9
- **FISCAL YEAR END:** 1231

**FILING VALUES:**
- **FORM TYPE:** 8-K
- **SEC ACT:** 1934 Act
- **SEC FILE NUMBER:** 001-39945
- **FILM NUMBER:** 26864894

**BUSINESS ADDRESS:**
- **STREET 1:** 1290 AVENUE OF THE AMERICAS
- **STREET 2:** 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10104
- **BUSINESS PHONE:** 212-983-1602

**MAIL ADDRESS:**
- **STREET 1:** 1290 AVENUE OF THE AMERICAS
- **STREET 2:** 10TH FLOOR
- **CITY:** NEW YORK
- **STATE:** NY
- **ZIP:** 10104

?xml version='1.0' encoding='ASCII'?

**UNITED STATES SECURITIES AND EXCHANGE COMMISSION** Washington, D.C. 20549

**FORM 8-K**

**CURRENT REPORT Pursuant to Section 13 OR 15(d) of the Securities Exchange Act of 1934**

Date of Report (Date of earliest event reported): **April 15, 2026**

**CONSTELLATION ACQUISITION CORP I** (Exact name of registrant as specified in its charter)

---

| | | |
|:---|:---|:---|
| **Cayman Islands** | **001-39945** | **98-1574835** |
| (State or other jurisdiction <br> of incorporation) | (Commission File Number) | (I.R.S. Employer <br> Identification No.) |

---

---

| | |
|:---|:---|
| **1290 Avenue of the Americas**<br> **10th Floor**<br> **New York, NY** | **10104** |
| (Address of principal executive offices) | (Zip Code) |

---

**(212) 983-1602** (Registrant's telephone number, including area code)

**Not Applicable** (Former name or former address, if changed since last report)

Check the appropriate box below if the Form 8-K is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

☒ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

☐ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

☐ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

☐ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

**Securities registered pursuant to Section 12(b) of the Act:**

---

| | | |
|:---|:---|:---|
| **Title of each class** | **Trading Symbol(s)** | **Name of each exchange on which registered** |
| Class A ordinary shares, par value $0.0001 per share | CSTAF | OTCID Basic Market |
| Redeemable warrants, each whole warrant exercisable for one Class A ordinary share at an exercise price of $11.50 | CSTWF | OTCID Basic Market |
| Units, each consisting of one Class A ordinary share and one-third of one redeemable warrant | CSTUF | OTCID Basic Market |

---

Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).

Emerging growth company ☒

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

**Item 7.01. Regulation FD Disclosure.**

On April 15, 2026, Constellation Acquisition Corp. I ("CSTA") and HiTech Minerals Inc. ("HiTech") issued a joint press release announcing an update to their previously scheduled investor webinar to discuss the proposed business combination between CSTA, HiTech and US Elemental Inc. ("PubCo") (the "Business Combination") and anticipated listing of PubCo on Nasdaq (the "Investor Webinar"). The Investor Webinar will now be held on Wednesday, April 22, 2026 at 10AM Eastern Time. The joint press release is furnished hereto as Exhibit 99.1 and incorporated by reference into this Item 7.01.

Furnished as Exhibit 99.2 hereto and incorporated into this Item 7.01 by reference is a form of notice that was shared with the investment community by Alliance Advisors, investor relations advisor to PubCo, on April 15, 2026.

In connection with the announcement described above, PubCo also made a social media post on LinkedIn, a copy of which is furnished as Exhibit 99.3 here and incorporated into this Item 7.01 by reference.

The information in this Item 7.01, including Exhibits 99.1, 99.2 and 99.3, are furnished and shall not be deemed "filed" for purposes of Section 18 of the Exchange Act of 1934, as amended (the "Exchange Act"), or otherwise subject to liabilities under that section, and shall not be deemed to be incorporated by reference into any filings under the Securities Act of 1933, as amended (the "Securities Act") or the Exchange Act, regardless of any general incorporation language in such filings. This Current Report will not be deemed an admission as to the materiality of any information of the information in this Item 7.01.

**Cautionary Note Regarding Forward Looking Statements**

Certain statements included in this Current Report are not historical facts but are forward-looking statements, including for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements generally are accompanied by words such as "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect," "should," "would," "plan," "project," "forecast," "predict," "potential," "seem," "seek," "future," "outlook," "target," and similar expressions that predict or indicate future events or trends or that are not statements of historical matters, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements include, but are not limited to (1) statements regarding estimates and forecasts of financial, performance and operational metrics, projections of market opportunity, anticipated size of the lithium resources, expected support from Jindalee Lithium Limited ("Jindalee"), expected NPV or post-tax IRR, and planned production per year; (2) references with respect to the anticipated benefits of the Business Combination and the projected future financial and operational performance of PubCo following the Business Combination, which may be affected by, among other things, competition, the ability of PubCo to grow and manage growth profitably, maintain relationships and retain its management and key employees; (3) the sources and uses of cash of the Business Combination; (4) the anticipated capitalization and enterprise value of PubCo following the consummation of the Business Combination; (5) statements regarding PubCo's operations following the Business Combination; (6) the amount of redemption requests made by CSTA's public shareholders; (7) current and future potential commercial relationships; (8) plans, intentions or future operations of PubCo or HiTech, including relating to the finalization, completion of any studies, feasibility studies or other assessments or relating to attainment, retention or renewal of any assessments, permits, licenses or other governmental notices or approvals, or the commencement or continuation of any construction or operations of plants or facilities; (9) the ability of PubCo or CSTA to issue equity or equity-linked securities in the future or raise additional capital in a PIPE financing; (10) the outcome of any legal proceedings that may be instituted against Contracting Parties (as defined below); (11) changes to the proposed structure of the Business Combination that may be required or appropriate as a result of applicable laws or regulations; (12) the ability to meet stock exchange listing standards following the Business Combination; (13) the risk that the Business Combination disrupts current plans and operations of CSTA, PubCo or HiTech; (14) the availability of federal, state or local government support, and risks related to extensive regulation, compliance obligations and rigorous enforcement by federal, state, and non-U.S. governmental authorities; and (15) expectations related to the terms and timing of the Business Combination and the ability of the parties to successfully consummate the Business Combination. These statements are based on various assumptions, whether or not identified in the Current Report, and on the current expectations of the Contracting Parties' management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by any investor as, a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. Many actual events and circumstances are beyond the control of the Contracting Parties. These forward-looking statements are subject to a number of risks and uncertainties, as set forth in the slide entitled "Risk Factors" in the investor presentation published on the date hereof and those set forth in the section entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements and Risk Factor Summary" in CSTA's Annual Report on Form 10-K for the year ended December 31, 2025 (the "Annual Report"), and in those other documents that CSTA has filed, or that PubCo and CSTA will file, with the Securities and Exchange Commission ("SEC"). If any of these risks materialize or our assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. The risks and uncertainties above are not exhaustive, and there may be additional risks that none of the Contracting Parties presently know or that they currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward looking statements reflect relevant Contracting Parties' expectations, plans or forecasts of future events and views as of the date of the Current Report. Each of the Contracting Parties anticipate that subsequent events and developments will cause those assessments to change. However, while the Contracting Parties may elect to update these forward-looking statements at some point in the future, each of the Contracting Parties specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as representing any of the Contracting Parties' assessments as of any date subsequent to the date of the Current Report. Accordingly, undue reliance should not be placed upon the forward-looking statements.

**Additional Information And Where To Find It**

In connection with the Business Combination, CSTA, Jindalee, PubCo and HiTech (together, the "Contracting Parties") are expected to prepare the Proxy/Registration Statement on Form S-4 (the "Registration Statement") to be filed with the SEC by PubCo and CSTA, which will include preliminary and definitive proxy statements to be distributed to CSTA's shareholders in connection with CSTA's solicitation for proxies for the vote by CSTA's shareholders in connection with the Business Combination and other matters as described in the Registration Statement, as well as the prospectus relating to the offer of the securities of PubCo or CSTA in connection with the completion of the Business Combination. After the Registration Statement has been filed and declared effective, CSTA will mail a definitive proxy statement and other relevant documents to its shareholders as of the record date to be established for voting on the Business Combination. CSTA's shareholders and other interested persons are advised to read, once available, the preliminary proxy statement/prospectus and any amendments thereto, and the definitive proxy statement/prospectus, in connection with CSTA's solicitation of proxies for its extraordinary general meeting of shareholders to be held to approve, among other things, the Business Combination, because these documents will contain important information about the Contracting Parties and the Business Combination. Shareholders may also obtain a copy of the preliminary or definitive proxy statement, once available, as well as other documents filed with the SEC regarding the Business Combination and other documents filed with the SEC by CSTA and PubCo, without charge, at the SEC's website located at www.sec.gov or by directing a request to Constellation Acquisition Corp I, 1290 Avenue of the Americas, New York, NY 10104.

This Current Report is not a substitute for the Registration Statement or for any other document that CSTA and/or PubCo may file with the SEC in connection with the Business Combination.

**INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE DOCUMENTS FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION. INVESTMENT IN ANY SECURITIES DESCRIBED HEREIN HAS NOT BEEN APPROVED OR DISAPPROVED BY THE SEC OR ANY OTHER REGULATORY AUTHORITY NOR HAS ANY AUTHORITY PASSED UPON OR ENDORSED THE MERITS OF THE OFFERING OR THE ACCURACY OR ADEQUACY OF THE INFORMATION CONTAINED HEREIN. ANY REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.**

**Participants in the Solicitation**

CSTA, Jindalee and PubCo and their respective directors and executive officers, under SEC rules, may be deemed to be participants in the solicitation of proxies of CSTA's shareholders in connection with the Business Combination. Investors and security holders may obtain more detailed information regarding CSTA's directors and executive officers in CSTA's filings with the SEC, including the Annual Report and the other documents filed by CSTA with the SEC from time to time. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of proxies to CSTA's shareholders in connection with the Business Combination, including a description of their direct and indirect interests, which may, in some cases, be different than those of CSTA's shareholders generally, will be set forth in the Registration Statement. Shareholders, potential investors and other interested persons should read the Registration Statement carefully when it becomes available before making any voting or investment decisions. Free copies of any documents described in the foregoing may be obtained as described under "Additional Information And Where To Find It."

**No Offer and Non-Solicitation**

This Current Report does not constitute (i) a solicitation of a proxy, consent or authorization with respect to any securities or in respect of the Business Combination or (ii) an offer to sell, or a solicitation of an offer to buy, or a recommendation to purchase, any securities in any jurisdiction, or the solicitation of any vote, consent or approval in any jurisdiction in connection with the Business Combination or any related transactions, nor shall there be any sale, issuance or transfer of any securities in any jurisdiction where, or to any person to whom, such offer, solicitation or sale may be unlawful under the laws of such jurisdiction. This Current Report does not constitute either advice or a recommendation regarding any securities. No offering of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act or an exemption therefrom.

**Item 9.01 Financial Statements and Exhibits.**

**(d) Exhibits**

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| | |
|:---|:---|
| **Exhibit<br> Number** | **Description** |
| 99.1 | [Joint Press Release regarding Investor Webinar, dated as of April 15, 2026, issued by HiTech and CSTA.](ea028651701ex99-1.htm) |
| 99.2 | [Form of notice to investment community.](ea028651701ex99-2.htm) |
| 99.3 | [LinkedIn social media post.](ea028651701ex99-3.htm) |
| 104 | Cover Page Interactive Data File (embedded within the Inline XBRL document). |

---

**SIGNATURES**

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

---

| | | |
|:---|:---|:---|
|  | **CONSTELLATION ACQUISITION CORP I** | **CONSTELLATION ACQUISITION CORP I** |
| Date: April 15, 2026 | By: | /s/ Chandra R. Patel |
|  | Name: | Chandra R. Patel |
|  | Title: | Chief Executive Officer |

---

## Exhibit 99.1

**Exhibit 99.1**

---

| | | | | |
|:---|:---|:---|:---|:---|
| ![](ea028651701_ex99-1img1.jpg) | INVESTOR RESOURCES | PROJECTS | NEWS & MEDIA | EVENTS |

---

**US Elemental Updates**

**Investor Webinar to**

**Wednesday, April 22, 2026**

**at 10AM ET**

**Webinar to Discuss Proposed Business Combination with Constellation Acquisition Corp. I and Anticipated Nasdaq Listing**

NEW YORK, April 15, 2026 (GLOBE NEWSWIRE) - HiTech Minerals Inc. ("HiTech Minerals"), a wholly owned subsidiary of Jindalee Lithium Limited ("Jindalee") (ASX: JLL), a public company listed in Australia, and Constellation Acquisition Corp. I ("Constellation") (OTCPK: CSTAF), a special purpose acquisition company sponsored by affiliates of Antarctica Capital, LLC ("Antarctica"), today announced that their previously scheduled investor webinar will now be held on Wednesday, April 22, 2026 at 10AM Eastern Time.

During the webinar, management of HiTech Minerals and Constellation will provide an overview of the proposed business combination, the anticipated Nasdaq listing of the combined company, US Elemental Inc. ("US Elemental" or the "Company"), under the ticker symbol ULIT, and plans to advance the McDermitt Lithium Project, which is expected to be one of the largest lithium resources in the United States. The webinar will include a live Q&A session.

**Investors may register in advance at the following link: <u>Webinar Registration - Zoom</u>**

**WEBINAR INFORMATION**

● **Date:** Wednesday, April 22, 2026

● **Time:** 10:00 AM Eastern Time

● **Format:** Live webcast with Q&A

**ABOUT US ELEMENTAL**

Upon the closing of the business combination, US Elemental will hold the U.S. lithium assets currently owned by HiTech Minerals. US Elemental Inc. will be a U.S. lithium development company focused on advancing large-scale domestic lithium resources. The Company's portfolio will include the McDermitt Lithium Project in Oregon and the Clayton North Project in Nevada, which are positioned to support growing demand for battery materials and critical minerals in the United States. For more information, visit **<u>uselemental.com</u>.**

**ABOUT JINDALEE**

Jindalee Lithium is an Australian company focused on developing the McDermitt Lithium Project, one of the largest lithium resources in the U.S. With 100% ownership and unencumbered offtake rights,Jindalee is strategically positioned to support America's energy security and domestic supply of critical minerals. The company recently completed a Pre-Feasibility Study (PFS) confirming McDermitt's scale, long-life, and low-cost production potential, with strong engagement from US government agencies, including the Department of Energy.

**ABOUT CONSTELLATION ACQUISITION CORP. I AND ANTARCTICA CAPITAL**

Constellation Acquisition Corp. I ("CSTA'') is a special purpose acquisition company formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or similar business combination. CSTA is led by executives of Antarctica Capital, an international investment firm headquartered in New York with $10 billion of assets under management as of December 31, 2025. Antarctica Capital is dedicated to investments in public and private markets and the establishment of long-term capital vehicles to leverage this investment focus. For more information about CSTA, visit https://constellationacquisition.com. For more information about Antarctica Capital, visit https://antarcticacapital.com.

**NO OFFER OR SOLICITATION**

This press release does not constitute an offer to sell, or a solicitation of an offer to buy, or a recommendation to purchase, any securities in any jurisdiction, or the solicitation of any vote, consent or approval in any jurisdiction in connection with the proposed business combination (the "Transaction") by and among HiTech Minerals,Jindalee, Constellation and US Elemental or any related transactions, nor shall there be any sale, issuance or transfer of any securities in any jurisdiction where, or to any person to whom, such offer, solicitation or sale may be unlawful under the laws of such jurisdiction. This press release does not constitute either advice or a recommendation regarding any securities. No offering of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act of 1933, as amended, or an exemption therefrom.

**ADDITIONAL INFORMATION AND WHERE TO FIND IT**

A Current Report on Form 8-K related to the Transaction was filed by Constellation with the U.S. Securities and Exchange Commission (the "SEC") on April 9, 2026. In connection with the Transaction, Constellation, Jindalee, the Company and HiTech Minerals (together, the "Contracting Parties") are also expected to prepare a registration statement on Form S-4 (the "Registration Statement") to be filed with the SEC by the Company and Constellation, which will include preliminary and definitive proxy statements to be distributed to Constellation's shareholders in connection with Constellation's solicitation for proxies for the vote by Constellation's shareholders in connection with the Transaction and other matters as described in the Registration Statement, as well as the prospectus relating to the offer of the securities of the Company or Constellation in connection with the completion of the Transaction. After the Registration Statement has been filed and declared effective, Constellation will mail a definitive proxy statement and other relevant documents to its shareholders as of the record date to be established for voting on the Transaction. Constellation's shareholders and other interested persons are advised to read, once available, the preliminary proxy statement/prospectus and any amendments thereto, and the definitive proxy statement/prospectus, in connection with Constellation's solicitation of proxies for its extraordinary general meeting of shareholders to be held to approve, among other things, the Transaction, because these documents will contain important information about the Contracting Parties and the Transaction. Shareholders may also obtain a copy of the preliminary or definitive proxy statement, once available, as well as other documents filed with the SEC regarding the Transaction and other documents filed with the SEC by Constellation and the Company, without charge, at the SEC's website located at www.sec.gov or by directing a request to Constellation Acquisition Corp I, 1290 Avenue of the Americas, New York, NY 10104.

This press release is not a substitute for the Registration Statement or for any other document that Constellation and/or the Company may file with the SEC in connection with the Transaction. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ **THE** DOCUMENTS FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.

**FORWARD LOOKING STATEMENTS**

Certain statements included in this press release are not historical facts but are forward-looking statements, including for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements generally are accompanied by words such as "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect," "should," "would," "plan," "project," "forecast," "predict," "potential," "seem," "seek," "future," "outlook," "target," and similar expressions that predict or indicate future events or trends or that are not statements of historical matters, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements include, but are not limited to (1) statements regarding estimates and forecasts of financial, performance and operational metrics, projections of market opportunity, anticipated size of the lithium resources, expected support from Jindalee, expected NPV or post-tax IRR, and planned production per year; (2) references with respect to the anticipated benefits of the Transaction and the projected future financial and operational performance of the Company following the Transaction, which may be affected by, among other things, competition, the ability of the Company to grow and manage growth profitably, maintain relationships and retain its management and key employees; (3) the sources and uses of cash of the Transaction; (4) the anticipated capitalization and enterprise value of the Company following the consummation of the Transaction; (5) statements regarding the Company's operations following the Transaction; (6) the amount of redemption requests made by Constellation's public shareholders; (7) current and future potential commercial relationships; (8) plans, intentions or future operations of the Company or HiTech Minerals, including relating to the finalization, completion of any studies, feasibility studies or other assessments or relating to attainment, retention or renewal of any assessments, permits, licenses or other governmental notices or approvals, or the commencement or continuation of any construction or operations of plants or facilities; (9) the ability of the Company or Constellation to issue equity or equity-linked securities in the future or raise additional capital in a PIPE financing; (10) the outcome of any legal proceedings that may be instituted against Contracting Parties; (11) changes to the proposed structure of the Transaction that may be required or appropriate as a result of applicable laws or regulations; (12) the ability to meet stock exchange listing standards following the Transaction; (13) the risk that the Transaction disrupts current plans and operations of the Constellation, the Company or HiTech Minerals; (14) the availability of federal, state or local government support, and risks related to extensive regulation, compliance obligations and rigorous enforcement by federal, state, and non-U.S. governmental authorities; and (15) expectations related to the terms and timing of the Transaction and the ability of the parties to successfully consummate the Transaction. These statements are based on various assumptions, whether or not identified in this press release, and on the current expectations of the Contracting Parties' management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by any investor as, a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. Many actual events and circumstances are beyond the control of the Contracting Parties. These forward-looking statements are subject to a number of risks and uncertainties, as set forth in the slide entitled "Risk Factors" in the investor presentation published on April 9, 2026 and those set forth in the section entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements and Risk Factor Summary" in Constellation's Annual Report on Form 10-K for the year ended December 31, 2024 (the "Annual Report"), and in those other documents that Constellation has filed, or that the Company and Constellation will file, with the SEC. If any of these risks materialize or our assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. The risks and uncertainties above are not exhaustive, and there may be additional risks that none of the Contracting Parties presently know or that they currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward looking statements reflect relevant Contracting Parties' expectations, plans or forecasts offuture events and views as of the date of this press release. Each of the Contracting Parties anticipate that subsequent events and developments will cause those assessments to change. However, while the Contracting Parties may elect to update these forward-looking statements at some point in the future, each of the Contracting Parties specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as representing any of the Contracting Parties' assessments as of any date subsequent to the date of this press release. Accordingly, undue reliance should not be placed upon the forward-looking statements.

**PARTICIPANTS IN THE SOLICITATION**

Constellation, Jindalee and the Company and their respective directors and executive officers, under SEC rules, may be deemed to be participants in the solicitation of proxies of Constellation's shareholders in connection with the Transaction. Investors and security holders may obtain more detailed information regarding Constellation's directors and executive officers in Constellation's filings with the SEC, including the Annual Report and the other documents filed by Constellation with the SEC from time to time. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of proxies to Constellation's shareholders in connection with the Transaction, including a description of their direct and indirect interests, which may, in some cases, be different than those of Constellation's shareholders generally, will be set forth in the Registration Statement. Shareholders, potential investors and other interested persons should read the Registration Statement carefully when it becomes available before making any voting or investment decisions. Free copies of any documents described in the foregoing may be obtained as described under *"Additional Information And Where To Find It."*

 

**Contacts:**

US Elemental:

**Investors**

Bryan Baritot

Alliance Advisors IR

USElementalIR@allianceadvisors.com

**Media**

Fatema Bhabrawla

fbhabrawala@allianceadvisors.com

Constellation:

**Investors/Media**

Pro-AntarcticaPR@prosek.com

![](ea028651701_ex99-1img3.jpg)

![](ea028651701_ex99-1img2.jpg)

<u>Privacy Polic</u>y

## Exhibit 99.2

**Exhibit 99.2**

**Subject:** An American Lithium Story \| US Elemental – Investor Webcast \| Wednesday, April 22 at 10AM ET

Dear [.],

I wanted to reach out to introduce **US Elemental Inc.**, a new U.S. lithium development company that recently announced a definitive Business Combination Agreement with Constellation Acquisition Corp. I (OTCPK: CSTAF) to pursue a Nasdaq listing under the ticker **ULIT**. Management will be hosting a live investor webcast on **Wednesday, April 22 at 10:00 AM ET** to walk through the story in detail -- registration details below.

The transaction, announced on April 9th, brings together HiTech Minerals Inc., a wholly owned subsidiary of Jindalee Lithium Limited (ASX: JLL), and Constellation, a SPAC sponsored by Antarctica Capital, a global investment manager with over $10 billion in assets under management. You can read the full press release here: US Elemental, a U.S. Lithium Development Company, to List on NASDAQ Through Business Combination with Constellation Acquisition Corp. I

**About US Elemental**

US Elemental will hold the **McDermitt Lithium Project** in Oregon, one of the largest lithium resources in the United States.

Key highlights include:

* **21.5 million tonnes LCE** mineral resource with an estimated 63-year project life

* **$3.2B post-tax NPV (8%)** and **17.9% post-tax IRR** per the 2024 Pre-Feasibility Study

* **One of the first 10 mining projects** added to the U.S. government's FAST-41 critical minerals permitting
program

* **DOE partnership** to advance domestic lithium supply through funded process optimization

With U.S. lithium demand projected to grow substantially and domestic supply chains a national security priority, US Elemental is positioned at the intersection of policy, capital, and critical minerals development.

**Join Us – Live Investor Webcast**

📅 **Date:** Wednesday, April 22, 2026<br> 🕙 **Time:** 10:00 AM Eastern Time<br> 🔗 **Register here:** Zoom Link

For additional materials, please visit: uselemental.com

US Elemental Investor Presentation: US Elemental - Securing America's Lithium Supply

We hope you can join us. Please don't hesitate to reach out with any questions in the meantime.

Best Regards,

Jordan Simon

Alliance Advisors IR

**NO OFFER OR SOLICITATION**

This communication does not constitute an offer to sell, or a solicitation of an offer to buy, or a recommendation to purchase, any securities in any jurisdiction, or the solicitation of any vote, consent or approval in any jurisdiction in connection with the proposed business combination (the "Transaction") by and among HiTech Minerals Inc. ("HiTech Minerals"), a wholly owned subsidiary of Jindalee Lithium Limited ("Jindalee"), Constellation Acquisition Corp. I ("Constellation") and US Elemental Inc. (the "Company") or any related transactions, nor shall there be any sale, issuance or transfer of any securities in any jurisdiction where, or to any person to whom, such offer, solicitation or sale may be unlawful under the laws of such jurisdiction. This communication does not constitute either advice or a recommendation regarding any securities. No offering of securities shall be made except by means of a prospectus meeting the requirements of the Securities Act of 1933, as amended, or an exemption therefrom.

**ADDITIONAL INFORMATION AND WHERE TO FIND IT**

A Current Report on Form 8-K related to the Transaction was filed with the U.S. Securities and Exchange Commission (the "SEC") on April 9, 2026. In connection with the Transaction, Constellation, Jindalee, the Company and HiTech Minerals (together, the "Contracting Parties") are also expected to prepare a registration statement on Form S-4 (the "Registration Statement") to be filed with the SEC by the Company and Constellation, which will include preliminary and definitive proxy statements to be distributed to Constellation's shareholders in connection with Constellation's solicitation for proxies for the vote by Constellation's shareholders in connection with the Transaction and other matters as described in the Registration Statement, as well as the prospectus relating to the offer of the securities of the Company or Constellation in connection with the completion of the Transaction. After the Registration Statement has been filed and declared effective, Constellation will mail a definitive proxy statement and other relevant documents to its shareholders as of the record date to be established for voting on the Transaction. Constellation's shareholders and other interested persons are advised to read, once available, the preliminary proxy statement/prospectus and any amendments thereto, and the definitive proxy statement/prospectus, in connection with Constellation's solicitation of proxies for its extraordinary general meeting of shareholders to be held to approve, among other things, the Transaction, because these documents will contain important information about the Contracting Parties and the Transaction. Shareholders may also obtain a copy of the preliminary or definitive proxy statement, once available, as well as other documents filed with the SEC regarding the Transaction and other documents filed with the SEC by Constellation and the Company, without charge, at the SEC's website located at www.sec.gov or by directing a request to Constellation Acquisition Corp I, 1290 Avenue of the Americas, New York, NY 10104.

This communication is not a substitute for the Registration Statement or for any other document that Constellation and/or the Company may file with the SEC in connection with the Transaction. INVESTORS AND SECURITY HOLDERS ARE URGED TO READ THE DOCUMENTS FILED WITH THE SEC CAREFULLY AND IN THEIR ENTIRETY WHEN THEY BECOME AVAILABLE BECAUSE THEY WILL CONTAIN IMPORTANT INFORMATION.

**FO WARD LOOKING STATEMENTS**

Certain statements included in this communication are not historical facts but are forward-looking statements, including for purposes of the safe harbor provisions under the United States Private Securities Litigation Reform Act of 1995. Forward-looking statements generally are accompanied by words such as "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect," "should," "would," "plan," "project," "forecast," "predict," "potential," "seem," "seek," "future," "outlook," "target," and similar expressions that predict or indicate future events or trends or that are not statements of historical matters, but the absence of these words does not mean that a statement is not forward-looking. These forward-looking statements include, but are not limited to (1) statements regarding estimates and forecasts of financial, performance and operational metrics, projections of market opportunity, anticipated size of the lithium resources, expected support from Jindalee, expected NPV or post-tax IRR, and planned production per year; (2) references with respect to the anticipated benefits of the Transaction and the projected future financial and operational performance of the Company following the Transaction, which may be affected by, among other things, competition, the ability of the Company to grow and manage growth profitably, maintain relationships and retain its management and key employees; (3) the sources and uses of cash of the Transaction; (4) the anticipated capitalization and enterprise value of the Company following the consummation of the Transaction; (5) statements regarding the Company's operations following the Transaction; (6) the amount of redemption requests made by Constellation's public shareholders; (7) current and future potential commercial relationships; (8) plans, intentions or future operations of the Company or HiTech Minerals, including relating to the finalization, completion of any studies, feasibility studies or other assessments or relating to attainment, retention or renewal of any assessments, permits, licenses or other governmental notices or approvals, or the commencement or continuation of any construction or operations of plants or facilities; (9) the ability of the Company or Constellation to issue equity or equity-linked securities in the future or raise additional capital in a PIPE financing; (10) the outcome of any legal proceedings that may be instituted against Contracting Parties; (11) changes to the proposed structure of the Transaction that may be required or appropriate as a result of applicable laws or regulations; (12) the ability to meet stock exchange listing standards following the Transaction; (13) the risk that the Transaction disrupts current plans and operations of the Constellation, the Company or HiTech Minerals; (14) the availability of federal, state or local government support, and risks related to extensive regulation, compliance obligations and rigorous enforcement by federal, state, and non-U.S. governmental authorities; and (15) expectations related to the terms and timing of the Transaction and the ability of the parties to successfully consummate the Transaction. These statements are based on various assumptions, whether or not identified in this communication, and on the current expectations of the Contracting Parties' management and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by any investor as, a guarantee, an assurance, a prediction or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. Many actual events and circumstances are beyond the control of the Contracting Parties. These forward-looking statements are subject to a number of risks and uncertainties, as set forth in the slide entitled "Risk Factors" in the investor presentation published on April 9, 2026 and those set forth in the section entitled "Risk Factors" and "Cautionary Note Regarding Forward-Looking Statements and Risk Factor Summary" in Constellation's Annual Report on Form 10-K for the year ended December 31, 2024 (the "Annual Report"), and in those other documents that Constellation has filed, or that the Company and Constellation will file, with the SEC. If any of these risks materialize or our assumptions prove incorrect, actual results could differ materially from the results implied by these forward-looking statements. The risks and uncertainties above are not exhaustive, and there may be additional risks that none of the Contracting Parties presently know or that they currently believe are immaterial that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward looking statements reflect relevant Contracting Parties' expectations, plans or forecasts of future events and views as of the date of this communication. Each of the Contracting Parties anticipate that subsequent events and developments will cause those assessments to change. However, while the Contracting Parties may elect to update these forward-looking statements at some point in the future, each of the Contracting Parties specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as representing any of the Contracting Parties' assessments as of any date subsequent to the date of this communication. Accordingly, undue reliance should not be placed upon the forward-looking statements.

**PARTICIPANTS IN THE SOLICITATION**

Constellation, Jindalee and the Company and their respective directors and executive officers, under SEC rules, may be deemed to be participants in the solicitation of proxies of Constellation's shareholders in connection with the Transaction. Investors and security holders may obtain more detailed information regarding Constellation's directors and executive officers in Constellation's filings with the SEC, including the Annual Report and the other documents filed by Constellation with the SEC from time to time. Information regarding the persons who may, under SEC rules, be deemed participants in the solicitation of proxies to Constellation's shareholders in connection with the Transaction, including a description of their direct and indirect interests, which may, in some cases, be different than those of Constellation's shareholders generally, will be set forth in the Registration Statement. Shareholders, potential investors and other interested persons should read the Registration Statement carefully when it becomes available before making any voting or investment decisions. Free copies of any documents described in the foregoing may be obtained as described under "*Additional Information And Where To Find It.*"

## Exhibit 99.3

**Exhibit 99.3**

**<u>US Elemental</u>**

We're hosting a live investor webinar next week and we'd love for you to join us.

Join management of HiTech Minerals and Constellation on Wednesday, April 22 at 10:00 AM ET to learn about the company's proposed Nasdaq listing and plans to develop the McDermitt Lithium Project -- one of the largest lithium resources in the United States.

📅 Live Investor Webinar

April 22, 2026 \| 10:00 AM ET

Hear from management on the proposed transaction, anticipated Nasdaq listing, and the McDermitt Lithium Project, including a live Q&A.

👉 Register here: **https://loom.ly/_xK2Q14**

<br> **<u>hashtag#USElemental hashtag#CriticalMinerals hashtag#Lithium hashtag#Nasdaq hashtag#SPAC hashtag#McDermitt</u>**

![](ea028651701_ex99-3img1.jpg)