8-K: Marine Thinking to Go Public via Eureka SPAC Merger

Marine Thinking Inc., an AI-powered autonomous marine technology company, will become publicly traded on NASDAQ through a business combination with Eureka Acquisition Corp.

Summary

• Eureka Acquisition Corp. (SPAC) and Marine Thinking Inc. (Company) entered into a definitive Business Combination Agreement (BCA) on October 29, 2025.
• The transaction will result in Marine Thinking becoming a publicly traded company, renamed Marine Thinking Holdings Inc., and listed on The NASDAQ Stock Market LLC.
• The proposed pre-money valuation for Marine Thinking is approximately US$130 million at closing.
• The business combination involves the SPAC deregistering from the Cayman Islands and domesticating to Canada, then amalgamating with 17358750 Canada Inc. (Amalgamation Sub), a wholly-owned subsidiary of the SPAC.
• Company shareholders will receive SPAC Class A Shares in exchange for their Company Shares, based on an Amalgamation Multiple.
• SPAC Class B Shares will convert to SPAC Class A Shares, and SPAC Rights will convert to one-fifth of a SPAC Class A Share.
• Lock-up agreements are in place for the SPAC Sponsor and certain Company shareholders for 365 days post-closing, with an early release clause if SPAC Shares equal or exceed US$12.00 per share for 20 trading days within any 30-trading day period.
• A termination fee of US$2,000,000 is payable by either party under specific breach or failure-to-close circumstances.
• The transaction is subject to customary closing conditions, including regulatory and shareholder approvals, and SEC review of the Form S-4 registration statement.

Sentiment

Score: 8

Explanation: The filing announces a definitive business combination with a positive outlook, strong management comments, and strategic alignment, indicating a highly favorable development for Marine Thinking and its stakeholders.

Positives

• Marine Thinking is positioned as a leader in physical AI technology for autonomous marine operations, transforming the marine industry.
• The company has grown into Canada's leading autonomous ship and fleet solution provider, with solutions applied in over a dozen countries.
• The technology addresses critical industry challenges, such as the growing shortage of seafarers, by popularizing unmanned marine applications.
• The transaction received unanimous approval from the boards of directors of both Eureka Acquisition Corp. and Marine Thinking Inc.
• Strong internal backing is evidenced by support and voting agreements from Hercules Capital Management Corp (SPAC Sponsor) and certain Company shareholders.
• The transaction is intended to qualify for tax-free treatment for both U.S. and Canadian federal income tax purposes.

Risks

• Conditions to the closing of the proposed transaction may not be satisfied, including the failure to timely obtain shareholder or regulatory approval.
• Uncertainties exist regarding the timing of the consummation of the proposed transaction.
• Anticipated benefits of the proposed transaction may not be fully realized.
• The proposed transaction could face adverse tax treatment.
• The occurrence of any event could give rise to the termination of the proposed transaction.
• Shareholder litigation in connection with the proposed transaction could affect its timing or occurrence, or result in significant costs.
• Changes in general economic and/or industry-specific conditions could impact the combined company.
• Possible disruptions from the proposed transaction could harm Marine Thinking's business.
• The ability of Marine Thinking to retain, attract, and hire key personnel may be challenged.
• Potential adverse reactions or changes to relationships with customers, employees, suppliers, or other parties could arise.
• Business uncertainty during the pendency of the proposed transaction could affect Marine Thinking's financial performance.
• Legislative, regulatory, and economic developments, as well as catastrophic events, could impact the business.
• The aggregate number of Dissent Shares exceeding 5% of outstanding Company Shares immediately prior to the Amalgamation Effective Time could prevent closing.
• Failure to deliver PCAOB Financials by specified dates could lead to termination of the Business Combination Agreement.
• If a SPAC Extension is not effected, the SPAC may be forced to liquidate in accordance with its Organizational Documents.
• Failure to obtain Company Shareholder Approval within twenty (20) Business Days after the Proxy/Registration Statement becomes effective could lead to termination.
• Material breach of covenants, agreements, representations, and warranties by either party could lead to termination of the Business Combination Agreement.

Future Outlook

Marine Thinking remains dedicated to advancing unmanned marine technologies that drive commercial growth and global impact. The partnership is expected to accelerate innovation in ocean technology, empowering advancements in aquaculture and environmental stewardship while creating value for stakeholders. The combined company will be renamed Marine Thinking Holdings Inc. and listed on NASDAQ.

Management Comments

• Lishao Wang, Founder and Chairman of Marine Thinking: "Our eight years of innovation in autonomous vessel technology have been strengthened by the invaluable support of many departments of the Federal Government of Canada. We also appreciate the long-term incubation, help and support from our partners in Halifax including COVE, The PIER Halifax, VOLTA, Atlantic Canada Opportunities Agency and others. As we move forward as a public company, we remain dedicated to advancing unmanned marine technologies that drive commercial growth and global impact. I believe that our persistent and honest efforts are the best way to repay those who have helped us."
• Patrick Sapphire, incoming Chairman of Marine Thinking and cornerstone investor at Principle Capital Partners Corp.: "Our early investment was driven by confidence in the team's vision and the clear momentum toward AI-driven, unmanned solutions in the marine industry. We are proud of what has been achieved so far and have strong confidence in our team's ability to deliver exceptional growth going forward."
• Eric Zhang, Chairman and CEO of Eureka: "I am thrilled to announce our business combination with Marine Thinking, a leader in physical AI technology transforming sustainable marine operations. We believe this partnership will accelerate innovation in ocean technology, empowering advancements in aquaculture and environmental stewardship while creating value for our stakeholders."

Industry Context

Marine Thinking specializes in physical AI technology for autonomous ship and fleet solutions, aiming to transform the marine industry. This addresses the growing shortage of seafarers and popularizes unmanned applications in various marine fields like ferries, river freight, water surveys, rescue, and defense. The business combination positions the company to accelerate innovation in ocean technology, supporting advancements in aquaculture and environmental stewardship.

Management Changes

Corporate Governance

Related Party Transactions

• An Option Purchase Agreement dated July 6, 2025, between Hercules Capital Management Corp (SPAC Sponsor) and Marine Thinking Inc., grants an option to purchase 583,333 SPAC Shares for US$1,750,000.
• An Option Assignment Agreement dated September 23, 2025, where Marine Thinking Inc. assigned its rights under the Option Purchase Agreement to 17323204 Canada Inc., a company owned by Marine Thinking's shareholders in similar proportions. The consideration was the transfer of 583,333 MTI Shares at a deemed price of US$3.00 per share (US$1,750,000 aggregate) to Marine Thinking's treasury for cancellation.
• Promissory Notes between the SPAC and the IPO Sponsor for working capital, SPAC Extension, or other purposes, with outstanding amounts to be repaid by the Company at closing if not converted into SPAC Class A Shares.
• A Finders Agreement dated April 1, 2025, between SPAC and Alpha Innovators Limited, for introducing potential targets, with compensation in SPAC Class A Shares equal to 3% of Company Valuation divided by Redemption Price upon business combination.

Stakeholder Impact

• Shareholders of Eureka Acquisition Corp. will vote on the business combination, SPAC Continuance, new organizational documents, director appointments, equity incentive plan, and share issuance, with public shareholders retaining redemption rights.
• Shareholders of Marine Thinking Inc. will receive SPAC Class A Shares in exchange for their Company Shares, and certain shareholders are subject to lock-up agreements and have signed voting agreements.
• Employees of Marine Thinking Inc. will see their Company Options converted into Rollover Options for SPAC Class A Shares, and key executives will enter into new employment agreements, benefiting from a new SPAC Equity Incentive Plan.
• Management of both Eureka and Marine Thinking will form a new board for the combined company, with Eric Zhang (Eureka CEO) joining and Patrick Sapphire (Principle Capital Partners Corp.) becoming incoming Chairman, with D&O indemnification and insurance maintained.
• The IPO Sponsor, Hercules Capital Management Corp, has committed to vote its shares in favor of the transaction, is subject to lock-up agreements, and will designate one director to the combined company's board.
• Customers and the broader marine industry stand to benefit from the combined company's focus on advancing autonomous ship and fleet solutions, potentially leading to more efficient and sustainable marine operations.

Next Steps

• SPAC to complete deregistration as a Cayman Islands exempted company and domestication to Canada (SPAC Continuance).
• SPAC to be renamed Marine Thinking Holdings Inc. upon completion of the SPAC Continuance.
• Marine Thinking Inc. and Amalgamation Sub to amalgamate and continue as Amalco, a wholly-owned subsidiary of the SPAC.
• SPAC to prepare and file a registration statement on Form S-4 (Proxy/Registration Statement) with the SEC.
• The SEC must declare the Proxy/Registration Statement effective.
• SPAC to establish a record date, duly call, give notice of, convene, and hold an extraordinary general meeting of SPAC Shareholders to vote on Transaction Proposals.
• Company to call a meeting of Company Shareholders or solicit written consents to obtain Company Shareholder Approval.
• SPAC Class A Shares to be approved for listing on NASDAQ or an Alternative Exchange.
• PCAOB Financials to be delivered by specified dates (November 5, 2025; November 20, 2025; January 16, 2026).
• SPAC to maintain directors and officers liability insurance for six years post-closing.
• SPAC to enter into customary indemnification agreements with post-Closing directors and officers.
• Parties to prepare and SPAC to file a preliminary and final non-offering prospectus (Canadian Prospectus) with the Nova Scotia Securities Commission and other provinces.

Key Dates

Recommendation

The definitive business combination between Eureka Acquisition Corp. and Marine Thinking Inc. presents a compelling investment opportunity. Marine Thinking is positioned as a leader in the rapidly evolving autonomous marine technology sector, addressing critical industry challenges like seafarer shortages. The US$130 million pre-money valuation appears reasonable for a company with eight years of innovation, significant government support, and international application of its solutions. The unanimous board approvals, strong shareholder support through voting agreements, and the planned NASDAQ listing provide a clear path for growth and liquidity. The lock-up agreements for key shareholders demonstrate long-term commitment. While subject to customary closing conditions and inherent risks of forward-looking statements, the strategic rationale and market potential suggest a strong upside for the combined entity.

Keywords

Marine Thinking, Eureka Acquisition Corp, SPAC, Business Combination, NASDAQ Listing, Autonomous Marine Technology, Physical AI, Ocean Technology, Corporate Merger, SEC Filing, Form 8-K, Canada Business Corporations Act, CBCA, Lock-up Agreement, Registration Rights, Corporate Governance