Eureka Acquisition Corp is progressing toward a business combination with Marine Thinking Inc., following a $57.5 million IPO and private placements. The company’s latest quarterly and event filings disclose an interest-free Extension Note tied to merger timing, with default risks that emphasize execution pressure. Despite substantial trust account funds earmarked for the transaction, current liabilities significantly exceed liquid assets outside the trust. Sponsor Hercules Capital Management holds a significant stake and has supported operations through loans. The SPAC’s success hinges on completing the deal within regulatory deadlines, managing shareholder redemptions, and navigating legal complexities related to the Canadian amalgamation.