Spark I Acquisition Corporation entered into a definitive merger agreement on June 11, 2026, to combine with ZincFive, Inc. in a business combination expected to close in the second half of 2026. The transaction assigns an equity value of $600,000,000 to ZincFive. As part of the deal, Spark I will domesticate from the Cayman Islands to Delaware and change its name to ZincFive, Inc. Concurrently, institutional investors agreed to purchase 10,441,174 shares of New ZincFive 12.0% Series A Cumulative Convertible Preferred Stock for $106.5 million. The merger is subject to shareholder approval, regulatory clearances, and other customary closing conditions. Spark I Acquisition Corporation is a special purpose acquisition company (SPAC) seeking to merge with a target company.