M3-Brigade Acquisition III Corp. (NYSE: MBSC-UN) is a blank check company, or special purpose acquisition company (SPAC), formed for the purpose of effecting a merger, capital stock exchange, asset acquisition, stock purchase, reorganization, or similar business combination with one or more businesses or assets; it currently has no significant operations. The company, sponsored by the founders and senior executives of M3 Partners LP and Brigade Capital Management LP, focuses on targets with an enterprise value of at least $1 billion, particularly in sectors such as those impacted by COVID-19 or renewable energy. Incorporated in 2021 and headquartered at 1700 Broadway, 19th Floor, New York, New York, it operates primarily in the United States with a global acquisition mandate. In September 2023, the company completed a business combination with Greenfire Resources Inc. through a reverse merger transaction, resulting in the combined entity listing on the New York Stock Exchange under Greenfire Resources Ltd.; prior to closing, its sponsor extended the completion deadline multiple times, including deposits into the trust account in 2022 and 2023 to support the process with Greenfire, an oil sands producer valued at approximately $950 million in the deal.