Benson Hill, Inc.

ed time period: Benson Hill, Inc. (the “Company”) is filing this Notification on Form 12b-25 with respect to its Annual Report on Form 10-K for the fiscal year ended December 31, 2024 (the “2024 Form 10-K”). As disclosed in prior filings with the U.S. Securities and Exchange Commission, the Company has undertaken substantial efforts to reduce operating expenses and improve liquidity, including the sale of certain assets, the furlough of certain employees, and the pursuit of an “asset-light” business model. However, notwithstanding such efforts, the Company does not currently have sufficient liquidity to pursue its long-term strategy. Accordingly, the Company is currently considering the actions available to it to protect its intellectual property and other assets and preserve its remaining cash. These actions may include filing for bankruptcy protection to implement a plan of reorganization, court-supervised sale and/or liquidation of the Company. Due to such liquidity constraints and to the considerable time and resources devoted to the above efforts, the Company is unable to file the 2024 Form 10-K within the prescribed time period

Star Peak Corp II (the “ Company ”) has determined that it is unable, without unreasonable effort or expense, to file its Quarterly Report on Form 10-Q for the fiscal quarter ended March 31, 2021 (the “ Q1 2021 Form 10-Q ”) by the prescribed due date for the reasons described below. On April 12, 2021, the Staff of the U.S. Securities and Exchange Commission (the “ SEC ”) issued the “Staff Statement on Accounting and Reporting Considerations for Warrants Issued by Special Purpose Acquisition Companies (“ SPACs ”)” (the “ SEC Statement ”), which clarified guidance for all SPAC-related companies regarding the accounting and reporting for their warrants. Following review of the SEC Statement, the Company reevaluated the accounting treatment of its public warrants and private placement warrants as equity, and concluded that, based on the SEC Statement, the public warrants and private placement warrants should be, and should previously have been, classified as a liability measured at fair value, with non-cash fair value adjustments recorded in earnings at each reporting period. The Company is currently determining the extent of the SEC Statement’s impact on its financial statements as of and for the three months ended March 31, 2021 included in the Q1 2021 Form 10-Q. The Company is evaluating the impact of the SEC Statement on its internal control over financial reporting related to accounting for its public and private placement warrants. The Company is working diligently to complete the Q1 2021 Form 10-Q as soon as possible; however, given the scope of the process for determining the appropriate treatment of the public warrant and private placement warrants in accordance with the SEC Statement and appropriately reporting such treatment in the Q1 2021 Form 10-Q, the Company is unable to complete and file the Q1 2021 Form 10-Q by the required due date of May 17, 2021 without unreasonable effort and expense