GreenLight SPAC Presentation Deck

Disclaimer Caution Regarding Forward Looking Statements Certain statements included in this Investor Presentation ("Presentation") that are not historical facts are forward-looking statements for purposes of US law. Forward-looking statements generally are accompanied by words such as "believe," "may," "will," "estimate," "continue," "anticipate," "intend," "expect," "should," "would," "plan," "pipeline", "predict," "project," "forecast," "potential," "seem," "seek," "strategy," "future," "outlook," "opportunity," "should," "would," "will be," "will continue," "will likely result" and similar expressions that predict or indicate future events or trends or that are not statements of historical matters. These forward-looking statements include, but are not limited to, statements regarding operating results, product field test clinical trials, future liquidity, the proposed transaction between Environmental Impact Acquisition Corporation ("ENVI") and GreenLight, including statements as to the expected timing, funding, completion and effects of the Proposed Business Combination or other steps or transactions associated with it and financial estimates, forecasts, and performance metrics and projections of market opportunity. These statements are based on various assumptions, whether or not identified in this Presentation, and on the current expectations of the respective management of GreenLight and Environmental Impact Acquisition Corporation ("ENVI") and are not predictions of actual performance. These forward-looking statements are provided for illustrative purposes only and are not intended to serve as, and must not be relied on by an investor as, a guarantee, an assurance, a prediction, or a definitive statement of fact or probability. Actual events and circumstances are difficult or impossible to predict and will differ from assumptions. Many actual events and circumstances are beyond the control of GreenLight and Environmental Impact Acquisition Corporation ("ENVI"). These forward-looking statements are subject to a number of risks and uncertainties, including the extent of the impact of the COVID-19 pandemic, changes in domestic and foreign business, market, financial, political, and legal conditions; the inability of the parties to successfully or timely consummate the Proposed Business Combination, including the risk that any regulatory approvals are not obtained, are delayed or are subject to unanticipated conditions that could adversely affect the combined company or the expected benefits of the Proposed Business Combination or that the approval of the stockholders of Environmental Impact Acquisition Corporation ("ENVI") or GreenLight is not obtained; failure to realize the anticipated benefits of the Proposed Business Combination; risks relating to the uncertainty of the projected financial information with respect to GreenLight; risks related to the development, trial and regulatory approval of GreenLight's products; the effects of competition on GreenLight's business; the amount of redemption requests made by Environmental Impact Acquisition Corporation's ("ENVI") stockholders; and the ability of Environmental Impact Acquisition Corporation ("ENVI") or GreenLight to issue equity or equity-linked securities or obtain debt financing in connection with the Proposed Business Combination or in the future. There may be additional risks that neither Environmental Impact Acquisition Corporation ("ENVI") nor GreenLight presently know, or that Environmental Impact Acquisition Corporation ("ENVI") nor GreenLight currently believe are immaterial, that could also cause actual results to differ from those contained in the forward-looking statements. In addition, forward-looking statements reflect Environmental Impact Acquisition Corporation's ("ENVI") and GreenLight's expectations, plans, or forecasts of future events and views as of the date of this Presentation. Environmental Impact Acquisition Corporation ("ENVI") and GreenLight anticipate that subsequent events and developments will cause Environmental Impact Acquisition Corporation's ("ENVI") and GreenLight's assessments to change. However, while Environmental Impact Acquisition Corporation ("ENVI") and GreenLight may elect to update these forward-looking statements at some point in the future, Environmental Impact Acquisition Corporation ("ENVI") and GreenLight specifically disclaim any obligation to do so. These forward-looking statements should not be relied upon as representing Environmental Impact Acquisition Corporation's ("ENVI") and GreenLight's assessments of any date after the date of his Presentation. Accordingly, undue reliance should not be placed upon the forward-looking statements. Investor Presentation | © 2021 GreenLight Biosciences. All rights reserved. GreenLight confidential. 2

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