Investor Presentaiton

Safe Harbor atomera This presentation contains forward-looking statements concerning Atomera Incorporated ("Atomera,” the "Company,” “we,” “us,” and "our"). The words “believe,” “may,” “will,” “potentially," "estimate,” “continue,” “anticipate,” “intend,” “could,” “would,” “project,” "plan," "expect" and similar expressions that convey uncertainty of future events or outcomes are intended to identify forward- looking statements. These forward-looking statements are subject to a number of risks, uncertainties and assumptions, including those disclosed in the section "Risk Factors" included in our Annual Report on Form 10-K filed with the SEC on February 15, 2022. In light of these risks, uncertainties and assumptions, the forward-looking events and circumstances discussed in this presentation may not occur and actual results could differ materially and adversely from those anticipated or implied in our forward-looking statements. You should not rely upon forward-looking statements as predictions of future events. Although we believe that the expectations reflected in our forward-looking statements are reasonable, we cannot guarantee that the future results, levels of activity, performance or events and circumstances described in the forward-looking statements will be achieved or occur. This presentation contains only basic information concerning Atomera. The Company's filings with the Securities Exchange Commission, including the Prospectus Supplement, include more information about factors that could affect the Company's operating and financial results. We assume no obligation to update information contained in this presentation. Although this presentation may remain available on the Company's website or elsewhere, its continued availability does not indicate that we are reaffirming or confirming any of the information contained herein. Atomera Incorporated 2

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