Atomera Inc

Investor Presentation • Oct 28, 2025

Safe Harbor

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 forwardlooking 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 March 4, 2025 (the "Annual Report"). 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 Annual Report, 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.

Mears Silicon Technology (MST®)

Quantum Engineered Materials

Transistor enhancement High Leverage IP technology for the Licensing Business \$600B semiconductor Model market Top Tier Strong, Growing and

Top Tier

Management Team

Strong, Growing and Defensible

Patent Portfolio

MST technology focus areas

MST for Advanced Nodes MST for Power

MST for RF-SOI MST for DRAM

Revenue potential and timing

MST starting wafers Easier integration, faster time to revenue

• RFSOI, GaN, Next Gen DRAM, etc

High volume potential products

Longer integration, higher revenue potential

• GAA Logic, DRAM, Power, Flash memory, etc.

Breakthrough, enabling materials

New disruptive technologies

• Si28 for Quantum, Piezo, HBM Memory, etc.

Financial Review

Income Statement	Three Months Ended
(\$ in thousands, except per-share data)	September 30, 2025		June 30, 2025		September 30, 2024
REVENUE	\$	11	\$	-	S	22
Gross Profit		(117)		(62)		19
OPERATING EXPENSES
Research & Development		3,304		3,004		2,759
General and Administration		2,165		2,048		1,812
Selling and Marketing		207		141		248
TOTAL OPERATING EXPENSES		5,676		5,193		4,819
OPERATING LOSS		(5,793)		(5,255)		(4,800)
Other Income (Expense)		220		288		205
NET LOSS	\$	(5,573)	\$	(4,967)	\$	(4,595)
Net Loss Per Share	\$	(0.19)	\$	(0.17)	\$	(0.17)
Weighted average shares outstanding		31,128		30,397		27,406
ADJUSTED EBITDA (NON-GAAP)	\$	(4,440)	\$	(3,965)	\$	(3,881)
ADJUSTED EBITDA PER SHARE	\$	(0.14)	\$	(0.13)	\$	(0.14)
Balance Sheet Information
Cash, equivalents & ST investments	\$	20,322	\$	22,026	\$	17,342
Debt		-		-		-

Mission Statement

We collaborate with customers to improve their products, through integration of MST,

so that both companies benefit financially