EMCORE : Corporate Investor Presentation February 2023

Investor Presentation

August 2023

Safe Harbor Statement

Forward-Looking Statements:

The information provided herein may include forward-looking statements within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Exchange Act of 1934 ("Exchange Act"). These forward-looking statements are largely based on EMCORE Corporation's (the "Company") current expectations and projections about future events and financial trends affecting the financial condition of the Company's business. Such forward-looking statements include, in particular, statements about the Company's future results of operations, financial position, plans, strategies, targets, focus, goals, opportunities and business prospects; expectations regarding the Company's customer contracts, long-term programs, backlog and pipeline; expectations with respect to operating leverage; expectations and estimates with respect to the market and industry in which the Company operates; expectations regarding the timing, size and completion of the proposed offering; expectations regarding the sale or shutdown of certain products, businesses and facilities, including the expected timeframe thereof and benefits therefrom; and assumptions relating to the inertial navigation operating model.

These forward-looking statements may be identified by the use of terms and phrases such as "anticipates", "believes", "can", "could", "estimates", "expects", "forecasts", "intends", "may", "plans", "projects", "targets", "will", and similar expressions or variations of these terms and similar phrases. Statements regarding matters that are not historical are forward-looking statements. These forward-looking statements relate to future events or the Company's future financial performance and are subject to business, economic, and other risks and uncertainties, both known and unknown, that may cause actual results, levels of activity, performance, or achievements of the Company's business or its industry to be materially different from those expressed or implied by any forward-looking statements.

These forward-looking statements involve risks and uncertainties that could cause actual results to differ materially from those projected, including without limitation, the following: (a) risks related to the Company's ability to obtain capital; (b) any disruptions to the Company's operations as a result of restructuring activities; (c) costs and expenses incurred in connection with restructuring activities and anticipated operational costs savings arising from the restructuring actions; (d) the effects of personnel losses; (e) risks and uncertainties related to customer and vendor relationships and contractual obligations with respect to the shutdown of the Broadband business segment and the discontinuance of the Company's defense optoelectronics product line; (f) risks and uncertainties related to the closing of

the manufacturing support and engineering center in China; (g) risks related to any potential sale of the Company's wafer fabrication facility and/or the Company's remaining Broadband businesses, including

without limitation the failure to achieve any anticipated proceeds from any such sale or to fully realize the anticipated benefits of such a transaction, diversion of management's time and attention from the Company's remaining businesses to the sale of such businesses, third party costs incurred by the Company related to any such transaction, and risks associated with any liabilities related to any such assets or business that are retained by the Company in any sale transaction; (h) the effect of component shortages and any alternatives thereto; (i) the rapidly evolving markets for the Company's products and uncertainty regarding the development of these markets; (j) the Company's historical dependence on sales to a limited number of customers and fluctuations in the mix of products and customers in any period; (k) delays and other difficulties in commercializing new products; (l) the failure of new products: (i) to perform as expected without material defects, (ii) to be manufactured at acceptable volumes, yields, and cost, (iii) to be qualified and accepted by the Company's customers, and (iv) to successfully compete with products offered by the Company's competitors; (m) uncertainties concerning the availability and cost of commodity materials and specialized product components that the Company does not make internally; (n) actions by competitors; (o) risks and uncertainties related to the outcome of legal proceedings; (p) risks and uncertainties related to applicable laws and regulations; (q) acquisition-related risks, including that (i) revenue and net operating results obtained from the Systron Donner Inertial, Inc. ("SDI") business, the L3Harris Space and Navigation ("S&N") business, or the Inertial Navigation Systems business ("EMCORE Chicago") of KVH Industries, Inc. ("KVH") may not meet the Company's expectations, (ii) the costs and cash expenditures for integration of the S&N business operations or EMCORE Chicago may be higher than expected, (iii) there could be losses and liabilities arising from the acquisition of SDI, S&N, or EMCORE Chicago that the Company will not be able to recover from any source, (iv) the Company may not recognize the anticipated synergies from the acquisition of SDI, S&N, or EMCORE Chicago, and (v) the Company may not realize sufficient scale in its Navigation and Inertial Sensing product line from the SDI acquisition, the S&N acquisition, and the EMCORE Chicago acquisition and will need to take additional steps, including making additional acquisitions, to achieve the Company's growth objectives for this product line; (r) risks and uncertainties related to manufacturing and production capacity; and (s) other risks and uncertainties discussed in Part I, Item 1A. "Risk Factors" in the Company's Annual Report on Form 10-K for the fiscal year ended September 30, 2022, as such risk factors may be amended, supplemented, or superseded from time to time by the Company's subsequent periodic reports it files with the Securities and Exchange Commission ("SEC").

Forward-looking statements are based on certain assumptions and analysis made in light of the Company's experience and perception of historical trends, current conditions, and expected future developments as well as other factors that the Company believes is appropriate under the circumstances. While these statements represent the Company's judgment on what the future may hold, and the Company believes these judgments are reasonable, these statements are not guarantees of any events or financial results. All forward-looking statements in this presentation are made as of the date hereof, based on information available to the Company as of the date hereof, and subsequent facts or circumstances may contradict, obviate, undermine, or otherwise fail to support or substantiate such statements. The Company cautions you not to rely on these statements without also considering the risks and uncertainties associated with these statements and the Company's business that are addressed in its filings with the SEC that are available on the SEC's web site located at www.sec.gov, including the sections entitled "Risk Factors" in the Company's Annual Report on Form 10-K. Certain information included in this presentation may supersede or supplement forward-looking statements in its other Exchange Act reports filed with the SEC. The Company does not intend to update any forward-looking statement to conform such statements to actual results or to changes in the Company's expectations, except as required by applicable law or regulation.

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Safe Harbor Statement

Non-GAAP Financial Measures:

This presentation includes non-GAAP financial measures where indicated. Management believes these non-GAAP financial measures reflect the Company's core ongoing operating performance and facilitates comparisons across reporting periods. The Company uses these measures when evaluating its financial results and for planning and forecasting of future periods. The Company believes that these non-GAAP measures are also useful to investors in assessing its operating performance. While the Company believes in the usefulness of these non-GAAP measures, there are limitations. Non-GAAP measures may not be

reported by other companies in the Company's industry and/or may not be directly comparable to similarly titled measures of other companies due to potential differences in calculation. Further, the Company

believes that non-GAAP measures have limitations in that they do not reflect all of the amounts associated with the Company's results of operations as determined in accordance with GAAP. These measures should only be used to evaluate the Company's results of operations in conjunction with the corresponding GAAP measures and investors should consult the appendix of this presentation for reconciliations of these non-GAAP financial measures to their most directly comparable U.S. GAAP measure.

Trademarks:

EMCORE and the EMCORE logo are trademarks of EMCORE Corporation. All other trademarks and service marks are the property of their respective owners. This presentation shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state or other jurisdiction in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state or other jurisdiction.

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The New EMCORE: A&D Inertial Navigation Solutions (INS)

INERTIAL NAVIGATION SOLUTIONS

• Largest independent supplier of Inertial Navigation solutions with vertically integrated operations
• Pure Play in Aerospace and Defense in the $3B+1 Inertial Navigation Market
• $605M of Estimated Lifetime Contract Value in Production and Awarded with the leading Prime Contractors world-wide

(1) Estimated global market size for high-end inertial sensors in 2021 per Yole High End Sensors Market Research Report 2022.

FACILITIES

Alhambra, CA (HQ):

Wafer Fab, FOG, Defense-Opto, Broadband, Admin

Concord, CA:

QMEMS

(acquired June 2019)

Budd Lake, NJ:

FOG and RLG

(acquired April 2022)

Tinley Park, IL:

FOG and TACNAV

(acquired August 2022)

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Investment Highlights

Positioned to	Vertical Integration	Robust Customer Backlog
Capitalize On Large &	Enables Competitive	and Pipeline with Leading
Growing $3B+ Total	Advantage and High	A&D Companies
Addressable Market	Barriers to Entry	- $605M of Est. Lifetime
		Contract Value in
		Production and Awarded
		+ Additional ~$300M of
		Identified New
		Opportunities

Significant Growth in	Target to Exit Calendar	Significant Operating
Inertial Navigation	2023 as a Clean, Pure-	Leverage
Revenue and Gross	Play Independent
Margins	Inertial Navigation
	Business

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