FY24 FULL YEAR OUTLOOK

SILICON CARBIDE INVESTMENT TRANSACTION DETAILS Transaction Structure On December 4, 2023, Coherent separated and contributed its silicon carbide (SiC) business to newly formed subsidiary at a $4 billion valuation Mitsubishi Electric and DENSO invested $1 billion into the new subsidiary in exchange for combined 25% non-controlling interest in the Business (no proceeds to Coherent) Total Investment ☐ Coherent retains 75% controlling interest in the Silicon Carbide business ☐ $1.0 billion at a $3 billion pre-money valuation ☐ Investment to fund future capital expansion and operations of the SiC business Governance and Business Leadership Long-term Supply Agreements ☐ ◉ Coherent appointed 100% of Board of the Business The Business will continue to operate under the Coherent brand with current leadership team Concurrently with closing, the Business entered into long-term supply agreements with Mitsubishi Electric and DENSO that support the expansion of substrate and epitaxial wafer shipments COHERENT Copyright 2024, Coherent. All rights reserved. 17

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