Company: GIGGU
Filing Date: 2025-11-26
Form Type: 425
Source: 0001193125-25-298527
Chunk: 19

Company: GigCapital7 Corp.
Filing Date: 2025-11-26
Form: 425
Chunk 19
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 Cycle 50-Year Useful Life 10 MW of Electrical Power 35 MW of Thermal Power P. 20/23 DEMONSTRATED TRACTION Source: (1) IEA, Demand: Global electricity use to grow strongly in 2025 and 2026

CONFIDENTIAL Transaction Highlights Sources & Uses ($ Millions) SOURCES • Implied pre-money equity value of $1.0B (4) Hadron Energy Rollover Equity $1,000.0 Valuation • Transaction implies ~$1.2B pro-forma enterprise value (2) Cash in Trust / PIPE Proceeds $211.8 Total sources $1,211.8 • Assumes ~$212M at $10.59 per share from a combination of PIPE Proceeds and Cash in Trust Financing USES • Expected uses include OPEX & MMR Development $1,000.0 Equity to Hadron Energy Cash to Balance Sheet $199.9 • Hadron Energy shareholders would roll 100% of their equity Deal Transaction Expenses $11.9 and are expected to have a pro- forma equity ownership of Structure 75.0% Total uses $1,211.8 Pro Forma Valuation ($ Millions) Pro Forma Ownership PF Shares Outstanding (Millions) 133.3 Shares (Millions) % Own. (3) Share Price ($) $10.59 Hadron 100.0 75.0% PF Equity Value $1,412 .0 SPAC Sponsor 13.3 10.0% (1) (- ) PF Net Cash ($199.9) PIPE Shareholders 20.0 15.0% PF Enterprise Value $1,212.1 P. 21/23 ILLUSTRATIVE TRANSACTION OVERVIEW Source: (1) GigCapital7 cash-in-trust plus PIPE investment and Hadron cash less illustrative expenses. (2) Assumes 0% of GigCapital7 shareholders exercise redemption rights to receive cash from trust account at closing. (3) Based on expected redemption price at closing of the transaction as calculated in the Business Combination Agreement ﬁled on September 27, 2025 (4) Hadron Energy Rollover Equity Value based on a $10.00 per share

CONFIDENTIAL Primary Core Comparables Other Comparables Target MMR / SMR TECHNOLOGY Announced De-SPACs (1) (2) (2) (2) (2) $16,117 $14,841 ? $5,950 Median