UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: April 15, 2026 4:00 P.M.
Form: S-4
CIK: 0002023730
Company Name: GigCapital7 Corp.
File Number: 333-291477
CIK: 0002091991
Company Name: Hadron Energy, Inc.
File Number: 333-291477-01