T1 Energy Discloses SEC Investigation into Accounting and Tax Credit Disclosures

T1 Energy said in a Form 10-Q that it was notified in September 2026 of an SEC investigation into its public disclosures about eligibility for Section 45X tax credits and other accounting matters. The company said it intends to cooperate fully. The disclosure followed reports of a separate investigation concerning spending projections and production timelines for its G2_Austin facility.