What T1 Energy Inc. told the SEC could break it.

U.S. Section 301 tariffs of 50% on crystalline silicon solar cells and 25% on modules raise input costs for T1, which currently imports solar cells while building domestic cell capacity.

“Currently, crystalline silicon solar cells are subject to 50% tariffs, and modules are subject to 25% tariffs.”

T1's economics depend on continued eligibility for IRC Section 45X manufacturing tax credits; the OBBBA's Foreign Entity of Concern (FEOC) rules required a restructuring given its Chinese Trina ties, and loss of 45X eligibility would materially harm results.

“series of transactions intended to allow us to continue our eligibility for 45X Tax Credits in 2026 and beyond.”

One customer — the related-party Trina Group — accounted for 78% of total net sales in 2025 ($586.8M of $755.3M) and 100% of trade receivables, an extreme single-counterparty concentration.

“For the year ended December 31, 2025, one customer accounted for 78% of our total net sales.”

T1 carries substantial indebtedness — including a secured credit facility, $161M of 5.25% convertible notes and preferred-stockholder obligations — and warns that insufficient assets to repay could affect its ability to continue as a going concern.

“in full, which could have a material adverse effect on our ability to continue to operate as a going concern.”

Several key raw materials and components for T1's PV solar module and cell production are single-sourced or sourced from a limited number of suppliers, risking manufacturing delays and margin pressure.

“Several of our key raw materials and components are either single-sourced or sourced from a limited number of suppliers, and their failure to perform could cause manufacturing delays and impair our ability to deliver PV solar modules or solar cells to customers in the required quality and quantities and at prices that are profitable to us.”