EDISON INTERNATIONAL

In December 2025, the CPUC issued a final decision on SCE's 2026 – 2028 cost of capital application that set SCE's ROE at 10.03%, and maintained SCE's current authorized capital structure, after CPUC-allowed exclusions, of 52% common equity, 43% long-term debt, and 5% preferred equity. Under the final decision, SCE's 2026 authorized cost of long-term debt and preferred equity are 4.71% and 6.89%, respectively. Based on the approved capital structure and costs, SCE's weighted average return on rate base for 2026 will be 7.59%. Based on the revenue requirement approved in SCE's 2025 GRC, the final decision will decrease SCE's revenue requirement in 2026 by approximately $51 million compared to the previously authorized cost of capital. The decision maintains the existing cost of capital adjustment mechanism. For information on the cost of capital adjustment mechanism, see "Business—SCE—Overview of Ratemaking Process."