Edison International and SCE have agreed to provide indemnification through contracts entered into in the normal course of business. These are primarily indemnifications against adverse litigation outcomes in connection with underwriting agreements, indemnities for specified environmental liabilities and income taxes or other contractual arrangements. Edison International's and SCE's obligations under these agreements may or may not be limited in terms of time and/or amount, and in some instances Edison International and SCE may have recourse against third parties. Edison International and SCE have not recorded a liability related to these indemnities. The overall maximum amount of the obligations under these indemnifications cannot be reasonably estimated.

In addition to the matters disclosed in these Notes, Edison International and SCE are involved in other legal, tax, and regulatory proceedings before various courts and governmental agencies regarding matters arising in the ordinary course of business, all of which are subject to uncertainties. Edison International and SCE believe the outcome of each of these other proceedings will not materially affect its financial position, results of operations and cash flows. Legal costs expected to be incurred by Edison International and SCE in connection with loss contingencies are expensed as incurred.

Numerous claims related to wildfire events have been initiated against SCE and Edison International. Edison International and SCE have, or may, incur material losses in connection with the 2017/2018 Wildfire/Mudslide Events, the Other Wildfire Events that are described below, and the January 2025 Eaton Fire. Of the Other Wildfire Events described below, only the 2017 Creek Fire ignited prior to the adoption of AB 1054 in July 2019. SCE's equipment has been, and may further be, alleged to be associated with other wildfires that have originated in Southern California, and SCE's service area remains susceptible to additional wildfire activity.

The extent of legal liability for wildfire-related damages in actions against utilities depends on a number of factors, including whether the utility substantially caused or contributed to the damages and whether parties seeking recovery of damages will be required to show negligence in addition to causation. California courts have previously found utilities to be strictly liable for property damage along with associated interest and attorneys' fees, regardless of fault, by applying the theory of inverse condemnation when a utility's facilities were determined to be a substantial cause of a wildfire that caused the property damage. If inverse condemnation is held to be inapplicable to SCE in connection with a wildfire, SCE still could be held liable for property damages and associated interest if the property damages were found to have been proximately caused by SCE's negligence. If SCE were to be found negligent, SCE could also be held liable for, among other things, fire suppression costs, business interruption losses, evacuation costs, clean-up costs, medical expenses, and personal injury/wrongful death claims, including claims for non-economic damages. Additionally, SCE could potentially be subject to fines and penalties for alleged violations of CPUC rules and state laws investigated in connection with the ignition of a wildfire.

While investigations into the cause of a wildfire event are conducted by one or more fire agencies, fire agency findings do not determine legal causation of or assign legal liability for a wildfire event. Final determinations of legal causation and liability for wildfire events, including determinations of whether SCE was negligent, would only be made during lengthy and complex litigation processes, and settlements may be reached before determinations of legal liability are ever made. Even when investigations are still pending or legal liability is disputed, an assessment of likely outcomes, including through future settlement of claims, may require estimated losses to be accrued under accounting standards.

Each reporting period, management reviews its loss estimates for remaining alleged and potential claims related to wildfire events. The process for estimating losses associated with alleged and potential wildfire-related claims requires management to exercise significant judgment based on a number of assumptions and subjective factors, including, but not limited to: volume of claims, damages asserted and associated loss, opinions of counsel regarding litigation risk, the status of and developments in the course of litigation, prior experience litigating and settling wildfire litigation claims, the amount of insurance that may offset losses, and estimating contributory liabilities from third parties who may be responsible for portions of loss.

Estimated losses for wildfire litigation are based on a number of assumptions and are subject to change as additional information becomes available. As additional information becomes available, management's estimates and assumptions regarding the causes and financial impact of wildfire events may change. Actual losses incurred may be higher or lower than estimated based on several factors, including the uncertainty in estimating damages that have been or may be alleged and uncertainty in estimating settlement outcomes. For instance, SCE receives additional information with respect to damages claimed as claims mediation and trial processes progress. Other factors that can cause actual losses incurred to be higher or lower than estimated include the ability to reach settlements and the outcomes of settlements reached through claims mediation processes, uncertainties related to the impact of outcomes of wildfire litigation against other parties and increasingly negative jury sentiments in general litigation, uncertainties related to the sufficiency of insurance held by plaintiffs and potential plaintiffs, uncertainties related to litigation processes, including whether potential plaintiffs will ultimately pursue claims, uncertainty as to the legal and factual determinations to be made during litigation, including uncertainty as to the contributing causes of wildfire events, and the uncertainty as to how these factors impact future settlements.

Wildfires in SCE's service area in December 2017 and November 2018 caused loss of life, substantial damage to both residential and business properties, and service outages for SCE customers. The investigating government agencies, the Ventura County Fire Department ("VCFD") and CAL FIRE, have determined that the largest of the 2017 fires in SCE's service area originated on December 4, 2017, in the Anlauf Canyon area of Ventura County, followed shortly thereafter by a second fire that originated near Koenigstein Road in the City of Santa Paula. According to CAL FIRE, the Thomas and Koenigstein Fires, collectively, burned over 280,000 acres, destroyed or damaged an estimated 1,343 structures and resulted in two confirmed fatalities. The largest of the November 2018 fires in SCE's service area, the Woolsey Fire, originated in Ventura County. According to CAL FIRE, the Woolsey Fire burned almost 100,000 acres, destroyed an estimated 1,643 structures, damaged an estimated 364 structures and resulted in three confirmed fatalities. Four additional fatalities are alleged to have been associated with the Woolsey Fire.

Multiple lawsuits related to the Thomas and Koenigstein Fires and the Woolsey Fire have been initiated against SCE and Edison International. Some of the Thomas and Koenigstein Fires lawsuits claim that SCE and Edison International have responsibility for the damages caused by debris flows and flooding in Montecito and surrounding areas in January 2018 based on a theory alleging that SCE has responsibility for the Thomas and/or Koenigstein Fires and further alleging that the Thomas and/or Koenigstein Fires proximately caused the Montecito Mudslides. According to Santa Barbara County initial reports, the Montecito Mudslides destroyed an estimated 135 structures, damaged an estimated 324 structures, and resulted in 21 confirmed fatalities, with two additional fatalities presumed but not officially confirmed.

The lawsuits related to the 2017/2018 Wildfire/Mudslide Events naming SCE as a defendant have been filed by three categories of plaintiffs: individual plaintiffs, subrogation plaintiffs and public entity plaintiffs. A number of the lawsuits also name Edison International as a defendant and some of the lawsuits were filed as purported class actions. As of April 21, 2026, in addition to the outstanding claims of approximately 70 individual plaintiffs, there were alleged and potential claims of certain public entity plaintiffs, including CAL OES, outstanding. SCE has settled all fire suppression claims and subrogation plaintiffs' claims related to the 2017/2018 Wildfire/Mudslide Events, except for one indemnification claim.

In January 2019, SCE filed a cross-complaint against certain local public entities alleging that failures by these entities, such as failure to adequately plan for flood hazards and build and maintain adequate debris basins, roads, bridges and other channel crossings, among other things, caused, contributed to or exacerbated the losses that resulted from the Montecito Mudslides. Once SCE has settled all individual plaintiff claims in the TKM litigation that impact the corresponding cross-claims, SCE intends to appeal certain procedural issues to maintain its ability to pursue the cross-claims.

The litigation could take a number of years to be completely resolved because of the complexity of the matters and number of plaintiffs. As of April 21, 2026, SCE has entered into settlements with approximately 13,800 individual plaintiffs in the 2017/2018 Wildfire/Mudslide Events litigation. The statutes of limitations for individual plaintiffs in the 2017/2018 Wildfire/Mudslide Events have expired.

In October 2021, SCE and the SED executed an agreement to resolve the SED's investigations into the 2017/2018 Wildfire/Mudslide Events and three other 2017 wildfires for, among other things, aggregate costs of $550 million. The $550 million in costs was composed of a $110 million fine to be paid to the State of California General Fund, $65 million of shareholder-funded safety measures, and an agreement by SCE to waive its right to seek cost recovery in CPUC-jurisdictional rates for $125 million and $250 million of third-party uninsured claims payments (and related financing costs) in the TKM litigation and the Woolsey Fire litigation, respectively. The SED Agreement provides that SCE may, on a permanent basis, exclude from its ratemaking capital structure any after-tax charges to equity or debt borrowed to finance costs incurred under the SED Agreement. The SED Agreement also imposes other obligations on SCE, including reporting requirements and safety-focused studies. SCE did not admit imprudence, negligence, or liability with respect to the 2017/2018 Wildfire/Mudslide Events in the SED Agreement.

SCE has settled substantially all of the claims that were filed against it related to the 2017 Creek Fire, the 2020 Bobcat Fire, and the 2020 Silverado Fire and does not expect to incur additional losses in excess of amounts accrued for each such fire. While Edison International and SCE may incur material losses in excess of the amounts accrued for certain of the Other Wildfire Events, Edison International and SCE expect that additional losses incurred in connection with any such fire, will be covered by insurance, subject to self-insured retentions and co-insurance, and expect that any such additional losses after expected recoveries from insurance and through electric rates will not be material.

The "Saddle Ridge Fire," originated in Los Angeles County in October 2019 and burned approximately 9,000 acres, destroyed an estimated 19 structures, damaged an estimated 88 structures, and resulted in one fatality and injuries to eight firefighters. In August 2023, SCE received a signed report of investigation from the LAFD, in which the LAFD stated with respect to the Saddle Ridge Fire that the cause of ignition was unintentional, the form of heat was undetermined, the item first ignited was undetermined and the material type first ignited was undetermined. The LAFD report noted that no other competent ignition sources other than SCE's transmission lines were found in the specific origin area of the Saddle Ridge Fire. The SED conducted an investigation with respect to the Saddle Ridge Fire and issued an undated report listing alleged violations of CPUC General Orders by SCE and noting that the alleged violations, under certain circumstances, could have led to a fire ignition. Multiple lawsuits related to the Saddle Ridge Fire were filed by plaintiffs naming SCE as defendant. An inverse condemnation bench trial in the Saddle Ridge Fire litigation has been set for October 2026. SCE has accrued charges for potential losses relating to the Saddle Ridge Fire.

The "Coastal Fire" originated in Orange County in May 2022 and burned approximately 200 acres. The Orange County Fire Authority ("OCFA") has reported that the Coastal Fire destroyed 20 residential structures and damaged 11 residential structures. Two firefighters also reportedly sustained minor injuries. In addition, fire authorities have estimated suppression costs at approximately $3 million. While SCE's investigation remains ongoing, SCE's information reflects that a SCE circuit in the area experienced an anomaly (a relay) approximately 2 minutes prior to the reported time of the fire. An investigation into the cause of the Coastal Fire was led by the OCFA. The OCFA has retained SCE equipment in connection with its investigation. In September 2024, SCE received a report of investigation from the OCFA, in which the OCFA finds that the Coastal Fire was unintentionally caused by sparks from overhead SCE electrical equipment igniting vegetation under the equipment. The SED is conducting an investigation with respect to the Coastal Fire and issued a notice of violation in 2025. SCE has settled subrogation plaintiff claims and claims brought by the County of Orange related to the Coastal Fire. Individual plaintiffs have also filed complaints against SCE related to the Coastal Fire. As of April 21, 2026, no trials are scheduled in the Coastal Fire litigation. SCE expects to obtain and review additional information and materials in the possession of third parties during the course of its internal reviews and the litigation process. SCE has accrued charges for potential losses relating to the Coastal Fire.

The "Fairview Fire" originated in Riverside County in September 2022 and burned approximately 28,000 acres. CAL FIRE has reported that the Fairview Fire destroyed 22 residential structures, damaged five residential structures, and destroyed or damaged 17 minor structures. CAL FIRE also reported two civilian fatalities, one civilian injury and two injuries to responding fire personnel. In addition, fire authorities have estimated suppression costs at $39 million. While SCE's investigation remains ongoing, SCE's information reflects that an SCE circuit in the area experienced an anomaly (a relay) approximately 8 minutes prior to the reported start time of the fire. In November 2023, SCE received a report of investigation conducted by CAL FIRE, in which CAL FIRE finds that the Fairview Fire was caused when a sagging SCE electrical conductor came in contact with a communication line, causing sparks to fall and ignite surrounding vegetation. In March 2025, the SED issued a citation for approximately $2 million for alleged violations of the SED's rules and regulations, including SCE's failure post-fire to comply with clearance requirements with respect to its electrical conductor. SCE has settled subrogation plaintiff claims related to the Fairview Fire. A jury trial in the Fairview Fire individual plaintiff litigation has been set for June 2026. SCE expects to obtain and review additional information and materials in the possession of third parties during the course of its internal reviews and the litigation process. SCE has accrued charges for potential losses relating to the Fairview Fire.

In January 2025, several wind-driven wildfires impacted portions of SCE's service area, causing loss of life, substantial damage to both residential and business properties and service outages for SCE customers. One of the largest of these wildfires, the "Eaton Fire," ignited in SCE's service area in Los Angeles County and spread due to a number of contributing factors under conditions of an extreme Santa Ana windstorm.

CAL FIRE has reported that the Eaton Fire burned approximately 14,000 acres and resulted in 18 civilian fatalities and 9 fire personnel injuries/illnesses. An additional fatality has also been reported to be attributed to the Eaton Fire. In addition, according to preliminary information provided by CAL FIRE, the Eaton Fire destroyed approximately 6,018 single residence structures, 3,146 other minor structures, 96 multiple residences and 158 mixed commercial/residential and nonresidential commercial structures; and damaged approximately 750 residential structures, 260 other minor structures, 28 multiple residences and 35 mixed commercial/residential and nonresidential commercial structures. Fire authorities have estimated suppression costs at approximately $100 million.

The Los Angeles County Fire Department is leading the investigation into the origin and cause of the Eaton Fire, with the assistance of CAL FIRE, and has identified a preliminary area of origin of the fire. SCE has transmission facilities in the preliminary area of origin and the SED is conducting an investigation with respect to the Eaton Fire. Edison International and SCE are also aware of an ongoing investigation by the Los Angeles District Attorney's Office of the Eaton Fire for the purpose of determining whether any criminal violations have occurred. SCE could be subject to material fines, penalties, or restitution if it is determined that it failed to comply with applicable laws and regulations. SCE is not aware of any basis for felony liability with regards to the Eaton Fire.

Multiple lawsuits related to the Eaton Fire have been initiated against SCE. A number of the lawsuits also name Edison International as a defendant and some of the lawsuits were filed as purported class actions. As of April 21, 2026, SCE was aware of approximately 2,000 lawsuits related to the Eaton Fire: representing lawsuits by approximately 30,000 individual plaintiffs and also lawsuits by subrogation plaintiffs and public entity plaintiffs. A bellwether jury trial in the Eaton Fire litigation has been set for January 2027.

SCE's internal review into the facts and circumstances of the Eaton Fire is complex and ongoing. SCE's review includes ongoing inspections of its facilities and records and of third-party information and testing. While SCE has not conclusively determined that its equipment caused the ignition of the Eaton Fire, a viable explanation is that a de-energized idle SCE transmission facility in the preliminary area of origin was associated with the ignition of the fire and SCE is not aware of evidence pointing to another possible source of ignition. Absent additional evidence, SCE believes that it is likely that its equipment could have been associated with the ignition of the Eaton Fire and is pursuing settlement of claims through its Wildfire Recovery Compensation Program.

SCE has entered into settlements with insurance claimants and individual and business claimants under its Wildfire Recovery Compensation Program related to the Eaton Fire. In total, as of March 31, 2026, SCE had recorded $1.3 billion in losses related to these settlements. SCE also recorded expected recoveries from customer-funded self-insurance of $917 million, from the Wildfire Fund of $295 million, and through FERC electric rates of $70 million. See "—Settlement of Claims," "—Accrued Losses" and "—Recoveries" below for further details.

In light of pending litigation, it is probable that Edison International and SCE will incur additional material losses in connection with the Eaton Fire. Given, among other things, the complexities associated with estimating damages, the large number and varying types of claims and the interrelationship among the claims, uncertainties related to the sufficiency of insurance held by plaintiffs and potential plaintiffs, and uncertainties related to litigation processes and the Wildfire Recovery Compensation Program, Edison International and SCE are currently unable to reasonably estimate a range of losses that may be incurred in connection with the Eaton Fire.

1At March 31, 2026, current liabilities related to 2017/2018 Wildfire/Mudslide Events consisted of $6 million of settlements executed and $26 million of short-term payables under the SED Agreement. At December 31, 2025, current liabilities related to 2017/2018 Wildfire/Mudslide Events consisted of $6 million of settlements executed and $25 million of short-term payables under the SED Agreement.

2At March 31, 2026, long-term wildfire-related claims related to 2017/2018 Wildfire/Mudslide Events consisted of $14 million of long-term payables under the SED Agreement and $137 million of estimate of expected losses for remaining alleged and potential claims. At December 31, 2025, long-term wildfire-related claims related to 2017/2018 Wildfire/Mudslide Events consisted of $17 million of long-term payables under the SED Agreement and $144 million of estimate of expected losses for remaining alleged and potential claims.

Management reviews its loss estimates for remaining alleged and potential claims related to wildfire litigation quarterly. Edison International and SCE have accrued their best estimate of expected losses for remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events and at the low end of the estimated range of reasonably possible losses for the Other Wildfire Events as no amount within the range of reasonably possible losses for the Other Wildfire Events appears, at this time, to be a better estimate than any other amount within the range.

Edison International and SCE may incur a material loss in excess of amounts accrued in connection with the remaining alleged and potential claims related to the 2017/2018 Wildfire/Mudslide Events and Other Wildfire Events. Due to the number of uncertainties and possible outcomes related to the 2017/2018 Wildfire/Mudslide Events and Other Wildfire Events litigation, Edison International and SCE cannot estimate the upper end of the range of reasonably possible losses that may be incurred in connection with the 2017/2018 Wildfire/Mudslide Events or the Other Wildfire Events. The estimated losses for the 2017/2018 Wildfire/Mudslide Events do not include estimates of potential losses related to certain potential public entity plaintiff claims, including CAL OES's claim in the TKM litigation, for which the statute of limitations has been tolled, as losses from these alleged and potential claims are not estimable at this time.


	Three months ended March 31, 2026
(in millions)	Other Wildfire Events		Eaton Fire		Total
Wildfire-related claims	$	1	$	161	$	162
Reversal of expected recoveries from insurance and third parties	39		—		39

Expected recoveries from Wildfire Fund	—		(161)		(161)
Expected recoveries from CPUC customers	(47)		—		(47)
Expected recoveries from FERC customers	(3)		—		(3)
Total pre-tax (gain)/charge	(10)		—		(10)
Income tax expense/(benefit)	3		—		3
Total after-tax (gain)/charge	$	(7)	$	—	$	(7)


	Three months ended March 31, 2025
(in millions)	2017/2018 Wildfire/Mudslide Events		Other Wildfire Events		Total
Wildfire-related claims	$	—	$	21	$	21
Expected recoveries from insurance and third parties1	—		(82)		(82)


Expected (recoveries from)/refund to CPUC customers	(1,341)		44		(1,297)
Expected refund to FERC customers	—		3		3
Total pre-tax gain	(1,341)		(14)		(1,355)
Income tax expense	375		4		379
Total after-tax gain	$	(966)	$	(10)	$	(976)

In total, through March 31, 2026, SCE has recorded losses of $12.3 billion, expected recoveries from insurance and third parties of $2.8 billion, expected recoveries through electric rates of $3.6 billion, expected recoveries from customer-funded wildfire self-insurance of $0.9 billion, and expected recoveries from the Wildfire Fund of $0.3 billion related to the 2017/2018 Wildfire/Mudslide Events, the Other Wildfire Events, and the Eaton Fire. The after-tax net charges to earnings recorded through March 31, 2026, have been $3.4 billion.


	March 31, 2026
(in millions)	Other Wildfire Events		Eaton Fire		Total
Expected recoveries from customer-funded wildfire self-insurance	$	—	$	682	$	682
Long-term receivables from insurance and third parties	170		—		170
Long-term receivables from Wildfire Fund recoveries1	—		295		295
FERC-related balancing accounts	13		61		74
CPUC-regulatory assets	146		—		146
Total	$	329	$	1,038	$	1,367


	December 31, 2025
(in millions)	Other Wildfire Events		Eaton Fire		Total
Expected recoveries from customer-funded wildfire self-insurance	$	—	$	709	$	709
Long-term receivables from insurance and third parties	237		—		237
Long-term receivables from Wildfire Fund recoveries	—		134		134
FERC-related balancing accounts	20		70		90
CPUC-regulatory assets	96		—		96
Total	$	353	$	913	$	1,266

Edison International and SCE record a receivable for insurance recoveries when recovery of a recorded loss is determined to be probable. SCE has exhausted expected insurance recoveries related to the 2017/2018 Wildfire/Mudslide Events. Expected recoveries from insurance recorded for the Other Wildfire Events are supported by SCE's insurance coverage for multiple policy years. SCE exhausted self-insurance recoveries available for losses related to the Eaton Fire as a result of costs incurred and settlements entered into as of February 11, 2026.

For events that occurred in 2017 and early 2018, principally the Thomas and Koenigstein Fires and Montecito Mudslides, SCE had $1.0 billion of wildfire-specific insurance coverage, subject to a self-insured retention of $10 million per occurrence. For the Woolsey Fire, SCE had an additional $1.0 billion of wildfire-specific insurance coverage, subject to a self-insured retention of $10 million per occurrence. SCE recovered $2.0 billion from its insurance carriers in relation to the claims related to the 2017/2018 Wildfire/Mudslide Events and $18 million related to the Creek Fire. Additional insurance was not available for the Creek Fire because wildfire insurance for the period in which the fire was ignited was almost fully exhausted as a result of the TKM litigation.

Insurer cost and total cost for the July 1, 2022 through June 30, 2023 policy period was paid in premiums to EIS (see Note 16 for further information). Wildfire insurance premiums paid for the July 1, 2022 through June 30, 2023 policy period are being recovered through customer rates. As a result of an EIS insurance policy amendment, in the first quarter of 2025, EIS recorded a $50 million wildfire insurance expense (by utilizing the premiums already collected as discussed above), and SCE recorded the corresponding insurance recovery from EIS, which reduced expected WEMA recoveries. On the Edison International condensed consolidated statements of income, the EIS insurance expense is eliminated with SCE's insurance recovery from EIS.

In May 2023, the CPUC allowed SCE to establish an expanded self-insurance program for wildfire-related costs that will be funded through CPUC-jurisdictional rates, in lieu of obtaining wildfire liability insurance from the commercial insurance market. Beginning on July 1, 2023, SCE implemented its customer-funded wildfire self-insurance program. In 2023 and 2024, SCE collected $150 million and $300 million, respectively, through CPUC-jurisdictional rates in support of SCE's customer-funded wildfire self-insurance program.

In July 2024, the CPUC issued a decision in the 2025 GRC proceeding authorizing this self-insurance framework to continue through at least 2028, supporting a self-insurance fund of up to $1.0 billion per policy year. From 2025 through 2028, approximately $300 million would be collected annually, subject to revenue requirement adjustments, until a total available self-insurance accrual amount of $1.0 billion is achieved. In 2025, SCE collected $300 million through CPUC-jurisdictional rates in support of its customer-funded wildfire self-insurance program.

SCE has $1.0 billion of customer-funded self-insurance coverage available for wildfires ignited between January 1, 2026 and December 31, 2026 under its self-insurance program described below, subject to up to a maximum possible shareholder contribution of $12.5 million. SCE's self-insurance program meets its obligation to maintain reasonable insurance coverage under the California Wildfire Legislation for the January 1, 2026 through December 31, 2026 period.

When losses are accrued for wildfire-related claims for wildfires that occur between July 1, 2023 and the end of 2028, customer rates will be increased in subsequent years, as needed, to allow for full recovery of the amounts accrued up to $1.0 billion per policy year, subject to a shareholder contribution of 2.5% of any self-insurance costs ultimately paid exceeding $500 million in any policy year, up to a maximum contribution of $12.5 million per policy year. As a result of accrued losses related to the Eaton Fire, in April 2026 the CPUC approved SCE's request to adjust revenue requirements to be collected from customers from $274 million to $650 million for 2026. As of March 31, 2026, SCE collected $68 million through CPUC-jurisdictional rates for SCE's customer-funded wildfire self-insurance program and is authorized to collect an additional $429 million through December 31, 2026 with the remaining $153 million expected to be collected in 2027, subject to regulatory balancing account adjustments.

Under accounting standards for rate-regulated enterprises, SCE defers costs as regulatory assets in the period it concludes that such costs are probable of future recovery in electric rates. The CPUC and FERC may not allow SCE to recover uninsured losses through electric rates, including by FERC requiring refund of amounts recovered, if it is determined that such losses were not prudently incurred. SCE utilizes objectively determinable evidence to form its view on the probability of future recovery and refund.

The only precedent in which a California investor-owned utility sought recovery for uninsured wildfire claims related costs and the CPUC made a prudency determination is SDG&E's requests for cost recovery related to 2007 wildfire activity, where the FERC allowed recovery of all FERC-jurisdictional wildfire claims related costs while the CPUC rejected recovery of all CPUC-jurisdictional wildfire claims related costs based on a determination that SDG&E did not meet the CPUC's prudency standard ("SDG&E Decision"). The SDG&E Decision is evidence of a California investor-owned utility seeking recovery for uninsured wildfire-related costs and FERC allowing recovery of all FERC-jurisdictional wildfire-related costs while the CPUC rejected recovery of all CPUC-jurisdictional wildfire-related costs based on a determination that the utility did not meet the CPUC's prudency standard.

Under the TKM Settlement Agreement approved by the CPUC in January 2025, SCE is authorized to recover 60%, or approximately $1.6 billion, of approximately $2.7 billion of losses, consisting of approximately $1.3 billion of uninsured claims paid as of May 31, 2024 and $0.3 billion of associated costs, composed of legal fees and financing costs incurred as of May 31, 2024 and estimated ongoing financing costs. SCE is also authorized to recover 60% of claims paid and related costs incurred after May 31, 2024, other than for $125 million of uninsured claims and related financing costs which SCE waived its right to seek recovery of under the SED Agreement. As a result, in 2025, SCE recorded a regulatory asset for recoveries authorized under the TKM Settlement Agreement. SCE was also authorized to recover approximately

Under the Woolsey Settlement Agreement approved by the CPUC in December 2025, SCE is authorized to recover 35%, or approximately $2.0 billion, of approximately $5.6 billion of losses, consisting of approximately $1.6 billion of uninsured claims paid as of May 31, 2025, and $0.4 billion of costs, comprised of legal costs paid as of May 31, 2025, and estimated ongoing financing costs. SCE is also authorized to recover 35% of losses paid after May 31, 2025. SCE’s requests for recovery exclude $250 million of uninsured claims and related financing costs which SCE waived its right to seek recovery of under the SED Agreement. As a result, in 2025, SCE recorded a regulatory asset for recoveries authorized under the Woolsey Settlement Agreement. SCE was also authorized to recover approximately $71 million of approximately $84 million in incremental restoration costs, inclusive of operations and maintenance expenses, incurred related to the Woolsey Fire.

In the Woolsey Settlement Agreement, SCE also waived its right to seek recovery of uninsured losses tracked in a Wildfire Expense Memorandum Account and incurred in connection with fires that ignited prior to July 12, 2019, the date AB 1054 was adopted, including the Creek Fire. SCE estimates that the waived pre-AB 1054 losses are approximately $157 million.

The SDG&E Decision was prior to the adoption of AB 1054 on July 12, 2019, after which date AB 1054 clarified that the CPUC must find a utility to be prudent if the utility's conduct related to the ignition was consistent with actions that a reasonable utility would have undertaken in good faith under similar circumstances, at the relevant point in time, and based on the information available at that time. Further, utilities with a valid safety certification at the time of the relevant wildfire will be presumed to have acted prudently related to a wildfire ignition unless a party in the cost recovery proceeding creates serious doubt as to the reasonableness of the utility's conduct, at which time, the burden shifts back to the utility to prove its conduct was prudent.

The Eaton Fire and each of the Other Wildfire Events discussed above, with the exception of the Creek Fire, was ignited after July 12, 2019, and SCE has held a valid safety certification since July 15, 2019. While a California investor-owned utility has not yet received a decision on a prudency review related to recovery for uninsured claims and other costs related to wildfires ignited after the adoption of AB 1054, SCE believes that for fires ignited after July 12, 2019, and for investor-owned utilities holding a safety certification at the time of the fire, the CPUC will apply a standard of review similar to that applied by the FERC which presumes all costs requested by an investor-owned utility are reasonable and prudent unless serious doubt as to the reasonableness of the utility's conduct is created. As such, SCE has concluded, at this time, that uninsured CPUC-jurisdictional wildfire-related costs related to wildfire events occurring after the adoption of AB 1054 that it has deferred as regulatory assets are probable of recovery through electric rates. SCE will continue to evaluate the probability of recovery based on available evidence, including regulatory decisions. Evidence that SCE may consider in its evaluation includes, among other factors, its status as a holder of a valid safety certification, the legislative intent of AB 1054, facts and other evidence known to date related to the ignition, and any regulatory decisions on wildfire cost recovery, including those illustrating the interpretation and/or application of the prudency framework under the California Wildfire Legislation. The CPUC may not allow SCE to recover uninsured losses related to the wildfire events through electric rates if it is determined that such losses were not prudently incurred.

Through the operation of its FERC Formula Rate, and based upon the precedent established in SDG&E's recovery of FERC-jurisdictional wildfire-related costs, SCE believes it is probable it will recover its FERC-jurisdictional costs related to the 2017/2018 Wildfire/Mudslide Events, the Other Wildfire Events, and the Eaton Fire. In total, as of March 31, 2026, SCE's recoveries received since inception, and expected to be received through FERC electric rates, were $440 million related to the 2017/2018 Wildfire/Mudslide Events, $23 million related to the Other Wildfire Events, and $70 million related to the Eaton Fire. FERC recoveries are subject to refund, and SCE will continue to evaluate the probability of recovery and refund obligations of FERC-jurisdictional costs related to the 2017/2018 Wildfire/Mudslide Events, the Other Wildfire Events, and the Eaton Fire based on available evidence, including any FERC decisions to allow or disallow recovery of FERC-jurisdictional wildfire-related costs based on a state regulator's decision on whether to permit recovery of related costs.

SCE has advised the administrator of the Wildfire Fund that it anticipates seeking reimbursement of eligible claims arising from the Eaton Fire from the Initial Account and the administrator has confirmed that the Eaton Fire is a "covered wildfire" for purposes of accessing the Initial Account. SCE will be reimbursed for losses incurred in excess of $1.0 billion for eligible claims for third-party damages related to the Eaton Fire from the Initial Account, subject to approval of the fund

administrator and the Initial Account's claims-paying capacity. The fund administrator has reported that, as of September 30, 2025, the fund's claim paying capacity for the Eaton Fire exceeds $21 billion. Edison International and SCE record a receivable for recoveries from the Wildfire Fund when recovery of a recorded loss from the fund is determined to be probable.

SCE will file an application with the CPUC for review of its costs and expenses related to the Eaton Fire after it has resolved all or, if authorized by the CPUC, substantially all third-party damage claims related to the fire, or upon earlier request of the fund administrator. The CPUC will determine the prudency of SCE's ignition-related conduct in a formal proceeding. If the CPUC finds that SCE's conduct related to the ignition of the Eaton Fire was not prudent, SCE will be required to reimburse the Initial Account only for amounts disallowed by the CPUC up to the applicable Liability Cap of approximately $4.3 billion, unless the fund administrator finds that SCE's actions or inactions relative to the ignition of the Eaton Fire constitute conscious or willful disregard of the rights and safety of others, in which case SCE will be required to reimburse the Initial Account for withdrawn amounts that the CPUC disallowed. For further discussion of SCE's reimbursement obligations see Note 1.

SCE records its environmental remediation liabilities when site assessments and/or remedial actions are probable and a range of reasonably likely cleanup costs can be estimated. SCE reviews its sites and measures the liability quarterly, by assessing a range of reasonably likely costs for each identified site using currently available information, including existing technology, presently enacted laws and regulations, experience gained at similar sites, and the probable level of involvement and financial condition of other potentially responsible parties. These estimates include costs for site investigations, remediation, operation and maintenance, monitoring, and site closure. Unless there is a single probable amount, SCE records the low end of this reasonably likely range of costs (reflected in "Other long-term liabilities") at undiscounted amounts as timing of cash flows is uncertain.

At March 31, 2026, SCE's recorded estimated minimum liability to remediate its 19 identified material sites (sites with a liability balance at March 31, 2026, in which the upper end of the range of expected costs is at least $1 million) was $217 million, including $147 million related to San Onofre. In addition to these sites, SCE also has 14 immaterial sites with a liability balance as of March 31, 2026, for which the total minimum recorded liability was $5 million. Of the $222 million total environmental remediation liability for SCE, $212 million has been recorded as a regulatory asset. SCE expects to recover $34 million through an incentive mechanism that allows SCE to recover 90% of its environmental remediation costs at certain sites (SCE may request to include additional sites in this mechanism) and $178 million through proceedings that allow SCE to recover up to 100% of the costs incurred at certain sites through customer rates. SCE's identified sites include several sites for which there is a lack of currently available information, including the nature and magnitude of contamination, and the extent, if any, that SCE may be held responsible for contributing to any costs incurred for remediating these sites. Thus, no reasonable estimate of cleanup costs can be made for these sites.

The ultimate costs to clean up SCE's identified sites may vary from its recorded liability due to numerous uncertainties inherent in the estimation process, such as: the extent and nature of contamination; the scarcity of reliable data for identified sites; the varying costs of alternative cleanup methods; developments resulting from investigatory studies; the possibility of identifying additional sites; and the time periods over which site remediation is expected to occur. SCE believes that, due to these uncertainties, it is reasonably possible that cleanup costs at the identified material sites and immaterial sites could exceed its recorded liability by up to $98 million and $2 million, respectively. The upper limit of this range of costs was estimated using assumptions least favorable to SCE among a range of reasonably possible outcomes.

SCE expects to clean up and mitigate its identified sites over a period of up to approximately 35 years, though some sites may require a longer time period. Remediation costs for each of the next five years are expected to range from $7 million to $21 million. Costs incurred for the three months ended March 31, 2026 and 2025 were $2 million and $4 million, respectively, and were included in the "Operation and maintenance" expense on Edison International's and SCE's condensed consolidated statements of income.

Based upon the CPUC's regulatory treatment of environmental remediation costs incurred at SCE, SCE believes that costs ultimately recorded will not materially affect its results of operations, financial position, or cash flows. There can be no assurance, however, that future developments, including additional information about existing sites or the identification of new sites, will not require material revisions to estimates.

to specified limits, and for accidental outages for active facilities. The amount of nuclear property damage insurance purchased for San Onofre and Palo Verde exceeds the minimum federal requirement of $50 million and $1.1 billion, respectively. If NEIL losses at any nuclear facility covered by the arrangement were to exceed the accumulated funds for these insurance programs, SCE could be assessed retrospective premium adjustments of up to approximately $15 million per year.

Federal law limits public offsite liability claims for bodily injury and property damage from a nuclear incident to the amount of available financial protection, which is currently approximately $560 million for San Onofre and $16.3 billion for Palo Verde. SCE and other owners of San Onofre and Palo Verde have purchased the maximum private primary insurance available through a Facility Form issued by American Nuclear Insurers. SCE withdrew from participation in the secondary insurance pool for San Onofre for offsite liability insurance effective January 5, 2018. Based on its ownership interests in Palo Verde, SCE could be required to pay a maximum of approximately $79 million per nuclear incident for future incidents. However, it would have to pay no more than approximately $12 million per future incident in any one year. Based on its ownership interests in San Onofre and Palo Verde prior to January 5, 2018, SCE could be required to pay a maximum of approximately $255 million per nuclear incident and a maximum of $38 million per year per incident for liabilities arising from events prior to January 5, 2018, although SCE is not aware of any such events.