March 31, 2026
Company name: KDDI CORPORATION Name of representative: Hiromichi Matsuda
Representative Director and President CEO (Securities code: 9433; TSE Prime Market)
Inquiries: Yasuo Nakazato, General Manager General Administration Division (Telephone: +81-3-3347-0077)
Notice Regarding Submission of Amended Reports for Prior Fiscal Year Securities Reports and Other Reports, and Corrections to Prior Fiscal Year Financial Results and Other Reports
KDDI CORPORATION (hereinafter referred to as "KDDI") hereby announces that, as of today, it has filed amended reports, including Annual Securities Reports, with the Kanto Local Finance Bureau, and has corrected certain Financial Statements Summaries, as described below.
Reason for and Details of the Corrections
As announced in the disclosure entitled "Notice Concerning the Identification of Suspicions Regarding Inappropriate Transactions at Our Consolidated Subsidiaries and the Establishment of a Special Investigation Committee" dated January 14, 2026, and the disclosure entitled "Progress Report on the "Notice Concerning the Identification of Suspicions Regarding Inappropriate Transactions at Our Consolidated Subsidiaries and the Establishment of a Special Investigation Committee" Dated January 14, 2026; and Notice on Holding of Fiscal Year Ending March 2026 Q3 Preliminary Results Explanation" dated February 6, 2026, suspicions were identified
regarding inappropriate transactions conducted by employees of BIGLOBE Inc., a consolidated subsidiary of KDDI, and its subsidiary, G-PLAN INC. (collectively, the "Subsidiaries"), in connection with their advertising agency business (the "Matter"). In light of the above, KDDI determined that it was necessary to conduct an investigation with a higher level of expertise and objectivity in order to clarify the facts and causes of the Matter. Accordingly, on January 14, 2026, KDDI established a Special Investigation Committee composed of external attorneys and certified public accountants and requested the Committee to (i) investigate the facts relating to the Matter, (ii) examine whether the Matter had any impact on KDDI's consolidated financial statements and, if so, the amount of such
impact, (iii) confirm whether similar cases exist, and (iv) analyze the causes of the Matter and provide recommendations for the prevention of recurrence.
Subsequently, as announced in the disclosure entitled "Receipt of the Investigation Report from the Special
Investigation Committee Regarding Suspicions of Inappropriate Transactions at Our Consolidated Subsidiaries and KDDI's Future Actions" dated March 31, 2026, inappropriate transactions were confirmed to have occurred in connection with the advertising agency business of the Subsidiaries. Based on these findings, KDDI has determined to amend certain reports that had already been filed or disclosed, including Annual Securities Reports and other
reports.
In addition, in connection with the above amendments, KDDI has also corrected certain items that had not been corrected in previously disclosed financial results because they were determined to be immaterial at the time of disclosure.
Amended Reports and Financial Statements Summaries Disclosed as of Today
Amended Annual Securities Reports
Annual Securities Report for the 39th Fiscal Year (from April 1, 2022 to March 31, 2023) Annual Securities Report for the 40th Fiscal Year (from April 1, 2023 to March 31, 2024) Annual Securities Report for the 41st Fiscal Year (from April 1, 2024 to March 31, 2025)
Amended Semiannual Reports
Semiannual Report for the 41st Fiscal Year (from April 1, 2024 to September 30, 2024) Semiannual Report for the 42nd Fiscal Year (from April 1, 2025 to September 30, 2025)
Amended Quarterly Reports
Quarterly Report for the 40th Fiscal Year, First Quarter (from April 1, 2023 to June 30, 2023) Quarterly Report for the 40th Fiscal Year, Second Quarter (from July 1, 2023 to September 30, 2023) Quarterly Report for the 40th Fiscal Year, Third Quarter (from October 1, 2023 to December 31, 2023)
Corrections to Financial Statements Summaries
Financial Statements Summary for the three-month period ended June 30, 2024 [IFRS] Financial Statements Summary for the nine-month period ended December 31, 2024 [IFRS] Financial Statements Summary for the Year ended March 31, 2025 [IFRS]
Financial Statements Summary for the three-month period ended June 30, 2025 [IFRS] Financial Statements Summary for the six-month period ended September 30, 2025 [IFRS]
Amount of Impact of the Corrections on Consolidated Financial Results
(unit: yen in millions)
Period | Item | Before Correction (A) | After Correction (B) | Amount of Impact (B-A) | Rate of change (%) |
Operating revenue | 5,671,762 | 5,630,024 | △41,738 | △0.7 | |
39th Fiscal Year | Operating income | 1,075,749 | 1,045,346 | △30,403 | △2.8 |
(FY ended March 2023) Full year | Profit for the period attributable to owners of the parent | 677,469 | 649,747 | △27,722 | △4.1 |
Total assets | 11,917,643 | 11,849,715 | △67,928 | △0.6 | |
Total equity | 5,664,780 | 5,600,358 | △64,422 | △1.1 | |
Operating revenue | 1,332,576 | 1,316,109 | △16,466 | △1.2 | |
40th Fiscal Year | Operating income | 266,668 | 264,946 | △1,723 | △0.6 |
(FY ended March 2024) First Quarter | Profit for the period attributable to owners of the parent | 176,943 | 175,185 | △1,758 | △1.0 |
Total assets | 12,173,341 | 12,101,426 | △71,916 | △0.6 | |
Total equity | 5,731,372 | 5,664,872 | △66,500 | △1.2 | |
Operating revenue | 2,778,967 | 2,741,275 | △37,692 | △1.4 | |
40th Fiscal Year | Operating income | 560,319 | 557,250 | △3,069 | △0.5 |
(FY ended March 2024) Second Quarter | Profit for the period attributable to owners of the parent | 368,695 | 365,513 | △3,182 | △0.9 |
Total assets | 12,858,776 | 12,783,229 | △75,546 | △0.6 | |
Total equity | 5,756,675 | 5,688,428 | △68,246 | △1.2 | |
Operating revenue | 4,265,531 | 4,219,979 | △45,552 | △1.1 | |
40th Fiscal Year | Operating income | 847,877 | 842,719 | △5,158 | △0.6 |
(FY ended March 2024) Third Quarter | Profit for the period attributable to owners of the parent | 545,593 | 540,262 | △5,331 | △1.0 |
Total assets | 13,456,032 | 13,375,503 | △80,529 | △0.6 | |
Total equity | 5,772,897 | 5,702,182 | △70,715 | △1.2 | |
Operating revenue | 5,754,047 | 5,699,724 | △54,324 | △0.9 | |
40th Fiscal Year | Operating income | 961,584 | 912,031 | △49,553 | △5.2 |
(FY ended March 2024) Full Year | Profit for the period attributable to owners of the parent | 637,874 | 600,281 | △37,593 | △5.9 |
Total assets | 14,146,060 | 14,054,762 | △91,298 | △0.6 | |
Total equity | 5,797,226 | 5,731,912 | △65,315 | △1.1 | |
Operating revenue | 1,389,138 | 1,373,856 | △15,283 | △1.1 | |
41st Fiscal Year | Operating income | 276,988 | 272,305 | △4,684 | △1.7 |
(FY ended March 2025) First Quarter | Profit for the period attributable to owners of the parent | 176,949 | 172,069 | △4,880 | △2.8 |
Total assets | 15,636,018 | 15,534,592 | △101,427 | △0.6 | |
Total equity | 5,792,851 | 5,722,282 | △70,569 | △1.2 |
Operating revenue | 2,855,713 | 2,821,320 | △34,393 | △1.2 | |
41st Fiscal Year | Operating income | 573,086 | 562,193 | △10,892 | △1.9 |
(FY ended March 2025) Second Quarter | Profit for the period attributable to owners of the parent | 351,202 | 339,894 | △11,309 | △3.2 |
Total assets | 15,808,645 | 15,695,455 | △113,190 | △0.7 | |
Total equity | 5,658,400 | 5,581,777 | △76,623 | △1.4 | |
Operating revenue | 4,364,195 | 4,308,539 | △55,656 | △1.3 | |
41st Fiscal Year | Operating income | 864,566 | 847,697 | △16,869 | △2.0 |
(FY ended March 2025) Third Quarter | Profit for the period attributable to owners of the parent | 536,531 | 519,004 | △17,527 | △3.3 |
Total assets | 16,284,389 | 16,156,689 | △127,700 | △0.8 | |
Total equity | 5,679,867 | 5,597,025 | △82,842 | △1.5 | |
Operating revenue | 5,917,953 | 5,835,525 | △82,428 | △1.4 | |
41st Fiscal Year | Operating income | 1,118,674 | 1,087,468 | △31,206 | △2.8 |
(FY ended March 2025) Full Year | Profit for the period attributable to owners of the parent | 685,677 | 655,416 | △30,262 | △4.4 |
Total assets | 16,876,219 | 16,714,708 | △161,511 | △1.0 | |
Total equity | 5,650,572 | 5,554,995 | △95,576 | △1.7 | |
Operating revenue | 1,436,328 | 1,415,734 | △20,594 | △1.4 | |
42nd Fiscal Year | Operating income | 272,540 | 259,473 | △13,067 | △4.8 |
(FY ended March 2026) First Quarter | Profit for the period attributable to owners of the parent | 171,122 | 160,069 | △11,053 | △6.5 |
Total assets | 17,594,339 | 17,414,028 | △180,311 | △1.0 | |
Total equity | 5,653,511 | 5,546,881 | △106,630 | △1.9 | |
Operating revenue | 2,963,161 | 2,916,005 | △47,156 | △1.6 | |
42nd Fiscal Year | Operating income | 577,156 | 555,004 | △22,153 | △3.8 |
(FY ended March 2026) Second Quarter | Profit for the period attributable to owners of the parent | 377,723 | 359,882 | △17,841 | △4.7 |
Total assets | 18,019,211 | 17,806,803 | △212,407 | △1.2 | |
Total equity | 5,475,126 | 5,361,708 | △113,417 | △2.1 |
In addition, with respect to the Data Books for prior periods, KDDI has corrected the portions corresponding to the above-mentioned amended Annual Securities Reports and other amended reports as well as the corrected Financial
Statements Summaries and has disclosed the revised detailed materials as an appendix hereto and on KDDI's website.