Nitto Denko Corp.TSE: 6988

Annual Securities Report for the year ended March 31, 2026

· Issued by Nitto Denko Corp.

This document was prepared based on the Company's Annual Securities Report in Japanese submitted to the Director of the Kanto Local Finance Bureau via Electronic Disclosure for Investors' Network ("EDINET") on June 17, 2026, pursuant to the Financial Instruments and Exchange Act of Japan. In the event of any discrepancy between this translated document and the Japanese original, the original shall prevail. The accompanying consolidated financial statements are audited by KPMG AZSA LLC.

In this document, "fiscal 2026" refers to the year ended March 31, 2026. All information contained in this document is as of March 31, 2026 or for fiscal 2026, unless otherwise indicated. This document does not contain or constitute any guarantee and the Company will not compensate any losses and/or damage stemming from actions taken based on this document.

Annual Securities Report

Fiscal Year For the year ended March 31, 2026 (The 161st Business Term)

Nitto Denko Corporation

Table of Contents

Page

The 161st Annual Securities Report [Cover]

Part I.

Company Information

2

I.

Overview of the Company

2

1. Key Financial Data

2

2. History

6

3. Description of Business

8

4. Subsidiaries and Affiliates

10

II.

Overview of Business

14

1. Management Policy, Business Environment, and Challenge

14

2. Attitude and Initiatives toward Sustainability

22

3. Business Risks

36

4. Management Analysis of Financial Position, Operating Results, and Cash Flows

48

5. Material Contracts, etc.

53

6. Research and Development Activities

54

III.

Facilities

57

1. Overview of Capital Investment

57

2. Major Facilities

57

3. Planned Addition, Retirement, and Other Changes of Facilities

60

IV.

Information about Reporting Company

62

1. Company's Shares, etc.

62

2. Acquisition and Disposal of Treasury Shares

67

3. Dividend Policy

69

4. Corporate Governance

70

5. Employees, etc.

118

V.

Financial Information

121

1. Consolidated Financial Statements and Notes

122

Independent auditor's report

192

2. Non-consolidated Financial Statements and Notes

198

VI.

Outline of Share-related Administration of Reporting Company

212

VII.

Reference Information of Reporting Company

213

1. Information about Parent of Reporting Company

213

2. Other Reference Information

213

Part II.

Information about Reporting Company's Guarantor, etc.

215

(Translation) Independent Auditor's Report on the Financial Statements and Internal Control Over Financial Reporting 216

Internal Control Report 221

[Cover]

[Document Title] Annual Securities Report ("Yukashoken Hokokusho")

[Clause of Stipulation] Article 24, Paragraph 1 of the Financial Instruments and Exchange Act [Filed to] Director-General of the Kanto Local Finance Bureau

[Filing Date] June 17, 2026

[Fiscal Year] The 161st Business Term (from April 1, 2025 to March 31, 2026)

[Company Name] Nitto Denko Kabushiki Kaisha [Company Name in English] NITTO DENKO CORPORATION [Title and Name of Representative] Tatsuya Akagi, President-Director [Address of Registered Head office] 1-1-2, Shimohozumi, Ibaraki, Osaka

(The above is the registered address of head office, and business is actually conducted at the location below.)

Grand Front Osaka Tower A, 4-20, Ofuka-cho, Kita-ku, Osaka

[Telephone Number] +81-6-7632-2101

[Name of Contact Person] Yasuhiro Iseyama, CFO, Director

[Nearest Place of Contact] Grand Front Osaka, 4-20, Ofuka-cho, Kita-ku, Osaka [Telephone Number] +81-6-7632-2101

[Name of Contact Person] Kazunobu Takai, Manager of Accounting Dept. [Place for Public Inspection] Tokyo Sales Branch, Nitto Denko Corporation

Shinagawa Season Terrace,

1-2-70, Konan, Minato-ku, Tokyo

Nagoya Sales Branch, Nitto Denko Corporation Nagoya Hirokoji Bldg.,

2-3-1, Sakae, Naka-ku, Nagoya Tokyo Stock Exchange, Inc.

2-1, Nihombashi Kabutocho, Chuo-ku, Tokyo

Part I. Company Information

I. Overview of the Company

  1. Key Financial Data

    1. Consolidated financial data

      Fiscal Year

      International Financial Reporting Standards

      157th Term

      158th Term

      159th Term

      160th Term

      161st Term

      Year ended

      March 2022

      March 2023

      March 2024

      March 2025

      March 2026

      Revenue

      (Millions of yen)

      853,448

      929,036

      915,139

      1,013,878

      1,028,171

      Profit before income taxes (Millions of yen)

      132,378

      146,840

      138,901

      185,329

      184,976

      Net profit attributable to

      owners of the parent company

      (Millions of yen)

      97,132

      109,173

      102,679

      137,237

      133,498

      Comprehensive income attributable to owners of

      the parent company

      (Millions of yen)

      136,207

      137,078

      164,816

      132,783

      203,566

      Equity attributable to

      owners of the parent company

      (Millions of yen)

      821,192

      902,211

      984,020

      1,044,083

      1,148,027

      Total assets

      (Millions of yen)

      1,094,469

      1,153,647

      1,251,087

      1,321,920

      1,441,757

      Equity attributable to owners of the parent

      company per share

      (Yen)

      1,109.62

      1,236.60

      1,391.36

      1,502.42

      1,704.17

      Basic earnings per share

      (Yen)

      131.26

      147.75

      143.91

      195.74

      197.20

      Diluted earnings per share

      (Yen)

      131.20

      147.70

      143.86

      195.65

      197.11

      Ratio of equity attributable to owners of the parent

      company to total assets

      (%)

      75.0

      78.2

      78.7

      79.0

      79.6

      Return on equity attributable to owners of

      the parent company

      (%)

      12.6

      12.7

      10.9

      13.5

      12.2

      Price-earnings ratio

      (Times)

      13.4

      11.6

      19.2

      14.0

      15.5

      Cash flows from operating

      activities

      (Millions of yen)

      144,489

      181,702

      155,521

      217,908

      192,183

      Cash flows from investing

      activities

      (Millions of yen)

      (57,594)

      (159,906)

      (67,927)

      (115,105)

      (107,436)

      Cash flows from financing

      activities

      (Millions of yen)

      (36,639)

      (57,627)

      (90,784)

      (78,890)

      (106,597)

      Cash and cash equivalents

      at the end of the period

      (Millions of yen)

      362,046

      329,966

      342,269

      363,344

      359,805

      Number of employees

      25,961

      26,070

      25,300

      25,769

      26,477

      (Separately, average

      (Persons)

      number of temporary

      (2,425)

      (2,123)

      (1,934)

      (1,840)

      (1,683)

      workers)

      (Notes) 1. The Company has implemented the stock split with an effective date of October 1, 2024 and a record date of September 30, 2024. Each share of common stock has been split into five shares. The above equity attributable to owners of the parent company per share and basic, diluted earnings per share are based on the assumption that the stock split is conducted at the beginning of the 157th term.

  2. Figures are rounded down to the nearest million yen.

  3. Consolidated financial statements are prepared in accordance with the International Financial Reporting Standards (IFRS).

  4. Number of employees indicates the number of working employees.

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