CORPORATE

GOVERNANCE

01.Overview of Corporate Governance

Basic Policy on Corporate Governance
Having adopted "Empower Data, Innovate the Business, Shape the Future" as its business vision, WingArc1st aims to realize a better society by adding value to data and bringing about innovation. On the basis of our "Build the Trust" concept, we have positioned "producing results that exceed the expectations of other parties" and "being trusted" as core values of the Group while working to achieve sustainable business development and improvements in corporate value. Essential to that goal is prompt decision making in response to changes in the business environment, ensuring management soundness, efficiency, and thorough legal compliance. We are therefore striving to establish an appropriate corporate governance system.

02.Organization Chart

The company has adopted its current corporate governance system (Organizational structure: Company with Audit & Supervisory Board) to ensure the transparency and soundness of its management and to accelerate decision-making. We have established an executive officer system to divide business execution functions and decision-making/supervision functions, as well as a Nomination and Compensation Committee composed mainly of independent outside directors to strengthen the supervisory functions over management.

Inside Director

Chairman (of the Board of Directors) Hiroyuki Uchino

Chairman (of the Board of Directors)
Hiroyuki Uchino

Mar. 2004 President of the Company
May 2018 Chairman of the Company
President Executive Officer and CEO Jun Tanaka

President
Executive Officer and CEO
Jun Tanaka

Sep. 2004 Joined the Company
May 2012 Director of the Company
May 2018 President, Executive Officer
May 2021 President, Executive Officer and CEO
Director, Executive Officer and CTO Ko Shimazawa

Director,
Executive Officer and CTO
Ko Shimazawa

Jul. 2009 Joined Four-Clue Inc. (now WingArc1st Inc.)
Apr. 2016 Executive Officer, CTO and General Manager of the Technical Headquarters of the Company
Mar. 2021 Executive Officer, in charge of Business Supervision and CTO of the Company
May 2021 Director of the Company
DDirector, Executive Officer and CFO Taisuke Fujimoto

Director,
Executive Officer and CFO
Taisuke Fujimoto

Aug. 2007 Joined WingArc1st Inc.
Mar. 2010 General Manager of the Finance and Accounting Department of the Company
Apr. 2016 Executive Officer, CFO and General Manager of Administrative Headquarters of the Company
May 2021 Director of the Company

Outside Director

Outside Director Kotaro Yamazawa

Outside Director
Kotaro Yamazawa

Reasons for appointment and other details

Outside Director Takao Yajima

Outside Director
Takao Yajima

Reasons for appointment and other details

Outside Director Shunsuke Okada

Outside Director
Shunsuke Okada

Reasons for appointment and other details

Outside Auditor

Outside Auditor Yoshitaka Asaeda

Outside Auditor
Yoshitaka Asaeda

Reasons for appointment and other details

Outside Auditor (Full-time) Shigeki Iwashita

Outside Auditor
(Full-time)
Shigeki Iwashita

Reasons for appointment and other details

Outside Auditor Kie Kobayashi

Outside Auditor
Kie Kobayashi

Reasons for appointment and other details

Skills Matrix

03.Outside Director Interview

Outside Directors Mr. Kotaro Yamazawa / Mr. Takao Yajima

Outside Director(Right)Mr. Kotaro Yamazawa

Outside Director(Left)Mr. Takao Yajima

Solid governance through a high degree of transparency and active discussions.
The Company is working on further improving corporate value in a rapidly changing industry.

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Evaluation of the Effectiveness of the Board of Directors

WingArc conducted an evaluation of the effectiveness of the Board of Directors through an external organization from October to November 2025. The evaluation objectives, methodology, and results are summarized as follows:

Objectives of the evaluation
To achieve the Company's vision, it is essential to make decisions quickly in response to changes in the business environment, ensure sound and efficient management, and comply thoroughly with laws and regulations. For this reason, we are committed to establishing an appropriate corporate governance system. We conduct an analysis and evaluation of the effectiveness of the Board of Directors to ensure that it can effectively fulfill its intended role.

Evaluation methodology
The evaluation of the Board of Directors for FY2026 was conducted through a survey of all directors. To ensure objectivity, we utilized an external organization to design the survey and conduct its analysis and evaluation. We confirmed the particulars considered important for the Board of Directors to effectively fulfill its role, such as the composition and management of the Board of Directors and deliberations regarding strategy. In addition, we also confirmed the Board's involvement in issues related to sustainability and other associated areas.

Results of the evaluation
The Board of Directors was highly evaluated for promoting active discussions under an executive structure well suited to the execution of management strategy, with Outside Directors providing constructive opinions from a medium- to long-term perspective. The Company also received strong recognition for improving the effectiveness of its whistleblowing system and for its sincere commitment to incorporating shareholder views.
At the same time, several areas for further improvement were identified, including stronger oversight by the Nomination and Compensation Committee, deeper discussion of the strategic rationale for M&A and stronger post-deal monitoring, and more substantial deliberation on medium- to long-term growth strategy beyond short-term reporting.
To address these issues, the Company will review the Board's agenda-setting process, shift toward giving greater priority to strategic discussions, make greater use of off-site meetings, and enhance director training. The Company will continue to address issues identified through effectiveness evaluations and further strengthen its governance framework.

04.Overview of Board Member's Compensation System

The Group's compensation system for directors and executive officers (hereafter, "directors") was established to fulfill two objectives:

  • to raise awareness of the contributions of managing directors and executive officers in expanding business performance and increasing medium to long-term corporate value
  • to fulfill appropriate governance functions towards the execution of business duties for non-managing directors.

Compensation System Compensation Table Applicable to Policy for Determining Compensation
Managing directors Non-managing directors
(a) Basic Compensation
Ratio in compensation:
50% to 80%
Table of Pre-determined Compensation Based on Duties Managing directors are paid a monthly pre-determined compensation based on the grade assigned to their duties in the execution of the business. Compensation for non-managing directors is determined through a comprehensive assessment of a director's social status, degree of contribution to the Company, and circumstances of appointment.
(b) Performance-based Bonus
Ratio in compensation:
15% to 25%*1
Quantitative assessment (80%)
Consolidated revenue: Consolidated profit for period
50%  :  50%
× Performance-based bonuses are paid once a year to managing directors (bonuses are not paid to non-managing directors). The calculation method for the bonus paid to each individual is stipulated in the rules established by the Nomination & Compensation Committee. In particular, bonuses for each managing director are based on an evaluation consisting of quantitative items, such as consolidated revenue and profit attributable to equity holders of the parent, and qualitative items relating to the execution of business duties. The standard ratio of quantitative to qualitative items in bonus evaluations is 8:2. This bonus ranges from 15% to 25% of an individual's total compensation (a+b+c), and is designed so that the higher an individual's position, the higher the ratio of the bonus.
Qualitative assessment (20%)
(c). Performance-based Stock Compensation
Ratio in compensation:
15% to 25%*1
Fixed grants (50%) × The objectives of performance-based stock compensation are to clarify the link between director compensation and the Group's performance, and to raise awareness of contributions to improving business performance and medium to long-term corporate value. Managing directors are paid annual "performance-based grants" based on the degree of achievement of performance targets, while non-managing directors are paid annual "fixed grants" based on their position. The indicators related to performance are consolidated revenue and consolidated EBITDA. This bonus ranges from 15% to 25% of an individual's total compensation (a+b+c), and is designed so that the higher an individual's position, the higher the ratio of the bonus. The shares granted under this system will be held continuously until one year has passed after a director's resignation.
Performance-based grants (50%)
Consolidated revenue: Consolidated EBITDA
50%  :  50%
×

*1 The higher an individual's position, the higher the ratio of the bonus.
*2 Neither (a) nor (b), nor (c) is paid to non-managing directors.

Actual Board Member's Compensation

05.Status of Shareholders

Shareholder Composition

Financial Institution Financial Services Provider Other
Corporation
Foreign Corporation Individual and Other Entity Total
Number of shareholders 13 26 37 174 3,749 3,999
Number of shares held 5,468,020 942,109 13,498,631 9,339,493 5,532,505 34,780,758
Ratio*2 15.72% 2.71% 38.81% 26.85% 15.91% 100.00%

*1 As of end February 2026
*2 The holding ratio is calculated after deducting treasury stock (228,712 shares).

Status of Majority Shareholders

Shareholder Name Number of shares held Ratio*2
IW.DX Partners Inc. 7,643,470 21.98%
Toshiba Corporation 4,604,700 13.24%
The Master Trust Bank of Japan, Ltd. (Trust Account) 2,448,400 7.04%
Custody Bank of Japan, Ltd. (Trust Account) 2,069,100 5.95%
Monolith LLP 1,400,000 4.03%
STATE STREET BANK AND TRUST COMPANY 505301 1,091,685 3.14%
NORTHERN TRUST CO.(AVFC) RE UKUC UCITS CLIENTS NON LENDING 10 PCT TREATY ACCOUNT 956,700 2.75%
BBH FOR FIDELITY LOW-PRICED STOCK FUND 619,537 1.78%
MSIP CLIENT SECURITIES 617,300 1.77%
Suzuyo & Co., Ltd. 537,300 1.54%
Others 12,792,566 36.78%
Grand total (excluding own stocks) 34,780,758 100.00%

*1 As of end February 2026
*2 The holding ratio is calculated after deducting treasury stock (228,712 shares).

06.Compliance & Risk Management

We are developing an internal compliance and risk management system and are carrying out various initiatives.

COMPLIANCE & RISK MANAGEMENT