Board of Directors

1. Governance Policies and Rules (G1-1, G1-10)

1.1 G1-1 Rules of the Board of Directors and Installed Committees

Chapter 1. General Provisions

Purpose and Scope of Application

These rules are intended to secure the operational efficiency of the Board of Directors, and matters other than those covered by relevant laws and the Articles of Incorporation are governed by these rules in priority.

Powers of the Board of Directors

The Board of Directors resolves on basic management policies and important matters concerning the execution of business, and supervises the execution of the duties of directors.

Chapter 2. Composition and Operation of the Board of Directors

Composition and Chairperson

The Board of Directors consists of all directors (including Independent (Outside) Directors), and the Co-CEO or one of the members of the Board of Directors serves as chairperson. If the Co-CEO is unable to act, the duties are performed by a successor in a predetermined order.

Types of Board Meetings and Convening

Regular meetings of the Board of Directors are held once per half year, and extraordinary meetings may be held from time to time as necessary. They are convened by the Co-CEO; if not convened without justifiable reason, an individual director may convene the meeting alone.

Convening Procedure

The meeting date is fixed and notice is given to directors and the Statutory Auditor no later than 2 days in advance. However, the convening procedure may be omitted with the consent of all directors and the Statutory Auditor.

Chapter 3. Decision-Making

Method of Resolution

Resolutions of the Board of Directors are passed with the attendance of a majority and the affirmative vote of a majority of attending directors. For specific matters such as self-dealing, the affirmative vote of two-thirds or more of the directors is required. Remote meetings are permitted, and interested parties may not exercise voting rights on the relevant agenda item.

Chapter 4. Agenda Items

Classification of Resolution Items

·       Resolution items under laws and the Articles of Incorporation

Appointment and dismissal of the Co-CEO, establishment of committees, issuance of new shares and corporate bonds, mergers and divisions, grant of stock options, acquisition and disposal of assets, etc.

·       Items to be submitted to the General Meeting of Shareholders

Convening the General Meeting of Shareholders, approval of financial statements, amendment of the Articles of Incorporation, dissolution and merger, appointment of directors and Statutory Auditor, dividends, release of liability, etc.

·       Major management items

Approval of business plans, determination of executive compensation, enactment and amendment of company rules, policies relating to labor unions, filing of important lawsuits, etc.

·       Financial matters

Acquisition of equity exceeding a certain percentage of capital, conclusion of major contracts, raising of funds, disposal of assets, acts related to treasury stock, etc.

Reporting Items

Management strategy, status of new businesses, status of internal control, results of handling of delegated matters, matters related to industrial safety, retirement of unregistered executives, etc.

Chapter 5. Committee-Related Matters

Establishment of Committees

For efficient decision-making, the Board of Directors may establish committees. However, core matters such as the appointment of the Co-CEO may not be delegated. A committee consists of two or more members and elects a representative member; detailed operations are governed by separate rules.

i-SENS operates its Board of Directors as a five-director system (3 Inside Directors, 2 Independent (Outside) Directors) based on the Commercial Act, the Articles of Incorporation, and the Board Operating Rules, deliberating and resolving on basic management policies and important matters concerning the execution of business, and supervising the execution of the duties of directors. No separate committee is established; sustainability management agenda items are reviewed in advance through the ESG Council (chaired by Co-CEO Hak-Hyun Nam) and the Ethics Management Office ESG Task Force, and are finally decided by the Board of Directors. In 2025, the Board of Directors was held a total of 10 times, and 23 agenda items were reported and resolved.

1.2 Skeleton of the Five-Chapter Board Operating Rules (G1-10)

The Board of Directors operates the balance between decision-making efficiency and checking functions in accordance with the Board Operating Rules. Regular Board meetings are held once per half year; extraordinary Board meetings are held as needed, with notice given to directors and the Statutory Auditor no later than 2 days before the meeting date. Resolutions are passed on the principle of a majority attendance + affirmative vote of a majority of attending directors; however, the affirmative vote of two-thirds or more is required for specific matters such as self-dealing. Remote meetings are permitted, and interested parties are restricted from exercising voting rights on the relevant agenda item.

2. Governance Structure and Composition (G2-1, G2-2, G2-7, G2-8)

The Board of Directors is composed of 3 Inside Directors (Co-CEO Geun-Sik Cha, Co-CEO Hak-Hyun Nam, and CFO Jong-Woo Yoon) and 2 Independent (Outside) Directors (Hong Lee, Jae-Joon Yang), for a total of 5 members. It operates under a Co-CEO system, with one of the Co-CEOs serving as chairperson. The largest shareholder is Co-CEO Geun-Sik Cha, with a shareholding ratio of 11.05%; transactions between the largest shareholder and specially related persons and the Company are disclosed in the business report.

Board diversity (G2-7): 5 male, 0 female; 5 aged 50 or older; 0 persons with disabilities; 0 foreign nationals. Number of Independent (Outside) Directors (G2-8): 2 (40% of the total 5). Independent (Outside) Directors perform the supervisory function on tenure pursuant to Article 542-8(2)7 of the Commercial Act and Article 34(5)7 of the Enforcement Decree thereof.

2.1 Status of Committee Operations (G2-3, G2-4, G2-5, G2-6)

Pursuant to Article 40-2 of the Articles of Incorporation, the Board of Directors may establish committees such as the Audit Committee, the Independent (Outside) Director Candidate Recommendation Committee, and the Compensation Committee, but currently no separate committee is constituted or operated. Instead, the following complementary mechanisms are in operation.

3. Governance Operating Performance — 2025 Board Meetings (G1-5, G3-4)

In 2025, the Board of Directors was held 10 times in total, combining regular and extraordinary meetings, and 23 agenda items were reported and approved. At the February 24, 2025 Board meeting, in addition to agenda items related to the Regular General Meeting of Shareholders, eight items of the 2025 ESG Action Plan were reported (Board resolution of ESG materiality, goals, and strategy · climate and carbon neutrality strategy · website disclosure · KPI establishment · SHE targets · human rights impact assessment · information protection internal audit · compliance control (ISO 37001·37301) · documentation of communication with the external auditor).

2 resolution items + 4 reporting items = 6 core agenda items all conform to Chapter 4 (Agenda Items / classification of resolution and reporting items) of the Board Operating Rules. The Board of Directors operates ethics, compliance, and ESG governance through a three-pillar reporting structure of the Statutory Auditor + the Ethics Management Office + an external ESG specialist organization (ESG Credit). At the February 23, 2026 Board meeting, the ESG and compliance control evaluation report (G7-1) and the implementation results of the RPM corrective order will be formally reported.

3.1 Categories of Major Agenda Items

Independent (Outside) Director Opinions (G3-2): The number of agenda items on which Independent (Outside) Directors presented opposing or amending opinions during 2025 was 0. This means that the opinions of Independent (Outside) Directors were reflected at the review stage prior to the submission of agenda items, and agreement was reached before resolution.

4. Conflicts of Interest, Compensation, Cumulative Voting, and Incentives (G1-4, G1-7, G1-8, G3-7)

This section reconciles the executive compensation, etc. and the status of executives and employees, etc. items in the regular disclosures (i-SENS CIK 00550994) of the Electronic Disclosure System (DART) with the G1-7 compensation policy, G2-2 Board composition, and G3-7 non-financial performance–compensation linkage metrics of this report. The same figures are cited verbatim so that external stakeholders may cross-verify the DART disclosure with this report.

4.1 Compensation Limit and Payment Performance of Directors and the Statutory Auditor (G1-7 · Unit: KRW million)

The limit approved by the General Meeting of Shareholders is set in advance by resolution of the Regular General Meeting of Shareholders, and actual payments are made within the limit through deliberation by the Personnel Committee chaired by the Co-CEO in accordance with the Executive Compensation Rules of the Board of Directors.

4.2 Compensation by Type of Director and Statutory Auditor (G1-7 · FY2025 · Unit: KRW million)

4.3 Personnel Composition of the Board of Directors and Statutory Auditor (G2-2 · As of the DART quarterly report base date of March 31, 2026)

*Changes (applied after the Regular General Meeting of Shareholders for FY2025): newly appointed Independent (Outside) Director Jae-Joon Yang (2025) and newly appointed Jung-Sup Shin (2026) — the Board composition for the base year of this report (2025) is a five-member system of Geun-Sik Cha, Hak-Hyun Nam, Jong-Woo Yoon, Hong Lee, and Jae-Joon Yang. At the Regular General Meeting of Shareholders held on March 25, 2026, replacement was effected with the expiration of the term of Independent (Outside) Director Hong Lee and the new appointment of Independent (Outside) Director Jung-Sup Shin.

5. ESG Impact Management and Performance Evaluation (G1-3, G1-6, G3-3, G3-6)

The ESG Council, chaired by Co-CEO Hak-Hyun Nam, is composed of C-Level executives and functional heads from R&D, sales, production, finance, and management support, and comprehensively reviews the economic, environmental, and social impacts of corporate activities and discusses and decides on major ESG issues. In operational terms, the ESG dedicated Task Force under the Ethics Management Office operates the framework of identification → analysis → evaluation → response and management of ESG risks. The Ethics Management Office reports the results of ESG risk and materiality assessments to the Board of Directors at least once a year, and the Sustainability Report is published on this basis.

Capacity building (G3-3): Reports to the ESG Council + company-wide ESG education enhance understanding of and capabilities for sustainable management. Board evaluation (G3-6): From 2027, the Company plans to evaluate the performance of the highest decision-making body for sustainable management through a Board evaluation. External assurance: independent consulting and evaluation conducted by an ESG institution (ESG Credit).

5.1 Risk Management Activity Reporting (G7-1)

At the Board of Directors meeting on February 23, 2026, the report on the operating status and evaluation of the internal accounting control system and the ESG and compliance control evaluation report were regularly carried out. The evaluating entities are the Statutory Auditor and the Ethics Management Office; the external auditor is Samjong Accounting Firm.