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Governance

Governance System

Board of Directors Composition and Operation

SK Chemicals strengthens the oversight and balance functions of the board of directors over the management by separating the positions of the board of directors chairman and the CEO and stipulating that the majority of directors should be independent directors

Member of the Board of Directors

The board of directors resolves the company's basic management policies and major management matters. The board of directors consists of 2 internal directors, 4 independent directors, and 1 non-executive director.

이사회 구성 성명, 주요 경력 및 섬임배경, 선임일
Category Name Major Career and Background Appointment Date Term of Office
Internal Directors 안재현 (대표이사)

Ahn Jae-hyun (CEO)

Major Career
  • 2018.
    CEO & President of SK Construction Co., Ltd. Global Biz
  • 2019-2021.
    CEO & President of SK ecoplant Co., Ltd
  • 2021-2023.
    General President of SK discovery Co., Ltd.
  • 2023-Present.
    CEO and President of SK chemicals
    President of SK plasma
    executive director of SK bioscience
Senior Background
Served as CEO of SK Discovery, CEO of SK D&D, Head of SK Gas Management Support Division and Chairman of New Growth Energy, and CEO of SK Eco Plant. Led various investments and M&As, particularly successfully executed the transition of SK Eco Plant's business structure to environmentally friendly and new energy. Based on this experience, is expected to contribute to the acceleration of our green material and bio-centered portfolio construction and ESG management
2026.03.24 2026.03
       ~
2029.03
Park Hyun-seon (Head of Pharma Business)

Park Hyun-seon (Head of Pharma Business)

Major Career
  • 2020~2022.
    Head of R&D Center / Head of Sales, Yeonsung Fine Chemicals
  • 2022~2024.
    Head of Pharma Business Planning, SK Chemicals
  • 2024-Present.
    Head of Pharma Business, SK Chemicals
Senior Background
With a background in pharmacy, brings extensive experience in marketing, development, and strategy. Previously served as Head of Pharma Business Planning, with established expertise in the pharmaceutical and biotechnology sectors. Currently leads the Pharma Business, driving the advancement of core business areas while overseeing mid- to long-term strategy development and portfolio optimization, thereby contributing to the Company's sustainable growth.
2023.03.28 2023.03
       ~
2026.03
Independent Directors Park Tae-jin

Park Tae-jin (Board of Directors Chairman)

Major Career
  • 2007~2023.
    Head of JP Morgan Securities Seoul Branch
  • 2015~2023.
    Head of JP Morgan Korea and IB Division / Director of the Korea Ice Hockey Association
  • 2023~2024.
    Chairman of JP Morgan Korea / Vice Chairman of JP Morgan Asia-Pacific
  • 2025~Present.
    Advisor to the Management, Hyundai Card
Reason for Appointment
With over 20 years of experience in investment finance and having served as Chairman of JP Morgan Korea, Mr. Park brings expert insight and extensive practical experience, which is expected to enhance the expertise of the Board of Directors and Audit Committee.
2025.03.26 2025.03
       ~
2028.03
Lee Jung-seok

Lee jung-seok

Major Career
  • 2018~2020.
    Presiding Judge, Seoul High Court
  • 2020-Present.
    Managing Partner, Law Firm Yulwoo
  • 2023-Present.
    Independent Director, Union Materials
Senior Background
Served for approximately 24 years as a judge, culminating as Presiding Judge of the Seoul High Court. Currently serves as Managing Partner of a law firm, with extensive experience in litigation and legal advisory. Brings strong expertise that enhances the professionalism, independence, and diversity of the Board and Audit Committee, and provides valuable insight into legal risk assessment and management in business and investment decisions.
2026.03.24 2026.03
       ~
2029.03
Oh Sung-hoon

Oh Sung-hoon

Major Career
  • 2015~2019.
    Head of M&A Group, Deloitte Anjin LLC
  • 2019~2022.
    Head of Consumer Industry Sector, Deloitte Anjin LLC
  • 2024~2025.
    Head of Consulting Practice, Ashurst HwaHyun (Joint Venture Law Firm)
  • 2025~Present.
    CEO, Quantum Advisory Co., Ltd.
Senior Background
Certified Public Accountant with over 20 years of experience in audit, financial and tax advisory, and consulting. Held leadership roles at Deloitte Anjin and Deloitte Consulting Korea, providing end-to-end M&A services including opportunity identification, strategy development, and financial advisory across various industries. Contributes to strengthening the Board's and Audit Committee's expertise, independence, and diversity, with strong capabilities in financial risk assessment and decision-making support.
2026.03.24 2026.03
       ~
2029.03
최선미

Kim Sunmee Choi

Major Career
  • 2014-2016.
    Yonsei University International Office Deputy Diretor
  • 2020.7-2022.8
    Founding Dean of Vin University's School of Management, Vietnam
  • 2013-Present.
    Yonsei University Department of Business Adminstration
Senior Background
With a background as a professor in the Department of Business Adminstration at Yonsei University and diverse domestic and international activities, it is expected that Choi will contribute to the company's growth based on rich insights and experience. Also, it is anticipated that she will play a significant role in enhancing board diversity and ensuring transparency/independence of the audit committee
2024.03.26 2024.03
       ~
2027.03
Non-executive Director Son Hyun-ho

Son Hyun-ho

Major Career
  • 2016.
    Executive, Strategy Support Team, SUPEX Council
    Head of Finance Division 3, SK Inc.
  • 2020.
    Head of Strategy Support Team, SUPEX Council
  • 2024~현재.
    President & CEO, SK Discovery
Reason for Appointment
Mr. Son is a finance and strategic planning expert with extensive hands-on experience, having served as Head of Finance at SK Inc. and led the Strategy Support Team at the SUPEX Council.
2025.03.26 2025.03
       ~
2028.03
Board Committees

To enhance the operational efficiency and expertise of the board of directors, audit, independent director candidate recommendation, ESG, and personnel committees are established and operated under the board of directors.

  • Board of Directors

  • Audit Committee

    Performs business and accounting audits, reviews investment risks, and audits the execution of director duties

    감사위원회 위원장과 위원
    4 Independent Directors
    Chairman
    • Oh Sung-hoon
    Members
    • Park Tae-jin (Independent Director)
    • Lee Jung-seok (Independent Director)
    • Kim Sunmee Choi (Independent Director)
  • Independent Director Nominating Committee

    Transparent, professional, independent, and diverse recommendation of independent director candidates

    사외이사후보추천위원회 위원장, 위원
    2 Independent Director, 1 Non-executive Director
    Chairman
    • Lee Jung-seok
    Members
    • Kim Sunmee Choi (Independent Director)
    • Son Hyun-ho (Non-executive Director)
  • Internal Transactions Committee

    Prior review of related-party transactions with affiliates and other related parties

    내부거래위원회 위원장, 위원
    3 Independent Director
    Chairman
    • Oh Sung-hoon
    Members
    • Park Tae-jin (Independent Director)
    • Lee Jung-seok (Independent Director)
  • ESG Committee

    Decision-making on major ESG matters across management

    ESG위원회 위원장, 위원
    2 Independent Director, 1 Internal Director
    Chairman
    • Kim Sunmee Choi
    Members
    • Lee Jung-seok (Independent Director)
    • Ahn Jae-hyun (CEO)
  • Personnel Committee

    Review of the CEO's evaluation and tenure, examination of the adequacy of internal directors' compensation, and evaluation and determination of key executives' compensation

    인사위원회 위원장, 위원
    2 Independent Directors, 1 Non-executive Director
    Chairman
    • Park Tae-jin
    Members
    • Oh Sung-hoon (Independent Director)
    • Son Hyun-ho (Non-executive Director)
Board of directors Evaluation

SK Chemicals conducts a board of directors evaluation to enhance the efficient operation and governance improvement of the board of directors and its committees.

  • Development/Improvement Schedule and Method for Evaluation Criteria (Board of Directors Secretariat)

  • Pre-explanation and Guidance for Board of Directors Evaluation

  • Evaluation Implementation

    • Board of directors Evaluation: O
    • Committee Evaluation: O
    • Director Evaluation: X
  • Results Disclosure and Improvement Activities

  • Results Aggregation and Identification of Improvement Measures

  • Evaluation Purpose: Enhancement of board of directors function and governance improvement through activation and operational efficiency improvement of the board of directors
  • Evaluation Method: Conducted once a year (every 1st quarter) targeting independent directors using anonymous online board of directors and committee evaluations
  • Evaluation Contents: Evaluated on a 5-point scale and open-ended questions regarding the appropriateness, fidelity, sufficiency, effectiveness, etc., of the composition, roles, responsibilities, and operation of the board of directors and committees
  • Evaluation Results: The results are disclosed on the website and in the business report, and specific improvement measures will be disclosed in the future
Board of Directors Operation Self-Evaluation Results
이사회 운영 자체 평가 결과, 평가 연도별 이사회구성, 역할, 책임, 운영 위원회의 구성, 위원회의 역할/운영, 종합 평가
Evaluation Year Member of the Board of Directors Board of Directors Roles Board of Directors Responsibilities Board of Directors Operation Committee Composition Committee Roles/Operation Comprehensive Evaluation
2025 4.8 4.9 4.7 4.9 4.9 5.0 4.9
2024 4.9 4.9 4.9 4.8 4.9 5.0 4.9
2023 4.7 4.6 4.8 4.7 4.6 4.8 4.7
2022 4.8 4.6 4.8 4.7 4.6 4.5 4.7
2021 4.3 4.4 4.9 4.5 4 4.2 4.4
2020 4.3 4.3 4.4 4.3 3.9 4.3 4.3