Annual Large Business Group Status Disclosure (Q1, Individual) — Korea Circuit

Summary

Korea Circuit filed its annual Young Poong group status disclosure, reporting FY2025 standalone revenue of KRW 862.98 billion, operating profit of KRW 53.10 billion, and net income of KRW 42.19 billion, with a debt-to-equity ratio of 120.24%. The board approved a series of significant actions over the past year, including a KRW 70 billion industrial facility loan from KDB, a capital increase for Vietnamese subsidiary Korea Circuit Vina, acquisition of additional Teranix shares, and a split-merger transaction. Notable governance changes include the reappointment of CEO Jang Se-jun (chairman) and the new appointments of outside director Jeong Jin-seop and auditor Kim Dae-jin in March 2026. The company also expanded its India operations through Joint Venture agreement amendments, OEM manufacturing contracts, and technology licensing arrangements approved in April 2026. The disclosure confirms ongoing capital investment activity and deepening cross-border expansion into India and Vietnam.

Historical Impact

4 past Large Business Group Filing events at Korea Circuit

Median +5d

+4.16%

Range

-17.32% to +11.72%

Positive outcomes

2/4

Filed	P₀	P₊₅	+5d
Feb 27, 2026	₩58,900	₩48,700	-17.32%
Nov 27, 2025	₩31,950	₩35,100	+9.86%

Full Translation

Corporate Group Status Disclosure (Annual - Individual Company) 6.2 Korea Circuit Co., Ltd. Status Disclosure for Member Companies of a Large Business Group Business Group Name: Young Poong Group Controlling Person (Dong-il-in): Jang Hyung-jin Group Representative Company: Young Poong Corporation Reporting Company: Korea Circuit Co., Ltd. Contact: Kim Hye-jung (Senior Manager), Tel: 031-436-4873 <Reference> The representative company of the Young Poong business group status disclosure is Young Poong Corporation, and the overall group status disclosure is identical to the one submitted by representative company Young Poong Corporation. Please refer to the Young Poong group status disclosure submitted by Young Poong Corporation. 1. General Status (1) Company Overview (as of 2026.05.01, Unit: persons) - Member Company: Korea Circuit Co., Ltd. (Non-financial) - Representative: Jang Se-jun - Date of Incorporation: 1972.04.11 - Date of Affiliation: 2005.05.02 - Industry: C2622 Manufacture of Printed Circuit Boards and Electronic Component Mounting Boards - Employees: 1,321 - Public Listing: Listed - Fiscal Year End: 2025.12.31 (1-1) Business Segments (as of 2026.05.01) - C2622 Manufacture of Printed Circuit Boards and Electronic Component Mounting Boards — Representative product: Printed Circuit Boards - L6811 Real Estate Leasing — Building leasing (2) Financial Status (Standalone Balance Sheet basis, as of 2025.12.31, Unit: KRW million, %) - Current Assets (a): 376,976 - Cash & Cash Equivalents (within Current Assets): 28,889 - Non-current Assets (b): 470,676 - Total Assets (a+b): 847,652 - Current Liabilities (c): 245,046 - Non-current Liabilities (d): 217,725 - Total Liabilities (c+d): 462,771 - Borrowings (within Total Liabilities): 258,436 - Paid-in Capital: 13,685 - Total Equity: 384,881 - Debt-to-Equity Ratio: 120.24% (3) Profit & Loss Status (Standalone Income Statement basis, as of 2025.12.31, Unit: KRW million) - Revenue (or Operating Revenue): 862,984 - Operating Profit: 53,095 - Other Income, etc.: 41,177 - Other Expenses, etc.: 46,972 - Interest Expense (within Other Expenses): 14,320 - Net Income: 42,189 (4) Overseas Affiliated Companies (where a domestic affiliate is the largest shareholder) (as of 2026.05.01) - KOREA CIRCUIT VINA — Industry: PCB Manufacturing — Internal Equity Ratio: 100% — Country: Vietnam — Fiscal Year End: 2025.12.31 — Largest Shareholder: Interflex Co., Ltd. — Largest Shareholder Stake: 83.58% (5) Changes in Affiliated Companies (Domestic/Overseas affiliation additions and exclusions, 2025.05.02 ~ 2026.05.01) - None applicable. 2. Status of Executives, Board of Directors, etc. [ESG] (1) Status of Executives [ESG] (Registered executives as of 2026.05.01) - Jang Se-jun — Representative Director (Chairman of the Board) — Inauguration: 2020.03.24 — Registration: 2020.03.31 — Term Expiry: 2028.03.27 — Relationship to controlling person: 1st-degree blood relative — Concurrent positions: Interflex (affiliate), Young Poong Electronics (affiliate), Teranix (affiliate) — Background: CEO of Young Poong Electronics — Reappointed - Jang Se-jun — Inside Director — (same dates and details as above) — Reappointed - Yoo Wan-jun — Inside Director — Inauguration: 2023.03.27 — Registration: 2023.03.29 — Term Expiry: 2027.03.27 — Background: Head of HDI Business Division at Korea Circuit — Reappointed - Jeong Jin-seop — Outside Director — Inauguration: 2026.03.27 — Registration: 2026.03.31 — Term Expiry: 2027.03.27 — Concurrent positions: Damjeong LLC, Signetics (affiliate) — Background: Attorney at Roworld Law Firm, Interflex (affiliate) — Newly appointed - Kim Dae-jin — Auditor — Inauguration: 2026.03.27 — Registration: 2026.03.31 — Term Expiry: 2029.03.27 — Concurrent position: Interflex (affiliate) — Background: CFO/Executive Director at Neosem — Newly appointed (2) Board of Directors, Board Committees, General Meeting Systems, and Minority Shareholder Rights [ESG] A. Board of Directors Operating Status (2025.05.02 ~ 2026.05.01) Members (until early 2026): Jang Se-jun, Yoon Young-seon, Yoo Wan-jun, Choi Chang-won Key resolutions (all approved as originally proposed; 1 outside director attending unless noted): - 2025.06.26: Approval of capital increase for subsidiary Korea Circuit Vina; Report: 2024 Sustainability Report publication - 2025.09.17: Authorization to open and operate Dematerialized Account at HDFC Bank India - 2025.09.17: KRW 10 billion industrial operating fund loan refinancing for 1 year with Korea Development Bank (KDB) - 2025.09.22: Acquisition of shares in another company (Teranix) - 2025.11.05: Change of authorization for India securities account opening and operation - 2025.11.05: Designation of agent for issuance of Indian Taxpayer Identification Number and PAN card - 2025.11.05: Approval to release directors from non-compete obligation - 2025.11.05: New KRW 70 billion industrial facility fund borrowing from KDB - 2025.11.26: Setting of detailed credit limits for Hana Bank OAT (Outward Acceptance) and factoring - 2025.11.26: Approval of split-merger agreement and determination of record date for shareholder confirmation - 2025.11.26: Withdrawal of board resolution approving the split-merger agreement and record date - 2025.12.03: Acquisition of shares in another company (Teranix) — outside director absent - 2025.12.08: Approval of split-merger agreement - 2025.12.08: Setting of record date for shareholder confirmation - 2025.12.30: KRW 20 billion industrial operating fund loan refinancing for 1 year with KDB - 2026.01.20: Approval of split-merger - 2026.01.20: Comprehensive credit agreement with Woori Bank - 2026.01.20: Facility expansion investment - 2026.02.23: Approval of FY2025 financial statements, consolidated financial statements, appropriation of retained earnings (proposal), and business report - 2026.02.23: Transfer to discretionary reserves (Business Expansion Reserve) - 2026.02.23: Cash dividend decision - 2026.02.23: Approval of 2026 Safety & Health Management Plan - 2026.02.24: Announcement in lieu of meeting to report split-merger results - 2026.03.12: Convocation of 54th Annual General Meeting; Reports: Internal Accounting Control System operations, Auditor's evaluation of Internal Accounting Control System, Compliance Officer's compliance check results - 2026.03.12: Temporary implementation of electronic voting - 2026.03.12: Approval of change of plant (factory) name - 2026.03.20: Cancellation of treasury shares acquired through fractional share processing in the split-merger Members (from 2026.03.27): Jang Se-jun, Yoo Wan-jun, Jeong Jin-seop - 2026.03.27: Appointment of Chairman - 2026.03.27: Appointment of Representative Director (reappointment) - 2026.03.27: Determination of director compensation - 2026.03.27: Approval to release directors from non-compete obligation - 2026.04.28: KRW 10 billion industrial operating fund loan refinancing with KDB - 2026.04.28: Matters relating to bond issuance - 2026.04.28: Approval of amendment to India Joint Venture agreement - 2026.04.28: Approval of OEM manufacturing contract between India Joint Venture and the Company - 2026.04.28: Approval of technology license agreement between India Joint Venture and the Company B. Board Committees within the Board of Directors [Translation truncated]