Semi-Annual Report (H1 2026) — Credit Rating Upgraded to AA+, No Subsidiaries

SEMI-ANNUAL REPORT (31st Fiscal Year) Fiscal Year: January 1, 2026 to June 30, 2026 To: Financial Services Commission / Korea Exchange Date of Submission: August 14, 2026 Filing Entity Type: Listed Company (Equity-Listed) Exemption Cause: Not applicable Company Name: LEENO INDUSTRIAL INC. CEO: Lee Chae-yun Headquarters: 10, Mieumsandan-ro 105beon-gil, Gangseo-gu, Busan Metropolitan City Phone: 051-831-3232 Website: https://leeno.com/kr Preparer: Director Kim Jin-cheol, Tel: 051-831-3232 --- TABLE OF CONTENTS [CEO Confirmation] .............. 1 I. Company Overview .............. 2 1. Company Overview .............. 2 2. Company History .............. 6 3. Changes in Capital .............. 8 4. Total Number of Shares .............. 9 5. Articles of Incorporation .............. 12 II. Business Overview .............. 15 1. Business Summary .............. 15 2. Key Products and Services .............. 17 3. Raw Materials and Production Facilities .............. 18 4. Sales and Order Status .............. 21 5. Risk Management and Derivative Transactions .............. 24 6. Major Contracts and R&D Activities .............. 28 7. Other Reference Information .............. 43 III. Financial Information .............. 50 1. Summary Financial Data .............. 50 2. Consolidated Financial Statements .............. 52 3. Notes to Consolidated Financial Statements .............. 53 4. Separate Financial Statements .............. 54 5. Notes to Separate Financial Statements .............. 61 6. Dividend Information .............. 132 7. Capital Raising via Securities Issuance .............. 135 8. Other Financial Matters .............. 138 IV. Directors' Management Discussion and Analysis .............. 146 V. Auditor's Opinion .............. 148 1. External Audit .............. 148 2. Internal Controls .............. 150 VI. Board of Directors and Corporate Governance .............. 152 1. Board of Directors .............. 152 2. Audit System .............. 157 3. General Shareholders' Meeting .............. 160 VII. Shareholders .............. 164 VIII. Officers and Employees .............. 166 1. Status of Officers and Employees .............. 166 2. Executive Compensation .............. 170 IX. Affiliated Companies .............. 178 X. Transactions with Major Shareholders .............. 179 XI. Other Matters Required for Investor Protection .............. 180 1. Progress and Changes in Disclosed Matters .............. 180 2. Contingent Liabilities .............. 181 3. Sanctions and Related Matters .............. 182 4. Material Events After the Report Date .............. 183 XII. Detailed Tables .............. 184 1. Consolidated Subsidiaries (Detail) .............. 184 2. Affiliated Companies (Detail) .............. 185 3. Investments in Other Entities (Detail) .............. 186 [Expert Confirmation] .............. 187 --- I. COMPANY OVERVIEW 1. Company Overview a. Overview of Consolidated Subsidiaries As of the preparation date of this report, there are no consolidated subsidiaries. (Unit: companies) Classification | # of Consolidated Companies | # of Major Subsidiaries | Beginning | Increase | Decrease | End Listed: — — — — — Unlisted: — — — — — Total: — — — — — ※ For details, refer to 'Detailed Table 1: Consolidated Subsidiaries (Detail)' Changes in Consolidated Companies: Classification | Subsidiary | Reason Newly Consolidated: — — Deconsolidated: — — b. Legal and Commercial Name The company's name is 'LEENO INDUSTRIAL CO., LTD.' in Korean (리노공업주식회사) and 'LEENO INDUSTRIAL INC.' in English. Abbreviated forms are '리노공업(주)' and 'LEENO IND. INC.' respectively. c. Date of Establishment and Years in Operation The company was founded in November 1978 as LEENO Industrial Works (리노공업사) and converted to a corporation in December 1996. In December 2001, it was listed on the KOSDAQ securities market. d. Headquarters Address, Phone, and Website Address: 10, Mieumsandan-ro 105beon-gil, Gangseo-gu, Busan Metropolitan City Phone: 051-831-3232 Website: https://leeno.com/kr e. SME / Venture / Mid-Sized Enterprise Classification SME: No Venture Enterprise: No Mid-Sized Enterprise: Yes f. Key Business Activities Founded in November 1978 as LEENO Industrial Works and incorporated in December 1996, with KOSDAQ listing in 2001. The company develops, manufactures, and sells spring contact probes (SPRING CONTACT PROBE: LEENO PIN) and IC test sockets for semiconductor inspection under its own brand — products that were previously entirely imported. It also manufactures and sells medical device components used in ultrasonic diagnostic equipment and other applications. For detailed business segment information, refer to Section II. g. Credit Ratings Date | Rated Security | Rating | Rating Agency | Basis Date 2026-04-22 | Credit / Cash Flow | AA+ / CR-1 | eCredible Co. | 2025-12-31 2025-08-19 | Credit / Cash Flow | AA / CR-1 | eCredible Co. | 2025-06-30 2025-04-18 | Credit / Cash Flow | AA / CR-1 | eCredible Co. | 2024-12-31 2024-08-27 | Credit / Cash Flow | AA / CR-1 | eCredible Co. | 2024-06-30 2024-04-21 | Credit / Cash Flow | AA / CR-1 | eCredible Co. | 2023-12-31 *eCredible Rating Definitions: AAA: Highest creditworthiness; debt repayment ability is at the highest level (cumulative distribution: 0.01%) AA+ / AA / AA-: Very high creditworthiness; slightly inferior to AAA in certain factors (0.05%) A+ / A / A-: High creditworthiness; somewhat more susceptible to economic downturns and environmental changes than higher-rated categories... [Translation truncated — source content ends here]