Kuo Chiao Announces Full Receipt of Proceeds from 2026 Cash Capital Increase and Sets Capital Increase Benchmark Date

1. Date of Fact: 2026/07/09 2. Company Name: Kuo Chiao Petrochemical Co., Ltd. 3. Relationship with Company (Please Enter '本公司' or 'Subsidiary'):本公司 4. Cross-shareholding Ratio: Not Applicable 5. Reason for Occurrence: (1) The company has issued 400,000 thousand ordinary shares through a cash capital increase in 2026, with each share subscribed at NT$14. The total amount of paid-in capital, amounting to NT$5,600,000 thousand, has been fully received. (2) The company has designated July 9, 2026, as the benchmark date for the cash capital increase. 6. Countermeasures: None 7. Other Matters to be Disclosed: The scheduled listing date for the share subscription rights certificates is July 14, 2026. This significant information also meets the criteria under Article 7, Paragraph 9, Item 9 of the Enforcement Rules of the Securities and Exchange Act, as it pertains to matters having a significant impact on shareholders' rights or securities prices for publicly issued companies or above.