Material event report (bonus issue)

What happened

Material Event Report (Decision on Bonus Issue) 6.1 MH Ethanol Co., Ltd. Material Event Report / Matter subject to mandatory exchange reporting To: Financial Services Commission / Korea Exchange October 1, 2026 Company name: MH Ethanol Co., Ltd. CEO: Choi Dong-ho, Kim Il-hwan Head office location: 25 Gwangryeocheonnam-ro, Naeseo-eup, Masanhoewon-gu, Changwon-si, Gyeongsangnam-do (Tel) 055-231-0701 (330) (Website) http://mh.mhethanol.com Preparer: (Title) Executive Director (Name) Kwon Kyung-rok (Tel) 055-231-0701

Decision on Bonus Issue

1. Type and number of new shares Common stock (shares): 6,201,433 Other class shares (shares): not applicable

2. Par value per share (KRW): 500

3. Total number of issued shares before the capital increase Common stock (shares): 6,201,433 Other class shares (shares): not applicable

4. New share allotment record date: October 20, 2026

5. Number of new shares allotted per share Common stock (shares): 1 Other class shares (shares): not applicable

6. Dividend record date for the new shares: January 1, 2026

7. Expected date of delivery of new share certificates: not applicable

8. Expected listing date of new shares: November 10, 2026

9. Board of directors' resolution date (decision date): October 1, 2026 - Attendance of independent (outside) directors*: Present: 1; Absent: not applicable - Attendance of the auditor (audit committee member): Present * For listed companies, this refers to independent directors; for unlisted companies, to outside directors.

10. Other matters for reference in investment decisions 1) The company will allot new shares at a ratio of 1 new share per 1 share owned (100%) to shareholders recorded in the shareholder register as of the new share allotment record date (October 20, 2026). 2) Source of funds for the new shares: capital surplus (share premium), KRW 3,100,716,500 3) Method of handling fractional shares: fractional shares of less than 1 share resulting from the allotment will be paid in cash based on the closing price on the first day of listing of the new shares. 4) Item 8 above, the expected listing date of the new shares, may change depending on consultations with relevant institutions. 5) Matters other than those listed above that are necessary for the bonus issue are delegated to the CEO or a person designated by the CEO.

※ Matters concerning other class shares Basis in the articles of incorporation: not applicable Content of the shares: not applicable Other: not applicable