Dual

016740 · KOSPI · Consumer Discretionary · SMALL CAP

Change of largest shareholder

Dual's largest shareholder changed from IHC Co., Ltd. and 5 related parties (13,939,206 shares, 48.61%) to Motrex EFM Co., Ltd. and 1 related party (18,131,706 shares, 63.23%), following closing of a share purchase agreement and the election of new directors and a standing auditor at an extraordinary shareholders' meeting on 2026-07-31.

Ownership change(Change of largest shareholder)· FILED 2026-07-31· RCEPT 20260731800717

What happened

Dual / Change of largest shareholder / (2026.07.31) Change of largest shareholder

Change of largest shareholder

1. Change details Largest shareholder before change: IHC Co., Ltd. and 5 others; Shares held: 13,939,206; Ownership ratio (%): 48.61 Largest shareholder after change: Motrex EFM Co., Ltd. and 1 other; Shares held: 18,131,706; Ownership ratio (%): 63.23

2. Reason for change: Share purchase agreement entailing a change of largest shareholder

3. Purpose of equity acquisition: Expanding business synergy through acquisition of management control Method of financing the acquisition: Own funds and borrowings Plan for appointment/dismissal of officers after the acquisition: At the extraordinary general meeting of shareholders (2026.07.31), the following new officers were appointed: 2 in-house directors; 2 outside (independent) directors; 1 standing auditor

4. Date of change: 2026-07-31

5. Date of confirmation of change: 2026-07-31

6. Other matters for reference in investment decisions This disclosure is a follow-up disclosure reflecting the closing of the share purchase agreement described in the "Material Management Matter Related to Investment Decisions" disclosed on April 30, 2026.

Related disclosures: 2026-04-30 Material management matter related to investment decisions; 2026-06-23 Setting of the shareholder register closure period or record date; 2026-07-08 Resolution to convene a general meeting of shareholders; 2026-07-16 Public notice convening a general meeting of shareholders; 2026-07-31 Results of the extraordinary general meeting of shareholders

Detailed change breakdown (Name (entity): Relationship: Shares before change / Ownership % before change: Shares after change / Ownership % after change: Note) IHC Co., Ltd.: Largest shareholder before change: 10,100,246 shares / 35.22%: - / -: - Jo In-hoe: Related party of the largest shareholder before change: 3,292,440 shares / 11.48%: - / -: - Jo Seung-hoe: Related party of the largest shareholder before change: 190,180 shares / 0.66%: - / -: - Jeong Yong-ja: Related party of the largest shareholder before change: 62,100 shares / 0.22%: - / -: - Choi Gwang-sun: Related party of the largest shareholder before change: 7,500 shares / 0.03%: - / -: - Jeong Jae-yeol: Related party of the largest shareholder before change: 286,740 shares / 1.00%: - / -: - Motrex EFM Co., Ltd.: Largest shareholder after change: - / -: 17,844,966 shares / 62.23%: - Jeong Jae-yeol: Related party of the largest shareholder after change: - / -: 286,740 shares / 1.00%: -

Filed2026-07-31, Change of largest shareholder
SourceDART rcept 20260731800717 → open original filing

Source: DART. Information only, not investment advice.

For informational purposes only. This is not investment advice, a recommendation, or a solicitation to buy or sell any security. Do your own research; any investment decision is your own responsibility.

Data from DART, Korea's official corporate-filing system. Data sourced from official DART filings. Accuracy is not guaranteed. Figures are as of the date shown. As of 2026-07-31 (KST). · Converted at 1 USD ≈ ₩1,325 (rate of 2026-10-21).