Insider Ownership Report: Non-Registered Executive Buys 300 Shares On-Market — DKEMS

Summary

A non-registered executive (Managing Director Yoo Seung Yoon, appointed September 2024) increased his holdings from 200 to 500 common shares via an on-market purchase on May 15, 2026, at 7,460 KRW per share. The total transaction value is approximately 2.24 million KRW, and his ownership ratio remains effectively 0.00% of the 14,486,386 shares outstanding. While insider buying is generally a mildly positive signal, the trivial size of this purchase makes it largely symbolic rather than financially meaningful. The report was filed with the Securities and Futures Commission and Korea Exchange on the same day.

Historical Impact

10 past Insider Ownership Change · ≈ Form 4 events at DKEMS

Median +5d

-1.78%

Range

-7.02% to +5.32%

Positive outcomes

4/10

Filed	P₀	P₊₅	+5d
Jun 15, 2026	₩6,170	₩5,980	-3.08%
Jun 11, 2026	₩6,120	₩6,090	-0.49%

Full Translation

Report on Ownership of Specified Securities by Executives and Major Shareholders 6.1 The Nature Holdings Co., Ltd. 2026-05-15 Report on Ownership of Specified Securities by Executives and Major Shareholders To: Securities and Futures Commission To: Korea Exchange Date reporting obligation arose: May 15, 2026 Report preparation reference date: May 15, 2026 * The reporter confirms that, as of the reporting reference date, the ownership status of their specified securities has been accurately prepared in accordance with relevant laws and reporting instructions, and that there are no material misstatements or omissions. Reporter: Yoo Seung Yoon 1. Issuing Company - Company Name: The Nature Holdings Co., Ltd. - Corporate Classification: KOSDAQ-listed corporation - Company Code: 298540 - Total Shares Issued: 14,486,386 2. Reporter Information - Report Type: Change - Reporter Category: Individual (Domestic) - Name (Korean): Yoo Seung Yoon - Name (Chinese/English): 柳承潤 (Yoo Seung Yoon) - Date of Birth: 1976-03-18 - Address: Guui-dong, Gwangjin-gu, Seoul - Relationship with Issuer: Executive (Registered status: Non-registered executive) - Title: Managing Director (Sangmu) - Appointment Date: 2024-09-09 - Retirement Date: - - Major Shareholder: - Business Contact: - Affiliated Company: The Nature Holdings Co., Ltd. - Department: IR/Disclosure Team, Management Support Division - Position: Team Leader - Phone: 070-76******* - Name: Yang Jeong-eun - Fax: 02-627****** - Email: ******@nglife.co.kr 3. Ownership of Specified Securities A. Number and Ratio of Specified Securities Owned - Previous Report (Dec 18, 2025): 200 shares (0.00%) / Common stock 200 shares (0.00%) - This Report (May 15, 2026): 500 shares (0.00%) / Common stock 500 shares (0.00%) - Change: +300 shares (0.00%) / +300 common shares (0.00%) B. Ownership Breakdown by Type of Specified Securities - Common stock: 500 shares - Warrant certificates, convertible bonds, bonds with warrants, profit-participating bonds, exchangeable bonds, depositary receipts, other: None - Total: 500 shares (0.00%) - Total shares issued (J): 14,486,386 - Specified securities ownership ratio: 0.00% - Common stock ownership ratio (A/J): 0.00% C. Detailed Change Details - Reason: On-market purchase (+) - Transaction Date: May 15, 2026 - Type: Common stock - Shares before change: 200 - Change: +300 - Shares after change: 500 - Acquisition/disposal unit price (KRW): 7,460 - Note: On-market purchase - Trading plan report date: - - Total: 200 → +300 → 500 Note) The transaction date above is the date of execution of the on-market purchase. * For trades executed on the securities market, the contract settlement date applies. ** For securities other than stock, this refers to the exercise (conversion/exchange) price of the relevant security or the trading unit price of shares acquired/disposed through exercise of rights; amounts in parentheses indicate the trading unit price of the security.