Samsung Asset Management Trims Stake to 7.12% (Simplified Report) — Techwing

Summary

Samsung Asset Management filed a simplified large-shareholding report disclosing that its stake fell from 8.11% (3,006,275 shares) to 7.12% (2,636,897 shares), a decrease of 369,378 shares or 0.99 percentage points. The position change is reported for simple investment purposes, not for influencing management, and includes shares delegated to Samsung Active Asset Management. Detailed transactions in early February 2026 show a mix of ETF creations/redemptions and on-market purchases, but the net effect since the prior report on February 5, 2026 was a reduction. As a simplified filing by a professional institutional investor, this is a routine portfolio adjustment rather than a strategic move.

Historical Impact

10 past Large Holding Report (5%+) · ≈ Schedule 13D/G events at Techwing

Median +5d

-2.16%

Range

-13.55% to +16.61%

Positive outcomes

4/10

Filed	P₀	P₊₅	+5d
Jun 18, 2026	₩60,500	₩52,300	-13.55%
Feb 6, 2026	₩43,950	₩42,100	-4.21%

Full Translation

Large Shareholding Report (Simplified) Company: Techwing Report date: 2026-05-12 Large Shareholding Report (Simplified format: applicable to reports under Article 147 of the Financial Investment Services and Capital Markets Act where the purpose is NOT to influence management, or where the reporting party is a professional investor under the latter part of Paragraph 1 of the same Article) To: Financial Services Commission Date of reporting obligation: May 12, 2026 To: Korea Exchange Report reference date: June 1, 2026 Reporting party: Samsung Asset Management === SUMMARY === Professional investor classification (under reporting exceptions): - Issuer: Techwing Relationship with issuer: Shareholder Report type: Change Number of shares held and holding ratio: - Previous report: 3,006,275 shares (8.11%) - Current report: 2,636,897 shares (7.12%) Voting rights and holding ratio: - Previous report: - / - - Current report: - / - Reason for reporting: Change-reporting obligation triggered by trading (includes shares delegated to Samsung Active Asset Management for management) Purpose of holding: Simple investment The reporting party confirms that, as of the report reference date, the shareholdings of itself and its specially related parties have been accurately prepared in accordance with relevant laws and disclosure requirements, with no false statements or omissions of material facts. Confirmation document (simple investment purpose): "No management participation purpose – Samsung" === PART 1: REPORT OVERVIEW === 1. About the Issuer - Company name: Techwing - Company code: 089030 - Corporate classification: KOSDAQ-listed company - Total issued shares with voting rights: 37,053,645 2. About the Large Shareholder A. Reporting Party (1) Overview - Report type: Change / Individual - Reporter classification: Financial institution - Nationality: Republic of Korea - Name (Korean): Samsung Asset Management - Name (English): SAMSUNG ASSET MANAGEMENT - Address (head office): Seocho-daero 74-gil, Seocho-gu, Seoul - Business registration no.: 501-81-23179 - Business: Collective investment business, etc. - Relationship with issuer: Shareholder - Contact: Samsung Asset Management, Fund Accounting Team 1, Senior – Park Myung-gu, Phone 3774-7*** (2) Detailed information about the reporter (as of end of March 2026) - Legal nature: Corporation (joint-stock company) - Total assets (or AUM): KRW 1,191,074,278,004 - Total liabilities: KRW 141,792,856,335 - Total equity: KRW 1,049,281,421,669 - Capital: KRW 93,430,000,000 - Representative: CEO Kim Woo-suk - Decision-making body: Investment Committee - Largest shareholder: Samsung Life Insurance - Largest shareholder's stake: 100% B. Specially Related Parties: None C. Collective Investment Manager (1) Overview - Name: Samsung Asset Management (Business reg. no. 501-81-23179) - Target collective investment vehicles: Collective investment vehicles and discretionary investment - Nationality: Republic of Korea - Address: 11, Seocho-daero 74-gil, Seocho-gu, Seoul (2) Detailed information - Legal nature: Corporation - Capital: KRW 93,430,000,000 - Total AUM: KRW 465.9 trillion - Representative: CEO Kim Woo-suk - Decision-making body: Investment Committee - Largest shareholder: Samsung Life Insurance (representative: Hong Won-hak) - Largest shareholder's stake: 100% 3. Number of Shares Held and Holding Ratio Previous report (Feb 5, 2026): Samsung Asset Management – 3,006,275 shares (8.11%); voting-right shares: 3,006,275 (8.11%); total issued voting shares: 37,053,645 Current report (Jun 1, 2026): Samsung Asset Management – 2,636,897 shares (7.12%); voting-right shares: 2,636,897 (7.12%); total issued voting shares: 37,053,645 Change: -369,378 shares (-0.99%); change in voting shares: -369,378 (-0.99%); change in total issued shares: 0 4. Reason for Change - Method: Buy / Sell - Reason: Simple additional acquisition / disposal - Reason for amendment: - === PART 2: DETAILS OF LARGE SHAREHOLDING === 1. Holdings by Type for Reporter and Specially Related Parties Reporter: Samsung Asset Management – Common stock 2,636,897 shares; warrants, CBs, BWs, EBs, DRs, other: none. Total: 2,636,897 shares (7.12%) * Reporter's holdings include 169 shares (0.00%) delegated to Samsung Active Asset Management for management. Total issued voting shares (I): 37,053,645 Potential shares held: - Holding ratio (of stock-type instruments): 7.12% Holding ratio (of common shares only): 7.12% 2. Holdings by Proprietary vs. Client Account (financial institutions only) Samsung Asset Management (self): Proprietary account – none; Client account – 2,636,897 shares (7.12%); Total: 2,636,897 shares (7.12%) Grand total: 2,636,897 shares (7.12%) === PART 3: LARGE-VOLUME CHANGES SINCE PREVIOUS REPORT === 1. Summary of Changes A. Changes in Shareholdings Reporter: Samsung Asset Management – Common stock change: -369,378 shares. Total change: -369,378 shares (-0.99%) Specially related parties: None 2. Detailed Changes A. Detailed Share Changes (unit: shares, KRW) - 2026.02.06 – Other (+): Common stock; before 3,006,275 → +11,080 → after 3,017,355; price 44,900; note: General fund OTC ETF redemption – Other (+) - 2026.02.06 – On-market purchase (+): Common stock; 3,017,355 → +246 → 3,017,601; price 43,406; note: On-market purchase (+) - 2026.02.06 – Other (+): Common stock; 3,017,601 → +71,602 → 3,089,203; price 48,250; note: ETF creation – Other (+) - 2026.02.06 – Other (-): Common stock; 3,089,203 → -28,908 → 3,060,295; price 48,250; note: ETF redemption – Other (-) - Samsung Asset Management, 501-81-2... [Translation truncated]