Major shareholder WS increases stake in WOOSUNG MATERIALS to 18.69% via open market purchases by special relations… stable management control


  • The reporting person WS and its special relations (Lim Jong-chan, Woosung Metal) increased their total shareholding by 183,668 shares (1.16%p) compared to the previous report, now holding 2,963,668 shares (18.69%).
  • The increase was made through open market purchases by special relations Woosung Metal (181,518 shares) and Lim Jong-chan (2,150 shares) from March 30 to May 27, 2026, with average acquisition prices of approximately KRW 2,882 and KRW 3,201 respectively, in line with market prices.
  • The acquisition funds were entirely self-financed: Woosung Metal used approximately KRW 523 million from corporate deposits, and Lim Jong-chan used approximately KRW 6.9 million from personal deposits.
  • As the largest shareholder, the filer maintains the purpose of influencing management, and this increase in stake strengthens their existing control.
  • This filing is a routine periodic report on shareholding changes and does not involve any capital structure alterations such as new financing or convertible bond issuance.
  • [AI Comprehensive Analysis]This major shareholding report is a routine disclosure confirming a slight increase in the largest shareholder's stake, with limited direct impact on corporate value or management control. However, continuous open market purchases by special relations may indirectly signal management's perception of undervaluation and intention to stabilize the stock price.

KOSPI Filing Information


  • Filing: Report on Large Shareholding (General)
  • Company: WOOSUNG MATERIALS (011300)
  • Submission: WS
  • Receipt: 05-29-2026