YOON&YANG

• Litigation ∙ Arbitration

• 2004-present Yoon & Yang LLC

• 2004 Judicial Research and Training Institute
• 2002 Seoul National University Law School, LL.M.
• 1997 Seoul National University College of Law, LL.B

[Civil Litigation]

• Represented a construction company in a Supreme Court case concerning the validity of rehabilitation creditor registration, where the Court reversed the lower judgment due to misapplication of the principles of good faith and estoppel (Supreme Court Decision 2019Da253700, Mar 28, 2024).
• Represented a housing cooperative in a dispute over ownership transfer registration, where the Supreme Court overturned the lower court's denial of the cooperative’s legal standing as a non-incorporated association (Supreme Court Decision 2019Da278433, Jun 24, 2021).
• Defended a capital company in an objection lawsuit regarding an avoidance ruling in bankruptcy, with the Supreme Court addressing issues related to transaction invalidation during rehabilitation proceedings (Supreme Court Decision 2016Da247209, Apr 12, 2018).
• Represented the chairman of a major conglomerate in a shareholder derivative suit involving alleged breaches of fiduciary duties such as self-dealing and misuse of corporate opportunities, in which the Supreme Court ruled on the scope of directors’ duties (Supreme Court Decision 2015Da70044, Sep 12, 2017).
• Represented a cable broadcasting operator in a lawsuit seeking to prohibit interference with television-based advertising services, resulting in a key Supreme Court decision on broadcast-related business rights (Supreme Court Decision 2011Da31225, May 29, 2014).
• Represented a food company in a damages claim against flour manufacturers over price-fixing, with the Supreme Court confirming liability in a landmark competition law case (Supreme Court Decision 2010Da93790, Nov 29, 2012).
• Defended a public corporation in a case involving cancellation of a surcharge for unauthorized occupation of state-owned land, where the Supreme Court addressed the standards for administrative disposition (Supreme Court Decision 2005Du11463, May 15, 2008).
• Defended a debtor in a lawsuit filed by an assignee of construction receivables, with the Supreme Court evaluating the legal effect of assignment and debtor notification (Supreme Court Decision 2008Da76426, Jul 23, 2009).
  
  [Criminal Litigation]
• Defended a provincial governor in a criminal case involving abuse of authority and violation of the Public Official Election Act, where the Supreme Court reversed the conviction on the charge of false information dissemination (Supreme Court Decision 2019Do13328, Jul 16, 2020).
• Defended a former airline executive in a criminal case under the Aviation Security Act, with the Supreme Court upholding an acquittal on charges related to unauthorized route alteration (Supreme Court Decision 2015Do8335, Dec 21, 2017).
• Defended a city superintendent of education in a case concerning violations of the Local Education Autonomy Act, where the Supreme Court clarified interpretations of authority under educational law (Supreme Court Decision 2015Do14375, Dec 27, 2016).
  
  [Advisory Matters]
• Advised the government ministry in 2006 on the calculation of mandatory screening days under Korea’s screen quota system for domestic films (June 2006).