- Advising Ministry of Employment and Labor on issues regarding multiple labor unions and union activities
- Advising Korea Railroad Corporation on labor disputes and bargaining
- Korea Rail Network Authority dismissal and disciplinary actions in connection with strikes
- Interpretation of collective agreements of Seoul Metro
- Confirmation of invalidity of election of financial industry labor union Kookmin Bank branch
- Dismissal case involving Korean Air Lines Co., Ltd. union activities
- Advising Daelim Industrial Co., Ltd. on labor disputes and bargaining
- Injunction for suspension of validity of financial industry labor union Kookmin Bank branch performance improvement program
- Rejection of registration of Pyeongtaek port transportation labor union formation
- Injunction against interference with business of National Health Insurance