Samsung Electronics Co. and its labor union failed to reach a wage agreement Wednesday, raising concerns over a major strike later this month that could disrupt operations at the world's largest memory chipmaker.

Samsung Electronics and its labor union are making a final push for a deal this week as a planned May 21 strike threatens to disrupt operations at the world’s l

The labor union and management at Samsung Electronics failed to narrow their differences over performance-based bonuses on the second and final day of governmen