Shares in Samsung climbed after a court injunction sharply limited unions' power to stop production at the South Korean chipmaker's facilities. The ruling prevents labor actions that could halt semiconductor output, easing immediate fears of a disruptive strike at a critical global memory chip supplier.

This legal victory for management comes amid long-standing tensions with labor groups at Samsung's semiconductor plants. Production disruptions at its Korean fabs would have rippled through global electronics supply chains, given Samsung's dominant position in DRAM and NAND flash markets. The injunction specifically targets union attempts to leverage production halts during wage negotiations.

The decision provides operational certainty for Samsung's chip business, allowing it to maintain output without interruption. Investors reacted positively, pushing the stock higher as the immediate threat of a production-stopping strike receded. The ruling underscores the high stakes of labor relations for a company whose chip operations are vital to its profitability and global tech ecosystem.