Over one third of Samsung workers in South Korea may strike this week, with significant implications for the country's economy.

More than 45,000 workers are threatening to stage the largest strike in the conglomerate's history from May 21.

South Korea's PM warned of "unimaginable" economic damage. The union wants 15% of operating profit. Samsung has offered 10%. The deadline is May 21.

While crisis has put South Korea on edge, government threatened to order arbitration