The French industrial director of the group, Luc Rousselet, was barricaded in an office on Tuesday evening. Workers had refused to let him out until he agreed to more favourable terms for the 110 employees who face the axe at the plant in Pithiviers, south of Paris. "A framework of an agreement allowing for the end of the current crisis on the 3M site in Pithiviers was signed today," a union representative said.