Overview

• The work stoppage began at 24:00 on September 30 after a national congress vote by delegates from 302 worksites.
• Union representatives say the action follows stalled collective bargaining and alleged violations such as extended shifts without required meal breaks and the absence of salary adjustments for 2021–2023.
• The union reports the strike authorization passed with support exceeding 90% of workers.
• A March 1, 2024 mediated agreement that revised parts of the contract and was approved by 84.2% of employees later gave way to new disputes over interpretation.
• The STPS reiterated its offer to facilitate conciliation after the union formalized its strike notice before judicial authorities, as leaders accuse management, naming labor-relations head Aldo Achar, of tactics to weaken the union including collective lawsuits, unilateral promotions, and backing a rival union.