Airgas employees in Hawaii have joined a multi-state strike against the industrial supplier as both parties escalate tensions with legal claims of unlawful behavior.

Teamsters at Airgas in Honolulu, Hawaii, have joined the nationwide strike following the company's continued unfair labor ...

Union members accuse Airgas management of overstepping their roles. They join members in 11 other states now on strike.

The initiative aims to fight environmental damage and create durable products that can be used for infrastructure, including ...