From the NLRB press release on the temporary injunction and case:
A complaint issued by the NLRB Regional Office in Los Angeles in April alleged that American Reclamation engaged in multiple unfair labor practices beginning in early October 2011, during a union organizing campaign. The company allegedly threatened employees that they would be fired for supporting the union and that the company would be closed or sold if the employees voted for the union. In addition, company officials unlawfully promised improved working conditions, including better safety equipment, to discourage their support for the union.
Two employees who openly supported the union were discharged in October 2011, and a third was discharged in January 2012 after photographing hazardous materials and encouraging employees to voice concerns about hazardous materials they were handling. The injunction orders the company to offer reinstatement to the three employees, and to read the order to all employees.