A unanimous panel held that Asarco’s settlement in bankruptcy for its “share of response costs” did not preclude it from later bringing a CERCLA contribution claim.

The court provides guidance on liability if a subsidiary goes bankrupt because of the misconduct and careless management of its parent company.

Over the last few years, employees have increasingly sought to hold the parent companies of their employers liable for the subsidiaries’ actions by trying to demonstrate that the parent entity is the employee’s co-employer, i.e., that the employee has two employers: the company that hired him or her and its parent company.

To demonstrate this co-employment situation, the employee must prove either that