Investopedia: Clean Harbors Goes Back To Its Roots In A Big Way

Clean Harbors (NYSE:CLH) is an interesting company. Built around hazardous waste collection and disposal, the company remains a leader when it comes to these services, but perhaps not as many investors are aware of how it has also built a large oil and gas services business (largely through acquisitions). At the end of October, however, the company took a big step back to its roots in announcing the acquisition of Safety-Kleen.

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