Norwell, Massachusetts-based Clean Harbors Inc. named Executive Vice President of Corporate Planning and Development Brian Weber president of its Safety-Kleen Sustainability Solutions segment. Weber maintained his title of executive vice president of the parent company.  Pendleton, South Carolina-based VBASE Oil Co. announced the addition of Martin Greaves as chief technology officer, leading the continued development and commercialization of the company’s sustainable, high-performance base oils and lubricants.