TMS International Corp. (TMS), formerly Metal Services Acquisition Corp., is a provider of outsourced industrial services to steel mills in North America. The Company provides a range of services through two segments: Mill Services Group and Raw Material and Optimization Group. The Mill Services Group segment includes scrap management and preparation; semi-finished and finished material handling; metal recovery and slag handling, processing and sales, and surface conditioning. The Raw Material and Optimization Group segment include raw materials procurement and logistics, and software-based raw materials cost optimization. The Company is a holding company controlled by Onex, and it operates through its wholly-owned subsidiaries, including its primary operating company Tube City IMS, LLC. It operates at 74 customer sites in nine countries across North America, Europe and Latin America, and its global raw materials procurement network spans five continents.