Tata Steel acquired Corus Group, then the world's fifth largest steel maker, in a $12 billion deal in 2007. This made Tata Steel the fifth largest steel producer globally. The acquisition was financed through a combination of equity and debt financing. It helped Tata Steel gain access to Corus' production lines, technology and global markets. However, Tata Steel's stock price saw volatility following the deal due to challenges in integrating the companies. The acquisition was regulated under Indian and international laws governing mergers and acquisitions.