Telecom and Electronics manufacturers based in and around Chennai include Samsung, Nokia Siemens, Motorola, Lenovo, Dell, Force10, Wipro, Flextronics and Siemens among others. Chennai is currently the largest electronics hardware exporter in India, accounting for 45% of the total exports in 2010–11.[277] Telecom giants Ericsson and Alcatel-Lucent, pharmaceuticals giant Pfizer and chemicals giant Dow Chemicals have research and development facilities in Chennai.