In today’s globalised world of instant communication, mobile phones are a nearly ubiquitous feature of everyday life in most developed and many developing countries. Ninety percent of the population of Western Europe now has access to a mobile phone, and mobile phone penetration in large Asian countries like China and India is rising exponentially. In 2006, mobile phone sales will reach a volume of 935 million handsets, representing a value of US $136 billion. This SOMO report covers the industry’s top five manufacturers of mobile phones, Nokia, Motorola, Samsung, Sony-Ericsson and LG, comparing the companies’ corporate social responsibility (CSR) policy with the results of SOMO-commissioned field research into the actual conditions at mobile phone factories in China, India, Thailand and the Philippines.