Over the past 150 years, Nokia has evolved from a small paper mill in Finland to a global telecommunications leader. Nokia transitioned into various industries such as rubber boots, car tires, and TVs before becoming a leader in mobile phones. Nokia's mobile phone platforms included Symbian, MeeGo, and Meltemi, and in 2011 it partnered with Microsoft to build a new mobile ecosystem using Windows Phone. Currently, Nokia focuses on Windows Phone and Symbian phones and faces main competitors like Samsung, Apple, RIM, and HTC.