Which mobile phone OEM or ODM factories are there in Chinese mainland?

ODM (Original Design Manufacturer) means that a mobile phone company is responsible for designing, developing and producing the whole mobile phone. These products will be placed by some overseas customers and then sold under their own brands. At present, the overseas development mode of domestic mobile phone manufacturers is basically ODM, and ODM customers include operators and brands such as Micromax, Fly, Jin Lingzi and Symphony.

OEM refers to the mode that the brand company is responsible for designing and developing products and the OEM is responsible for processing and production. This is the result of economic globalization and social division of labor. Due to factors such as supply chain and production cost, international brand manufacturers in Europe and America often do not produce their own products, but entrust their manufacturers to foundries in countries and regions with lower production costs, such as Chinese mainland, Taiwan Province, Southeast Asia, Mexico and South America. Like Apple, Samsung, HTC, Nokia and so on. This model is also based on this model.

There are many foundries in Shenzhen and Dongguan. Well-known are Foxconn (Apple, Blackberry, Xiaomi, etc. ), BYD (Nokia, Huawei P6, IUNI, etc.), Inventec (Xiaomi), Crown (Sony, LG, etc. ), Flextronics (formerly motorcycle OEM in Tianjin). As for the pattern, it's really hard to say. High-end products must be produced by these big companies, and Foxconn must be used by Apple. Low-end products are basically based on cost, and products are found in foundries.