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HTC HTC (Taiwan HTC, one of the largest smartphone OEMs, one of the world's largest smartphone manufacturers, HTC International Electronics Co., Ltd.).

Lenovo (a Fortune 500 company, a well-known Chinese trademark, a Chinese famous brand, a global PC leader, a listed company, a large multinational enterprise, Lenovo Group Co., Ltd.).

Xiaomi MI (established in April 2011, is a mobile Internet company focusing on independent research and development of high-end smartphones, Beijing Xiaomi Technology Co., Ltd.).

Meizu MEIZU (a high-tech enterprise focusing on the R&D and production of multimedia terminals, a private high-tech enterprise, one of the top ten domestic mobile phone brands, Zhuhai Meizu Technology Co., Ltd.).

ZTE ZTE (the world's leading integrated communications solution provider, leading supplier of high-tech communications equipment, one of the top ten domestic mobile phone brands, ZTE Corporation).

HUAWEI (in 1987, the world's leading information and communication solutions provider, one of the top ten mobile phone brands, a globally influential brand, Huawei Terminal Co., Ltd.).

Coolpad (one of the world's leading smartphone manufacturers, Shenzhen high-tech enterprise, large group company, Yulong Computer Communication Technology (Shenzhen) Co., Ltd.).