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Founded in 1987 as a non-profit international organization, GSMA is the world's most influential mobile industry association. At present, GSMA's work covers business, government policy and technological innovation. Its members include more than 750 mobile operators from more than 220 countries and nearly 400 companies and industry organizations, including mobile phone manufacturers, software companies, equipment suppliers, Internet companies, and finance, healthcare, transportation, and public utility companies. China Mobile, China Unicom and China Telecom are the three major members of China's board of directors. China's technology companies Huawei, ZTE, Xiaomi and Lenovo are also members of the company. The GSMA Greater China headquarters is located in Hong Kong and has liaison offices in Beijing and Shanghai.