Which country is the brand of OPPO mobile phone?

Hello, OPPO mobile phone is a domestic brand. OPPO, the full name of Guangdong Opal Mobile Communication Co., Ltd., was established in 2004. Is a global intelligent terminal manufacturer and mobile Internet service provider, committed to providing customers with advanced and exquisite smart phones, high-end audio-visual equipment and mobile Internet products and services, covering China, the United States, Russia, Europe, Southeast Asia and other vast markets.