The company said in a Sunday statement on the Chinese social media site Weibo that Liu was falsely accused of sexual misconduct while in the US on a business trip.
The company's stock gained 2.92 percent during trading on the New York Stock Exchange, following a strong fiscal third-quarter earnings report released on Tuesday.
The company's statement came in response to an alert issued by the US Department of Homeland Security, which said Chinese-made drones may be sending sensitive flight data back to their manufacturers in China, and the same can be accessed by the government there.
The company will offer 18,000 mooncakes for sale in Shenzhen, Guangdong province, around the festival time.
The company's food delivery business has created more than 500,000 jobs in its delivery side.
The company's self-heating technology enables batteries to warm up from - 20 degrees Celsius to 10 degrees Celsius in 15 minutes. It has also extended electric vehicles' battery life to 600,000 km.
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The company's Chinese clients include Vivo, OPPO, Xiaomi, ZTE, OnePlus and Huawei, all of which have unveiled devices powered by Qualcomm's mobile platforms and modems.
The company is also setting foot in the vocational education sector, in the hope of nurturing more talents for the movie and gaming industries.
The company's parent groups, Renault-Nissan Alliance and Dongfeng Motor Group, have also entered into a new joint venture to co-develop and sell electric vehicles in China.
The company will also partner with other firms, including digital economy company Malaysia Digital Economy Corporation, to aid Malaysian enterprises in cultivating IT talent and accelerating the application of AI in tourism, finance, logistics and transport.