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Amazon’s San Diego office. (Amazon Photo / John Cameron)

Among senior WeChat users, 85 percent use WeChat for social interaction, including sending voice messages, video chatting and seeing their WeChat friends' posts. Sixty-five percent read articles posted by companies and organizations' official accounts. Half of them use the payment functions on WeChat, according to Tencent.

Amid a renewed anti-corruption drive, China has run its "Sky Net" manhunt program for four years, focusing mainly on tracking down corruption fugitives and recovering illegal assets from overseas

Among the 41 industries surveyed, 32 posted year-on-year profit growth during the first seven months.

Among others, it plans to introduce at least two new models a year and to produce sedans within three years.