The meeting is the most concrete indication yet that China's unprecedented antitrust crackdown, which started late last year with billionaire Jack Ma's Alibaba business empire, could soon target other internet behemoths.
Tencent, whose WeChat messaging and payment mobile app is ubiquitous in China, is expected to be the next in line for sharper antitrust regulatory inquiries, said the three people.
The Shanghai-based company reported 788.4 million annual active buyers for the 12 months to the end of 2020, overtaking rival Alibaba Group to become China's largest e-commerce platform by users. Alibaba recorded 779 million annual active buyers during the same period.
The 41-year-old Huang, who owns about 30% of Pinduoduo, will also give up his super voting rights.
The Financial Times reported on Friday that Ma was replaced as a judge in the final episode in November of a game show for entrepreneurs called Africa's Business Heroes.
Chinese regulators have zeroed in on Ma's businesses since his October speech including launching an antitrust probe into Alibaba.
SoftBank Group dropped 1.8% after China launched an investigation into Alibaba Group for suspected monopolistic behaviour and will summon its Ant Group to meet in coming days.