I wasn't going to comment on this rumour in article form--despite a 20-page-and-counting thread about it--but it seems some clarification is needed as it's all over social media and the usual click-bait YouTube channels.
First off, Dungeons & Dragons is not being sold. That's the short version.
WotC, including D&D, is Hasbro's most profitable division and, as many put it, it's 'golden goose'. Despite an article on Pandaily being entitled "Hasbro Seeks to Sell IP “DND” and Has Had Preliminary Contact with Tencent"--and much of which is a close copy of a recent YouTube video rumour--buried halfway down the article is the important paragraph:
A Tencent IEG (Interactive Entertainment Group) insider revealed that Tencent, represented by its overseas business department IEG Global, is in negotiations with the aim of acquiring a series of rights including the adaptation rights for electronic games such as DND.
That means they wish to license the D&D IP to make video games. WotC licenses the D&D IP all the time--that's why you see all those D&D lunchboxes and plushies and t-shirts and miniatures and foam dragon heads and, indeed, movies and video games. Licensing an IP is not buying an IP. Modiphius is licensing the Star Trek IP for their TTRPG; Modiphius hasn't bought Star Trek. I published the Judge Dredd TTRPG for a couple of years, but I didn't own the Judge Dredd IP.
Tencent, incidentally, owns 30% of Larian Studios, who made the recent Baldur's Gate 3 video game--under license, of course (Larian didn't buy D&D either). Tencent is a massive Chinese company known for venture capital, social media, mobile games, internet services, and more, and is one of the world's largest companies. Tencent Games is a division of the company. It has stakes in a lot of companies.
So what does WotC have to say? "We are not looking to sell our D&D IP". The following statement was sent to outlets who reached out for clarification:
We regularly talk to Tencent and enjoy multiple partnerships with them across a number of our IPs. We don't make a habit of commenting on internet rumors, but to be clear: we are not looking to sell our D&D IP. We will keep talking to partners about how we bring the best digital experiences to our fans. We won't comment any further on speculation or rumors about potential M&A or licensing deals."
So, to be clear, Hasbro is not selling D&D to a Chinese company. They are in--as always--talks to license their IP to various companies for various purposes, including electronic games, movies, and lunchboxes.
