RLX Technologies Inc is the largest e-cigarette company in China. The head of it is the former head of Uber China. The hair cur in the share price is on the back of a report for potential regulation/taxation of e-cigarettes. Even a tax equivalent doesn't effect the growth drivers much and this seems more like a paid bash attempt by a short seller. I don't see circumstances where this stock doesn't rebound quickly.
All ideas are based on my own research. As always I recommend you take the time to do diligence on your investments to make sure they match your risk and objectives.