https://btl.co.za/is-weed-legal-in-south-africa/

"The short answer is that weed is still illegal in South Africa. But there’s a lot more to consider and major progress is being made in court and in parliament."

I guess that is one of the reasons why the company issured this PR while market was trading and without a "halt" - It implys: this is not a significant fundamental change. 

Anyway, as MJ is so hot now, somebody may want to use this opportunity do a fast trading.

JMHO.  I would like to see further evidence before get on bus.