Yes, but very often the company is in control when "news/events" will finally materialize.
What has any single PR done to the PPS lately? Up for a few days, then straight down the drain again. If they want a long lasting effect they would have feed the market periodically with good news before any setback kicks in. Eventually traders, market makers, manipulators, doubters, scumbags etc will have to accept that SIAF is for real and the only way to make money on SIAF from now on is in buying shares in the long term.