Not sure how much more positive news you are looking for?. They have lots of contracts and intitutional investors buying more.
You said you sold out in May have you now bought back in?
Having worked for Tarmac for many years came across Evered quite a few times if I remmeber they got taken over by Bardon aggregates so may suggest you search for evered/bardon for more info.
If they wanted to file for bankruptcy then they would have released the bad news and let the SP crash, however if it was good news the SP would rocket and they would not be able to buy it on the cheap.