Grocer Top 50 independent Filco Foods is preparing to roll out its discount off licence chain Rock Bottom. It launched the low margin high volume concept two years ago, in Cowbridge, south Glamorgan and is now looking for suitable sites for expansion in south Wales. Filco Foods md Ian Hunt said: "Rock Bottom has proved very successful and we are now set to open a second store in the local area, and then roll it out. We will stick to Wales though." Hunt said the company will also look at sites of around 6,000 sq ft to extend its chain of eight food stores. {{NEWS }}