Kev wrote:

What surprises me is that there is a factory anywhere in London let
alone Croydon or the whole of SE England come to that.
I thought that London as a 100% service industry sector. I suppose it
could be a warehouse for all those Far East imports.

There's this "little" thing called the Tate & Lyle Sugar Refinery down
in Silvertown for starters:

http://maps.google.co.uk/maps?t=k&ie=UTF8&hl=en&ll=51.500635,0.047261&spn=0 .002965,0.007296&z=17&om=1

Cheers,

Barry