HuskyPup - 2:09 pm on Jan 15, 2013 (gmt 0)
Is the site on a .co.uk or .com?
All my sites also including .asia, .cn, .eu and .in are hosted in the UK.
My .com, .asia, .cn, .eu and .in have absolutely no problems ranking on Google.com, my .eu no problem with Google.co.uk however my .com has big problems with Google.co.uk to the extent I've duplicated it on a .co.uk and it has now started to rank ok on Google.co.uk.
Google seems to have serious problems with geo-location at times, for instance I have a .com for another Indian company from 1998 and for years Google ranked it globally, after all it is a global supply company, then all of a sudden Google decided to knock it out of the .com SERPs almost altogether and now it only ranks in Google.co.in
<slightly off topic>
Furthermore when I check keyword rankings the Chinese have mastered the art of ranking the spammiest of domain names and url structures going with both thin and scraped content. I mention this simply because it may not be you at fault...how does your site fare in Bing?