Twinings of London are to shed 236 jobs in England as part of this move. I dont think a site has been identified yet, if you go to the Associated British Foods website and ask customer relations.
Probably in the North near the ports and near a population centre.
No surprise, there's a lot of new factories/etc going up there - and once the S5 gets built, it'll have a very quick, easy access to the A2. Poznan (and the surrounding area) is doing exceptionally well at the moment when it comes to attracting big business.