That's interesting alright. The only ROI one I've studied to date is the McLoughlin's one. The oval said "IE See Code Panel EC". I didn't know what that meant other than it was produced in Ireland. Obviously the producer isn't too fussy where he gets it from but there is a number stamped on the lid with the date, 1405. The SS tells me this is from Glanbia, Drogheda... so the West Dublin address on the label is probably just an administrative office or maybe a distribution depot.
I'm still intrigued as to why your Lidl is selling ROI produced milk while mine id selling (albeit Irish) milk produced up in the UK... given that the Irish one is the same as Super Valu's I probably wouldn't like it but, as someone suggested earlier, my problem with Super Valu could be down to handling/storage. I previously concluded that Moriarty must be turning the fridges off at night after he tried to poison me with the Chicken and the Rashers and it's the sort of thing I'd expect of a miserable, penny-pinching cunt of his ilk.
Also interesting that the Clonbawn milk my parents got from Aldi in Coolock carries the same "UK NI 224M EC" as the Strathroy they also had in the fridge, I'm guessing they got that from Spar on Tonlegee Rd... and that is the same NI number as the one sold in my local Lidl so I know the whole lot of that is produced from Irish milk by Strathroy in Omagh up in the UK.
Just a thought, is your Lidl stuff light or semi-skimmed?