The amount of misinformation in this thread is high!
EU CO's do not buy whey from China like Rob/Mobster said.
As for where they buy their whey from - one of the 3 mentioned uses just one supplier and has done for a long time.
One other uses multiple suppliers.
Johnny please differentiate between a dairy and a contract packer not the same thing. I know Glanbia do contract pack but I would class them as a dairy.
As for prices - whey yet again going a bit iffy on price i.e. Q1,Q2 price rises likely.
The issue for the larger co's selling whey protein to us is not the price but whether they can get the qty they require.
Use 10MT per month or 100MT you won't see much of a difference in price.
Twiggy by all means get the boys together and rock up in the Hilux outside the dairy with a fistful of cash and see what gives - do video it however as it would make good viewing on youtube!
Bottom line is that some of the prices online right now for unflavoured are at cost or very close to it. Add in the free shipping and pouch/tub and it's value all the way!