No it didn't.
Each fragment at 68% fills up 68% of a refinery bin - therefore you need two to fill a bin - a filled bin refines 1 tonne of product.
(BTW - it is metric - tonne not ton)
well, you might be right: I noticed, the right panel said "fragment collected ...Painite refined....fragment collected..." that could have been two fragments also...
Actually I never understood the logic of refinery-filling. Thank you for that ;-)