I recently sent an email asking gaspari nutrition who manufactured their m1t for them and this is what i got back:
"We import our material and sublet the job to many diferent manufactures."
Just to add to that, i specifically asked if it was meso labs or amt and that was the response i got.To me this means that the question is being avoided. If their product was from meso labs or amt they would have said so. Hence use caution if you purchase from them!!