AmazonBasics batteries

I am nearing the end of my free batteries, and was shopping on Amazon. Does anyone know who makes these batteries?

I have been using 312 batteries from Amazonbasics for the last 2 years and find them to work just fine. The box they come in and the individual battery packs only say that they are made in the USA with U.S. and global parts. There is no other identifying info that I can find.

Thanks. I wondered if they were rebranded.