Inexpensive CLU048-1212C4 COBs

Does anyone currently have any information about the CLU048-1212C4-353M2K1 (or similar 1212 based versions)

I keep on reading that there are possibly some low-cost suppliers around but am not really sure who I should contact, etc.. Can anyone help? D:

yes there are a couple other threads about em right now

https://www.rollitup.org/t/is-this-a-vero-29-killer.906620/page-4
https://www.rollitup.org/t/cheap-and-cheerful-diy-using-citizen-cobs.909460/page-5