Rear derailleur compatible with 11/12 speed bar end shifters?

[SVChucko]

My "other bike" is a Surly Long Haul Trucker with bar end shifters. I'd like to upgrade the 3x9 drivetrain to a wider range 3x11 or maybe 2x11/12, also with bar end shifters.

Does anyone know if there's a Chinese MTB rear derailleur that would be compatible with Shimano or MicroShift 11 or 12 speed bar end shifters? MicroShift's 11 speed bar ends are supposedly compatible with Shimano 11 speed road [edit: they have several models that work with Shimano road or MTB, or SRAM road], but their 12 speed shifters are compatible with Shimano DynaSys 12 speed MTB.

Thanks in advance.

[StiffWeenies]

SRX Pro 1x11 supposedly works with M8000 11s

SRX Pro 1x12 doesn't work with M6100 12s