@ Heri,
KCB has a wide branch network in South Sudan and has presence in every state capital. Due to wide network coverage, it is mostly the bank of choice for Government and 100s of NGO spread all over Sudan. Most of their income mostly is in transaction fees ( money transfers, bank charges, forex etc) and i do not think they are big on loans here due to collateral issues, so they are cushioned from assets losses.
The volatile border areas are a bit far from where the banks operations are and i doubt they will be affected.
FYI South Sudan is their best performing subsidiary. It is a great bank here in Sudan and for those who invest in shares it is a good deal ( for me shares are a no for personal reasons)
My 2 cents
"Things that matter most must never be at the mercy of things that matter least." Goethe