BA handling SriLankan Airlines
BA actually stopped handling SriLankan Airlines (not Air Lanka!) back in June 2006. After 20+ years of handling UL, it was mutually decided that as SriLankan isn't a OneWorld carrier, and they would not be moving to T5, it was time to agree to hand over the contract to another handling agent. In this case, KLM Ground Services in Terminal 4.
It was no great loss to BA, as from a handling perspective it was a right royal pain in the butt, but we do still have a very good relationship with the UL staff in T4.