Corporate Captain reported the loss of control during the landing rollout. The Captain stated the runway became much slicker towards the end and the aircraft slid into a noted hot spot area.

Narrative

METAR Weather: Special weather advisory; 1.5 SM 20011Kt 1 ½ SM -SN BR VV015 M08/M11 A2951 RMK A02 P0000 (wet sleet was falling frizzing onto the runway).Commercial terminal turnoff has all traffic (both private and commercial aircraft) passing their turnoff which eliminates freezing slush much better than the general aviation had with much less traffic which cause the slush to freeze and become icy. As a pilot; we have to be concerned with making a safe landing and arrival of the aircraft and passengers that also includes the traffic behind us.It's a balancing act to roll down an icy runway; to slow down enough to turn off without impeding traffic behind you safely. When I approached; I applied brakes prior to the turn off which should have been sufficient for a turn on taxiway. But ice patches causing our aircraft to slide; my thrust reversers were still deployed and we slid slowly into the slightly into HS1 area; requested a 180 to the ramp into the parking area. No damage to the aircraft; did not go off concrete just slid on ice. I had a discussion with the airport manager that was in charge of cleaning the runway. He asked me what happened. I explained the last portion where I was going to turn in slow for safe turn my aircraft slid into the hotspot number one area safely.The airport manager asked me how what was my opinion about the runway condition I said the both front and middle was good but the last portion in front of Taxiway 1 caused me to slip and slide again no damage to the aircraft; he said he would get his equipment out and re-clean the whole runway and doing so it caused the airlines to have to go into a hold until the equipment was off the runway.The best way I can describe it is it's like driving a car on ice you're going very slow but yet you're forward motion is causing you to go forward where it's out of your control until you regain control again.Note: I do not believe that any aircraft directly behind me had to go missed and we also slid on the GA Ramp.