Authorities say a Bluff City man is facing a charge of aggravated sexual exploitation of a minor.A Sullivan County grand jury indicted Dalton Slemp, 28, last Wednesday, according to the Sullivan County Sheriff’s Office.The sheriff’s office says after receiving a tip from the FBI, an investigation was launched regarding the uploading and sharing of child pornography from an address in Bluff City. Slemp was identified as a suspect and a search warrant was executed at his home on James Avenue on April 6.