Michelle Lennette Pilcher appeals from her guilty-plea conviction for possession or distribution of a listed chemical with knowledge, or reason to know, of its wrongful intended use. Pilcher argues that, in light of United States v. Booker, 543 U.S. 220, 125 S.Ct. 738, 160 L.Ed.2d 621 (2005), the district court erred in sentencing her based upon facts that were not admitted by her or found by a jury. The increases in Pilcher’s sentence for relevant conduct, possession of a firearm, and creating a substantial risk of harm to human life or the environment violated her Sixth Amendment right to a trial by jury, and the Government has not carried its burden of demonstrating that the errors were harmless. See United States v. Akpan, 407 F.3d 360, 376-77 (5th Cir. 2005). Accordingly, Pilcher’s sentence is VACATED, and the case is REMANDED FOR RESENTENCING.