[UNPUBLISHED]

Stephanie Thi Nguyen pleaded guilty to conspiring to distribute 500 grams or more of a methamphetamine mixture, in violation of 21 U.S.C. § 846, and subject to sentencing under 21 U.S.C. § 841(b)(1). The district court 1 sentenced her to the statutory minimum of 120 months in prison and 5 years of supervised release. Nguyen appeals. Her counsel has moved to withdraw and filed a brief under Anders v. *986 California, 386 U.S. 738, 87 S.Ct. 1396, 18 L.Ed.2d 493 (1967).

Counsel’s challenge to the sentence is unavailing. The record reflects that Nguyen understood the statutory mandatory minimum penalties when she entered her guilty plea. The district court had no discretion to impose a sentence below the statutory minimum where there was neither a departure motion by the government nor eligibility for safety-valve relief. See United States v. Chacon, 330 F.3d 1065, 1066 (8th Cir. 2003).

Having reviewed the record independently under Penson v. Ohio, 488 U.S. 75, 109 S.Ct. 346, 102 L.Ed.2d 300 (1988), we find no nonfrivolous issue. Accordingly, we grant counsel’s motion to withdraw, and we affirm the judgment.