Michael Kluge was sentenced to 30 years in prison after a jury found him guilty of conspiracy to manufacture 50 grams or more of actual methamphetamine; the trial included the testimony of the conspiracy leader and seven coconspir-ators that Kluge was part of a network of pseudoephedrine suppliers for the leader, who admitted involvement in at least 350 grams of actual methamphetamine, see United States v. Malloy, 614 F.3d 852, 855, 861-62 (8th Cir. 2010), cert. denied, — U.S.-, 131 S.Ct. 3023, 180 L.Ed.2d 851 (2011). Kluge moved for a new trial under Federal Rule of Criminal Procedure 33 based on newly discovered evidence, undisclosed by the government, in the form of a lab report analyzing the drugs seized from one of Kluge’s coconspirators. The district court 1 denied the motion and Kluge appeals, arguing that the evidence could have been offered to show a general lack of purity of the methamphetamine the conspiracy produced.

Following careful review, we find no abuse of discretion. See United States v. Duke, 255 F.3d 656, 659 (8th Cir. 2001) (standard of review). To justify a new trial on the ground of newly discovered evidence, Kluge needed to prove (1) the new evidence was discovered after trial; (2) the failure to discover it before trial was not attributable to a lack of due diligence; (3) the evidence was material and not merely cumulative or impeaching; and (4) the new evidence would likely produce an acquittal upon retrial. See United States v. Huggans, 650 F.3d 1210, 1225 (8th Cir. 2011), cert. denied, — U.S.-, 132 S.Ct. 1583, 182 L.Ed.2d 172 (2012). Even assuming the evidence in question was material, should have been disclosed by the government, and was discovered after trial through no lack of diligence, it was insufficient to warrant a new trial. *484 See id. at 1225-26 & n. 8; Malloy, 614 F.3d at 855, 861-62. Accordingly, we affirm.