MEMORANDUM **

Qiang He, a native and citizen of China, petitions for review of the Board of Immigration Appeals’ (“BIA”) order dismissing his appeal from an immigration judge’s decision denying his application for asylum, withholding of removal, and relief under the Convention Against Torture (“CAT”). We have jurisdiction under 8 U.S.C. § 1252. We review de novo conclusions of law and for substantial evidence factual findings, Wakkary v. Holder, 558 F.3d 1049, 1056 (9th Cir. 2009), and we deny the petition for review.

Substantial evidence supports the agency’s adverse credibility determination regarding allegations of past harm based on the finding that petitioner omitted from his original asylum application the most severe aspect of his claimed persecution in China, and that his explanation for the omission was implausible in light of his subsequent actions. See Zamanov v. Holder, 649 F.3d 969, 973-74 (9th Cir. 2011). In the absence of credible testimony, petitioner’s asylum and withholding of removal claims based on his alleged past persecution fail. See Farah v. Ashcroft, 348 F.3d 1153, 1156 (9th Cir. 2003).

Additionally, petitioner has otherwise failed to establish a basis for asylum or withholding of removal. Contrary to peti*333tioner’s contention, the BIA correctly concluded that petitioner had conceded that his newfound Jehovah’s Witness faith did not support a well-founded fear of persecution in China. Furthermore, the record does not compel the conclusion that there is a pattern or practice of persecution of underground Christians in China. See Wakkary, 558 F.3d at 1060-62.

Finally, with respect to CAT relief, petitioner does not challenge the agency’s conclusion that there is no evidence of past torture. Furthermore, substantial evidence supports the finding that even if petitioner had credibly testified, he failed to show that it is more likely than not that he would be tortured if returned to China. See id. at 1067-68.

PETITION FOR REVIEW DENIED.