(Yicai) Aug. 26 -- PDD Holdings reported better-than-expected earnings in the second quarter of the year. However, the co-chief executive officer of the Chinese owner of discount shopping sites Temu and Pinduoduo warned about unsustainable performance.

(Reuters) -Chinese e-commerce firm PDD Holdings beat market estimates for quarterly revenue on Monday, signaling a rebound in domestic demand and improved growth in its international business despite global trade uncertainties.

PDD Holdings Monday posted second-quarter results that overshot analysts’ estimates even as the parent of the Temu shopping site was hit during the period by the end of a key U.S. tariff exemption.