Tiffany & Co. is the latest high-profile brand to resign from one of the world’s largest anticounterfeiting groups after the organization admitted Chinese e-commerce giant Alibaba Group Holding Ltd. as a member in April.

In an email to the International AntiCounterfeiting Coalition on Wednesday, Tiffany & Co. said it was stepping off the board and withdrawing from the Washington, D.C.-based coalition as a member. The letter, reviewed by The Wall Street Journal, didn’t cite a reason for the departure.

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