WENZHOU, China, Oct. 13, 2021 /PRNewswire/ -- ZK International Group Co., Ltd's (Nasdaq: ZKIN) ("ZKIN", "ZK International" or the "Company"), and its subsidiary xSigma Collectibles ("xSigma"), is pleased to announce that Brian Tracy, author of the bestselling book "The Psychology of Achievement", will launch a charitable NFT collection on MaximNFT. MaximNFT is an upcoming NFT marketplace launched by xSigma in exclusive partnership with Maxim magazine.
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