Gemme Coin is an ERC-20 token that is used to operate Gem4me Market Space and give GMC holders various features and benefits.
The GMC token allows users to buy products online and offline; to pay for special merchant/customer privileges in your Smart Wallet or Market; to purchase financial services (including a cryptosignal subscription); to advertise in the Gem4me Market Space ecosystem.
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For more info, please view section 5 of WP