In compliance with section 17(b) of the Securities Act, we are disclosing that Longeveron Inc. (NASDAQ: LGVN) is a client of TraDigital Marketing Group, Inc. and LGVN has an agreement in place to compensate TraDigital Marketing Group, Inc., a monthly retainer fee of ten thousand USD, for publicly disseminating information about  Longeveron Inc. via website, email, and SMS, plus a one-time stock fee of 12,000 shares of common stock, restricted under Rule 144, payable in increments of 2,000 shares per month, for six months, for TraDigital Marketing Group, Inc., investor awareness and digital marketing services. The stock is eligible for sale starting on 08/22/2021. Although we are not obligated to sell our shares, for the purpose of this disclaimer, we suggest that you assume we will begin to sell all of our shares once the restriction is lifted on 08/22/2021. 

Investor awareness and investor relations services and programs are designed to help small-cap companies communicate their investment characteristics. TraDigital Marketing Group, Inc., investor awareness and advisory services include multimedia marketing and other digital marketing services.