$GDMK and $COST: Global Diversified Marketing Group and Costco Wholesale Corp Enter Late Stage Discussions for Product Marketing Agreement News Link: https://www.globenewswire.com/news-release/2020/09/01/2086925/0/en/Global-Diversified-Marketing-Group-and-Costco-Wholesale-Corp-Enter-Late-Stage-Discussions-for-Product-Marketing-Agreement.html