Please note: This is a Sole Source Notification. Description of market research Agency performed to determine the availability of products or services that would meet the Agency’s needs: The SCDNR Shellfish Management Section proposed to use Oyster Castles as oyster substrate for large-scale oyster restoration projects located on Marine Corp Recruit Depot Parris Island. This material is proprietary and can only be purchased from Allied Concrete Company. No other company has rights to sell this material. We are projecting to purchase $51,000 of this material to deploy in the following year. Description of supplies, construction, information technology, and/or services Vendor will provide under the contract: Oyster Castles ; Detailed explanation why no other vendor’s supplies, construction, information technology, and/or services will meet the needs of the Agency: This oyster substrate has a proven track record of working on shoreline conditions similar to the shorelines identified for the restoration sites on MCRD Parris Island.