FCS3

Attachment I

Client References List at least three (3) client references that can attest to the Bidder’s qualifications to fulfill the requirements of the Scope of Work. List the most recent first. Client references must also be provided for any subcontractors identified in the Bidder’s response. Duplicate and attach additional pages as necessary. BIDDER / SUBCONTRACTOR’S NAME: DK Enterprises / Circular Sustainability Innovation REFERENCE 1 Name of Firm DK Enterprises Street Address 2569 Heritage Park Ln City Sacramento State CA Zip Code 95835 Contact Person Denise Kennedy Telephone Number (916) 706-3869 Dates of Service 2020 and 2021 Cost of Service Brief Description of Service Provided Technical services on waste and water contaminations limit on Federal (EPA) and California regulations. Technical support for classification and using crumb rubber as feedstock. REFERENCE 2 Name of Firm DOE/NREL National Renewable Energy Laboratory Street Address 15013 Denver West City State Zip Code Golden CO 80401 Contact Person Telephone Number 303-275-3000 Dates of Service Cost of Service 2019-present Brief Description of Service Provided Technical review and grade the DOE grants applications of new technologies based on sustainable reusable plastics and rubber. Member of review committee to recommend the short list. REFERENCE 3

Name of Firm Upcycled Materials Street Address 1101 Sparrow Lane

City Lakeway

State TX

Zip Code 78734

Contact Person Stephen Lautenschlager

Telephone Number (951) 233-5326

Dates of Service

Cost of Service

2018-present Brief Description of Service Provided Changing the rubber products formulation using devulcanized rubber instead of virgin rubber

If three references cannot be provided, explain why: