More Projects – DRILL TECH DRILLING & SHORING, INC.

Mayo Clinic Tunnel

Apex, Mining & Tunneling Projects, Projects, Subsidiaries, Tunneling Projects mining and tunneling, mining and tunneling projects

Phoenix, AZ Contract Value: $1.6M Owner: Mayo Clinic General Contractor: Blount Contracting, Inc. (Subcontractor to DPR Construction) Scopes: Tunnel

Newell Creek Dam

Projects, Spotlight Project

Contract Value: Owner: General Contractor: Scopes:

Northside Interceptor Tunnel

Apex, Mining & Tunneling Projects, Projects, Subsidiaries, Tunneling Projects mining and tunneling, mining and tunneling projects

Akron, OH Contract Value: $5.9M Owner: City of Akron General Contractor: Granite Scopes: Tunnels

Oroville Spillways Emergency

Earth Retention Projects, Projects, Spotlight Project Earth Retention, earth retention project

Oroville, CA Contract Value: $30.3M Owner: California Department of Water Resources General Contractor: Kiewit Infrastructure West Co. Scopes: Secant Piles