Introduction Presentation

Contents PCI Company Background Mission, Vision, Values Menu of Services Safety Contact

Company Background Manufacturer of composite products since 1973 Developer and manufacturer of composite products for the wind industry for over 10 years Expansion of field service capabilities to offer a full package of blade repair services uptower and on the ground Headquarters and Factory located in Compton, CA (Los Angeles County) Field Offices in Pratt, KS and Abilene, TX High level technical experts in blade inspection, repair, root cause analysis, and failure investigation. With 4 engineers on staff and decades of combined composites experience.

Company Mission, Vision & Values Our vision To be a world class composite service company in the wind energy industry that provides opportunity and growth for all stakeholders, while building a sustainable future we can all be proud of. Our Mission Create and sustain an environment that: Anticipates and fulfills our customers current and future needs while providing dependable services Promotes personal and professional growth and a healthy work/life balance for employees Upholds the highest safety standards Drives continual improvement of processes and technology Supports Synergistic relationships with stakeholders (customers, employees, suppliers, shareholders, community and family) Our Values Integrity Trustworthy, Ethical, Reliable, Transparent Quality of People Dependable, Professional, Knowledgeable, Conscientious, Passionate, Loyal, Compassionate, Resourceful Growth Innovative, Entrepreneurial, Aware, Adaptable, Inquisitive, Mentoring Unity of Purpose Team-oriented, Collaborative, Synergistic, Communicative, Serving, Inclusive, Understanding

Menu of Services: Blade Repair Highest Quality Blade Repair Repair erosion, cracks, wrinkles, chips, paint/gel coat wear, delaminations, disbonds, lightning damage, lightning protection system failures, and structural issues Maintain the structural integrity, aerodynamic performance and balance of the blades on all repairs Coordinate with your schedule to minimize down time Work with you to decide which defects need be repaired now and which defects can be repaired later For major structural damage, we will coordinate with engineers to develop the proper repair procedure

Safe & Effective Uptower Access The Asmus Type IV Platform is designed for use on utility-scale wind turbines for 360-degree access to the entire rotor blade, from tip to root. Best-In-Industry Access System: Rotate blades without de-rigging to access all 3 blades quickly 32 ft/min ascent & descent 3 workers plus equipment can work up-tower, maximizing crew efficiency Platform is suspended firmly against tower work safely in high winds with no contact to blade (up to 11 m/s winds) Compatible with all major wind turbine manufacturers in the USA Eliminate the need for cranes to do blade inspections and repairs For minor repair or inspections, we utilize the Spider 2m basket to provide quick set-up and access to blades

Up Tower Blade Repair

Importance of Quality Repairs The First Time Previous repair done improperly using large amounts of body filler and not sanded to blade contour causing premature repair failure and poor blade aerodynamics This previous repair work was spotted during telephotography inspection. The laminates were improperly repaired resulting in cracking after just 2 years of operation.

Menu of Services: Blade Cleaning Up tower blade cleaning/inspection package: Pressure-wash the blades to rapidly deep clean the blade Can improve power output up to 8% by improving blade aerodynamic efficiency Provide detailed inspection report documenting anomalies and repair recommendations Inspection and testing of lightning protection system, ensure proper grounding and drain holes are clear to prevent blow outs

Menu of Services: Telephotography Inspection On Ground Telephotography Inspections: 3-4 turbines completed per day Ideal for end-of-warranty or volume inspections on a rotating basis Detailed report of findings with high quality images included Blade/Nacelle/Hub failure inspection and analysis from safe distance

Menu of Services -Other Construction & Remediation Support: Developer/Owner Support During Construction Phase Quality Control Incoming Blade Inspections Blade Repairs & Touch-Ups, Etc. Other Services Expert Witness & Other Litigation Support Insurance Consulting Application of leading edge protection tapes and hydrophobic Teflon paints Rotor Balancing - Calculations & Blade Mass Additions Telephotography Equipment Sales & Inspection Training

Safety Safety is our #1 priority Excellent Safety Record: ZERO incidents in history of PCI Field Service Division We maintain the highest safety standards in all aspects of our work: Equipment Personnel Procedures Company Culture We offer and require continuous safety training, procedure development, and standardization for all of our activities

Contact Steve Potter, CCT Field Services General Manager spotter@performancecomposites.com Telephone: (920) 254-2733 Craig Guthrie, CCT-VIP Technical Manager cguthrie@performancecomposites.com Telephone: (661) 400-8399 Francis Hu, PE President fhu@performancecomposites.com Telephone: (310) 328-6661 Ext. 213