TPI Composites - Management

Management

William E. Siwek President & CEO, Director

William (Bill) Siwek has served as President of TPI Composites since May 2019 and assumed the role of Chief Executive Officer and was elected to the Board of Directors in May 2020. Bill started with TPI as our Chief Financial Officer in 2013. He previously served as the Chief Financial Officer for T.W. Lewis Company, an Arizona-based real estate investment company, Executive Vice President and Chief Financial Officer of Talisker Mountain, Inc., a real estate development company based in Park City, Utah and President and Chief Financial Officer of the Lyle Anderson Company, an Arizona-based real estate developer. Bill started his career with Arthur Andersen where he spent 18 years and was a Partner in both Audit and Business Consulting Divisions. Bill holds B.S. degrees in Accounting and Economics from University of Redlands, where he also served on the Board of Trustees and is currently on the Board of Directors of the American Clean Power Association.

Ryan Miller Chief Financial Officer

Ryan Miller joined TPI as Chief Financial Officer in May 2022. Prior to joining TPI, he was the Vice President and Chief Financial Officer of the Avionics Division of Collins Aerospace from November 2018 to February 2022. Mr. Miller served as the Vice President and Controller of the Commercial Systems Division of Rockwell Collins from April 2017 to November 2018 and Vice President, Investor Relations from October 2013 to April 2017. He served in various financial leadership roles at Rockwell Collins prior thereto and worked for Deloitte & Touche LLP as an audit manager. Mr. Miller holds a Bachelor of Arts degree in Accounting from the University of Northern Iowa and a Master of Business Administration from the University of Tennessee.

Chuck Stroo Chief Operating Officer

Chuck Stroo joined TPI as Chief Operating Officer in Nov of 2023. Prior to joining TPI, he spent almost 24 years with Collins Aerospace. Mr. Stroo served as the Vice President of Power & Controls Operations. In this role Mr. Stroo was responsible for creating the strategic direction and execution for 31 sites in 10 countries supporting a multi-billion dollar business. Prior to that, he served in a similar role as the Vice President of Avionics Operations. Chuck has his MBA from St. Ambrose University and his Bachelor of Science in Electrical Engineering from Iowa State University. He is also a Board Member for Kirkwood Community College.

Deane Ilukowicz Chief People Officer

Deane Ilukowicz has recently been promoted to the role of Chief People Officer. Ms. Ilukowicz previously held the position of Senior Vice President – Global Human Resources and prior to that, joined TPI as our Vice President of Global Human Resources in 2016. Prior to joining TPI, she was the Vice President of Organizational Effectiveness at TransUnion, Chief Human Resources Officer for Hypertherm, and held senior level roles at other financial services and manufacturing companies. Ms. Ilukowicz has an MBA from Wake Forest University and her bachelor’s degree in Social and Behavioral Science from The Johns Hopkins University. She also served as a Trustee for the Community College System of New Hampshire and provides free HR Consulting to nonprofit organizations.

Executive Sponsor, IDEA Council

Neil Jones Chief Quality Officer

Neil Jones joined TPI in August of 2023 as Chief Quality Officer. Prior to becoming an independent adviser/consultant, Neil spent well over a decade with Vestas Wind Systems in a variety of Quality leadership roles, with the last five years as Senior Vice President - Quality, Health, Safety and Environment. While with Vestas, Neil’s vision and leadership led to a significant improvement in the overall quality performance of the company, and he was instrumental in forging a strong quality culture. Before joining Vestas, Neil spent 20+ years in the Automotive Industry - nearly 2 decades at TRW Automotive later ZF Automotive with leadership roles in both the Engineering/Technology and Quality arenas - and later, in a senior quality leadership role at Eaton Automotive. Neil holds a bachelor’s degree with First Class Honours in Mechanical, Electrical and Fluid Dynamics Engineering from the University of Bath, Bath England and is a Six Sigma Blackbelt.

Adan Gossar Chief Accounting Officer

Adan Gossar joined us as our Chief Accounting Officer in July 2020. Mr. Gossar has 20+ years of progressive global experience driving growth for companies through acquisitions, accounting, operating and international experience within public, private and multinational organizations. Prior to joining TPI Mr. Gossar was the Chief Accounting Officer for Reef Technology. Prior to his time at Reef, Mr. Gossar held the position of Corporate Controller at both Veritiv (Fortune 500®) and Allconnect Inc. Mr. Gossar also worked at AGCO (Fortune 500®), Witness Systems, PRG-Schultz, and PricewaterhouseCoopers as an external auditor. Mr. Gossar has his MBA from Georgia College & State University and a BBA in Accounting from the University of Nairobi. He is also a Certified Public Accountant, Certified Management Accountant, Certified in Financial Management and Chartered Global Management Accountant.

Theo Gibson Chief Information Officer

Theo Gibson joined TPI in September of 2019 as Chief Information Officer. Prior to joining TPI, Mr. Gibson spent 20 years with Honeywell. Most recently, Mr. Gibson was the Vice President of Information Technology and CIO Enterprise Applications for Corporate. Prior to this Mr. Gibson spent three years as the Vice President of IT and CIO Process Solutions. Mr. Gibson also spent two years on an expat assignment in Switzerland where he led IT for Build and EMEAI for the Aerospace Division. Prior to that, Mr. Gibson held various leadership roles in IT for multiple divisions in various locations from 1999 - 2012. Prior to Honeywell, Mr. Gibson also spent time working for Coca Cola and AMP Inc. Mr. Gibson has his Master of Science (MBA) in Management from the Georgia Institute of Technology and his BS in Industrial Engineering from West Virginia University.

Steven Fishbach General Counsel

Steve Fishbach has served as our General Counsel since January 2015. Prior to joining TPI, Mr. Fishbach served as SVP, Deputy General Counsel of Global Cash Access Holdings, Inc. (NYSE: GCA) since 2009 and in various senior roles in the legal department of Fidelity National Information Services, Inc./eFunds Corporation (NYSE: FIS) from 2005 to 2008. Prior to that, Mr. Fishbach practiced corporate and securities law at Squire Sanders (now Squire Patton Boggs) and other law firms in Phoenix, Arizona. Mr. Fishbach holds a B.A. degree in American Studies from Georgetown University and a juris doctor degree from William & Mary Law School.

Nicholas Warchol Senior Vice President – Technology & Engineering

Nicholas Warchol joined TPI in 2007 as a Senior Engineer and in November 2023 was promoted to Senior Vice President, Technology & Engineering. Most recently Nicholas was the Vice President, Global Technical Program Management, a role he has held at TPI since early 2020. Since assuming the VP role, Nicholas has focused on increasing the upstream collaboration with our customers and has been leading the Factory 2.0 project. Nicholas was previously the Global Technical Program Director for Vestas and before that he was the Engineering Director for China, responsible for all engineering and tooling activities, while supporting multiple customers during a period of rapid growth for TPI. Nicholas has a BS in Material Science Engineering from the Ohio State University and an MBA from St Ambrose University.

James G. Schimanski Senior Vice President – Global Supply Chain

James Schimanski joined TPI in May of 2016 as our Vice President of Global Supply Chain and was promoted to Senior Vice President of Global Supply Chain in May of 2020. James comes to TPI with over 25 years of experience in the Energy and Renewable businesses. Prior to joining TPI, he was the Vice President of Supply Chain for Ogin Energy and held leadership roles in Supply Chain for Alstom Power Wind and GE Energy Wind businesses. Over his extensive career with Alstom Power and General Electric, Mr. Schimanski has held various positions in supply chain, operations, manufacturing, materials, and quality in both the U.S., Europe and Asia.

He received his bachelor’s degree in business management from Russell Sage College and is a Six Sigma Certified Master Black Belt.

Thomas Adams Senior Vice President – Wind

Thomas (Tom) Adams joined TPI in February of 2018 as Vice President, Global Program Management and in February 2020 was promoted to Senior Vice President, Wind. Tom’s responsibilities include TPI’s commercial team managing the company’s customer relationships across its portfolio of wind blade supply agreements. Tom has over 25 years of business development, commercial management, and operations experience in the energy sector. Prior to TPI, he served as Vice President, Power Business Development for ABS Group, an international consultancy and certification firm and led the teams responsible for certifying offshore wind farms in Europe and the first offshore wind farm in the US. Prior to this, he led business development and commercial operations for 9 years at Wood Group’s power plant engineering, construction, and maintenance businesses, and its global power services joint venture with Siemens, EthosEnergy. Earlier in his career, Tom worked in operations and commercial roles in the energy services sector for both private equity backed start-ups and international energy firms. He holds a Bachelor of Science in Mechanical Engineering from the University of California, Davis.

Gökhan Serdar Senior Vice President – Turkey

In December 2021 Gökhan Serdar was promoted to Senior Vice President, Turkey. Gökhan joined TPI in 2014 as Chief Financial Officer of EMEA; he helped the turnaround and growth of the Turkey operations and the team. He was appointed as Vice President EMEA in 2019, played a key role in stabilizing and strengthening the Turkey operation and improving overall performance of the region. Under his leadership, the Turkey team has provided significant operational support to several of TPI’s other regions, most notably the India greenfield launch.

Prior to joining TPI, he served in several senior financial and operational positions within the Yasar Group companies, including bottled water, beverage, paint, food, and agribusiness operations. Prior to joining Yasar Group, Gökhan worked in public accounting for Arthur Andersen and Ernst & Young early in his career.

Gökhan holds a BS degree in Management, and he is a certified public accountant.

Gordon Davis Senior Vice President – Mexico

Gordon Davis joined TPI as Senior Vice President, Mexico in May of 2024. Gordon comes to the role with more than 25 years of operational experience. Most recently he was the Vice President, Operations, for ATI Corporation, Forged Products Business Unit. In this role he provided leadership to multi-site operations comprised of five sites and 1,200+ associates. Gordon spent 10 years working for Viking Pump, a unit of IDEX Corporation as the Vice President, Operations. He spent nearly 15 years working for Rockwell Collins in a variety of operational roles across the time he worked there. Gordon also served in the US Navy and Naval Reserve as well as the Iowa Army National Guard. Gordon has his B.S. in Chemical Engineering and his M.S. in Material Science Engineering from Iowa State University. He is a Six Sigma Green Belt and Lean Master certified.