Frank Bozich is President and Chief Executive Officer of Trinseo, a global materials solutions provider and manufacturer of plastics, latex binders, and synthetic rubber.

Bozich joined Trinseo on March 4, 2019. In his role as Trinseo's President and CEO, he leads the company in delivering innovative and sustainable solutions to help our customers create products that are intrinsic to how we live our lives – across a wide range of end-markets, including automotive, consumer electronics, appliances, medical devices, electrical, carpet, paper and board, building and construction, and tires.

Bozich was most recently President and CEO of SI Group, a global specialty chemical company, from 2013-2019. SI Group is headquartered in Schenectady, New York, and operates 30 manufacturing facilities on five continents with more than $2 billion in annual sales and over 3,000 employees worldwide. Prior to SI Group, he was President of BASF’s catalyst division which was the global leader in chemical and mobile emission catalysts with sales of more than $7 billion and 5,000 employees.

Bozich serves as a director of OGE Energy Corp. (NYSE: OGE), an Oklahoma-based gas and electric utility company. He previously served on the Board of Trustees of Ellis Medicine, a hospital in Schenectady, New York.

Bozich holds a Bachelor of Science in Chemistry and a Master of Business Administration from the University of Chicago, as well as a Master of Science in Chemistry from the University of Illinois.

Angelo Chaclas was named Senior Vice President and Chief Legal Officer in January 1, 2015. In his role, Chaclas supports all capital markets, transactional, compliance, commercial, regulatory, governance, intellectual property, and other operational activities of the company worldwide. This includes legal responsibility for all governance, capital market, strategic, SEC filing and employment activities, cap and applicable compliance in all regulatory jurisdictions.

Chaclas brings to the company a varied career background in both legal and engineering disciplines. Chaclas joined Trinseo (formerly known as Styron) in December 2010 as the Associate General Counsel –Division Counsel & Chief IP Counsel, which included holding global responsibility for all intellectual property matters, working closely with the Research and Development organization on patents, trade secrets, trademarks, technology licensing agreements, and joint development agreements. He also managed commercial legal activities for several Styron businesses, and established internal best practices and optimized law firm relationships during the company’s start-up phase.

Prior to joining Trinseo, Chaclas served as Deputy General Counsel and General Counsel for the software division of Pitney Bowes while leading its Intellectual Property, Technology Law, and Procurement global legal functions.

From 2001 to 2010, Chaclas served on the Board of Directors for the Intellectual Property Owners Association, holding a position on the Executive Committee from 2008 to 2010 in addition to Treasurer during his last year. Chaclas has also served on the Board of Directors for the Association of Corporate Patent Counsel from 2003 to 2013. During that time, Chaclas held a seat on the Executive Committee from 2008 until 2011 in addition to his role as President in 2011. Today, Chaclas serves on the Board of Directors for the Unionville Sports Council as President.

Chaclas holds a Bachelor of Science in Mechanical Engineering from Tufts University and a Juris Doctor from Pace University School of Law.

Francesca Reverberi was name Senior Vice President, Synthetic Rubber in May 2021, after having served as Vice President, Engineered Materials & Synthetic Rubber. In this role, Reverberi will be responsible leading the Synthetic Rubber Business.

Reverberi’s tenure at Trinseo also includes the position of Global Business Director of Performance Plastics, where she had responsibility for the Automotive, Consumer Electronics, Medical Sheet and Extrusion, and Building and Construction plastics markets. Prior to that Reverberi also served as Business Director of Base Plastics and Global Business Director for Synthetic Rubber.

Reverberi joined Trinseo following the Company’s carve-out from The Dow Chemical Company in June 2011. During her time at Dow, Reverberi served as Product Director for Emulsion Polymers, Europe and the Americas, as well as Commercial Manager in Dow Hydrocarbons Aromatics and Derivatives in Europe, including responsibilities for the C4’s business and held several positions in other specialty businesses such as Water Solutions and Chelants.

Reverberi earned a Bachelor and Master of Science in Chemical Engineering from Politecnico di Milano. She holds a Master of Business Administration from SDA Bocconi.

Rainer Schewe joined the Company in April 2020 as Vice President of Supply Chain Services. Prior to joining Trinseo, Schewe served as Executive Vice President and Chief Supply Chain Officer for A. Schulman, Inc. (now LyondellBasell Industries). Prior to this role, he served as Vice President and Business Unit Director for Schulman’s Custom Performance Colors business in EMEA.

Schewe holds a degree as a State-Certified Engineer in Chemical Engineering from Fresenius Akademie Wiesbaden in Germany, and an Apprenticeship as a Chemical Laboratory Technician from RWTH Aachen in Germany.

Nicolas Joly was named Vice President of Plastics & Feedstocks in May 2020. Previously, Joly served as Trinseo’s Global Director of Polystyrene & Feedstocks since September 2017 after serving as Trinseo’s Integrated Business Services Director for Europe, Middle East, and Africa region since 2015.

He joined Trinseo in 2010 as Global Market Manager for Appliances, Electrical & Lighting, and Sheet. In 2012, Joly was named Product Manager for Polycarbonate Compounds and Blends, before moving on to become Global Product Director for Polycarbonate in 2013. He previously worked at The Dow Chemical Company in 2002 where he held a series of sales and marketing roles in Plastics. He began his career at Procter & Gamble in 2001

Joly holds a Master of Science in Chemical Engineering from CPE Lyon.

Andre Lanning was named Vice President of Strategy, Corporate Development & Marketing Communication for Trinseo in May 2020. Previously, Lanning served as Global Business Director for Trinseo’s Synthetic Rubber Business.

Lanning brings thirty years of chemical industry experience to Trinseo, joining the business from Advanced Refining Technologies (ART), where he served as Managing Director/CEO of ART Hydroprocessing; a joint venture between WR Grace and Chevron, based in the United States. Throughout his career, Lanning has held several senior business leadership roles, including in the Pulp & Paper, Fertilizer, and Refining Catalyst sectors.

Lanning holds a Master of Science in Chemical Engineering from the University of Twente, The Netherlands, and a Master of Business Administration from TSM Business School.