Shell Chemicals Leadership Team

Thomas Casparie
Thomas Casparie

Executive Vice President Shell Chemicals

Thomas Casparie took up his role as Executive Vice President, Shell Chemicals on July 1, 2019.

In this role he is accountable for overseeing Royal Dutch Shell’s global chemicals business - and in particular - leadership of its ambitious growth strategy. Thomas provides strategic oversight, leadership and accountability for safety, commercial business and operations results. 

Prior to his current role, Thomas was Vice President Chemicals Americas, with responsibility for the Americas region of Shell’s Chemicals business since early 2017.

Thomas has been a part of Shell’s Chemicals Leadership Team since June 2012 when he was appointed Vice President for Chemicals Operations where he had responsibility for supply, logistics, customer centres and HSSE. He then became Vice President for Global Base Chemicals & New Business Development in February 2014.

Thomas joined Shell in 1996 after graduating from the University of Utrecht, Netherlands with a degree in Theoretical Physics. His first role was Retail Loyalty & Marketing Project Manager in Shell Netherlands. Subsequently, he held a variety of commercial, operational and marketing roles in the Retail business and in 2005, Thomas became the General Manager for the Dutch Retail Business. Before joining Chemicals, Thomas was General Manager, Retail Network Planning, with responsibility for strategy and planning for all Retail locations globally. He played a critical role in increasing Retail’s ability to grow in markets such as China, India, Russia and Indonesia.

Thomas is married with two children. Although originally from the Netherlands, the family considers London (UK) home. He is a member of the Windsor Leadership Trust and plays an active role in the community through various roles in the Arts scene. He also has a passion for cooking and football.

Dennis Cheong
Dennis Cheong

Vice President Chemicals Asia-Pacific, Global Ventures & New Business Development

Dennis is responsible for managing Shell’s Chemicals business in Asia-Pacific, including joint venture businesses in the region principally in China and Singapore. He also has shareholder accountability for Shell’s global lubes and fuels additives joint venture Infineum and Chemicals new business development activities globally. Dennis was appointed to this role in January 2018 and is based in Singapore.

Dennis has more than 28 years of experience in Shell, with assignments in Singapore, London and Beijing spanning a wide range of functions and downstream businesses. Prior to his current appointment, Dennis was Vice President Lubricants Supply Chain, responsible for managing Shell’s base-oil business and the safe, reliable and efficient production and supply of lubricants and greases around the world to customers. Before that, he was Downstream Business Director in China, responsible for growing the downstream fuels business in China and led the development of a world-scale integrated refining, petrochemicals and fuels marketing JV project. Dennis has strong experience in global strategy development, both in Oil Products Manufacturing and Supply, and in Chemicals. Dennis spent the first 15 years of his Shell career in the Chemicals business, in a broad range of commercial jobs across most of the Chemicals product lines.

Prior to joining Shell, he spent 7 years working for the Singapore government in public policy administration.

Dennis is from Singapore and has a degree in Chemical Engineering from Australia.

Dennis is married with 3 children. In his spare time, he enjoys nature, travel and jazz music.

Samia Nehme - VP Chemicals Europe and Africa
Samia Nehme

VP Chemicals Europe and Africa, Global Excellence and Product Stewardship

Samia held a number of technical, commercial, strategic and general management positions in Shell Upstream and Downstream. Samia was previously General Manager for Shell Base Chemicals Europe and more recently, she was VP Commercials & New Business Development for Europe & CIS for Shell Upstream.

She has worked in the UK, The Netherlands and US and has extensive experience in the Middle East, Africa and Asia. She holds a D.Phil. in Chemistry from Oxford University, further research in Cambridge University and the University of Massachusetts in the US. Samia is married and has two children; enjoys travel, mountains and reading.

Anne Anderson
Anne Anderson

Vice President, Shell Chemicals Americas

Anne took up the role of Vice President Chemicals Americas on July 1st 2019, with responsibility for the Americas region of Shell’s global chemicals business.

Prior to this role Anne was Vice President of Shell Aviation since 2014, where she successfully led Shell’s reliable supply of high quality aviation fuels and lubricants around the world.

Anne started her career as a chemical engineer in manufacturing and technology at Monsanto. After receiving her MBA, she transitioned from the technical community at Monsanto/Solutia through business development and marketing roles to become a Global Marketing Manager. In 2003, she became the Segment Leader for Honeywell’s Global Advanced Fibers and Composites business.

Anne joined Shell Chemicals in the United States in 2006 as the General Manager of PDO (Propanediol) and CorterraTM Polymers and Board Member for the Shell Chemicals Joint Venture: PTT PolyCanada in Montreal, Quebec. Since 2009, she has held roles with increasing responsibility in Shell’s Trading and Supply organization. Before her current position, she was the General Manager of Trading and Supply for Shell Oil Products in the U.S.

Anne regularly participates in events promoting the role of women in industry. In 2012, Anne was named one of the 50 Most Influential Women in Houston by Houston Woman Magazine. In 2016, she was presented the Distinguished Alumni Award by Olin Business School, Washington University in St Louis where she completed her MBA. 

Anne lives in Houston with her husband and son.

Emma Lewis - General Manager, Shell Chemicals Strategy, Shell Polymers
Emma Lewis

General Manager, Shell Chemicals Strategy, Shell Polymers

Emma is the General Manager for Shell Chemicals Strategy along with Shell Polymers. She has a performance based leadership style along with 20 years of experience in the Chemical industry, having served in a variety of manufacturing, sales, marketing, supply chain and strategy leadership positions, predominantly in the polymers space. Emma has lived and worked across the globe, in Europe, Asia, the Middle East, South America and the U.S. Prior to joining Shell in 2012, Emma worked for ExxonMobil.

Beyond her role, Emma leads mentoring circles for future women leaders across the Shell business, is a member of the American Chemistry Council Plastics Executive Committee and actively works to develop talent across the manufacturing and commercial teams.

Emma lives in Houston with her husband Charles, their 3 year old son Conor and their dogs Goober & Frankie. She enjoys spending time with her family & friends, traveling & is active in Houston’s dog rescue world.

Barbara Blum Associate General Counsel, Chemicals
Barbara Blum

Associate General Counsel, Chemicals

Barbara Blum took up her role as Associate General Counsel responsible for Shell Chemicals worldwide legal affairs in May 2017. She heads up a multi-jurisdictional team which provides legal advice in all areas of Shell Chemicals business including commercial contracting and project development. 

Barbara qualified as a solicitor with Slaughter and May in London where she worked on commercial and financing transactions (including periods in Paris and Hong Kong) before moving to Allen & Overy to specialise in project financing. Barbara joined Shell in 1998 and did several roles in London supporting Shell Treasury, Shell Capital and then Gas & Power working on projects in India and Mexico. She was also seconded to Sakhalin Energy Investment Company as the lead lawyer on the Phase 2 project financing.

In 2007, Barbara moved to the Hague as Associate General Counsel for Gas & Power, Africa supporting project development and governance activities across Africa. She then joined Shell Trading in London to set up the legal team supporting gas, power and emissions trading as well as supporting the SILs global LNG marketing business. In 2012, Barbara moved to Lagos Nigeria to lead the legal teams in Nigeria and Gabon supporting the Upstream business.

Barbara is married to Dennis with three grown up step children. In her spare time she enjoys cinema, the opera and trying to keep fit.

Shawn Cotton - Vice President Human Resources
Shawn Cotton

Vice President Human Resources

Shawn Cotton was appointed on August 15, 2017 as Vice President, Human Resource – Chemicals, based in Houston.

Shawn joined Shell in 1993 as an HR intern and started work full time in 1994 as an HR Analyst at the Shell Chemical Geismar Plant. He later transferred to California and worked as an HR Representative at the Martinez Refinery then moving to Supply & Distribution in Chicago. In 2001, he became HR Account Manager for the US Northeast Retail Region, based in Boston, and subsequently progressing to become HR Manager for North American Retail, in Houston, whereby he lead the transformation of the business from a direct to a wholesale retail model. 

In 2009, he transitioned to the Upstream side of RDS and became VP HR Policy, Processes and Systems for Upstream Americas supporting the various US based upstream businesses from a HR policy perspective.

In 2014, he transferred to The Hague and was appointed as VP HR Upstream International Exploration/Commercial. In this role, he provided HR leadership for the globalization of the Exploration business before moving to London and being appointed to the newly created global role as VP HR Exploration. In this role, he provided HR leadership for Exploration during the acquisition of British Gas.

Shawn has twin daughters, Max & Alex. When not spending time with his daughters, Shawn enjoys running, cooking and eating out.

Vice President Pennsylvania Chemicals
Hilary Mercer

Vice President Pennsylvania Chemicals

Hilary Mercer was appointed as Vice President Pennsylvania Chemicals on August 1, 2017.

Hilary was previously responsible for the Shell worldwide portfolio of integrated Gas Projects spanning Onshore and Floating LNG, Regassification and other gas related projects. She served as Executive Director for Shell’s Prelude project in, Geoje Island, South Korea and was instrumental in leading the project to successful sail-away.

Hilary joined Shell in the UK as a Maintenance Engineer at Stanlow refinery in 1987. In 1994, she moved to the Netherlands where she worked in concept engineering developing small scale LNG offerings. In 1997, she was appointed Lead Mechanical Engineer for Construction in Oman, after which she worked for Sakhalin Energy Investment Company Ltd., first as the Commercial Manager for the project and later as Construction Manager and Project Director. She was appointed Technical Director for Iraq South Gas Venture in 2009, supported the utility project within Pearl GTL in 2010, and served as LNG Project Director at Arrow Energy where she grew the company from start-up to a competent operating and development organization.

Hilary has a degree in Engineering Science from Oxford University, is a Fellow of the Institution of Mechanical Engineers and is actively engaged in the promotion of engineering as a profession both within and outside Shell including encouraging greater female participation in the industry.

Hilary is married to Ian Rogers a Shell civil engineer and describes her outside interests as mountaineering, ski mountaineering and horse riding in truly remote locations around the globe.

Commercial Team Leaders

Regional Commercial General Managers

  • Europe/Africa
    • General Manager Intermediates - Kate Johnson
    • General Manager Base Chemicals - Owen Price-James
  • Americas
    • General Manager Intermediates - Sean Clarry 
    • General Manager Lower Olefins - Ed Simpson
    • General Manager Phenol/Heavy Olefins and Aromatics - Zoe Baldwin
  • APME
    • General Manager Intermediates - Marieke Ten Have
    • General Manager Base Chemical - Ryan Wong

More in About Shell Chemicals

Our joint ventures

As well as operating a number of wholly-owned manufacturing facilities and marketing a broad range of base chemicals and intermediates through six product lines, Shell chemicals companies participate in a number of strategic joint ventures.

Our growth projects

We will invest in our existing world-scale plants, to further increase their capacity and efficiency. And we will pursue options to invest in the building of new large-scale plants.