ASI’s Board of Directors

ASI’s Board consists of two Directors from each of Production and Transformation, Industrial Users and Civil Society membership classes, elected by all ASI members, plus two Independent Directors to be appointed by the elected Board.

The current Directors are:

  • Daniel Weston (Chair): General Counsel & Global Head of Corporate Affairs, Nespresso
  • Gerard Bos: Director, Global Business and Biodiversity Programme, IUCN
  • Sasha Courville: Head of Social Innovation, National Australia Bank
  • Tolga Egrilmezer: Vice President, Sales & Marketing, Rio Tinto Aluminium
  • Pippa Howard: Director, Extractives and Development Infrastructure Program, Fauna & Flora International
  • Anita Roper: Director of Yarra Valley Water and the Stroke Association of Victoria
  • Marcel van der Sluijs: Managing Director, Hermeta Metaalwaren BV
  • Kenneth Willings: Senior Vice President, Health, Safety & Environmental, Aleris

About the ASI Directors

Click the tabs to see bios of the Board members. The bios are presented alphabetically by last name.

Tolga Egrilmezer, Vice President, Sales & Marketing, Rio Tinto Aluminium

Tolga Egrilmezer is an experienced global executive with extensive experience in the aluminium industry. Tolga’s most recent experience was for the Sapa Group, a world leader in aluminium solutions. He joined Sapa Group in 2002 and held increasingly senior executive roles reflecting his breadth of experience in commercial, business transformation and operations, culminating in his appointment as a member of the Sapa Executive Board in 2011. His experience includes serving as President of Sapa Asia based in Shanghai, with responsibility for Sapa’s P&L in China, Vietnam and India and its sales network in South Korea and Japan. Tolga was Vice Chairman of the Board of Directrors in Sapa Group’s joint venture in China with Chinalco 2011 – 2015. He also established Sapa’s commercial excellence platforms, created Sapa’s global strategic accounts division and led its global R&D centers in Europe, China and North America.


Kenneth Willings, Senior Vice President, Health, Safety & Environmental, Aleris

Mr. Willings has governance and program development experience in the Aluminum and Chemical industries. This experience includes the setting of corporate policies, initiatives, and the development and implementation of audit programs regarding Health, Safety, Environment, Transportation, and Product Compliance/Stewardship aspects for the multiple manufacturing organizations. In addition, he has engaged with professional and trade associations regarding development and implementation of environmental regulations at the local, state and federal levels.

Mr. Willings has served as Senior Vice President, Health, Safety and Environmental since October 2009 at Aleris. Prior to that, he served as Vice President, HS&E since joining Aleris in December 2004. Mr. Willings has more than 35 years of EHS experience in the manufacturing industry, including plant and corporate level positions. He has been an active member in industry trade associations and EHS professional organizations throughout his career and is presently active in Aluminum Association committees. Mr. Willings earned his Bachelor’s Degree from Illinois State University.

Marcel van der Sluijs, Managing Director, Hermeta Metaalwaren BV

Marcel van der Sluijs has been Managing Director at Hermeta Group since 2014, a Board Member of VNO-NCW (The Confederation of Netherlands Industry and Employers) since 2019, and has held Board and Director positions in several companies in the construction and building sector, among others, over the past two decades. He has a Master of Science degree in Business/managerial Economics from Erasmus University, Rotterdam.

For years, the construction industry has fascinated Marcel van der Sluijs, in managing small and large organizations, organizational changes, strategy development and implementation. It is the interplay of people, with all their limitations, that always ensures that we can realize surprisingly beautiful and complex products and structures.

Marcel’s specialty is combining strong attention to the human factor in organizations with the rational side of business operations. He has experience in directing and guiding large groups of people and he’s able to give substance to organizational changes in an empathetic, passionate, personal and humorous way. Intrinsic drive for sustainability and human capital.


Daniel Weston, General Counsel & Global Head of Corporate Affairs, Nespresso

Daniel joined Nespresso in April 2011, and took responsibility for sustainability in January 2015. In addition to his role as General Counsel of Nespresso, he recently led its Corporate Communications function for a 15-month period, and since January 2015 has also been Nespresso’s CSV Director (Creating Shared Value). He is also a Board Member and a member of the Investment Committee of the Nestlé Swiss Pension Funds.

In addition to his legal background (with particular strengths in antitrust, licensing and intellectual property enforcement), Daniel also has commercial management experience, having previously led a life science business as well as having led the negotiation of major pharmaceutical licensing deals.

Prior to joining Nestlé in 2007, Daniel worked for Novartis (in both its pharmaceuticals and consumer health businesses) and Johnson & Johnson, having previously spent 8 years with City law firms in London. He also worked for 9 months for a medical and educational NGO in Rwanda after his legal studies.

Daniel is a British citizen, a Solicitor of the High Court of England & Wales and a CEDR accredited mediator. He is a graduate of Leicester University and Guildford Law School in the UK, and Vlerick Management School in Belgium.

Gerard Bos, Director Global Business and Biodiversity Programme, IUCN

Gerard Bos is Director of the Global Business and Biodiversity Programme at the International Union of the Conservation of Nature (IUCN) since 2012. He is passionate for driving Transformational Change through multi-sector collaborative platforms with the aim to challenge current and future business models of the corporate sector. In order to get to a sustainable world that values and conserves nature, decision makers in business, civil and government need to systematically explore how to avoid or mitigate any negative impact and optimize the opportunities to scale up the positive impact on people and nature. This is at the heart of the Business engagement strategy at IUCN.

Gerard’s career started in the banking world with Barclays Bank, followed by 17 years in finance, procurement and supply chain roles in the building materials sector with Holcim. He has working experience on all continents, lived in many countries and speaks fluently five languages.


Pippa Howard, Director, Extractives and Development Infrastructure Program, Fauna & Flora International

Pippa Howard is a registered Professional Natural Scientist with over 25 years’ experience in biodiversity conservation, environmental management, impact assessment, development and sustainability. Currently Director of FFI’s Extractives and Development Infrastructure Programme, she directs FFI’s engagement with the corporate sector, leading programmes to both advise and steer biodiversity management. Pippa brokers collaboration and cooperation between business, government and civil society to address both practical and policy challenges to biodiversity conservation. Pippa lectures on the MPhil Conservation Leadership Programme at Cambridge University and is a mentor and tutor on the MBA programme at the Judge Business School.

Dr Sasha Courville, Head of Social Innovation, National Australia Bank

Sasha is the Head of Social Innovation at National Australia Bank.  She was previously the Executive Director of the ISEAL Alliance from 2005-2012, and has been a member of the Board of Directors and Treasurer for Water Stewardship Australia.  She brings expertise in next generation sustainability standards systems and online information platforms and tools to enhance access to information about standards, and extensive experience in strategy, multi-stakeholder engagement, natural capital and ecosystems services frameworks and shared value initiative design.


Anita Roper, Director of Yarra Valley Water and the Stroke Association of Victoria

Anita is an experienced board director and has focused on organisational governance roles since 2011. She is a Director of Yarra Valley Water and the Stroke Association of Victoria, and has previous been a Director of Pacific Hydro, Fitzroy Football Club and a Board Member of the Hazelwood Coal Mine Fire Inquiry. She has also served on numerous other advisory boards, councils and working groups including as a Board Member of the Women’s Network for a Sustainable Future and delegate to the World Business Council for Sustainable Development.
She has expertise in strategic, organisational and issues management with over 30 years’ experience in senior management roles working with business, governments, communities and multi-lateral agencies in Australia, Canada, the United Kingdom and the USA. She has worked on major development projects in Brazil, Guinea and Iceland. She works to build coalitions through dialogue and action with an emphasis on finding practical solutions in both community and business environments.

Her previous executive roles include CEO, Sustainability Victoria, Global Director Sustainability, Alcoa and COO and Acting Secretary General, of the International Council on Mining and Metals.

Board Minutes Summaries

The Board meets regularly via teleconference and in person, and summaries of the meeting minutes are published below.