Board of Directors

To read director biographies move the cursor over each directors names.

  • Guanglin Lai (Alan)
  • Trevor Burt
    (Deputy Chairman)
    Trevor Burt

    Trevor Burt

    Deputy Chairman

    Trevor Burt joined the PGG Wrightson Board on 11 December 2012, and was appointed as Deputy Chairman on 11 August 2014. Trevor has had extensive international experience in the industrial gas industry, joining BOC gases New Zealand in 1986 and retiring from the Executive Board of Linde AG in 2007 (Linde AG acquired BOC in 2006). During his time with BOC, he served as Managing Director China, Managing Director North Asia and later president for North America. As an executive Board member for Linde AG his accountabilities included overall responsibility for Asia-Pacific operations. In addition to chairing Ngai Tahu Holding Corporation Limited and Lyttelton Port Company Limited, Trevor is also a director on a number of other well-known New Zealand businesses including Silver Fern Farms Limited, Landpower Holdings Limited and Mainpower New Zealand Limited. He holds a Bachelor’s degree in Science from Canterbury University, and has completed postgraduate studies in marketing and public relations.

  • Bruce Irvine
    Bruce Irvine

    Bruce Irvine (Independent Director)

    BCom, LLB, FCA, FNZIM, AFInstD.

    Bruce Irvine was appointed to the PGG Wrightson Board on 24 June 2009 and is Chairman of the Audit Committee. Bruce was Managing Partner at Deloitte Limited Christchurch from 1995 to 2007 before his retirement in May 2008. He now acts as an independent director on various boards including: Chair of Christchurch City Holdings Limited and Heartland Bank Limited and subsidiaries; Director of Canterbury Business Recovery Group Limited, House of Travel Holdings Limited, Godfrey Hirst NZ Limited and subsidiaries, Market Gardeners Limited and subsidiaries, Rakon Limited and subsidiaries, Scenic Circle Hotels Limited and Skope Industries Limited.

  • John Nichol

    John Nichol (Independent Director)


    John Nichol was appointed to the PGG Wrightson Board on 22 October 2013. John has been Managing Director of Optica Life Accessories Limited for the past 11 years. Prior to that he held a number of executive roles within the banking and finance sector and for 10 years was Managing Director of the investment company, Broadway Industries Limited.

    He has been a director of a number of businesses within the primary sector including Fortex Group Limited, The New Zealand Salmon Company Limited, Alpine Dairy Products Limited, Craigpine Timber Limited, the New Zealand Dairy Board and The New Zealand Merino Company Limited. He has also been a director of a number of significant other New Zealand businesses including New Zealand Post Limited and State Insurance Limited.

  • Lim Siang (Ronald) Seah
    Lim Siang (Ronald) Seah

    Lim Siang (Ronald) Seah (Independent Director)
    B.Soc.Sc (Hons in Economics)

    Ronald Seah was appointed to the PGG Wrightson Board on 4 December 2012. Ronald is a Singaporean with a background in banking and funds management. His fund management career spanned 26 years with the AIG group of companies in Singapore, serving as Chairman of AIG Global Investment Corporation (Singapore) Limited until 2005. He is currently serving as independent director of a number of listed Singaporean companies including Yanlord Land Group Limited (Chairman of the Audit Committee), Global Investments Limited (Chairman of the Remuneration Committee), M&C Reit Management Limited and M&C Business Trust Management Limited (Chairman of the Risk Management Committee) and Telechoice International Limited. Ronald holds a Bachelor of Social Science Degree with Honours in Economics from the University of Singapore.

  • Wai Yip (Patrick) Tsang
    Wai Yip (Patrick) Tsang

    Wai Yip (Patrick) Tsang
    FCPA, FCCA, ACA, BA (Hons)

    Patrick Tsang was appointed to the PGG Wrightson Board on 4 December 2012. Patrick is the Chief Financial Officer for Agria Corporation (the parent company of PGG Wrightson’s largest shareholder Agria (Singapore) Pte Limited) and began his career with PricewaterhouseCoopers as an auditor. He has held finance roles in a number of companies listed on the main board of the Hong Kong Stock Exchange, including China Resources Enterprises Limited and Tianjin Development Holdings Limited. Patrick is currently a director of China Pipe Group Limited, a Hong Kong listed company. He has over 20 years of experience in auditing, accounting, investor relations and corporate finance including initial public offerings, restructuring and merger and acquisition transactions. Patrick holds a Bachelor’s degree in Accountancy (Honours) and is a fellow member of the Hong Kong Institute of Certified Public Accountants, a fellow member of Association of Chartered Certified Accountants and a member of the Institute of Chartered Accountants in England and Wales.

  • Kean Seng U
    Kean Seng U

    Kean Seng U
    LLB (Hons), B.Ec

    Kean Seng U was appointed to the PGG Wrightson Board on 4 December 2012. Kean Seng is Head of Corporate and Legal Affairs for Agria Corporation, a role he has held since December 2008. He has extensive experience in advising multi-national corporations and sovereign entities on direct investments in The People’s Republic of China as well as offshore mergers and acquisitions of foreign assets by entities of The People’s Republic of China. Kean Seng previously practiced as a partner at Singaporean law firm, Shooklin & Bok LLP, focused on East Asia, and he led a corporate finance team in Allen & Overy Shooklin & Bok, JLV, an international law venture partnership with London based Allen & Overy LLP. Kean Seng sits as an independent and non-executive director of several public listed corporations. He received a Bachelor of Laws (Honours) degree from Monash University (Australia). He is a Barrister and Solicitor, Supreme Court of Victoria, Australia; Advocate and Solicitor, Supreme Court of Singapore and Solicitor of England and Wales. In addition to his extensive legal knowledge, Kean Seng is also a qualified economist, having completed his degree majoring in Economics and Accounting, B.Ec at Monash University, Australia.


To ensure efficiency, the Board has delegated to the Chief Executive Officer and subsidiary company boards the day to day management and leadership of the Group.


The Board has delegated some of its powers to Board operating committees – the Audit Committee and the Remuneration and Appointments Committee. The committees are made up of a minimum of three non-executive Director members and each committee has a written board-approved charter which outlines that committee’s authority, duties, responsibilities and relationship with the board. The current members of the committees are set out below:

Audit Committee Remuneration and Appointments Committee
Bruce Irvine (Chairman) Alan Lai (Chairman)
Patrick Tsang Bruce Irvine
John Nichol Patrick Tsang
  Kean Seng U
  Ronald Seah
  Trevor Burt
  John Nichol

Click here to view the Group Leadership Team.