Leadership Team

Our Executive Management at the National Gas Company of Trinidad and Tobago Limited.

Mark Loquan

2016-09-01_mark-loquanOn 1 September 2016, Mr. Mark Loquan assumed office as President of The National Gas Company of Trinidad and Tobago Limited (NGC).

A Chemical Engineer by profession, Mr. Loquan acquired an MBA in 1990 from the Fuqua School of Business at Duke University, and received training in Executive Leadership and Management from Cornell University and IESE Business School (University of Navarra).

Mr. Loquan has over 30 years’ experience in the petrochemical industry. In 1982, he began his career in the energy sector as a Process Engineer at Trinidad Nitrogen Co. Ltd. He moved through various leadership positions before being appointed as the first local President of Hydro Agri Trinidad (now Yara Trinidad Ltd.) in 2002. In 2009, he was appointed President, Upstream Business Development for Angola/Sub-Saharan Africa at Yara International. Mr. Loquan moved to Australia three years later, where he served as CEO of Yara Pilbara.

One of 50 Distinguished UWI Alumni Awardees, Mr. Loquan is a former Director of the Arthur Lok Jack Graduate School of Business and the Copyright Organisation of Trinidad and Tobago (COTT), former Vice Chairman of the Point Lisas Energy Association (PLEA), and former Advisory Council Member for Arts, Letters, Culture and Public Affairs at the University of Trinidad and Tobago (UTT). A passionate pannist, he is also an Honorary Founding Director of the nonprofit organisation the Music Literacy Trust, and served as the Musical Director of the first resident steelband in Perth, Western Australia – Perth Pandemix.


  • B.Sc. Chemical Engineering – The University of the West Indies
  • MBA – Duke University, Fuqua School of Business, North Carolina

Ronald Adams
Vice President, Operations

Ronald AdamsRonald Adams assumed the office of VP Gas Transmission and Distribution at NGC in 2016, after serving as Operations Manager at NGC CNG Company Limited.

Mr. Adams is a Senior Operations and Business Development Executive with more than twenty-five years of experience in the energy business, having held senior positions in Operations Management, Process Engineering Management and Specialty Chemicals Applications Management in large organizations in Trinidad and the USA. Before joining the NGC Group in 2014, Mr. Adams held portfolios at Athlon Solutions (previously Champion Technologies), PETROTRIN, Ashland Chemicals, NUCOR Iron Carbide and PCS Nitrogen Trinidad Ltd.


  • B.Sc. Chemical Engineering – University of the West Indies
  • MBA (specialization in Strategic Planning) – Heriot Watt University, Edinburgh School of Business

Professional Affiliations

  • The Energy Chamber of Trinidad and Tobago
  • The Society of Petroleum Engineers
  • The American Institute of Chemical Engineers

Narinejit Pariag
Vice President, Finance and Information Management

Narinejit PariagNarinejit Pariag assumed the position of Vice President, Finance, Information and Management at NGC in March 2016.

Prior to that he held the position of Vice President, Finance and Administration at National Energy Corporation of Trinidad and Tobago Limited, a 100% owned subsidiary of NGC. Mr Pariag has over 20 years’ experience in the field of Finance and Accounting, having previously worked for private sector corporations.

He is a Fellow of the Chartered Association of Certified Accountants (FCCA), a member of the Institute of Chartered Accountants of Trinidad and Tobago (ICATT), and holds an Executive Masters in Business Administration.

Olave Maria Thorne
Vice President, Corporate Compliance and Governance

Olave Maria ThorneMs. Thorne joined the Company in 1985 as an Assistant Legal Advisor. She went on to hold the position of Head, Legal Services and later, Manager Legal and Commercial Services for a number of years before being appointed to the position of Vice President, Legal and Corporate Management. She assumed her current portfolio in November 2016.

Before joining NGC, Ms. Thorne worked as an associate with a legal firm and also as Company Secretary and Legal Advisor to the Emile Elias Group of Companies.


  • LLB – The University of the West Indies
  • LEC – Hugh Wooding Law School – The University of the West Indies

Edmund Subryan
Vice President, Legal and Corporate Affairs

Edmund SubryanMr. Subryan joined NGC in 2010 as Legal Counsel and was soon thereafter appointed Manager of Legal and Corporate Secretariat Services. In addition to fulfilling the responsibilities of this portfolio, he served as Company Secretary for the National Energy Skills Centre (NESC) from January 2011 to present, Company Secretary for Trinidad and Tobago LNG Limited, NGC Trinidad and Tobago LNG Limited and NGC E&P Investments Limited from June 2013 to present and Company Secretary for NGC CNG Company Limited and Trinidad and Tobago NGL Limited from September 2013 to present.

Mr. Subryan came to NGC from M.G. Daly and Partners, where he worked as a Partner in the Conveyancing and Commercial Department, after moving through various positions at different firms.


  • Legal Education Certificate of Merit – Hugh Wooding Law School
  • Bachelor of Laws (LL.B) – University of London

Verlier Quan-Vie
Vice President, Commercial

Verlier Quan-VieVerlier Quan-Vie is a Commercial and Business Development Professional with over 23 years’ experience in the business sector. She has a diverse background spanning areas of risk management, commercial and business development in the Upstream, Midstream and Downstream of the Oil and Gas Sectors.

Ms. Quan-Vie began her career in the energy sector at the T&T Methanol Company (TTMC) in a technical role and subsequently moved into the Marketing/Commercial field. She has working experience with several high-level organisations, most notably the BG Group, Methanol Holdings Trinidad Limited and Maritime General Insurance Company Limited.

Prior to joining NGC, Ms. Quan-Vie held the position of Commercial Manager at the BG Group. There, she provided commercial strategy and management expertise in all aspects of the natural gas value chain in Trinidad, UK, Nigeria and Tanzania. She worked as the Commercial Lead on Business Development & Exploration activities in Trinidad and Nigeria for various Upstream Licensing Bid Rounds, Joint Venture Farm-in deals and other commercial agreements. She has effectively managed Production Sharing Contracts and Joint Venture agreements to ensure value creation for all parties.


  • B.Sc. Industrial Engineering – The University of the West Indies, St. Augustine Campus
  • Postgraduate Diploma in Business Administration (Oil & Gas) – Robert Gordon University, Aberdeen
  • Associate in Risk Management with the Insurance Institute of America
  • Associate of the Chartered Insurance Institute (ACII), UK

Professional Affiliations

  • Member of the International Association for Contract & Commercial Management (IACCM)

Carol Sylvester-London
Manager, Human Resources Division

Carol LondonMrs. Sylvester-London joined NGC in 1995 and served as an Information Assistant and a Training Officer before being promoted to the post of Head, Human Resource Planning in 2001. As part of her portfolio, Ms. Sylvester-London was responsible for, inter alia, identifying and tracking manpower requirements, developing, recommending and evaluating recruitment strategies, policies and procedures and implementing procedures to ensure the achievement of the organization’s manpower objectives.

In 2015, Mrs. Sylvester-London was appointed Manager, Human Resources Division (Ag.) with responsibility for directing the performance of the HR Division to ensure high quality service delivery in all functional areas of HR management at the operational and strategic levels including Manpower Planning, Recruitment and Selection, Compensation Management, Wellness Management, Training and Development, Employee Relations and Performance Management.


  • MSc. Skills and Performance – University of Leicester
  • BA (Hons) Business Studies – University of Glamorgan; UK
  • Diploma in Business Administration (ABE) Levels, I, II and Advanced
  • Administrative Professional Secretary (APS) – UWI Extra Mural Dept.


  • Train the Trainer – Institute of Business (IOB)
  • John Maxwell Certified Trainer

Lisa Burkett

Manager, Corporate Communications

Lisa BurkettLisa Burkett was appointed Manager, Corporate Communications on October 5th 2016.

She has over 25 years’ experience in the Public Relations and Communications field, having started her career in the Advertising industry. Lisa first came to NGC as a Public Relations Assistant and was promoted to Public Relations Officer in 1996. In 2011 she was appointed Head, Internal Communications.

Over her career at NGC, Lisa was responsible for corporate, stakeholder and community events; media engagement; leadership networking; publicity and promotions to support CSR programmes and most recently, internal communications.

Lisa Burkett is a former President of the Public Relations Association of Trinidad and Tobago and has lectured for several years on Public Relations, Marketing and Advertising at UWI Roytec.

An avid reader and film enthusiast, Lisa has sought to give back to society by being involved in the Past Pupils’ Association of her Alma Mater, serving as an executive member for several years, and as its President for the period 2011-2015.


  • B.Sc. in Social Sciences – University of the West Indies
  • MA in Mass Communications – University of Leicester


  • Graduate certification in Public Relations from the UWI Institute of Business and Business Management
  • Corporate Volunteerism – Boston College
  • Event Planning – George Washington University

Curt Cadet
Senior Manager, HSE and Security

Curt CadetCurt Cadet was appointed Senior Manager, HSE and Security at NGC as of 3rd January 2017. Mr. Cadet has over 30 years’ experience in the manufacturing and energy sectors, with the last 20 years dedicated to Health, Safety, Security & Environment (HSSE).

He started his career as an apprentice in the mechanical trade and moved on to work in the Instrument & Controls (I&C) Department at Trinidad and Tobago Electricity Commission (TTEC) which allowed for his transition into the HSSE field in 1995. He is the holder of a NEBOSH Certificate – Safety in Oil & Gas Operations (with credit), a NEBOSH National General Certificate (with credit), a NEBOSH Level 6 and Level 4 National Diploma.

Mr. Cadet has held several high-level positions in the HSSE field, for several companies such as: Actavo In-home and Network Division; Yara Trinidad Limited; ASCO Caribbean & South America; Nu-Iron; POWERGEN and TTEC. He has worked in a number of countries including Jamaica, USA, Curacao and Trinidad and Tobago.

Prior to joining The NGC Group, Mr. Cadet was Head of Safety, Health, Environment & Quality for the Caribbean Region at Actavo In-home and Network Division, a Company with headquarters in the Republic of Ireland. As a member of the Company’s Executive Leadership Team for the Caribbean, Mr. Cadet was responsible for strategic planning and organisation structure; performance management; programme and policy review, revision and implementation; and regulatory compliance, with direct supervision of 11 persons in four countries.


  • NEBOSH Certificate – Safety in Oil & Gas Operations
  • NEBOSH – National General Certificate
  • NEBOSH – Level 6 and Level 4 National Diploma

Professional Affiliations

  • Member, American Chamber of Commerce
  • Member, Point Lisas Energy Association
  • Graduate Member, Institution of Occupational Safety & Health (IOSH) UK
  • Board Member, Caribbean Institute for Security and Public Safety

Winston Mohammed

Senior Manager, Projects, Projects Division, NGC

Jason RamsinghWinston Mohammed, joined NGC in August 2018 as the new Senior Manager, Projects, Projects Division.

Mr. Mohammed is a graduate of The University of the West Indies, St Augustine. He has over 25 years’ experience in the oil and gas industry and has spent over 10 years leading large projects (>US $500 million) from design, procurement, construction, commissioning and handover to operations, including the Juniper, Mango and New Oil Export Pipeline projects in a Programme approach. His work experience, prior to NGC, includes project management and gas commercial experience at BP Trinidad and Tobago LLC.

He is accountable for the delivery of all capital projects in NGC and for the compliance of all capital projects against the requirements of NGC’s Project Management Methodology (PMM) across the NGC Group.


  • B.Sc. Mechanical Engineering – University of the West Indies, St. Augustine