Board of Directors

Pentti Karkkainen was appointed Chair of the Board of AltaGas Ltd. effective April 2, 2019. Mr. Karkkainen has over 35 years of investment management, energy sector research and investment banking experience. He was a co-founder and General Partner of KERN Partners from 2000 to 2014, and was the firm's Senior Strategy Advisor from 2014 until his retirement from the firm in 2015. Prior thereto, Mr. Karkkainen was the Managing Director and Head of Oil and Gas Equity Research at RBC Capital Markets.

Mr. Karkkainen has significant board experience on publicly traded companies, including as board chair, lead director and compensation committee chair. He has also held a number of roles with private companies, including audit committee chair. Mr. Karkkainen holds a Bachelor of Science (Honours) in Geology from Carleton University and a Masters of Business Administration from Queen's University. He is a member of the Institute of Corporate Directors.

Ms. Johnston is a Corporate Director. She was Executive Vice President, Gas, Renewables and Operations Services at TransAlta Corporation from 2015 until her retirement in 2017. Between 2011 and 2015, she held various positions, including Executive Vice President Enterprise Risk and Corporate Services and Executive Vice President Corporate Services at TransAlta. Prior thereto, Ms. Johnston held various executive leadership positions with TransAlta and FortisAlberta.

Ms. Johnston has over 30 years of diverse experience in strategic planning, complex project management, operations, sales and marketing, customer service, stakeholder relations, economic analysis and regulation. She holds a Bachelor of Arts in Economics from the University of Calgary and a Masters in Applied Economics from the University of Victoria. She is a member of the Institute of Corporate Directors.

Mr. Knoll is a Corporate Director and Professional Engineer. He was President of Knoll Energy Inc. from 2006 until 2021. Mr. Knoll served as interim co-CEO of AltaGas from July to December 2018. Prior thereto, he was CEO of Corridor Resources Inc. from 2010 to 2014. His other roles included Group Vice President, Duke Energy Gas Transmission, Chair, Management Committee and President for Maritimes & Northeast Pipeline, as well as senior roles at Westcoast Energy Inc., TransCanada Pipelines Limited and Alberta Natural Gas Company Ltd.

Mr. Knoll has over 35 years of varied experience in the energy sector, primarily related to energy infrastructure businesses and the natural gas value chain. Mr. Knoll holds a Bachelor of Applied Science from the Technical University of Nova Scotia in Chemical Engineering. He is a member of the Institute of Corporate Directors.

Ms. Lekatsas is a Chartered Professional Accountant (CPA, CA) and Corporate Director with broad industry and corporate finance experience. She served as President and CEO of Cervus Equipment Corporation (“Cervus”) from 2019 until its acquisition in 2021 and prior thereto as an Independent Director of Cervus, including Chair of its Audit Committee. From 2003 to 2018, Ms. Lekatsas was a senior executive with Nutrien Ltd. and its predecessor company Agrium Inc., where she held various roles spanning corporate development, operations, finance and risk. Prior to 2003, Ms. Lekatsas worked in public practice accounting for 15 years.

Ms. Lekatsas has a Bachelor of Commerce Degree from the University of Saskatchewan. She received her CPA, CA designation from the Institute of Chartered Accountants of Alberta in 1990, and her Certified Public Accountant designation from the Illinois Institute of Certified Public Accountants in 2002. She is a member of the Institute of Corporate Directors and holds the ICD.D designation as well as Certification of Cybersecurity Oversight from the Carnegie Mellon University Software Engineering Institute.

Ms. Tower served as President and Chief Executive Officer of Tampa Electric Company, a regulated electric utility and a subsidiary of Emera Incorporated (Emera) in Tampa, Florida, from December of 2017 until 2021. Prior to her roles with Tampa Electric Company, Ms. Tower was the Chief Corporate Development Officer of Emera from 2014 to 2017. From 1997 to 2014, Ms. Tower held several senior positions in corporate finance and in operations at Emera and with its subsidiaries, including Controller and Vice President, Customer Operations of Nova Scotia Power Inc., Chief Financial Officer of Emera, and Chief Executive Officer of Emera Newfoundland and Labrador.

Ms. Tower holds a Bachelor of Commerce from Dalhousie University and is a Fellow Chartered Accountant. She is a member of the Institute of Corporate Directors.

Ms. Calvert is a Corporate Director and a private consultant specializing in executive coaching. She is also Professor Emerita of Business at Mount Royal University in Calgary, where she taught from 1988 until 2018. She was a Director of the Canadian Alliance of Community Service Learning from 2009 to 2017 and has published and spoke extensively regarding sustainability and community partnerships. Prior to this, she held corporate positions at Hudson's Bay Oil and Gas and the Bank of Nova Scotia and British Petroleum.

Ms. Calvert has experience in digital transformation, stakeholder partnerships and sustainability policies and metrics from serving on public company boards and non-profit boards, such as Heritage Park Society Board. She holds a Bachelor of Commerce (Hons.) degree from Queen's University and a Master of Business Administration degree from Western University and is a member of the Institute of Corporate Directors.

Mr. Cornhill is an independent businessman. He is founding shareholder of AltaGas (and its predecessors) and served as Chairman of the Board from 1994 to 2019. He was Chief Executive Officer of AltaGas from 1994 to 2016 and served as interim co-­CEO from July to December 2018. Prior to forming AltaGas, Mr. Cornhill served in various capacities with Alberta and Southern Gas Co. Ltd., including Vice President, Finance and Administration, Treasurer and President and Chief Executive Officer.

Mr. Cornhill is an experienced leader in the business community and is a strong supporter of communities and community collaboration, investment and enhancement and has served on the boards of a number of public and private companies.

Mr. Cornhill is a member of the Ivey Advisory Board at Western University. He holds a Bachelor of Science (Hons.) degree and a Master of Business Administration degree, both from Western, and was awarded an honorary Doctor of Laws degree by Western in 2015. Mr. Cornhill is a member of the Institute of Corporate Directors.

Mr. Duplantier is a recently retired executive who has spent more than 25 years in the energy industry, most recently with Parker Drilling Company. He served as President, Rental Tools and Well Services of Parker Drilling from April 2018 until July 2020. Prior thereto, Mr. Duplantier held a series of executive positions at Parker Drilling, including Senior Vice President, Chief Administrative Officer and General Counsel from April 2014 to March 2018; Senior Vice President and General Counsel from 2012 to 2014; and Vice President, General Counsel and Corporate Secretary from 2009 to 2012. Prior to joining Parker Drilling, he held a number of roles at ConocoPhillips including Senior Counsel, Exploration and Production, Managing Counsel, Indonesia and Managing Counsel, Environmental.

Mr. Duplantier holds a Juris Doctor Degree from Louisiana State University and a Bachelor of Science from Grambling State University. He is a member of the National Association of Corporate Directors and the Institute of Corporate Directors.

Mr. Evans is the Executive Chairman of the Pathways Alliance, a consortium of Canada’s largest oilsands producers focused on substantially reducing their C0₂ emissions. With over 40 years of experience in various operational and senior executive positions in the oil and gas business in Western Canada, Mr. Evans has a wealth of knowledge and expertise. Mr. Evans served as President, CEO and a Director of MEG Energy Corp. from 2018 to May of 2024 and as President, CEO and a Director of Pengrowth Energy Corp. from May 2009 until March 2018.

Mr. Evans holds a Bachelor of Science in Mining Engineering from Queen’s University, is a registered professional engineer in Alberta, and is a member of the Institute of Corporate Directors with an ICD.D designation.

As President and Chief Executive Officer, Mr. Yu leads the development and execution of AltaGas’ strategy, oversees operations and manages the business and affairs of AltaGas.

Mr. Yu is an experienced executive with a proven track record of success across the energy infrastructure value chain including within North American Midstream and Utilities markets being AltaGas’ core focus areas. Mr. Yu joins AltaGas after a successful three-decade career at Enbridge Inc., most recently serving as Executive Vice President, Corporate Development, Chief Financial Officer and President, New Energy Technologies. Prior to that, Mr. Yu held various commercial, operational, and financial roles including serving as Executive Vice President and President of Liquids Pipelines and as Executive Vice President and Chief Development Officer, where he played a leading role in securing more than $30 billion in new growth projects, completion of major pipe replacement projects, leading entry into new markets, and various acquisitions.

Mr. Yu is a Professional Engineer and holds a Master of Business Administration degree in Finance from the University of Toronto, as well as a Bachelor of Science degree in Applied Science from Queen’s University. Mr. Yu serves on the Board of the Calgary Economic Development. He previously served as the Vice Chair of the Alberta Cancer Foundation’s Board of Trustees and served on the Boards of DCP Midstream and Énergir Inc.