LAWYER PROFILE
Karen MacMillan

Karen MacMillan

Canada 2026

Chambers ranking badge
Chambers ranking badge

Ranked in 2 practice areas

About

Provided by Lawson Lundell LLP

Practice Areas

Corporate Commercial Law; Energy; Mergers & Acquisitions; Global Mining.

Career

Karen MacMillan is Lawson Lundell's Managing Partner as well as Co-Lead of the firm’s Global Mining Group. She practices corporate/commercial, mining, and energy law with an emphasis on commercial arrangements in the mining and energy sectors. She has significant experience with asset-level acquisitions and dispositions, earn-in, option and joint venture agreements, royalty agreements, procurement, construction and engineering agreements, and other complex ownership arrangements.

In the energy sector, Karen regularly advises clients on the ownership and development of major power generation projects, power purchase and sale agreements, renewable energy transactions, and other commercial contracting matters.

Karen also counsels domestic and international clients across industries on general business law issues. Her experience includes share and asset acquisitions and divestitures, licensing arrangements, corporate and contractual joint ventures, and debt and equity financings. She has worked with clients across a variety of sectors, including mining, energy, forestry, pulp and paper, financial services, consumer products manufacturing and distribution, recreation and resorts, transportation, and education.

Karen has also had the opportunity during the course of her career to work in-house with clients in the energy and forest-products sectors where she focused primarily on procurement, construction and engineering and other contracting matters.

Karen was Lawson Lundell’s first Chief Inclusiveness Officer, leading the firm’s diversity and inclusiveness initiatives through the design, implementation, and measurement of firm-wide improvement programs.

Professional Memberships

World Association of Mining Lawyers, Advisory Council

Chambers Review

Provided by Chambers

Chambers Canada Guide

Energy & Natural Resources: Mining: Development and Operations - Nationwide - Canada

Band 2
Band 2

Individual Editorial

Co-leader of the firm's mining group, Karen MacMillan, handles commercial agreements and corporate transactions across the mining industry, with particular strength in asset purchases and dispositions.

Energy & Natural Resources: Mining - Nationwide - Canada

Band 3
Band 3

Individual Editorial

Co-leader of the firm's mining group, Karen MacMillan, handles commercial agreements and corporate transactions across the mining industry, with particular strength in asset purchases and dispositions.

Strengths

Provided by Chambers

  • Karen is extremely knowledgeable and a pleasure to work with.

    Energy & Natural Resources: Mining: Development and OperationsChambers Canada Guide

Ranked Individuals at Lawson Lundell LLP (53)

Alberta

British Columbia

Nationwide - Canada

What success is built on

Chambers is the leading data and intelligence partner for the legal sector.

Explore thought leadership