Castrén & Snellman continues its strategic growth as a leading legal advisor in the green transition by inviting Tarja Pirinen – one of Finland’s most experienced legal advisers specialising in the mining industry and environmental law – to join the firm as a partner. In addition, a prominent environment and natural resources lawyer Fiiu Linninen will be joining the team as a senior associate.
4.8.2025
Castrén & Snellman welcomes leading mining and environmental law expert Tarja Pirinen as Partner, expanding its Environment, Energy & Green Transition service even further
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Tarja Pirinen has over two decades of experience advising Finnish and international mining companies and their investors.
‘It is a great pleasure to welcome Tarja to our firm. The mining industry plays a central role in the green transition, tech, and defence, and has become strategically important for Finland and entire Europe. Tarja is an excellent addition to our already market-leading practice, and she further strengthens our ability to support our clients in their important projects. We strive to be the most client-centric law firm in the Finnish market and therefore want to respond to the clients’ increasing service needs in these sectors,’ says Jarno Tanhuanpää, Managing Partner of Castrén & Snellman.
Tarja Pirinen assists clients on mining, industrial, and infrastructure projects across all phases of the project lifecycle, including permitting processes, agreements related to the acquisition of rights, administrative proceedings, and commercial agreements as well as matters pertaining to nature conservation and environmental liabilities. She also advises on transactions and corporate and financing arrangements on the mining sector. In addition, she regularly assists clients with a broad range of legal issues related to exploration and mining operations. Tarja moves to her new role from HPP Attorneys, where she worked as a partner for 12 years.
‘With Tarja’s detailed understanding of the mining sector and her environmental law experience, our Environment, Energy & Green Transition practice brings together market-leading expertise and breadth in demanding industrial, energy, natural resources, and infrastructure projects. This makes us a strategic asset for our clients seeking proactive legal solutions and long-term collaboration partners. Tarja is widely recognised for her spark and unrivalled dedication, and her clear yet comprehensive advice. We are super excited to welcome her to our team,’ say Samuli Tarkiainen and Marius af Schultén, partners co-heading the Environment, Energy & Green Transition team.
‘Castrén & Snellman’s strong drive in the energy, green transition and industrial projects has not gone unnoticed. The firm has a clear direction and a strong commitment to serving clients’ evolving needs with agility and client centricity. Castrén & Snellman has a highly skilled Environment, Energy & Green Transition team. With a broad and in-depth expertise across the relevant speciality areas, the team is well-equipped to advise clients on complex environmental and regulatory issues related to their projects. Supported by the firm’s market-leading full-service experts covering all aspects of business law, we are now uniquely positioned to help our clients succeed in the changing business environment. I am excited to contribute to delivering strategic value to our clients as part of the firm’s long-term growth journey,’ Tarja Pirinen says.
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