Tarja Pirinen

Partner, Member of the Finnish Bar

Services

  1. Environment, Energy & Green Transition
  2. Infrastructure & Industrial Projects

Contact details

I advise clients in exploration and mining projects as well as in industrial and infrastructure projects in general.

I have more than 20 years of experience in providing comprehensive advice to exploration and mining companies on a wide range of matters arising throughout the project’s life cycle. I advise mining and other clients in permitting and regulatory processes, arrangements concerning the acquisition of permits, rights of use and access rights, administrative procedures, nature conservation and environmental liability matters, and commercial contracts. I have also assisted clients in several transactions and financing arrangements in the mining sector. Chambers Europe has ranked me among Finland’s leading energy and natural resources lawyers, and Lexology has listed me as one of Finland’s leading mining lawyers.

In my work, I have a practical and straight-forward approach. Knowing and understanding the client’s business and industry is essential in delivering effective, business-oriented legal solutions that promote the client’s business. While high-quality legal advice is the foundation of assisting clients, I also recognise that legal considerations are just one part of a broader picture. Technical factors, project timelines and financing matters may play a crucial role in a project or the client’s business, and they need to be taken into account in order to find the best solution or way forward for the client’s project and business.

Latest references

Terrafame – Environmental and water management permit processes concerning the company’s entire operations and the KL1 side rock area
Castrén & Snellman successfully assisted Terrafame Ltd in environmental and water management permit processes concerning the company’s entire operations and the KL1 side rock area, on which the Supreme Administrative Court issued its decision on 12 February 2026 (KHO 366/2026 and 367/2026). The changes made to the decisions of the Vaasa Administrative Court as a result of Terrafame’s appeals, enable the company to implement its new strategy and develop its operations as planned. The decisions of the Supreme Administrative Court brought the nearly ten-year-long permit process to a close.
Case published 20.2.2026
HANZA – Acquisition of Fortaco Finland’s heavy mechanics and assembly business
We are acting as Finnish legal advisor to HANZA in connection with its acquisition of Fortaco Finland’s heavy mechanics and assembly business. The transaction is structured as a combined asset and share acquisition and includes Fortaco Finland’s heavy mechanics and assembly operations in Finland, as well as shares in two Estonian and two Polish subsidiaries. The transaction is expected to close during the fourth quarter of 2026, subject to customary closing conditions, including regulatory approvals. Founded in 2008, HANZA is a Swedish mechanical engineering and electronics contract manufacturing company listed on the Nasdaq Stockholm main list. HANZA has approximately 5,000 employees and annual sales of SEK 10 billion. We advise HANZA on this transaction in collaboration with the Swedish law firm Lindahl.
Case published 15.7.2026
RevolutionRace – Acquisition of ICANIWILL
We acted as Finnish counsel to RVRC Holding AB (RevolutionRace) in its acquisition of 90.1% of the shares in ICANIWILL AB (ICIW). Mannheimer Swartling (Sweden) acted as lead counsel for RevolutionRace. ICIW, founded in Sweden in 2012, is a Swedish training apparel brand.  RevolutionRace is a fast-growing Swedish outdoor brand offering multifunctional products to people with an active lifestyle. The company operates with a digital D2C business model reaching customers in approximately 40 countries. The company is listed on Nasdaq Stockholm since 2021. 
Case published 14.7.2026
Special investment fund managed by Mandatum – Sale of PMK Building
We advised a special investment fund managed by Mandatum on the sale of the PMK Building, a mixed-use commercial property located in Tammela, Tampere. The property hosts dozens of tenants and offers, inter alia, warehouse, production and office premises.
Case published 13.7.2026
Suominen Corporation – Rights Issue
We advised Suominen Corporation in connection with its rights issue. The offering was oversubscribed, and the company raised gross proceeds of approximately EUR 28 million. We also advised Suominen in connection with the renegotiation of the terms of the company’s three-year EUR 100 million syndicated credit facility, under which the maturity was extended and headroom was added to the financial covenants. “I would like to thank our shareholders for their support and confidence in Suominen’s future. The completion of the Offering will enable us to accelerate the implementation of our Full Potential Program while strengthening our capital structure. Our transformation particularly focuses on enhancing the reliability and efficiency of our production and supply, and on reinforcing our commercial capabilities, allowing us to better meet the expectations of our customers and shareholders”, comments Charles Héaulmé, President and CEO of Suominen. Suominen is a nonwovens manufacturer operating in global markets. Suominen creates value by taking fiber raw materials and turning them into nonwovens that the company’s customers convert into both consumer and professional end products. Suominen’s vision is to be the frontrunner for nonwovens innovation and sustainability. Suominen’s net sales in 2025 were EUR 412.4 million and the company has almost 700 professionals working in Europe and in the Americas. Suominen’s shares are listed on Nasdaq Helsinki.
Case published 6.7.2026
Nordea Bank Abp and Avain Yhtiöt – A financing arrangement of a real estate portfolio
We acted as joint legal advisor for Nordea Bank Abp and Avain Yhtiöt in an approximately EUR 48 million financing arrangement which included facilities for refinancing of an existing real estate portfolio and also for acquisition and property development purposes. The financing arrangement strengthens Avain Yhtiöt’s objective to build and maintain a functional, safe and environmentally friendly living environment, as well as to develop the overall quality of housing and construction. Avain Yhtiöt is a Finnish group specialising in housing and housing-related services, construction contracting and new construction. Its goal is to build 1,000 new apartments per year in key growth areas in Finland.
Case published 2.7.2026
Shareholders – Sale of the Suomen Autohuolto Group
We advised the shareholders of Suomen Autohuolto Oy in connection with the sale of the company’s entire share capital, to SAKA Finland Group Oy. Suomen Autohuolto Group is one of Finland’s largest companies specializing in brand-specific automotive maintenance and has locations in Oulu, Tampere, and from July, also in Järvenpää. The transaction is subject to final approval by the Finnish Competition and Consumer Authority (KKV).
Case published 26.6.2026
AI training
Natural Resources Institute Finland – AI training
We delivered two tailor-made AI workshops for the lawyers at the Natural Resources Institute Finland (Luke). We discussed the AI revolution and its impact on lawyers’ ways of thinking and working, and left the participants with practical solutions for enhancing and streamlining their work with Legora. Our AI-specialist lawyers prepared use cases tailored to Luke and the needs of public administration, which Luke received for its own use following the workshops. These use cases covered topics such as: utilising legal sources and the organisation’s own data to maximise AI results building and leveraging AI workflows AI-enhanced contract drafting based on a large volume of documents. The workshops sparked wide-ranging discussion on the role and benefits of AI in legal work. Participants appreciated how clearly and comprehensively our experts were able to present the nature and benefits of AI specifically within a legal context. ‘The workshops provided excellent support for Luke’s goal of leveraging AI responsibly and gave us concrete and ready-to-use practical takeaways,’ says Hannu Laitinen, Luke’s Senior Vice President, Administrative Affairs.
Case published 26.6.2026

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