Joel Aartolahti

Associate, Master of Laws

Services

  1. Environment, Energy & Green Transition

Contact details

I advise our clients in matters related to the environment, infrastructure and natural resources.

Before joining Castrén & Snellman I worked as a lawyer at another law firm and concentrated on real estate and construction related matters. Before my graduation I worked as a trainee in the real estate and environment team of another major law firm.

I graduated from the University of Helsinki in 2021. In addition, I studied energy and environmental law at the University of Aberdeen in Scotland for one semester.

Latest references

Fortum – Acquisition of a project development portfolio for renewable power from Enersense
We are acting as a counsel to Fortum in a transaction in which Fortum is strengthening its renewable power project pipeline through the acquisition of a project development portfolio from Enersense. The debt-and-cash free purchase price is approximately EUR 9 million, with the potential for project-specific earn-outs subject to projects successfully reaching a final investment decision in the future. The transaction is subject to customary closing conditions and is expected to be completed during the first quarter of 2025. Fortum is a leading Nordic energy company with the purpose to power a world where people, businesses and nature thrive together. Fortum’s core operations comprise of efficient, CO2-free power generation as well as reliable supply of electricity and district heat to private and business customers. The company is listed on Nasdaq Helsinki. One of Fortum’s strategic targets is to develop at least 800 MW of ready-to-build onshore wind and solar projects by the end of 2026.
Case published 19.12.2024
Hanza AB – Acquisition of Leden Group
We acted as Finnish advisor to Hanza AB relating to its acquisition of all the shares in Leden Group Oy. Hanza AB is a Swedish mechanical engineering and electronics contract manufacturing company listed on the Stockholm Stock Exchange. Founded in 2008, the company has six manufacturing clusters in Sweden, Finland, Germany, Baltics, Central Europe and China and an annual turnover of approximately SEK 4.6 billion. Leden Group is a leading Finnish contract manufacturer specialising in sheet metal, machining and complex assembly. Leden Group has four production sites in Finland and one in Estonia and an annual turnover of approximately SEK 1.1 billion. 
Case published 13.12.2024
Fortum – Sale of recycling and waste business
We acted as the lead counsel to Fortum in a cross-border transaction in which Fortum sold its recycling and waste business. The business was sold to thematic impact investing firm Summa Equity through its portfolio company NG Group. The debt-free purchase price is approximately EUR 800 million.  Fortum’s recycling and waste business to be sold comprises municipal and industrial waste management and end-to-end plastics, metals, ash, slag and hazardous waste treatment and recycling services. These businesses are located in Finland, Sweden, Denmark and Norway and currently employ approximately 900 employees.
Case published 18.7.2024
eQ Fund Management Company Ltd – Structural Arrangement Related to Residential Funds
We acted as legal advisor to eQ Fund Management Company Ltd in a structural arrangement in which Special Investment Fund eQ Residential Fund and Special Investment Fund eQ Residential Fund II transferred their assets to the newly launched Special Investment Fund eQ Residential Fund III. In connection with the arrangement, eQ Residential Fund III raised 37 million euros in new capital, and its fundraising will continue throughout 2025.  The portfolio of eQ Residential Fund III consists of 19 residential properties completed between 2021 and 2024, comprising nearly 1,400 apartments located in the Helsinki Metropolitan Area, Turku, and Tampere.
Case published 21.5.2025
eQ Community Properties Fund – Sale of two healthcare properties
We assisted eQ Community Properties Fund in the sale of two healthcare properties to a fund managed by Northern Horizon. The properties have a total floor area of approximately 3,500 square meters. The two properties are located in Espoo and Lahti. The Espoo asset was completed in 2018 and the Lahti asset was completed in 2023. Both assets are operated by Attendo, the leading care provider in the Nordic region.
Case published 9.5.2025
BMW AG – Enforcement of BMW’s trademark and design rights
We successfully represented BMW in an exceptionally long dispute over whether the spare rims sold by the defendant and the hub caps included in them infringed BMW’s trademark and design rights. The Market Court found that the sign used by the defendant caused a likelihood of confusion with BMW’s trademarks. The defendant had used the sign on the hub caps and in the marketing of the hub caps and rims, leading the Market Court to find that the defendant had infringed BMW’s trademark rights. The defendant admitted to infringing BMW’s Community design but denied the related injunction claim. However, the Market Court found that there was no particular reason to refrain from issuing an injunction. The Market Court prohibited the defendant from continuing to infringe BMW’s trademarks and Community design and ordered the defendant to alter or destroy the products and marketing materials that infringed BMW’s rights. Furthermore, the Market Court ordered the defendant to pay BMW EUR 70,000 in reasonable compensation and EUR 80,000 in damages for the trademark infringements, as well as EUR 7,000 in reasonable compensation and EUR 8,000 in damages for the design right infringement. The amounts can be considered exceptionally high in Finland. Additionally, the Market Court ordered the defendant to pay a significant portion of BMW’s legal costs with interest on late payment. In its decision of 11 March 2025, the Supreme Court of Finland did not grant the defendant leave to appeal, and also decided that there was no need to seek a preliminary ruling from the Court of Justice of the European Union. Thus, the Market Court’s judgements (MAO:494/18 and 517/2023) are final. In addition to the main dispute, BMW demanded in a separate proceeding that one of the defendant’s trademark registrations be revoked. A total of three separate legal proceedings were conducted in the Market Court regarding the revocation. The defendant’s trademark registration was ultimately revoked.
Case published 9.5.2025
DNA – Global brand portfolio management and IP enforcement
We are advising DNA Plc in brand protection and intellectual property enforcement matters globally. Our intellectual property team manages DNA’s global trademark portfolio, including registration, prosecution, opposition and enforcement. We also advise DNA in questions concerning consumer and marketing law, unfair competition, social media, domain names and cybersquatting. DNA Plc is one of Finland’s leading telecommunication companies. DNA offers connections, services and devices for homes and workplaces, contributing to the digitalisation of society. The company has approximately 3.7 million subscriptions in its fixed and mobile communications networks. In 2024, DNA’s total revenue was EUR 1,100 million, and the company employs about 1,600 people around Finland. DNA is part of Telenor Group.
Case published 7.5.2025
Foodiq – Restructuring proceedings
Castrén & Snellman’s Attorney Christer Svartström acted as the administrator in the restructuring proceedings of Foodiq Oy, which began on 11 March 2024. Foodiq is a unique future food focused company that develops and produces plant and milk-based products for both the private and public sectors. The company’s largest shareholder is a Swedish investment company focusing on FoodTec, Nicoya AB. The majority of creditors approved the draft restructuring programme in expedited proceedings after restructuring proceedings that lasted just under a year. The District Court of Helsinki affirmed the restructuring programme including the one-day payment programme on 10 March 2025 and appointed Attorney Christer Svartström as the supervisor of the programme. In cooperation with the parties, they found an effective and quick restructuring solution for the company, avoiding a long-term programme and allowing the company to focus on its core business. The restructuring programme was financed by investments made by the company’s investors. At the same time, the one-day programme provided a better outcome for creditors compared to a longer programme. The implementation of the restructuring programme ended successfully on 28 March 2025.
Case published 6.5.2025

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