28.9.2023

Marcus Blomfelt appointed as Senior Counsel and Piia Raappana and Yanhuan Zhou as Counsels

Our business is to enable our clients’ success and ensure their legal protection. To acknowledge their versatile expertise and dedicated work towards our clients’ success, we appoint Marcus Blomfelt as Senior Counsel and Piia Raappana and Yanhuan Zhou as Counsels as of 1 October 2023. Marcus was previously counsel at Castrén & Snellman, while Piia and Yanhuan were senior associates.

Marcus Blomfelt, Senior Counsel, Dispute Resolution

Marcus Blomfelt is an experienced dispute lawyer who specialises in complex litigation and criminal cases. He has assisted companies and their management in various criminal proceedings, including white collar, corruption and environmental criminal cases. In addition to handling criminal cases with distinction, he has extensive experience in disputes relating to, among other things, commercial agreements, M&A, sale of goods and agency agreements.

Marcus has particular expertise in private enforcement of competition law and has acted as counsel in the largest damages cases based on competition law in Finland.

Piia Raappana, Counsel, Intellectual Property

Piia Raappana is an expert in intellectual property law and dispute resolution. Her expertise includes industrial property rights and copyright as well as matters related to commercial agreements. In addition, she is well-versed in marketing and consumer law, media law and sports law.

Piia provides IP advise to our clients also in mergers and acquisitions, private equity transactions and other transactions.

The latest Managing Intellectual Property IP Stars recognised Piia as a Rising Star.

Yanhuan Zhou, Counsel, Mergers & Acquisitions

Yanhuan Zhou has extensive experience in demanding mergers and acquisitions as well as in restructuring of international companies. She advises clients in a wide range of domestic and cross-border mergers and acquisitions in various fields, such as the food industry, wholesale and retail, and heavy industry. She also specialises in various corporate matters.

Yanhuan’s key expertise lies in complex M&A with a multinational aspect. Lately, she has worked on several arrangements in which Finnish companies have exited their Russian operations. 

Our warmest congratulations to Marcus, Piia and Yanhuan for their new roles!

 

Read more: Castrén & Snellman appoints five new Senior Associates – an appointment also in Business Services

Latest references

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Case published 11.2.2026
We advised Metsäkonepalvelu Oy in its acquisition of the entire share capital of PJP Metsäexpertit Oy. PJP Metsäexpertit is a Pirkanmaa-based company specialising in forest management and logging. The acquisition will strengthen Metsäkonepalvelu’s operations, particularly in the Pirkanmaa region, and expand its operations. Metsäkonepalvelu is a portfolio company of A. Ahlström Oy, a Finnish family-owned industrial owner. Metsäkonepalvelu provides mechanical timber harvesting services to forest companies, large private forest owners, and the public sector in Finland and Sweden. Metsäkonepalvelu Group employs nearly two hundred forestry professionals.
Case published 6.2.2026
We acted as legal adviser to EcoUp Oyj in a directed share issue, through which EcoUp raised a total of approximately EUR 3 million in gross proceeds to strengthen the company’s capital structure and finance its growth. The share issue was directed to a limited group of domestic investors, deviating from the shareholders’ pre-emptive subscription right. EcoUp’s shares are traded on the First North Growth Market Finland marketplace maintained by Nasdaq Helsinki.  EcoUp promotes the green transition of the construction industry by producing carbon-neutral, energy-efficient and circular economy-based materials, services and technologies that help construction industry players reduce their environmental impact. The company has over 40 years of experience in developing and delivering circular economy solutions to customers.
Case published 29.1.2026
We advised a leading global investment firm Brookfield, alongside a global sovereign wealth investor, on the Finnish law aspects of a EUR 1 billion holdco financing for DayOne Data Centers, a Singapore-headquartered developer and operator of hyperscale data centres. Structured as a seven-year secured holdco financing facility of €500 million, expandable to €1 billion – and secured by DayOne’s Finland platform – the financing will support the rollout of hyperscale developments in Lahti and Kouvola, providing nearly 300MW of planned capacity across Finland. The proceeds will also support DayOne’s global expansion across the EU and APAC, with flexibility to allocate to other key growth markets as required.
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