Sini Tossavainen

Senior Associate, Member of the Finnish Bar

Services

  1. Dispute Resolution

Contact details

I specialise in dispute resolution. My area of practice covers both international and domestic court and arbitration proceedings. I advise our clients in commercial disputes ranging across a variety of different business sectors. I have extensive experience in complex commercial disputes relating to product liability, sale of goods, mergers and acquisitions, joint ventures and shareholder agreements, outsourcing, and procurement of data systems as well other commercial agreements. I have also advised clients on various contractual and regulatory matters.

Before joining Castrén & Snellman, I worked within dispute resolution at Nordic a law firm and at a Finnish boutique law firm.

Latest references

Excelerate Energy – Chartering an FSRU to Finland
We advised Excelerate Energy on the conclusion of a lease agreement with Gasgrid Finland Oy for the Floating Storage and Regasification Unit (FSRU) Exemplar. The Inkoo LNG terminal project will have a significant impact on securing the supply of gas to Finland and Estonia as imports of pipeline gas from Russia cease. The Exemplar is the first FSRU in Finland and the Inkoo LNG terminal project is legally unique. Moreover, the project, which is critical for Finland’s and the Baltics’ gas supply, was completed in an exceptionally short timeframe. Our experts assisted the company in a wide range of areas including contracts, energy legislation, licensing, labour law, taxation and structuring.
Case published 9.6.2023
Metsäliitto Cooperative – A EUR 200 million sustainability-linked revolving credit facility agreement
We advised Metsäliitto Cooperative in relation to a new EUR 200 million sustainability-linked revolving credit facility with a syndicate of eight banks. This new credit facility refinances the existing EUR 200 million facility signed in December 2018 and will be used for general corporate purposes. The facility has a tenor of five years and includes two one-year extension options. The pricing mechanism of the revolving credit facility is linked to two of Metsä Group’s ambitious sustainability targets: Target 1: Zero tonnes of fossil carbon dioxide emissions, Scope 1 and 2, by 2030. Target 2: Share of certified wood in wood supply 100% by 2030. ‘Incorporating sustainability criteria into our financing further demonstrates the company’s strong commitment to actions that reduce our carbon footprint and mitigate climate change,’ says Vesa-Pekka Takala, EVP, CFO of Metsä Group.
Case published 16.1.2025
NoHo Partners – A MEUR 119 Financing Package
We advised NoHo Partners Plc on a 119-million-euro financing arrangement. The financing arrangement frees up a significant part of the cash flow for the business and enables the implementation of an acquisition-driven growth strategy also in the future.
Case published 16.1.2025
CapMan Buyout – Divestment of Renoa Group
We advised CapMan Buyout in the exit of Renoa Group. Renoa Group management together with Korpi Capital and other investors have acquired the group. Renoa Group is a Finnish established expert in the building technology sector specializing in detached houses in Finland and Sweden. Renoa is a major provider of turnkey domestic water & heating, sewer system and electricity network renovations, with significant operations also in Sweden. The Group reported sales of €35 million and employed c. 300 personnel across its 10 offices in Finland and 6 in Sweden. Korpi Capital is a Finnish investment company with holdings in 29 companies. 
Case published 14.1.2025
eQ Community Properties Fund – Acquisition of a property portfolio
We advised eQ Community Properties Fund in its acquisition of a property portfolio comprising a health centre in Espoo, a daycare property in Vantaa, an elementary school in Helsinki, and a parking facility property in Helsinki from Ilmarinen Mutual Pension Insurance Company. The lettable area of the first three properties is approximately 13,900 sq.m., while the parking facility offers 120 parking spaces. The portfolio’s tenants include the City of Helsinki, the City of Vantaa, the Western Uusimaa Wellbeing Services County, and Aimo Park Oy. In connection with the transaction, Ilmarinen invested in eQ Community Properties fund as per 31 December 2024.
Case published 9.1.2025
Finnish manufacturing company – Arbitration proceedings under the SCC rules
We successfully represented a Finnish manufacturing company in arbitration proceedings under the SCC rules against a global construction company. The dispute was governed by Finnish law and the seat of arbitration was Stockholm, Sweden. The dispute mainly concerned the termination of an erection contract and the right to compensation for delays of the project and for cost increases due to Russia’s invasion of Ukraine. The main questions in dispute were the lawfulness of the termination of the erection contract as well as the consequences of the termination such as the right to costs to complete the project after termination, the right to liquidated damages for delay of the project and adjustment of contract price due to cost increases. The total value of the dispute exceeded EUR 15 million.
Case published 8.1.2025
Korkia Oy – Renewable energy loan agreement
We advised Korkia Oy in its loan agreement with Nordic Environment Finance Corporation. The financing will support the development and international scale-up of Korkia’s pipeline of solar energy, battery energy storage system (BESS) and onshore wind projects. Korkia is a dedicated investor in renewable energy operating in nine countries. It has a robust development pipeline of over 20 GW in renewable energy and energy storage projects.
Case published 7.1.2025
Commerzbank – Vessel construction financing for Meyer Turku
We acted as the Finnish law legal advisor to Commerzbank AG, which served as the coordinator, bookrunner, documentation agent, facility agent and security agent of an international banking syndicate. This syndicate provided an ECA-covered construction financing facility of more than EUR 1 billion for the Finnish shipyard company Meyer Turku Oy. The loan facility will be used on the construction of one new passenger cruise ship. The newbuilding is the third of the ICON class. According to Meyer Turku Oy the ICON-class ships are the world’s most advanced and the most environmentally friendly cruise ships of their owner, Royal Caribbean Cruise Lines.
Case published 30.12.2024

Get to know our other experts in the field

Anders Forss
Position: Partner
Primary service Dispute Resolution
 +358 50 588 6110
Marko Hentunen
Position: Partner
Primary service Dispute Resolution
 +358 40 590 6689
Ilona Karppinen
Position: Partner
Primary service Dispute Resolution
 +358 50 357 0514
Eveliina Tammela
Position: Partner
Primary service Dispute Resolution
 +358 44 532 5022
Marcus Blomfelt
Position: Senior Counsel
Primary service Dispute Resolution
 +358 40 352 9226
Teemu Auressalmi
Position: Counsel
Primary service Dispute Resolution
 +358 50 325 2465
Stina Europaeus
Position: Counsel
Primary service Dispute Resolution
 +358 40 744 3545
Iris Brisson
Position: Senior Associate
Primary service Dispute Resolution
 +358 44 068 5598
Alexis Huldén
Position: Senior Associate
Primary service Dispute Resolution
 +358 40 661 5222
Lauri Liljavirta
Position: Senior Associate
Primary service Dispute Resolution
 +358 40 705 8384
Lars Lindeman
Position: Senior Associate
Primary service Dispute Resolution
 +358 45 788 44259
Mikaela Myllynen
Position: Senior Associate
Primary service Dispute Resolution
 +358 50 343 1589
Robin Ollus
Position: Senior Associate
Primary service Dispute Resolution
 +358 50 469 1755
Veera Sundberg
Position: Senior Associate
Primary service Dispute Resolution
 +358 50 438 7197
Touko Hakahuhta
Position: Associate
Primary service Dispute Resolution
 +358 20 776 5003
Lotta Henriksson
Position: Associate
Primary service Dispute Resolution
 +358 45 788 44261
Onni Koivu
Position: Associate
Primary service Dispute Resolution
 +358 20 776 5431
Ilari Lamminmäki
Position: Associate
Primary service Dispute Resolution
 +358 45 782 04227
Roope Oja
Position: Associate
Primary service Dispute Resolution
 +358 45 788 17724