Legal professional privilege safeguards secrecy and confidentiality in exchanges between attorneys and their clients. It is an essential aspect of the right of defence. Exactly what falls within the scope of legal professional privilege is not always clear, however, and companies should be mindful about this. This is an important issue in competition infringement proceedings, because competition authorities have wide investigation powers and can require companies to disclose a vast amount of documents. Trials are also a borderline case: if the trial documents contain correspondence between a party and their attorney, does this correspondence enter the public domain?

In a recent ruling, Finland’s Supreme Administrative Court (SAC) considered legal professional privilege in a situation where the client had disclosed their attorney’s advice to third parties. Earlier this year, the SAC weighed legal professional privilege against the principle of openness in government activities.

SAC Found Competition Authority Had Violated Legal Professional Privilege

In its ruling KHO:2019:98, the SAC found that the Finnish Competition and Consumer Authority (FCCA) had violated legal professional privilege when investigating a bus cartel that was active in Finland from 2010 to 2015. An appendix of the FCCA’s penalty payment proposal included an email thread from a company that had participated in the cartel. One of the messages in the thread referred to a recommendation by the company’s attorney. It also included a statement by a company representative regarding the recommendation. The message was forwarded within the company as well as outside the company to another cartel participant.

The SAC stated, firstly, that the recommendation issued by the attorney was linked to the competition infringement investigated by the FCCA and was, therefore, relevant to the company’s right of defence. Whether or not the company had actually followed the recommendation or whether the law firm had issued it before or after the investigation had begun did not matter.

The SAC then assessed whether legal professional privilege applies to a message that has been forwarded to others. Under European case law, legal professional privilege protects a company’s internal correspondence, which merely repeats a legal recommendation issued by an attorney (see, e.g. Case T30/89 Hilti). According to the SAC, whether this protection also extends to a recommendation that has been disclosed to external parties was open to interpretation.

The SAC deemed that, where there is room for interpretation, precedence must be given to the right of defence of the cartel participants. In the court’s view, the company had not waived its legal professional privilege even though it had disclosed its attorney’s advice to an external cartel participant. In other words, unlike the Market Court, which was the court of first instance, the SAC found that the company was not obligated to hand over to the FCCA the part of the message that included its attorney’s advice. The SAC disregarded this part of the message when evaluating the cartel. However, the court did remark that the violation of legal professional privilege had not materially restricted the company’s ability to defend itself.

The SAC’s position on the protection of right of defence has bearing in competition infringement proceedings. Nonetheless, despite the broad interpretation of the right of defence and legal professional privilege in this case, companies should act cautiously and avoid disclosing their attorneys’ legal advice to third parties.    

Legal Professional Privilege May Justify Secrecy of Official Documents

The SAC has issued two rulings that clarify the relation between legal professional privilege and the principle of openness in government activities. Official documents are generally public and can only be declared secret based on the grounds provided by law.

In an appeal against a public procurement decision (KHO:2019:10), the appellant had requested access to an attorney’s opinion attached to the decision awarding the contract. The opinion included legal advice regarding the tender procedure planned by the contracting entity.

The SAC found that the opinion was a trial document, which in principle means that the appellant had the right to access it. However, the SAC refused the appellant’s access request, invoking the confidentiality of the relationship between attorney and client. The SAC found that the attorney’s obligation of secrecy is one of the preconditions for a fair trial.

In another ruling (KHO:2019:83), the SAC assessed an access request to the National Audit Office of Finland that concerned the publicity and secrecy of a memorandum related to the investigation of the derivatives positions of a government-owned company. The memorandum included information about the positions expressed by and reviews carried out by the company’s attorneys at various stages of the proceedings.

The SAC deemed that the information was protected by the attorney’s obligation of secrecy unless the client wished to waive the obligation. The company had not done so, and wished to keep the information secret. The SAC stressed, again, that the confidentiality of the exchanges between attorney and client plays a part in ensuring a fair trial. For this reason, the court found that the legal reviews and positions expressed in the opinion were business secrets of the company, and the company was under no obligation to disclose them to third parties.

The SAC’s rulings help to clarify the relationship between the legal professional privilege and the publicity of official documents.


Johanna Lähde and Hanna Perikangas

Latest references

We acted as Finnish law legal adviser to the lenders and the export credit agencies in connection with the EUR 514.4 million green project financing for the development and construction of Easpring Finland New Materials Oy’s cathode active material (CAM) manufacturing plant in Kotka, Finland. The borrower, Easpring Finland New Materials Oy, is a joint venture owned by Beijing Easpring Material Technology, Finnish Minerals Group and LG Energy Solution. The financing was provided by six international commercial banks, with Société Générale acting as financial adviser and mandated lead arranger together with Natixis as co-mandated lead arranger, and DNB, ICBC, ING and Standard Chartered participating as lenders, with support from the export credit agencies Finnvera and Sinosure. The project represents a significant milestone for Finland and the European battery value chain by strengthening Europe’s domestic supply of cathode active materials, a key component in lithium-ion batteries for electric vehicles and energy storage applications. Once the first phase of the project is operational, the Kotka facility is expected to produce approximately 60,000 tonnes of cathode active material annually, making it one of the largest CAM production plants in Europe and supplying leading battery manufacturers across Europe. 
Case published 21.7.2026
We acted as Finnish legal advisor to Delta Capacity in connection with its acquisition of the ready-to-build Karppio battery energy storage system (BESS) project from Helios Nordic Energy. The acquisition was made and the project will be implemented together with Strioga Family Foundation. The Karppio BESS project is located in Teuva, Finland, and has a capacity of 125 MW / 300 MWh. Delta Capacity will lead the remaining development of the project through to commissioning, planned for 2027, and will serve as long-term asset manager. Delta Capacity is a Swiss-based developer of utility scale battery storage systems. The acquisition adds to Delta Capacity’s growing Nordic portfolio. 
Case published 20.7.2026
We advised Swedbank AB (publ) on the refinancing of a large Finnish retail real estate portfolio owned by Trophi’s Finnish subsidiaries. Trophi is the leading Nordic real estate company focusing on grocery anchored retail properties, with 278 properties across Sweden and Finland. Finland is a market that continues to develop and is also strategically important for Trophi, accounting for approximately 30% of Trophi’s letting and property value.
Case published 17.7.2026
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