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Portrait ofOlaf Thießen

Dr. Olaf Thießen

Principal Counsel
Rechtsanwalt, Tax Adviser | Fachanwalt für Steuerrecht (Certified lawyer for tax law) | Fachberater für Zölle und Verbrauchsteuern (Certified tax adviser for customs and excise duties)

CMS Hasche Sigle
Stadthausbrücke 1-3
20355 Hamburg
Germany
Languages German, English

Tax lawyer Olaf Thießen specialises in excise duty, VAT and customs duty. His practice includes, amongst others, advising companies on custom duty and VAT matters in the context of establishing offshore wind farms, and he has furthermore special expertise in the excise duty aspects of intra-Community trade. Olaf also assists his clients with tariffs, including tariff classification and applying for binding tariff information, and he is also very experienced with the German import turnover tax (VAT for goods imported from non-EU states). With his expertise in national and international company taxation, Olaf also regularly advises on M&A transactions.

After three years with Linklaters, Olaf joined CMS in 2009 and has been a principal counsel since 2019.

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Memberships & Roles

  • Hamburger Forum für Unternehmenssteuerrecht e.V.
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Publications

  • Funktionsänderungen und Funktionsverlagerungen (mit Dr. Heino Büsching) in: Steueroptimierte Gestaltungen in Restrukturierung, Sanierung und Insolvenz; Schäffer/Poeschel 2013
  • Der Referentenentwurf zum German Real Estate Investment Trust, DB 2006, p. 2144 ff
  • Dreiecksverhältnisse im internationalen Steuerrecht unter Beteiligung doppelt ansässiger Kapitalgesellschaften, Peter Lang 2010
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Education

  • 2014: Qualified as Certified Advisor for Excise and Customs Duties
  • 2009: Qualified as a Certified Tax Advisor
  • 2003 - 2005: Trainee lawyer at Trier Regional Court
  • PhD; thesis on tax law topic
  • 1996 - 2001: Law studies in Trier
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Expertise

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26/03/2024
CMS advises SEFE on all aspects of acquiring WIGA Group
Hamburg – SEFE Securing Energy for Europe GmbH (SEFE) has acquired all the shares in WIGA Transport Beteili­gungs-GmbH & Co. KG (WIGA) from its co-shareholder Wintershall Dea AG. The transaction is currently awaiting approval from the competition authorities. SEFE is wholly owned by the Federal Republic of Germany. WIGA owns regulated gas pipeline operators GASCADE Gastransport GmbH and NEL Gastransport GmbH, who operate one of the largest high-pressure gas networks in Germany with a combined length of around 4,150 kilometres. These networks have a key role to play in European energy security and the green energy transformation. The transaction will strengthen SEFE in its role of ensuring secure and reliable energy supply in Germany and Europe, as well as boosting its hydrogen ex­pert­ise.“With the full acquisition of WIGA as sole shareholder, we are strategically strengthening SEFE as an independent and autonomous midstream company,” commented Reinhard Gorenflos, Chairman of the SEFE Supervisory Board.“SEFE being the sole shareholder of WIGA will ensure that GASCADE can convert the existing high-performance infrastructure to hydrogen in the future. In this way, we can help drive forward the green energy transformation. Transportation infrastructure is a pivotal part of the future hydrogen value chain,” said Dr Egbert Laege, CEO of SEFE. “The two WIGA subsidiaries, GASCADE and NEL, will continue to operate independently and market their capacity in a transparent and non-dis­crim­in­at­ory manner.”SEFE CFO Dr Christian Ohlms highlighted the importance of WIGA with regard to the privatisation of SEFE, which is due to take place by the end of 2028: “With this transaction, which is expected to complete by summer 2024, we are strengthening SEFE’s asset base. Our aim is to continue the long-term development of SEFE on a stable financial footing.”A multinational CMS team headed by Hamburg-based partner Dr Holger Kraft advised SEFE on all aspects of acquiring WIGA. In addition to extensive due diligence on the entire WIGA Group, including GASCADE and NEL, which are regulated under energy law, this work covered negotiation of the share purchase agreement and separate agreements with the shareholders of Wintershall Dea AG. Alongside negotiating the transaction agreements, the advice focused on safeguarding the transaction through several W&I insurance agreements, including negotiating the policies, and handling regulatory issues relating to gas network operation and other public-law matters. CMS Germany worked closely with the CMS law firms in the UK and Luxembourg, and with US law firm Faegre Drinker Biddle & Reath LLP. CMS previously advised the Federal Network Agency (BNetzA) and the Federal Ministry for Economic Affairs and Climate Action in 2022 and 2023 around their trusteeship over SEFE and its subsequent nationalisation by way of corporate actions. The instructions for this transaction followed on from that successful cooperation. About SEFE:As an integrated midstream energy company headquartered in Berlin, SEFE Securing Energy for Europe ensures the security of energy supply in Germany and Europe and is driving the green energy transformation. SEFE is active in trading & portfolio management, sales, transportation and storage of energy and has its strongest presence in Germany and the UK. SEFE employs around 1,500 people and supplies over 50,000 customers, in particular industrial customers and municipal utilities in Germany and seven other European markets. With a sales volume of around 200 TWh of power and gas, SEFE plays a central role in stability of the energy supply in Germany and Europe. SEFE is owned by the Federal Government of Germany. CMS Germany Dr Holger Kraft, Lead Partner Dr Jan Schepke, Partner Matthias Sethmann, Principal Counsel Dr Dirk Baukholt, Principal Coun­sel Char­lotte von der Heydt-von Kalckreuth, Counsel Dr Stefan Kühl, Senior Associate Dr Paul Kintrup, Senior Associate, all Corporate/M&A Dr Rolf Hempel, Partner Dr Friedrich von Burchard, Partner Nicole Köppen, Senior Associate, all Regulatory Dr Hermann Müller, Partner Dr Arno Görlitz, Associate, both Public Commercial Law Dr Martin Mohr, Partner Dr Olaf Thießen, Principal Counsel, both Tax Dr Alexandra Schluck-Amend, Partner Manuel Nann, Senior As­so­ci­ate Pit-Jo­hannes Wagner, Associate, all Restructuring Dr Andreas Hofelich, Partner Dr Mario Brungs, Counsel Dr Lena Pingen, Associate, all Em­ploy­ment/Pen­sions Dr Fritz von Hammerstein, Partner Jan Gröschel, Senior Associate Heike Weyer, Senior Associate, all Public Law Dr Stefan Voß, Partner Tamara Bux, Associate, both Real Estate Dr Sebastian Cording, Partner Martin Krause, Partner Dr Shaya Stender, Associate Joel Coché, Associate, all Commercial Dr Julia Runge, Principal Counsel, Finance Dr Michael Bauer, Part­ner Chris­toff Henrik Soltau, Partner Dr Robert Bodewig, Senior Associate Luisa Thomasberger, Associate, all Antitrust, Competition & Trade CMS UK Russel Hoare, Partner Sam De Silva, Part­ner Jean-Fran­cois Willems, Of Counsel Jennifer Louch, Senior As­so­ci­ate Max­imili­an Weaver, Senior Associate Louisa Mottaz, Associate CMS Luxembourg Angelique Eguether, Senior As­so­ci­ate Guil­laume Flagollet, Managing Associate Faegre Drinker Biddle & Reath LLP (USA) Mollie D. Sitkowski Inhouse at SEFE Securing Energy for Europe GmbH Dr Jörg Kammerer Jörn RimkePress Con­tact presse@cms-hs. com
25/03/2024
CMS advises on project financing for land-based terminal in Stade
Hamburg – Hanseatic Energy Hub GmbH (HEH) has achieved financial close for the project financing to develop and realise the planned terminal for liquefied gases in Stade. Total investment is some EUR 1.6 billion. Achieving financial close represents a major milestone for Hanseatic Energy Hub GmbH’s land-based terminal.A multi-dis­cip­lin­ary and multi-location CMS team headed by Dr Hilke Herchen and Dr Holger Kraft advised Hanseatic Energy Hub GmbH on developing the project and on preparations to secure the project financing. This included corporate law advice with a particular focus on developing and optimising corporate governance, and on the associated links to the project financing. This advice marks a continuation of the existing close cooperation between HEH and CMS. The CMS team has been providing advice on an ongoing basis since the start of the project, with support for project development around corporate, operation & maintenance and real estate matters in particular. This has included advising on various shareholders joining the project, with a recent example being Enagás S.A. as industrial partner in June 2023. The CMS team conducted a comprehensive due diligence check to put the project financing on a solid footing. The first expansion phase of the project will see an emission-free terminal begin operating in 2027. Its infrastructure is also approved for bio-LNG and synthetic natural gas (SNG). At a later stage, the project will be switched over to hydrogen-based energy carriers such as ammonia. The planned regasification capacity is 13.3 billion cubic metres per year and the send-out capacity is 21.7 gigawatt. From March 2024 until the onshore terminal becomes operational, Hanseatic Energy Hub GmbH will also accommodate one of the five FSRUs (Floating Storage and Regasification Units) chartered by the German federal government. CMS Germany Dr Hilke Herchen, Lead Partner Dr Holger Kraft, Lead Partner Matthias Sethmann, Principal Counsel Dr Luise Pelzer, Counsel Dr Stefan Kühl, Senior Associate Dr Carl-Friedrich Thoma, Senior Associate Dr Josephine Doll, As­so­ci­ate Domin­ic Zimmer, Associate Dr Christian Seeburger, Associate, all Corporate/M&A Dr Fritz von Hammerstein, Partner Katja Meisel, Senior Associate Jan Gröschel, Senior Associate, all Per­mit­ting Mar­tin Krause, Partner Dr Sebastian Orthmann, Partner Dr Hans Fabian Kiderlen, Principal Coun­sel Chris­toph­er Schmeckel, Senior Associate Wiebke Westermann, Associate, all Real Estate Dr Friedrich von Burchard, Partner, Energy & Climate Change Dorothée Janzen, Part­ner  Chris­toph Zarth, Partner Robin Azinovic, Associate, all Commercial Dr Kerstin Block, Partner, Banking & Finance  Dr Martin Mohr, Partner Dr Olaf Thießen, Principal Counsel, both Tax Dr Sebastian Cording, Partner Dr Anna Lena Füllsack, Senior Associate, both TMC Dr Michael Bauer, Partner Luisa Thomasberger, Associate, both Antitrust, Competition & Trade Dr Philipp Nonnenmühlen, Counsel, Labor, Employment & Pensions Dr Martin Gerecke, Partner, IP Birgit Wagner, Legal Manager, Smart OperationsPress Con­tact presse@cms-hs. com
20/02/2024
CMS advises Vance Street Capital on the acquisition of Galleon Embedded...
Hamburg – Vance Street Capital, a mid-market private equity fund, based in Los Angeles (USA), has acquired Galleon Embedded Computing GmbH. Galleon Embedded Computing GmbH was founded in 2009 and offers computer systems for the aerospace/de­fense sector as well as for demanding industrial and research applications. The acquisition of the German company complements the portfolio of Vance Street Capital, which had previously acquired an affiliated company of Galleon Embedded Computing GmbH in Norway. The parties have agreed not to disclose details of the transaction. CMS advised Vance Street Capital with a team led by lead partner Dr Eckart Gottschalk on all legal aspects of the acquisition. The advice included in particular the structuring of the transaction as well as the drafting and negotiation of the transaction doc­u­ment­a­tion. Press Con­tact presse@cms-hs. com   
01/09/2023
CMS advises on sale of Lorch Schweißtechnik GmbH to Daihen Corporation...
Stuttgart – Lorch Schweißtechnik GmbH, a leading manufacturer of state-of-the-art electric arc welding systems for industrial applications, is joining forces with Daihen Corporation of Japan. The deal...
17/03/2023
CMS advised Tree Energy Solutions on its joint venture with Fortescue Future...
Hamburg – CMS has advised Tree Energy Solutions (TES) on its joint venture with Fortescue Future Industries (FFI) to develop the Wilhelmshaven energy import terminal. TES has found a new partner in...
17/01/2023
CMS advises Warburg Bank on sale of Warburg Invest AG to Bantleon
Hamburg – Warburg Bank has sold all the shares in Warburg Invest AG to Bantleon AG as part of adopting a more focused strategy on institutional asset management. Warburg Invest AG is a German investment...
30/11/2022
CMS advises KfW IPEX-Bank on financing of maintenance facility for Hessische...
Hamburg – KfW IPEX-Bank is providing EUR 70 million of financing for a maintenance depot to be built by regional railway company Hessische Landesbahn. The funds will be raised in the form of a fixed...
03/11/2022
CMS advises shareholders M.M.Warburg & CO and LKH on sale of Warburg Hy­po­thek­en­bank...
Frankfurt/Main – The shareholders of M.M. Warburg & CO Hypothekenbank AG, namely M.M. Warburg & CO (AG & Co.) KGaA (60%) and Landeskranken­hil­fe V.V.a.G. (40%), have sold all their shares in Warburg...
12/09/2022
Landmark transaction: CMS advises Aquila Capital on the financing for 2.6...
Hamburg – Aquila Clean Energy EMEA, Aquila Capital’s clean energy development platform in Europe, has finalised a EUR 1 billion construction facility supported by the InvestEU programme. The bespoke...
28/07/2022
International CMS team advises UK-German €2.8 billion interconnector project...
Hamburg/London – NeuConnect, together with a consortium of more than 20 national and international banks and financial institutions, has reached financial close for the NeuConnect interconnector project...
07/07/2022
CMS advises Siemens Project Ventures on sale of stake in Veja Mate offshore...
Hamburg – Siemens Project Ventures GmbH (SPV) has sold its 20% stake in the Veja Mate offshore wind farm to VM Offshore Beteili­gungs­gesell­schaft mbH (VMOB). VMOB is a European consortium comprising...
18/05/2022
CMS advises Hengtong on acquisition of LEONI-owned j-fiber
Hamburg – Listed Chinese power cable and optical fibre manufacturer Hengtong has acquired all the shares in j-fiber GmbH, which is part of LEONI AG. The deal is being handled via Hengtong subsidiary...