Press release |

The ADVANT Alliance advises Cogne Acciai Speciali on the acquisition of leading seamless tube manufacturer Mannesmann Stainless Tubes

Berlin, 22 February 2024 - The European ADVANT Alliance with its three law firms ADVANT Nctm (Italy), ADVANT Beiten (Germany) and ADVANT Altana (France) has provided comprehensive legal advice to Cogne Acciai Speciali S.p.A. (CAS) on the acquisition of all shares in Mannesmann Stainless Tubes GmbH (MST) in a cross-border transaction.

CAS, based in Aosta (Italy), is a 70% subsidiary of Walsin Lihwa Corporation (Walsin) from Taiwan. The strategic acquisition strengthens CAS' position in Europe as a single-source provider of stainless steel and nickel alloy solutions and reinforces Walsin's strategy to expand into high-value, fast-growing market segments. The transaction is subject to the approval of the relevant regulatory authorities.

The ADVANT law firms advised Cogne Acciai Speciali under the leadership of Italian partner Vittorio Noseda comprehensively across multiple jurisdictions and locations. ADVANT Beiten, led by partners Dr Christian von Wistinghausen, Dr Marion Frotscher and Tassilo Klesen, advised on all matters of German law.

CAS is an international group of companies and has production facilities on three continents as well as sales offices in all economically important regions of the world. CAS processes austenites, martensites, ferrites, duplex and duplex materials through to nickel-based alloys for the automotive industry, the energy industry, in particular the oil and gas industry, medical technology, the food industry, chemical and plant engineering and general mechanical engi-neering.

MST joined Salzgitter AG in 2000 together with Mannesmannröhren-Werke. The MST company and its subsidiaries have around 1,000 employees world-wide, 260 of whom work at the two German sites in Remscheid and Mülheim in North Rhine-Westphalia. There are further sites in France, Italy and the USA. MST supplies leading global companies in the energy, aerospace, chemical, petrochemical and other markets that require pipe solutions that can withstand extreme pressure and temperature conditions.

CAS offers MST and the employees in the new organisation an outstanding entrepreneurial future. MST will benefit directly from the material supplies from CAS and will therefore be even better equipped to face the competition. At the same time, CAS will be able to utilize its melting capacities and expand its product portfolio along the value chain. The inclusion of MST in the Walsin/CAS family completes the strategy of forming a vertically integrated steel company.

The CAS parent company Walsin was founded in 1966 and has been listed on the Taiwan Stock Exchange since 1972. Walsin is an industrial conglomerate operating in the wire and cable, stainless steel and renewable energy sectors. With more than 40 production and sales locations in China, Europe, Southeast Asia and the USA, Walsin products are used in the aerospace, oil and gas, new energy, automotive, industrial and consumer goods industries. Walsin's headquarters are located in Taipei, Taiwan.

Advisor Cogne Acciai Speciali:
ADVANT Nctm: Vittorio Noseda (lead partner in charge), Lucilla Casati, Martina da Re (all Corporate/M&A), Francesco Mazzocchi (Antitrust department).

ADVANT Beiten: Dr Christian von Wistinghausen, Tassilo Klesen (both lead partners in charge), Christian Burmeister, Lelu Li, Olga Prokopyeva, Dr Eva Kreibohm, Damien Heinrich (all Corporate/M&A), Danah El-Ismail (Real Estate), Dr Marion Frotscher, Simon Bauer (both Tax), Christian Frederik Döpke, Mathias Zimmer-Goertz (both IP/IT/Media), Michael Riedel (Labour Law), Katrin Lüdtke (Public Law).

ADVANT Altana: Bruno Nogueiro (lead partner in charge), Arthur Boutemy, Théodore Sabot (all Corporate/M&A).

Public Relations ADVANT Beiten
Frauke Reuther
Manager Kommunikation
+49 (69) 75 60 95 - 570


The ADVANT Alliance advises Cogne Acciai Speciali on the acquisition of leading seamless tube manufacturer Mannesmann Stainless Tubes.pdf




Christian von Wistinghausen_ADVANT Beiten

Dr Christian von Wistinghausen

Rechtsanwalt, LL.M.


Tassilo Klesen_ADVANT Beiten

Tassilo Klesen



Christian Burmeister_Experte_ADVANT_Beiten

Christian Burmeister



Lelu Li_ADVANT Beiten

Lelu Li



Olga_Prokopyeva_ADVANT Beiten

Olga Prokopyeva


Senior Associate

Eva_Kreibohm_ADVANT Beiten

Dr Eva Kreibohm

Rechtsanwältin, Notarin- registered office Berlin


Experte_Damien Heinrich_ADVANT Beiten

Damien Heinrich



Danah El-Ismail_Expertin_ADVANT Beiten

Danah El-Ismail


Senior Associate

Marion_Frotscher_Experte_ADVANT Beiten

Dr Marion Frotscher

Rechtsanwältin, Steuerberaterin, M.I.Tax


Simon Bauer_Expertin_ADVANT Beiten

Simon Bauer

Rechtsanwalt, Steuerberater

Senior Associate

Christian Frederik_Döpke_Experte_ADVANT Beiten

Christian Frederik Döpke

Rechtsanwalt, LL.M., LL.M.

Senior Associate

Mathias_Zimmer-Goertz_ADVANT Beiten

Mathias Zimmer-Goertz



Michael_Riedel_Experte_ADVANT Beiten

Michael Riedel

Rechtsanwalt, Licensed Specialist for Labour Law


Katrin_Lüdtke_ADVANT Beiten

Katrin Lüdtke

Rechtsanwältin, Licensed Specialist for Administrative Law