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Thales Mertens



Mertens Thales
Thales Mertens



Thales is head of our Belgian Litigation & Contracts practice. He specialises in insolvency-related matters (both contentious and non-contentious) and post-closing litigation, both local and international, in addition to more general contract-related advice.

He can draw on more than 15 years’ experience of advising both banks and corporate multinationals on complex reorganisations, restructurings and insolvency proceedings. He has also acted in a broad range of complex post-M&A, real estate and commercial disputes (both in court and in arbitration). In addition to this contentious experience, Thales advises both suppliers and customers on a wide variety of commercial contracts involving many different jurisdictions and sectors.

Thales is a regular lecturer, and has published on the Vienna Sales Convention, and on various insolvency-related topics.

News & insights

Collection of lights

Publications: 30 NOVEMBER 2021

The sun never sets on English law governed debt: reviewing the Re Prosafe SE decision

The recent decision in Re Prosafe SE pits the principle of freedom of contract against the increasingly popular modified universalism in the cross-border restructuring and insolvency space.

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Publications: 30 NOVEMBER 2021

2021/2022 – Another eventful year for Thai competition law

While the ongoing global pandemic has had a temporary braking effect on some business sectors and international travel, Thai competition law has continued to develop at pace in an attempt to catch up…

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Windows on a modern glass and metal building

Publications: 07 OCTOBER 2021

M&A litigation – a case of back to the future

An expected tidal wave of Covid-related M&A litigation has not materialised, but the current spate of deals and rising prices could see disputes spike and investors turn once again to the courts.

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Publications: 30 MARCH 2021

Introduction of a pre-pack insolvency procedure in Belgium

On Friday, 26 March 2021, the Belgian Insolvency Law was amended with the introduction of a pre-packaged insolvency procedure, allowing the debtor to discretely prepare for judicial reorganisation…

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Allen & Overy (Belgium) LLP
Tervurenlaan 268A avenue de Tervueren

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Member of the Brussels bar, 2004


Degree, Law, Katholieke Universiteit Leuven (KUL), 2003

LLM, Cornell University, 2004

Published work

  • B. DE BOCK, T. MERTENS, “Introduction of a pre-pack insolvency procedure in Belgium”, HERO - Herstructurering & Recovery Online, 12 April 2021.