Gauthier advises companies on planning and environmental law - with a particular focus on permits for industry and manufacturing, real estate and energy transition projects and technologies. He specialises in European Green Deal regulations and climate change (including EU ETS, CBAM, voluntary carbon markets) sustainability disclosures and reporting (including CSRD), business and human rights issues in supply chains (CSDDD, Deforestation Regulation, Batteries Regulation, Conflict Minerals) and greenwashing (advice and litigation) .

Gauthier advises on compliance with REACH and other EU chemical regulations, as well as with EU product regulations (including packaging and packaging waste, ELV, Batteries, WEEE and RoHS) and waste, contaminated land, hazardous substances and environmental compliance issues.

He also assists public authorities, companies, banks, public-funded entities and utilities on all types of public contracts, including public-private partnerships (PPPs), public procurement and large transactions, such as concessions (water distribution, waste management etc) and granting of limited rights (schaarse rechten like subsidies, licenses, operating rights, access to public contracts and property).

Gauthier has a deep understanding of the different procedures, approaches and strategies required to deal with complex environmental and public law issues, and has extensive litigation experience in these areas of law before the administrative, civil and criminal courts, as well as before the European courts.