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Onoro Sainz Elena

Elena Oñoro

Partner

Elena´s practice focuses on international arbitration and taxation. Elena is a State Tax Inspector (currently on leave of absence) and a former senior member of the International Arbitration Department of Spain´s State Lawyers´ Office.

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Awards and Recognition

Arbitration Team of the Month – Jus Mundi

In April 2021 Jus Mundi featured the International Arbitration Department of the State Lawyers´ Office (Ministry of Justice) of the Kingdom of Spain as Arbitration Team of the Month, of which Elena was part, for their work and successes in international investment arbitrations in the renewable energy sector.

Biography

Languages - Spanish, English and French
Jurisdiction - Spain

Elena specialises in international arbitration, having acted as counsel in numerous complex international arbitrations across a variety of sectors. Elena also specialises in tax matters such as tax litigation, private wealth and taxation in the energy sector.

Prior to joining Stephenson Harwood, Elena has been a member of the International Arbitration Department of Spain´s State Lawyers´ Office at the Ministry of Justice for more than ten years, where she has represented Spain in more than 50 investment arbitrations under ICSID, SCC and UNCITRAL rules regarding claims of over 25 billion euros mainly on renewable energy projects, taxation, bank financing of projects and mining. She has also acted as counsel for Spain in more than 10 award annulment proceedings. 

As a State Tax Inspector (currently on leave of absence) she has held various responsibilities at Spain´s State Agency for Tax Administration, the Madrid Regional Economic-Administrative Tribunal and the Ministry of Finance, where she was the Head of Tax Advice at the Cabinet of the Secretary of State for Taxes.

Elena was previously a lawyer at another leading international law firm.

Elena´s combined professional experience both in the public and private sectors offers clients unique comprehensive legal advice. 

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