Thea Elyssa Vega

Foreign Lawyer, Wong Partnership

Thea Elyssa Vega is a Foreign Lawyer at the International Arbitration practice group of WongPartnership LLP.

Prior to joining the firm, she was Counsel at the Singapore International Arbitration Centre (SIAC) where she managed and oversaw hundreds of arbitration proceedings under various editions of the SIAC and UNCITRAL rules across various sectors and jurisdictions, with a particular focus on the Philippines and the APAC region.

She was also previously an Associate Solicitor II at the Office of the Solicitor General - Philippines where she handled criminal, civil cases, investor-state and international commercial arbitration cases administered by various institutions such as ICSID, PCA, ICC.

Contributed to

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SIAC (2025)—early dismissal of claims and defences, preliminary determination

Practice Notes

This Practice Note considers early dismissal or claims and defences under the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules). The 2025 SIAC Rules apply to arbitrations commenced on or after 1 January 2025, unless the parties have agreed otherwise.

Arbitration

SIAC (2025)—evidence and conduct of proceeding

Practice Notes

This Practice Note considers the core provisions of the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules) concerning the presentation of evidence. The Practice Note considers documentary, witness and expert evidence. The 2025 SIAC Rules apply to arbitrations commenced on or after 1 January 2025, unless the parties have agreed otherwise.

Arbitration

SIAC (2025)—multiple contracts, joinder and consolidation

Practice Notes

This Practice Note considers the position of multiple contracts, joinder and consolidation under the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules). The 2025 SIAC Rules apply to arbitrations commenced on or after 1 January 2025, unless the parties have agreed otherwise. This topic may be referred to as multi-party and multi-contract SIAC arbitration proceedings.

Arbitration

SIAC (2025)—responding to a Notice of Arbitration

Practice Notes

This Practice Note considers how a party (the respondent) responds to a Notice of Arbitration under the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules), including the relevant time limits that must be adhered to. The Practice Note considers the contents of the Response to the Notice of Arbitration, how to file a counterclaim and the relevant fees payable. This topic may be referred to as defending SIAC arbitration proceedings.

Arbitration

SIAC (2025)—starting an arbitration

Practice Notes

This Practice Note considers how to commence (or start) an arbitration under the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules). The 2025 SIAC Rules apply to arbitrations commenced on or after 1 January 2025, unless the parties have agreed otherwise. This topic may be referred to as instituting, starting or beginning SIAC arbitration proceedings or process.

Arbitration

SIAC (2025)—the award and costs

Practice Notes

This Practice Note considers the provisions dealing with awards pursuant to the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules). It considers when the award is made, what is must contain and its effect. The Practice Note also sets out how to apply for an incorrect award to be amended and how an award can be made in the event of settlement. It also considers the costs of a SIAC arbitration. The 2025 SIAC Rules apply to arbitrations commenced on or after 1 January 2025, unless the parties have agreed otherwise.

Arbitration

SIAC (2025)—the tribunal

Practice Notes

This Practice Note considers matters relating to the appointment of the arbitral tribunal (arbitrator(s)) under the Arbitration Rules of the Singapore International Arbitration Centre (SIAC) (7th edition) 2025 (2025 SIAC Rules). The 2025 SIAC Rules apply to arbitrations commenced on or after 1 January 2025, unless the parties have agreed otherwise.

Arbitration