Introduction

In a significant judgment rendered on 26 January 2026, the Dubai Court of Cassation (Commercial Appeal No. 1262 of 2025) reaffirmed the narrow scope of judicial intervention in arbitration matters under Federal Law No. 6 of 2018 on Arbitration. The ruling provides critical clarification on the enforceability of arbitration agreements concluded through electronic communications, the limits of annulment grounds, confidentiality issues, and the doctrine of waiver during arbitral proceedings.

This decision reinforces the pro-arbitration approach adopted by UAE courts and strengthens legal certainty for parties engaging in arbitration under DIAC and similar institutional frameworks.

Validity of Arbitration Agreement Through Electronic Correspondence

One of the principal arguments raised by the appellant was that no written and signed arbitration agreement existed, as the subcontract was allegedly unsigned. The Court firmly rejected this argument.

The Court emphasized that Article 7 of the UAE Arbitration Law requires the arbitration agreement to be in writing as a condition of validity. However, “writing” is not restricted to a physically signed document. Electronic correspondence, including emails and modern communication methods, may satisfy the writing requirement provided they evidence offer and acceptance.

The Court further clarified that under UAE electronic transactions legislation, electronic records, electronic documents, and electronic signatures carry the same legal weight as traditional written documents. Accordingly, arbitration agreements may be established through email exchanges without the necessity of a single signed instrument.

Importantly, the Court reaffirmed that contract formation does not require offer and acceptance to appear in a single document. Mutual consent may be inferred from conduct, correspondence, invoices, performance, and surrounding circumstances.

Performance as Evidence of Contractual Consent

The appellant argued that works were executed based on a letter of appointment (LOA) rather than the subcontract containing the arbitration clause. However, the Court upheld the lower court’s finding that the subcontract printed on the appellant’s own letterhead and sent by it evidenced mutual intention to contract.

The Court confirmed that the trial court has full discretion to assess evidence and infer the meeting of minds. As long as its reasoning is logical and supported by documents in the record, the Court of Cassation will not interfere.

This principle underscores the judiciary’s reluctance to revisit factual determinations or reassess evidentiary weight in annulment proceedings.

Appointment of Sole Arbitrator and Institutional Authority

The appellant also challenged the appointment of a sole arbitrator, arguing that the parties intended to appoint a three-member tribunal.

The Court rejected this ground, noting that the arbitration clause referred disputes to DIAC Rules without conclusively fixing the number of arbitrators. Where the arbitration agreement does not definitively specify the tribunal’s composition, the institutional rules govern.

The Court confirmed that DIAC acted within its authority when, after the parties failed to agree within the prescribed time, it appointed a sole arbitrator in accordance with its rules. Therefore, no procedural violation occurred.

The judgment makes clear that institutional discretion, when exercised in line with agreed arbitration rules, will not constitute grounds for annulment.

Confidentiality and Use of Professional Email

One notable aspect of the case concerned allegations that the arbitrator breached confidentiality by using a professional email account linked to his employer. The appellant claimed that this exposed confidential materials to potential third-party access.

The Court decisively rejected this argument.

It held that Article 33 of the Arbitration Law mandates confidentiality of arbitration proceedings, but a breach of confidentiality is not included among the exhaustive annulment grounds under Article 53. Even assuming a confidentiality violation occurred, it would not automatically invalidate the award. Instead, it may give rise to a separate liability claim against the responsible party.

Furthermore, the Court clarified that mere hypothetical risk of disclosure is insufficient. The burden rests on the party alleging breach to prove actual violation or material prejudice.

This distinction is critical: procedural irregularities do not automatically amount to annulment unless they fall within Article 53.

Extension of Time for Rendering the Award

Another argument concerned the extension of the deadline for issuing the award. The appellant claimed that the arbitrator exceeded permissible time limits.

The Court reiterated an important principle: the arbitration period is primarily subject to party agreement. Even absent express agreement, parties may implicitly consent to extensions through conduct including continued participation without objection.

In this case, written electronic confirmations from both parties’ representatives evidenced consent to the extensions. Consequently, no ground for annulment existed.

The Court reaffirmed that silence or participation without timely objection constitutes waiver under Article 25 of the Arbitration Law.

Right to Defense and Absence of Oral Hearing

The appellant further argued that its right to defense was violated because no oral hearing was conducted and certain documents were allegedly not produced.

The Court emphasized that annulment proceedings focus on procedural legality, not reassessment of evidentiary sufficiency. Arbitration tribunals have discretion under institutional rules to determine whether a hearing is necessary.

Here, the tribunal invited submissions on whether an oral hearing was required and ultimately decided to proceed on documents. Since the appellant failed to prove that it was prevented from presenting its case or submitting memoranda, no violation of due process occurred.

The Court reiterated that judicial review does not extend to re-evaluating factual findings or evidentiary weight.

Exhaustive Nature of Article 53 Grounds

Perhaps the most important takeaway from the judgment is the Court’s strict interpretation of Article 53 of the UAE Arbitration Law.

Grounds for annulment are exhaustively enumerated and must be interpreted narrowly. Courts may not expand them by analogy. Errors of law, misapplication of evidence, or dissatisfaction with the tribunal’s reasoning do not justify annulment.

Judicial oversight is limited to verifying:

• Existence and validity of the arbitration agreement
• Proper constitution of the tribunal
• Respect for due process
• Compliance with mandatory public policy provisions
• Substantive review of the merits is strictly excluded.

Conclusion

This judgment strongly reaffirms the UAE’s arbitration-friendly framework. It highlights several essential principles:

• Arbitration agreements may be proven through electronic correspondence.
• Institutional rules govern procedural matters when parties remain silent.
• Waiver operates when objections are not timely raised.
• Confidentiality breaches do not automatically invalidate awards.
• Annulment grounds are strictly limited and cannot be expanded.
• Courts will not review merits or reassess evidence.

For commercial parties operating in the UAE particularly those using DIAC arbitration this ruling provides reassurance that arbitral awards will be upheld absent clear procedural violations falling squarely within Article 53.

The decision further strengthens Dubai’s standing as a robust arbitration hub aligned with international best practices, reinforcing predictability, finality, and respect for party autonomy.

If you require further clarification or legal assistance concerning the matters discussed in this article, please do not hesitate to contact Khairallah Advocates & Legal Consultants LLC. Our lawyers would be happy to assist you.

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