Hong Kong High Court Grants Leave to Appeal as to Whether Service by SMS Constitutes Proper Service
Published 26 October 2025
Sarah Xuan
On 20 October 2025, the Hong Kong High Court granted limited leave to appeal in CCC v AAC, a case arising from an arbitral award enforced under the Hong Kong Arbitration Society Online Arbitration Rules.
The Court recognized that the question of whether service of notice of arbitration by Short Message Service (“SMS”) constitutes proper notice, especially in a consumer arbitration context, raises an issue of general public importance deserving appellate consideration. This decision marks an important step in Hong Kong’s evolving jurisprudence on digital dispute resolution and the use of electronic communications in arbitration.
[Background] The dispute originated from a loan transaction between the Applicant, CCC (a licensed moneylender), and the Respondent, AAC. After the Respondent defaulted on repayment, the Applicant commenced arbitration under the Hong Kong Arbitration Society Online Arbitration Rules. The arbitrator issued an award on 4 November 2024 in favor of the Applicant. Subsequently, Justice Mimmie Chan of the High Court made an order on 4 August 2025 enforcing the arbitral award. The Respondent applied to set aside the enforcement order, arguing that he had not been properly notified of the arbitration and that the arbitrator had failed to consider key statutory issues under the Money Lenders Ordinance (Cap. 163). In a judgment dated 18 July 2025 ([2025] HKCFI 2987), Deputy High Court Judge Sir William Blair dismissed that application. The Respondent then sought leave to appeal, which led to the present decision on 20 October 2025. [Court’s Analysis and Decision] In the decision, the judge examined the draft grounds of appeal advanced by the Respondent and reached the following conclusions: 1. Factual Challenges to Notice and Participation The first two grounds concerned whether the Respondent had received the arbitration notice via SMS and whether he had a fair opportunity to participate in the proceedings. The judge found these to be purely factual matters, already determined by the arbitrator and affirmed in the earlier judgment. They had no reasonable prospect of success, and leave was refused on these grounds.
2. Alleged Procedural Deficiencies under the Money Lenders Ordinance The Respondent contended that the arbitrator had “rubber-stamped” the Applicant’s claim without properly applying the Money Lenders Ordinance. Sir William Blair held that the arbitrator had adequately considered the relevant statutory requirements and exercised proper judgment. Leave was refused on this ground as well.
3. The Novel Issue — SMS as Proper Notice in Online Arbitration The most significant issue was whether notice of arbitration sent via SMS satisfies the requirement of proper service, particularly in a consumer arbitration context. Sir William Blair observed that this is a novel question for Hong Kong law, implicating both access to justice and procedural fairness in the era of digital arbitration. Balancing the efficiency benefits of online platforms against the due process risks inherent in electronic notice, the judge held that this issue is one of general principle and public importance. Accordingly, leave to appeal was granted for this ground.
[Outcome and Procedural Orders] The High Court made the following orders: 1. Leave to appeal granted only on the question of SMS notice validity;2. Leave refused on all other grounds;3. Enforcement of the arbitral award stayed pending appeal or further order;4. Costs reserved to the Court of Appeal. Comment The decision in CCC v AAC highlights the judiciary’s evolving engagement with technology-driven arbitration mechanisms. While the High Court reaffirmed its confidence in the integrity of online arbitration, it also acknowledged the need for judicial guidance on the procedural safeguards applicable when technology mediates access to justice.
The Court recognized that the question of whether service of notice of arbitration by Short Message Service (“SMS”) constitutes proper notice, especially in a consumer arbitration context, raises an issue of general public importance deserving appellate consideration. This decision marks an important step in Hong Kong’s evolving jurisprudence on digital dispute resolution and the use of electronic communications in arbitration.
[Background] The dispute originated from a loan transaction between the Applicant, CCC (a licensed moneylender), and the Respondent, AAC. After the Respondent defaulted on repayment, the Applicant commenced arbitration under the Hong Kong Arbitration Society Online Arbitration Rules. The arbitrator issued an award on 4 November 2024 in favor of the Applicant. Subsequently, Justice Mimmie Chan of the High Court made an order on 4 August 2025 enforcing the arbitral award. The Respondent applied to set aside the enforcement order, arguing that he had not been properly notified of the arbitration and that the arbitrator had failed to consider key statutory issues under the Money Lenders Ordinance (Cap. 163). In a judgment dated 18 July 2025 ([2025] HKCFI 2987), Deputy High Court Judge Sir William Blair dismissed that application. The Respondent then sought leave to appeal, which led to the present decision on 20 October 2025. [Court’s Analysis and Decision] In the decision, the judge examined the draft grounds of appeal advanced by the Respondent and reached the following conclusions: 1. Factual Challenges to Notice and Participation The first two grounds concerned whether the Respondent had received the arbitration notice via SMS and whether he had a fair opportunity to participate in the proceedings. The judge found these to be purely factual matters, already determined by the arbitrator and affirmed in the earlier judgment. They had no reasonable prospect of success, and leave was refused on these grounds.
2. Alleged Procedural Deficiencies under the Money Lenders Ordinance The Respondent contended that the arbitrator had “rubber-stamped” the Applicant’s claim without properly applying the Money Lenders Ordinance. Sir William Blair held that the arbitrator had adequately considered the relevant statutory requirements and exercised proper judgment. Leave was refused on this ground as well.
3. The Novel Issue — SMS as Proper Notice in Online Arbitration The most significant issue was whether notice of arbitration sent via SMS satisfies the requirement of proper service, particularly in a consumer arbitration context. Sir William Blair observed that this is a novel question for Hong Kong law, implicating both access to justice and procedural fairness in the era of digital arbitration. Balancing the efficiency benefits of online platforms against the due process risks inherent in electronic notice, the judge held that this issue is one of general principle and public importance. Accordingly, leave to appeal was granted for this ground.
[Outcome and Procedural Orders] The High Court made the following orders: 1. Leave to appeal granted only on the question of SMS notice validity;2. Leave refused on all other grounds;3. Enforcement of the arbitral award stayed pending appeal or further order;4. Costs reserved to the Court of Appeal. Comment The decision in CCC v AAC highlights the judiciary’s evolving engagement with technology-driven arbitration mechanisms. While the High Court reaffirmed its confidence in the integrity of online arbitration, it also acknowledged the need for judicial guidance on the procedural safeguards applicable when technology mediates access to justice.