The Hong Kong International Arbitration Centre has named CMS partner Mariel Dimsey as its new secretary-general and Eric Ng, who currently serves as managing counsel, as its new deputy secretary-general. The pair succeed Sarah Grimmer and Joe Liu, respectively.

Grimmer, who has had a six-year stint as secretary-general, will officially step down from her role in August, and join Twenty Essex in Singapore as a full-time arbitrator. During her time in the role, she was an integral part of the revised 2018 Administered Arbitration Rules, Hong Kong’s successful bid for the ICCA Congress 2024, and the institution’s pivot to virtual hearing services during the pandemic.

She also oversaw the launch of the HKIAC Case Digest, a database of HKIAC procedural decisions, and HKIAC Case Connect, an online case management system provided free of charge in HKIAC cases. In three of the last six years at the helm, HKIAC saw record numbers of arbitrations.

Meanwhile, Liu spent eight years at HKIAC, including five months as acting secretary-general. He leaves in June to set up his own practice, JLIU Dispute Resolution, as an independent arbitrator.

Dimsey, the incoming secretary-general, has more than 15 years of experience as advisor, advocate, expert, and arbitrator in international arbitration. She joined CMS in Hong Kong in 2018, and was named a partner in January 2019. Prior to that, she worked with Hogan Lovells and Cleary Gottlieb Steen & Hamilton.


Related Articles

HKIAC appoints A&O partner as new secretary-general

by Mari Iwata |

The Hong Kong International Arbitration Centre has announced that Joanne Lau, currently a partner at Allen & Overy, will become its new secretary-general. She will commence her role on Feb. 26.

Hong Kong Arbitration: Bouncing Back

​​​​​​​The HKIAC’s arbitration caseload reached its highest level for more than a decade last year, underlining Hong Kong’s continuing international appeal as well as its unique strengths as a seat for China-related. Lawyers say that additional measures like third-party funding and success-based fee arrangements are set to cement the city’s reputation further.

‘Hong Kong has a great position, not only with respect to China but also to APAC’

by Sarah Wong |

Mariel Dimsey, most recently a partner and co-head of the international arbitration group at CMS, was recently named as the new secretary-general of the Hong Kong International Arbitration Centre. In this interview with ALB, she talks about what she brings to the role, as well as her plans to change the perception of arbitration in Hong Kong.