Jonathan Ah-weng

Call 2003 (Hong Kong)


English, Cantonese, Mandarin


T: +852 2840 1130

Secretary: Ms. Kit Lai


Jonathan is very well-respected and liked by lay clients as he can use very user-friendly language to explain difficult ideas to them. He is also always skilful in extracting what he wants from his opponents’ witnesses without appearing to be aggressive.” – Legal 500

Jonathan has been recommended in Doyle’s Guide and Legal 500 for his criminal, and family & private client practice.  His practice includes a broad range of complex criminal matters, including commercial and white collar crime, SFC related offences, regulatory offences and private prosecutions.

Jonathan also acts in civil commercial matters, including those involving frauds, trusts, probate, and high conflict matrimonial disputes.  In both his criminal and civil practice, Jonathan regularly advises high net worth clients and companies, both locally and in China.  Jonathan is a seasoned trusted advocate in all levels of court and tribunals.  He is a fellow of CIArb and a CEDR mediator.

Outside practice, Jonathan has been an active advocacy trainer in Hong Kong since 2007, for young barristers, Department of Justice and recently the Hong Kong Stock Exchange.  He has also been invited to train lawyers abroad in other jurisdictions, including  Malaysia/ Singapore/ South Africa.  In public service, Jonathan is a member of the Chief Executive’s Election Committee, and serves as honorary secretary to Union Church (Cap.1052).  He also serves as chairman for Building Appeal Tribunal.

Practice Areas

General Civil Litigation
General Criminal Litigation
Commercial Law
Company Law
Family Law
Equity and Trusts
White-Collar Crime



University of Hong Kong


LL.M. (Intellectual Property),
University of London


LL.B. (Hons),
Durham University
  • Associate, Hong Kong Institute of Arbitrators
  • CEDR Accredited Mediator (2007 – present)
  • Executive Committee, Hong Kong Advocacy Training Council
  • Assistant editor to, Simon N.M. Young, “Civil Forfeiture of Criminal Property in Hong Kong”, Edward Elgar Publishing (2009)

HKSAR v Yahoo! Hong Kong Limited, KTS 22777 & 22778/2016  – successful defence against charge of “exhibiting for sale” unlawful electronic products on website. 

Koon Wing Yee v Hui Chi Ming, ESS 25220/2015 (led by Graham Harris SC, Robert Pang SC) – successful defence against private prosecution summons on dissemination of false or misleading information inducing transactions under Securities and Futures Ordinance. 

Eric Edward Hotung v Ho Yuen Ki & Ors, HCA 857/2011 (led by C.Y. Li SC) ­– acted for respondent in opposing security for costs application.

HKSAR v Nanik Dayaram & Ors, HCCC 2/2014 (led by Michael Blanchflower SC) – acted for defence against charge concerning letters of credit fraud involving HK$440 million.

CWG v MH & Ors, CACV 80/2013, HCMP 643/2012 (led by David Pilbrow SC) – acted for respondent on issue of whether he had beneficial interest in assets held by his mother. 

HKSAR v Sze Mei Mun & Ors, (led by James Lewis QC, Michael Blanchflower SC), FAMC No.56/2014; [2014] 3 HKLRD 452 – acted for defence on charge of cross border conspiracy to export unmanifested marine diesel.

HKSAR v Ng Chun To Raymond, CACC 178/ 2010 (led by Clare Montgomery QC, Clive Grossman SC) – successful appeal leading to retrial (then led by Andrew Bruce SC) on conspiracy charges on cross border warrant pushing scheme.

Siegfried Adalbert Unruh v Hans-Joerg Seeberger, HCA 6641/2010 (led by Anthony K.K. Chan SC) – acted for defendant in contract claim.