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Wei Mun Chang

Work +603 2632 9881
Raja, Darryl & Loh

Work Department

Dispute Resolution,Construction and Energy.


Management Partner, Head of Construction and Energy, Construction Law, Oil and Gas, Arbitration.


Wei Mun’s practice includes all forms of dispute resolution in respect of the construction industry, particularly in arbitration, both domestic and international, adjudication and litigation. Over the years, many of his cases have been reported in the law journals.   His prowess in dispute resolution has led to him being named as a Leading Individual by The Asia Pacific Legal 500 for 2018 and 2019, a Leading Individual in Construction Dispute Resolution in Chambers Asia Pacific for a number of years since 2010, a Market-leading Lawyer in AsiaLaw Profiles for 2017 and 2018 and a “Dispute Resolution Star” by Benchmark Litigation in 2018.   A past President of the Malaysian Institute of Arbitrators, he has been appointed as sole arbitrator as well as co-arbitrator and president of 3-member tribunals in respect of various arbitrations locally and abroad.

Wei Mun is also experienced in the drafting and negotiation of documentation for construction and infrastructure projects. 


English; Bahasa Malaysia.


Advocate & Solicitor of the High Court of Malaya; Barrister & Solicitor of the High Court of New Zealand; Fellow of the Chartered Institute of Arbitrators; Fellow of the Malaysian Institute of Arbitrators; Fellow of the Singapore Institute of Arbitrators; Member of Panel of Arbitrators, International Chamber of Commerce, Malaysia; Member of  Panel of Arbitrators, Asian International Arbitration Centre (formerly Kuala Lumpur Regional Centre for Arbitration); Member of Panel of International Arbitrators, Korean Commercial Arbitration Board; Member of Panel of Arbitrators, Hong Kong International Arbitration Centre, Member of Panel of Arbitrators, Singapore International Arbitration Centre, Registered Mediator with the Malaysian Mediation Centre.


Bachelor of Laws, University of Canterbury [1985].


Dispute resolution

Within: Leading individuals

Chang Wei Mun - Raja, Darryl & Loh

Within: Dispute resolution

Counting medical negligence, construction, media and tax as particular strengths, the team at Raja, Darryl & Loh frequently handles high-profile cases. Raja Eileen Soraya represented The Edge Communications in an application for judicial review after The Edge Malaysia and The Edge Financial Daily were suspended following their coverage of the 1MDB scandal. Chang Wei Mun and arbitrator Ooi Huey Miin are also recommended. Darryl Goon left to join the bench, and senior associate Joni Benedict left to go in-house; but construction expert Joshua Chong and employment specialist Tham Li Vyen made partner in February 2018.

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Real estate and construction

Within: Leading individuals

Chang Wei Mun - Raja, Darryl & Loh

Within: Real estate and construction

Raja, Darryl & Loh is especially strong in construction. Group head Chang Wei Mun advised CCM Duopharma Biotech on various contractual matters regarding the construction of its RM141m plant-and-warehouse complex in Klang. The firm also handles contentious construction work; construction litigator Joshua Chong, who made partner in 2018, assisted Chang with acting for BumiMetro Construction in an arbitration against Monday-Off Development regarding the construction of a condominium project in Mont Kiara.

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Legal Developments by:
Raja, Darryl & Loh

  • Amendments to the Employment Act 1955

    The Employment (Amendment) Act 2012 received royal assent and became law on 30th January 2012. It has now come into operation since 1st April 2012.
    - Raja, Darryl & Loh

Legal Developments in Malaysia

Legal Developments and updates from the leading lawyers in each jurisdiction. To contribute, send an email request to
  • Call for AML Regulation for Cryptocurrencies

    Ever since the creation of Bitcoin, cryptocurrencies have been applauded and welcomed for constituting an innovative method of payment without any recourse to financial institutions and their entailing bureaucracy.  While honest individuals rejoiced at cryptocurrencies’ legitimate benefits; ranging from an increased degree of privacy and confidentiality to less transactional costs, cybercriminals saluted the decentralised networks and perceived anonymity behind cryptocurrencies for presenting them with the perfect crypto cleansing opportunity to launder money in an unprecedented and largely unregulated sector in the financial industry.
  • Office for Competition Issues its First Commitments Decision

    The Office for Competition has adopted what appears to be its first commitments decision, in a case where it raised concerns about exclusivity agreements lasting for five years or more.
  • The Financial Services Act 2012

    (Part 1 of 4) By Gopal Sundaram
  • The Islamic Financial Services Bill 2012

    (Part 1 of 4) By Gopal Sundaram Jan 2013
  • Amendments to the Employment Act 1955

    The Employment (Amendment) Act 2012 received royal assent and became law on 30th January 2012. It has now come into operation since 1st April 2012.
  • Malaysian Corporations Making Headway in the Global M&A Scene

    Malaysian companies continue to make waves internationally by acquiring large companies abroad. Leveraging on the European debt crisis and the weak dollar, these companies have boldly made their mark on a global scale with impressive deals. Cross-border acquisitions are increasing trend in the Asian economic hot spots, with companies in China and India spearheading it. The consistently strong uptrend in foreign acquisitions and the increasing success of the same by China and India for the past few years has spurred growing interests of Southeast Asian companies to extend their reach to other continents.
  • Adjudication in Malaysia – the Construction Industry Payment and Adjudication Act 2012

    The Construction Industry Payment and Adjudication Act of Malaysia received royal assent and became law on 18th June 2012.

    PRESUMPTION OF GUILT – REMEDY OR JEOPARDY? Netizens in Malaysia now share a common fear and feeling of uneasiness following the swift passing of the Evidence (Amendment) (No.2) Bill 2012 in May 2012, which amends the Evidence Act 1950.
  • FGVH's IPO - Second Largest in the World after Facebook

    Malaysia’s Felda Global Ventures Holdings Berhad (“FGVH”) is a global agricultural and agri-commodities company, with operations in ten countries across the globe. According to Frost & Sullivan Malaysia Sdn Bhd, FGVH is the third largest oil palm plantation operator in the world based on planted hectarage in 2011. FGVH currently operates 343,521 hectares of oil palm plantation estates in Malaysia that produced 5.2 million metric tonne of fresh oil palm fruit bunches in 2011.
  • Competition...Friend or Foe?

    The announcement of the Malaysia Airlines (MAS)-AirAsia collaboration on 9 August 2011 was questioned by many quarters.