Hanipah Farikullah FCJ (Majority):

Introduction

[1] There are two appeals before us. In the first, the appellant is the Asian International Arbitration Centre ('the AIAC'), formerly known as the Kuala Lumpur Regional Centre for Arbitration ('the KLRCA'). The AIAC is an independent and supranational arbitral institution established in 1978 under the auspices of the Asian-African Legal Consultative Organization ('the AALCO').

[2] The 1st respondent is One Amerin Residence Sdn Bhd ('One Amerin'), and the 3rd respondent is Ragawang Corporation Sdn Bhd ('Ragawang'). One Amerin and Ragawang are both private companies incorporated in Malaysia and were, respectively, the respondent and the claimant in an adjudication claim commenced by Ragawang against One Amerin pursuant to the Construction Industry Payment and Adjudication Act 2012 ('the CIPAA').

[3] The 2nd respondent, Choon Hon Leng, was the adjudicator appointed by the AIAC for the aforesaid adjudication proceedings under s 21(b)(i) of the CIPAA. The 4th and 5th respondents are respectively the Minister of Works and the Minister in the Prime Minister's Department (Law).

[4] In the second appeal, the AIAC is also the appellant, wh