JUDGMENT

Mary Lim Thiam Suan J:

Introduction

[1] These four applications are heard together. Two of them, Originating Summons No: 24C-15-04-2015 and Originating Summons No: 24C-11-04- 2015 concern an adjudication decision made by IR Leon Weng Seng on 6 April 2015. The other two Originating Summons Nos: 24C-16-05-2015 and 24C-9-04-2015 concern an adjudication decision made by Murelidaran M Navaratnam on 30 March 2015.

[2] All four originating summons were heard together. It makes every good sense since these cases concern the same primary parties who had entered into two separate yet related contracts. The disputes that arose between them went to two separate adjudications, both of which are under challenge. Ranhill E&C Sdn Bhd ("Ranhill"), the successful party, is seeking to enforce both decisions under s 28 of the Construction Industry Payment and Adjudication Act 2012 ("CIPAA 2012") while Tioxide (Malaysia) Sdn Bhd ("Tioxide") is seeking to set aside both decisions under s 15 of the same Act.

[3] There are many common grounds relied on both parties in respect of all four cases. All four cases were heard together with written and oral submissions made by all counsel. The part