(iv) in view of the Main Contractor’s Duties (Employer), Project Consultants’ Duties (Employer), Sub-Contractor’s Duties (Main Contractor) and Duties of Sub-Contractor’s Consultant (Sub-Contractor) [please refer to the above sub-paragraphs (1) to (3) and (6)], there is a “normal chain of liability” as explained by Dillon LJ in United Kingdom’s (UK) Court of Appeal in Simaan General Contracting Co v Pilkington Ltd (No 2) [1988] 1 QB 758, at 785-786, as follows - “But in the present case I can see nothing whatever to justify a finding that the defendants had voluntarily assumed a direct responsibility to the plaintiffs for the colour and quality of the glass panels. On the contrary, all the indications are the other way and show that a chain of contractual relationships was deliberately arranged the way it was without any direct relationship between the plaintiffs and the defendants. … It might at first glance seem reasonable that, if the plaintiffs have a right of action in contract against Feal and Feal has in respect of the same general factual matters a claim in contract - albeit a different contract - against the defendants, the plaintiffs should be allowed a direct claim against the defendants. But in truth to allow the plaintiffs a direct claim against the defendants where there is no contract between them would give rise to formidable difficulties. If the plaintiffs have a direct claim against the defendants so equally or a fortiori has the Sheikh. Feal has its claim in contract also. All three claims should be raised in separate proceedings, whether by way of arbitration or litigation, and possibly in separate jurisdictions. The difficulties of awarding damages to any one claimant would be formidable, in view of the differing amounts of retentions by the Sheikh against the plaintiffs and by the plaintiffs against Feal and other possibilities of set off, and in view, even more, of the fact that none of the parties has yet actually incurred the major cost of replacing the defendants' (assumedly) defective glass panels with new panels of the correct colour. It would not be practicable, in my view, for the court to award damages against the defendants in a global sum for all possible claimants and for the court subsequently to apportion that fund between all claimants and administer it accordingly. Moreover, if in principle it were to be established in this case that a main contractor or an owner has a direct claim in tort against the nominated supplier to a sub-contractor for economic loss occasioned by defects in the quality of the goods supplied, the formidable question would arise, in future cases if not in this case, as to how far exempting clauses in the contract between the nominated supplier and the sub-contractor were to be imported into the supposed duty in tort owed by the supplier to those higher up the chain. Such difficulties were dismissed by Lord Brandon in Leigh and Sillavan Ltd. v. Aliakmon Shipping Co. Ltd. [1986] AC 785, 817-819, and provided, as I read his speech, part of his reasoning for maintaining the established principle which I have set out at the beginning of his judgment. If, by contrast, the court does not extend - and in my judgment it would be an extension - the principle of the Hedley Byrne case [1964] AC 465 to cover a direct claim by the plaintiffs against the defendants, no party will be left without a remedy, by English law at any rate, which is the only system of law we have been asked to consider. There will be the "normal chain of liability," as Lord Pearce called it in Young & Marten Ltd. v. McManus Childs Ltd. [1969] 1 AC 454, 470, in that the Sheikh can sue the plaintiffs on the main building contract, the plaintiffs can sue Feal on the sub-contract and Feal can sue the defendants. Each liability would be determined in the light of such exemptions as applied contractually at that stage. There is thus no warrant for extending the law of negligence to impose direct liability on the defendants in favour of the plaintiffs.” (emphasis added). The imposition of a Duty of Care of Sub-Contractor’s Consultant (Main Contractor) is not only contrary to the “normal chain of liability” (as explained in Simaan General Contracting Co) but will also cause uncertainty in the construction industry. I rely on the following judgment of Susan Glazebrook J (as she then was) in New Zealand’s Court of Appeal case of Rolls-Royce New Zealand Ltd v Carter Holt Harvey Ltd [2005] 1 NZLR 324, at [117], [118] and [123] - “Policy considerations [117] There are a number of policy considerations pointing away from a duty of care being imposed in this case. Some have already been discussed above, including the difficulty, in cases where there are detailed contractual specifications for specialised plant, of setting quality standards that do not relate specifically to those contractual specifications. [118] The main policy factor militating against a duty of care is the need for commercial certainty. Commercial parties are normally entitled to expect that the risk allocation they have negotiated (and paid for) will not be disturbed by the Courts. It is also to be expected that commercial parties are capable of looking after their own interests, including, especially in an industry where insolvency is a major risk, the risk of insolvency of an intermediate party. … … [123] Policy factors also point strongly against there being a duty of care in this case. These are sophisticated commercial parties capable of looking after their own interests. The Courts have no need to interfere in bargains they have freely arrived at.” (emphasis added);