I agreed that the defendant should have informed the plaintiff earlier that the defendant had not designed the RDU from scratch, but had instead relied on an earlier Punj Lloyd design from which it made modifications. But the mere fact that the RDU design was modified from the Punj Lloyd design was not of consequence to my findings. As stated at [194] of the Judgment, no inference of fraud should be drawn from the fact alone that the RDU design was modified, because design is an iterative process. The real question was whether the necessary design calculations were done to ensure the suitability of the final design of the RDU for the functions it was meant to perform. I refer also to [193] and [199] of the Judgment, where I accepted the plaintiff’s submission that the defendant had failed to adduce evidence of any initial design calculations necessary to ensure that following the modifications to the Punj Lloyd design, the plaintiff’s RDU design would be able to meet its specifications and perform up to expectations in terms of merchantable quality and fitness for purpose. I was also assisted by the evidence of Mr Lei Chengyi (“Mr Lei”), the defendant’s former design engineer, that the junior design engineer (Ms Tan Sin Liu (“Ms Tan”)) made only negligible changes to the Punj Lloyd design. In the circumstances, the defendant’s late disclosure regarding the relevance of the Punj Lloyd design ultimately did not prevent the issue from receiving sufficient ventilation through the evidence of Dr Yang, Mr Lei and Ms Tan, who were all witnesses called by the defendant.