brainwave phase 2, page-39

Jan,
Lynas initially engaged Ranhill WorleyParson as the Engineering Procurement and construction management contractor (EPCM). Ranhill WorlyParsons were tasked with the basic engineering design (BED) and the detailed engineering design (DED) of the LAMP, ordering of plant and equipment and management of all sub contractors during construction.
During 2009 project suspension, Lynas changed from Ranhill WorleyParsons to UGL as the EPCM. UGL completed the BED and DED.

Basically, Ranhill WorleyParons and subsequently UGL was hired by Lynas to design, build and deliver the LAMP on time and on budget.
Obviously the on time, on budget part did not happen and now there are also possible design issues. Without knowing the exact details of these issue, it is impossible to know who is at fault.

From the 2009 Q4 report:
"As a result of reviewing our contracting strategy during the quarter, Lynas has engaged United Group Limited’s Resources division (UGL) to complete the engineering, procurement and construction management through to the pre-commissioning stage for the Advanced Materials Plant. This engagement is via an Alliance Contract structure where the compensation arrangements embrace risk sharing through “gain–share” / “pain-share” arrangements based on performance criteria around forecast costs and completion dates."