lock & load we are going mining, page-28

BRETTO,
since you asked...

the person who guaranteed delivery, in this case Sino as they would be backing delivery with their balance sheet. They subcontract to a Constructor, preferably as lump sum EPC, but possibly EPCM as a schedule of rates. The former is capped, the latter cheaper but less certain demanding more care by Sino to protect hits to their balance sheet, but if Cheaper cost reductions go to Dino for managing the risk of delays and increased costs.

CDU sits back. They made their comittment to the terms and conditions when they sign the deal with Sino and Sino agreed the scope of works. Sino agreed to the money from CDU in return for delivery of a plant, and the constructor takes the money from Sino for actually providing arms and legs to build. After commissioning Sino gets its payment stream from CDU.

Thats what normally would happen.