-Materials and equipment open box inspection for 4 drilling vessel;-Spare parts and OFE management( Logistics tracing, taking delivery, open box, inspection,filing, protection, maintenance) ;-Warehouse on board design and management.

-Piping technician for 2 semi rig's burner boom pipe installation and MC inspection;-Commissioning engineer for 2 semi rig, devote myself to instrument air, general air, starting air system, fuel and lube oil feed and transfer system, boiler system commissioning, and joined a semi rig sea trial for 23 days;-Asst. project manager for a jack up rig, responsible for drawing up schedule, distributing budget, tracing construction progress, QHSE management, until taking delivery(delivery term only 19 moths). And, Taking charge of modification of a 300 feet jack up rig, and delivery it to COSL in advance.