Image credit: QatarEnergy. In a significant advancement of its fleet expansion program, QatarEnergy has formalized an agreement with China State Shipbuilding Corporation (CSSC) to construct six additional QC-Max LNG vessels. This latest contract, signed with CSSC's wholly-owned Hudong-Zhonghua Shipyard, will augment QatarEnergy 's current order book, which now comprises 128 LNG vessels,