State-run Bases Conversion and Development Authority said two joint venture companies – First Balfour Inc. – Datem and Megawide Group Co. Ltd.; three Chinese contractors – China Harbour Engineering Co. Ltd., China State Construction Engineering Corp. and Qingjian Group Co. Ltd.; and two local construction firms with international engagements―R-II Builders Inc. and Tokwing Construction Corp. – bought bid documents with the intention to participate in the official bidding eon Oct. 23, 2017. The companies, however, expressed concern over the delays in the issuance of the environmental clearance certificate for the project