It also expects the line to start commercial operation in August 2016.
The construction of Blue Line Extension from Sanam Chai to Tha Phra is now 60 per cent complete, with construction of the first underground tunnel crossing Chao Phraya River now finished and the second tunnel excavation started and scheduled to be completed in 2016.
The first train manufactured by J-TREC (Japan Transport Engineering Co) will be delivered to Thailand in the end of 2015 for installation and test run, it said.
Meanwhile, the Green Line (Bearing –Samut Prakan) is now 50 per cent complete, Ch Karnchang said.