Shipbuilder says reports about unsafe conditions during sea trails inaccurate

Narwhal undergoes additional tests in Kaohsiung ahead of delivery deadline

Defense minister to present report at legislative session open to media

Wellington Koo says meeting November deadline ‘very challenging’

Manufacturer says vessel must meet safety standards before next step

Budget conditional on Narwal meeting safety standards and beginning of testing

Lai appears to give green light to mass production of submarines

Features such as incept sonar, flank sonar array become visible

Navy says Narwhal sub will undergo rigorous testing before entering service