YIRAN Mission: YIRAN, makes the Sky bluer.
YIRAN Vision: hundred years of YIRAN Sky bluer.
The Spirit of YIRAN: honesty, practical work, Learning and Innovation.
YIRAN style: develop hand in hand, create brilliance together.
The employees' self-discipline criteria are "Nine to Nine, Nine to Nine":
To strive, not to slack, to innovate, not to be conservative, not to cooperate, not to prevaricate.
Be passionate, not cold, honest, false, confident, and conceited.
Be thrifty, do not waste, work honestly, do not be lazy, be faithful, do not betray the law