In September 2020, KLD passed the renewal audit of "Grade A Production License of Special Equipment P.R.C" .

KLD obtained the“Grade A Production License of Special Equipment P.R.C" in 2008 as first time. Until now, KLD has suscessfully experienced many time of license renewal audit. The company who has this license has the permission from  State Administration for Market Rgulation to manufacture steam boilers and hot water boilers of various pressures.