Nov. 2011. Registered by by TAKREER as a vendor.
Nov. 2011. Registered by ADGAS as a vendor.
Jan. 2012. Registered by BOROUGE as a vendor.
May. 2013. Approved by ARAMCO as vendor for finned tube
Jul. 2018. Changed company name to DRTC(DaeRyung Technology Corp.)
Dec. 2018. Signed a contact to supply pressure vessel parts with Sebo Global.
