2003 - 2016

• Oct. 2003

  Established korea Construction Appraisal Institute Research

• Nov. 2012

  M & A of Korea Construction Appraisal Institute Research

• Nov. 2012

  Company name changed to CREST E&C Co., Ltd

• Mar. 2013

  Establishment of Company Research & Development Center

• Nov. 2014

  Certified ISO 9001 From URS(United Register or Systems)
  Certified ISO 14001 From URS(United Register or Systems)

• Nov. 2015

  Certified as Venture Company

• Dec. 2015

  Registered as Engineering Activities

• Dec. 2012

  Registered as International Contractor

• May. 2016

  Company name changed to ZENTECH E&C Co., Ltd.

• Jan. 2021

  Registered as Disabled Company(No. 0011-2021-01374)