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About Clayarch

The story behind Clayarch began with a vision of two men, Hak Joong Kim and Min Chul Kong, who wanted to bring their vision "Building a Better Guam" to fruition. With over 30 years of combined experience as General Contractors and degrees in Civil and Architectural Engineering, they formed Clayarch, Inc. - the story of the name is derived from Clay, which is soft, allowing it to be molded and designed into a form. When hardened, the form can shape into a strong solid structure. The clay analogy is the commitment of Hak Joong Kim and Min Chul Kong's vision, to build a strong foundation from start to finish while working with and fortifying solid relationships with their clients: commercial, local and federal, to meet all their project needs.  The word, Architectural was shortened to "Arch" to show the meaning of their expertise and knowledge from their degrees in Civil and Architectural Engineering. The company was therefore born as Clayarch.

Dialysis & Clinic Center / Sinajana, Guam

Clayarch, Inc. - Commercial Interior Project


  • 8(a) and HUBZone Certified Small Business.

  • Awarded 8(a) Multiple Award Construction Contract (8(a) MACC)

  • Construction & engineering management for military projects and commercial projects.

  • Quality and safety professional services combined with reliability and integrity in business relationships.

  • Extensive experience with complex and challenging construction and engineering management projects.

  • Proven and reliable contractor relationship with many companies.

  • Completed and carried out many construction projects as subcontractor.


Guam Community College Canopy / Mangilao, Guam

Clayarch, Inc. - Design Build Project

Pertinent Facts

Bank of Guam  / Andersen Air Force Base, Guam

Clayarch, Inc. - Military Renovation Project

  • 8(a) Certification:  #307591 (06/19/2016~06/19/2026)

  • HUBZone Certification:  #55545 (05/19/2016)


  • CAGE Code:  7JSH8

  • NAICS CODE:  236220, 236115, 236116, 236118, 236210, 237110, 238110, 238120, 238140,  238150,  238160, 238190, 238220, 238310, 238320, 238330, 238340, 238350, 238390, 238910, 541990, 561210.

  • Incorporation Certificate:  D-16552

  • Business Established:  June 18, 2010

  • EIN:  66-0748680

  • Contractor's License:  CLB 10-0634

  • Classification:  A,B,C13,C13A,C14,C19,C20,C48,C56

  • Liability Insurance:  $1.0 Mil. Per Project and Aggregate

  • Bonding Capacity:  $7.0 Mil. Single, $15.0 Mil. Aggregate

Dusit Thani Hotel Bridge / Tumon, Guam

Clayarch, Inc. - Hotel Finishing Project


   Hak Joong Kim / President, Co-Owner

   Min Chul Kong / Vice President, Co-Owner

  • Bachelors and Master of Civil & Architectural Engineering.

  • President and Vice President  have worked in the construction industry for more than 30 years as Project Manager and Civil Engineer, providing field scheduling, cost estimating, value engineering, negotiation, and construction administration from start to finish.

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