DAIJIN group

We operate the only industrial waste intermediate treatment facility in Aso County capable of processing wood waste and rubble.

Hiwa Giken is the only industrial waste intermediate treatment facility in Aso County capable of processing wood waste and rubble (including asphalt and concrete debris). We focus on environmentally friendly recycling processes and also sell crushed stone, wood chips, and firewood. Feel free to call us for dump truck delivery!

Management Philosophy

々を大事にします
Cherish each day
の気持ちで接します
Interact with a spirit of harmony
術の向上に努めます
Strive for technological advancement
設的な発言・行動をします
Engage in constructive communication and action

Company

Company Name

Hiwa Giken Co., Ltd.

Address

〒869-2401
4247-1 Akababa, Minamioguni-machi, Aso-gun, Kumamoto
TEL 0967-42-0363
FAX 0967-42-0735

Business Activities

・Construction Recycling Business
・Intermediate Treatment Facility
・Industrial Waste Disposal Business
・General Waste Treatment Business

Capital

20 Million JPY

Qualifications

・First Permit
 Kumamoto Prefecture Governor's Permit (General-18) No. 13126
・International Environmental ISO 14001 Certification Acquired

Categorization

・Concrete / Asphalt
・Wood Waste (Scrap Wood)
・Wood Waste (Tree Roots)

Processing Methods

・Fixed Crushing [308 t/day (8H)]
・RC Aggregate [1,584 t/day (8H)]
・Crushing and Sorting [208 t/day (8H)]

Recycled Products

・Sawdust
・Surface Protection Material, Mulching Material

Recycled Products

History

September 1993

Hiwa Giken Co., Ltd. established (in Toroku, Kumamoto City)
Capital : 10 Million JPY
President : Akira Tawara

October 1993

Obtained Construction Business License from Kumamoto Prefectural Governor (No. 13126)

November 1997

Obtained Industrial Waste Disposal Business License (for incineration, crushing, and sorting)

February 2002

Headquarters relocated to Akababa, Minamioguni-machi

August 2004

Obtained Mobile Waste Treatment License for Oita Prefecture

July 2005

Obtained General Waste Treatment Business License

April 2007

Introduced Human Resources Training (NBC)

January 2010

Obtained Mobile Waste Treatment License for Miyazaki Prefecture

August 2010

Obtained General Freight Transport Business License

August 2011

Capital increased to 20 Million JPY

November 2011

Started crushed stone business (Yamanaka Sangyo)

Business Overview

Crushed stone sales

We offer recycled crusher run, crusher run, mountain soil/excavated earth, crushed rock, and more.
We also provide delivery services with 2-ton and 10-ton dump trucks.

Demolition Work & Material Acceptance

Wood stove sales