Founding of well drilling boring business

December 8, 1967
− Foundation Anniversary

This year, the weather that could be called abnormal weather such as cold waves, floods, droughts in April ~ June, short rainy season, and droughts after August continued from the beginning of the year, and especially in the Hokusatsu region, the Nagashima area, the Akune area, and the Uwaba district of Izumi City fell into a serious water shortage that requested the dispatch of water trucks of the Self-Defense Forces.

Focusing on the possibility of groundwater development by well boring, we are considered the procurement of boring equipment. Decided to introduce Yoshida Iron Works hand-feed type YH-3.

Initially, it was called Izumi Boring Industry. Kizou Omotezako as the captain.

Boring scene at that time (Excavated with Yoshida Iron Works hand feed type YH-3)

January 1, 1969

Representative Tadao Uto founded Minami Nihon Boring.

March 22, 1969

Received Kagoshima Prefectural Construction Industry Governor Registration No.1588.

Entry into geological survey boring

October 1969

Received an order for landslide survey boring. First geological survey.

June 1, 1971

Established Minami Nihon Boring Corporation. (capital: 1 million yen).
Tadayoshi Uto assumed the position of President and CEO. Joined the Kyushu Geological Survey Industry Association.

August 1971

Received an order from Takaono Town for a geological survey for the Euchi Junior High School swimming pool construction project. First order for geological survey from municipalities.

Boring and standard penetration test in Akune City

October 1971

Received an order from Akune City for geological survey of Takanokuchi Port. Received first order for marine boring survey.

Received orders for three groundwater surveys from the Land Improvement Division of the Oshima Branch Office

February 1972

Received three orders from the Land Improvement Division of the Oshima Branch Office for agricultural water resources development survey (Akamine area in Sumiyoshi region in China town, Nishihara area in Wadomari town in Goran region, and Kenbuku area in Isen town in Chubu region)

Scene of electrometering during agricultural water resources survey in Tokunoshima

March 29, 1974

Received Kagoshima Prefectural Governor's Permission 般-48 No. 2075 (general new, well drilling business) amendments to the Construction Industry Law.

August 24, 1977

Increased capital to 10 million yen.

October 5, 1977

Received the governor's permission for general additional civil engineering, earthwork, and pipe work.

November 30, 1977

Received registration with the Minister of Construction 質(52)-172 due to the enforcement of the Geological Survey Contractor Registration Regulations.

January 1, 1978

Participated in the establishment of the Kagoshima Prefectural Geological Survey Association (voluntary organization).

May 30, 1978

Received registration with the Minister of Construction No. (1) 9464 based on the Surveying Law.

Entry into the National Oil Storage Base Construction Project, Establishment of a Cooperative

1984

Geological surveys ordered by the prefecture in conjunction with the Shibushi Oil Storage Base Construction Plan that began in Showa 57 and geological surveys ordered by Shibushi Oil Storage Base Corporation were in full swing.

August 10, 1984

Ten geological survey companies in the prefecture established the Kagoshima Prefectural Geological Survey Industry Cooperative. Governor Approved.

October 28, 1985

Received registration with the Minister of Construction 建 No.60-3777 based on the Construction Consultant Registration Regulations.

Entry into the soil testing business

July 1986

Opened a soil testing room at the Kagoshima branch.

Triaxial compression test in the soil test room in 1987

April 1, 1996

Changed company name to Earth Techno Corporation. Head office relocation registration.

August 21, 1999

Increased capital to 20 million yen.

Registered as a special construction business, Participating in large-scale construction

January 27, 2000

Kagoshima Prefectural Governor (特-11) No. 2075 (specific new: civil engineering, earthwork, pipe work, well drilling, water supply facilities)

March 2003

Received an order from Kagoshima Prefecture for 108,624,000 yen for 14 disaster-related emergency landslide countermeasure work (Nakanoshima district). Received an order for large-scale construction for the first time as a special construction industry.

July 27, 2005

Received the Kagoshima National Highway Construction Office Director's Award for "Kushikino Area Geological Survey".

April 2019

Tadayoshi Uto assumed the position of Chairman and Tadakazu Uto assumed the position of President and CEO.

August 2022

Received an excellent contractor/excellent engineer award (geology category) from the director of the Osumi River and National Highway Office for geological survey work related to the Ushine Sakai disaster prevention project.

July 2023

Received an excellent engineer award (geology category) from the Kagoshima National Highway Office Director for geological survey work related to the Kiire disaster prevention project.

Received the Distinguished Service Award for Disaster Recovery from the Director of the Kyushu Regional Development Bureau (Operations/Geology Category) for geological survey work related to the recovery of National Route 220.