Japan Concrete Industry Co., Ltd.

Our company was founded in 1948 (Showa 23) and celebrated its 77th year this year.

Our company was founded in 1948 (Showa 23) and celebrated its 77th year this year. During this time, we have consistently provided high-quality concrete products for social infrastructure development.

Separated from Kashiwa Electric Industry Co., Ltd. (now Nippon Densetsu Industry Co., Ltd.) in Shimodate City, Ibaraki Prefecture (now Chikusei City), and established with capital of 1 million yen mainly for manufacturing and sales of underground buried cable protection concrete trough. Head office in Shibuya-ku, Tokyo.

Japan Electric Industry Co., Ltd., located in Shimodate City, Ibaraki Prefecture (now Chikusei City): separated from Kawashima Factory of Japan Electric Industry Co., Ltd. (now Nippon Densetsu Industry Co., Ltd.) and established with capital of 1 million yen mainly for manufacturing and sales of underground buried cable protection concrete troughs. Head office in Oowada Town, Shibuya-ku, Tokyo

Capital increase (3 million yen)

Invention of 'NC-style' steel wire concrete pole

Capital increase (10 million yen), construction of Kawashima Factory in Chikusei City, Ibaraki Prefecture, and relocation of head office to Ginza East, Chuo-ku, Tokyo

Capital increase (10 million yen): construction of Kawashima Factory in Chikusei City, Ibaraki Prefecture; relocation of head office to Ginza Higashi, Chuo-ku, Tokyo

Capital increase (20 million yen)

Capital increase (50 million yen)

Capital increase (80 million yen), construction of Suzuka Factory in Mie Prefecture

Capital increase (80 million yen): construction of Suzuka Factory in Mie Prefecture

Capital increase (160 million yen)

Registered as a construction business with Tokyo Metropolitan Governor Registration Number (He) No. 20642

Established a laboratory on the Kawashima factory premises

Established Osaka Sales Office (currently Osaka Branch)

Capital increase (320 million yen)

Listed on the Second Section of the Tokyo Stock Exchange

Registered as a construction business with registration number (Chi) No. 4827 (currently, Ministry of Land, Infrastructure, Transport and Tourism permit (Special-7) No. 4096)

Registered as a construction business with registration number (Ch) No. 4827 (currently licensed by the Minister of Land, Infrastructure, Transport and Tourism with permit (Toku-7) No. 4096)

Capital increase (640 million yen)

Established Nagoya Sales Office (currently Nagoya Branch)

Relocated head office to Shinbashi, Minato-ku, Tokyo

Capital increase (1,280 million yen)

Listed on the First Section of the Tokyo Stock Exchange

Developed NC wall pile (currently PC wall)

Developed ultra-high strength ONA pile with improvements to conventional PC piles

Provided manufacturing technology of pole and pile to Centricom Inc., USA

Capital increase (1,600 million yen)

Capital increase (2,000 million yen)

Constructed Kawashima No. 5 Factory

Capital increase (2,200 million yen)

Received construction minister certification for NAKS method's allowable support capacity

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the allowable bearing capacity of NAKS method (Construction Ministry East Residence Notice No. 50)

Provided pole and pile manufacturing technology to P.T. Hume Sakti Indonesia Co., Ltd., Indonesia

Provided manufacturing technology of Paul Pile to PT Hume Sakti Indonesia in Indonesia

Received evaluation from the Ministry of Construction regarding the construction performance of HYSINC hammer

Received evaluation from the Ministry of Construction regarding the construction performance of HYSINC Hammer: (Construction Technology Evaluation No. 83105)

Approval from the Minister of Construction for the Load-bearing Capacity of RODEX Method

Received approval from the Minister of Construction for the allowable bearing capacity of the RODEX method: (Ministry of Construction East Residence Instruction No. 18)

Established with capital participation from Malaysia Zen Concrete Industry Co., Ltd., and transferred manufacturing technology of poles

Established Zen Concrete Industry Co., Ltd. in Malaysia with our capital participation, providing manufacturing technology of Paul

Constructed a multi-purpose prefabricated product manufacturing plant in Shimodate City, Ibaraki Prefecture (now Chikusei City)

Kawashima Factory awarded the Minister of Economy, Trade and Industry Award as an Excellent Factory for Industrial Standardization and Quality Control

Kawashima Factory awarded the Minister of Economy, Trade and Industry Prize as a 'Excellent Factory for Industrial Standardization and Quality Control Implementation'

Established with capital participation from Sehan Concrete Industry Co., Ltd. in Korea, and transferred manufacturing technology of NCS-PC piles and ONA piles

Established Sehan Concrete Industry Co., Ltd. in South Korea with our capital participation, providing manufacturing technology of NCS-PC Pile and ONA Pile

Established with capital participation from Thai-Japan Concrete Industry Co., Ltd. in Thailand, and transferred manufacturing technology of piles

Established Thai-Japan Concrete Industry Co., Ltd. in Thailand with our capital participation, providing pile manufacturing technology

Suzuka Factory awarded the Minister of Economy, Trade and Industry Award as an Excellent Factory for Industrial Standardization and Quality Control

Suzuka Factory awarded the Minister of Economy, Trade and Industry Prize as a 'Excellent Factory for Industrial Standardization and Quality Control Implementation'

Capital increase (2,658 million yen)

Relocated head office to Minato Ward, Tokyo

Received approval from the Minister of Construction for the allowable bearing capacity of EX-ONA piles

Received approval from the Minister of Construction for handling allowable bearing capacity of EX-ONA Pile: (Construction Ministry East Residence Instruction No. 29)

Design, development, and manufacturing of poles, piles, and underground precast products registered under ISO9001

Designated Takasago Factory of West Japan Pile Manufacturing Co., Ltd. and Naoho Factory of Kyushu Pile Manufacturing Co., Ltd. as our exclusive factories

Designated Takasago Factory of Nishinihon Pile Manufacturing Co., Ltd. and Nyuho Factory of Kyushu Pile Manufacturing Co., Ltd. as our exclusive factories

Added Shiga Factory of West Japan Pile Manufacturing Co., Ltd. as our exclusive factory

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the bearing capacity of HF (H.F) method

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the HF (H.F) method's allowable bearing capacity: (TACP-0013, 0014)

Established logistics company NC Logistics Co., Ltd.

Established logistics company NC Logistics Co., Ltd. to improve product transportation efficiency

Received approval from the Minister of Construction for the bearing capacity of HBM (H·B·M) method

Received approval from the Minister of Construction for the allowable bearing capacity of HBM (H・B・M) method: (National Residence Instruction No. 7732, 7733)

Opened Shikoku Branch and added Komatsu Factory of West Japan Pile Manufacturing Co., Ltd. as our exclusive factory

Opened Shikoku Branch and added Komatsu Factory of Nishinihon Pile Manufacturing Co., Ltd. as our exclusive factory

Opened Fukuoka Branch and made Sanei Construction Co., Ltd. (now NC Segment Co., Ltd.) a subsidiary to strengthen the concrete segment business

Opened Fukuoka Branch and made Sanei Construction Co., Ltd. (now NC Segment Co., Ltd.) a subsidiary to strengthen the concrete segment business

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the bearing capacity of Hyper-NAKS method

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the allowable bearing capacity of Hyper-NAKS method: (TACP-0161, 0162)

Designated Kaibara Pile Manufacturing Co., Ltd. Waki Factory and Kasaoka Factory as our exclusive factories

Split off Nishinippon Pile Manufacturing Co., Ltd. Komatsu Factory as NC Shikoku Concrete Industry Co., Ltd.

Capital increase (3,658 million yen)

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the Hyper-MEGA construction method's bearing capacity

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the allowable bearing capacity of Hyper-Mega method: (TACP-0211)

Established NC Kanto Pile Manufacturing Co., Ltd.

Constructed a dedicated factory for large-diameter high-support capacity piles at Koga Factory

Made NC Kaibara Concrete Co., Ltd., a sales agency, a subsidiary and built a paid elderly home on the site of Kamakura company housing

Opened Hiroshima Sales Office (currently Hiroshima Branch)

Implemented a company name change to include 'NC' for each group company

Split Kawashima Factory into NC East Japan Concrete Industry Co., Ltd. and Suzuka Factory into NC Central Japan Concrete Industry Co., Ltd.

Made NC Precon Co., Ltd., a prefabricated product manufacturing company, a subsidiary

Established Japan Eco Technologies Co., Ltd., a recycling business company

Built a face plate fitting factory for high-support capacity piles inside Koga Factory

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the Hyper-NAKSII construction method's bearing capacity

Changed the company name from NC Sanei Construction Co., Ltd. to NC Segment Co., Ltd.

Promoted business alliance with China, Kenka Pile Co., Ltd.

Concluded a business alliance with Takei Industrial Co., Ltd.

Fully acquired NC Kanto Pile Manufacturing Co., Ltd.

Concluded a business alliance with Beton6 Co., Ltd. in Vietnam

Received approval from the Minister of Land, Infrastructure, Transport and Tourism for the Hyper-STRAIGHT construction method's bearing capacity

Transferred the soundproof building material Poresel business from Japan Pile Co., Ltd.

Complete acquisition of NC Chubu Pile Manufacturing Co., Ltd. (formerly Kinki Nippon Concrete Industry Co., Ltd.)

Business alliance with MA GA Manufacturing Co., Ltd. in Myanmar

Business alliance with PT WIJAYA KARYA BETON Tbk. in Indonesia

Revision of management philosophy

Relocation of head office to Shibaura, Minato-ku, Tokyo

Developed ultra-high strength composite concrete pile "Estas 105 Pile" and received evaluation from the Japan Building Center (BCJ Evaluation-FD0448, 449).

Development of ultra-high strength composite concrete pile "Estus 105 Pile" and received evaluation from the Japan Building Center (JBC)

Capital increase (5,111 million yen)

Hyper-straight method receives approval from the Minister of Land, Infrastructure, Transport and Tourism regarding allowable bearing capacity on clayey ground (TACP-0453).

Hyper-Stretch Construction Method approved by the Minister of Land, Infrastructure, Transport and Tourism for allowable bearing capacity on clayey ground

Joint venture with Myanmar, MA GA Manufacturing Co., Ltd.: Establishment of "NC & MaGa Co., Ltd." (now NIPPON CONCRETE (Myanmar) Co., Ltd.)

Establishment of joint venture "NC & MaGa Co., Ltd." with MA GA Manufacturing Co., Ltd. in Myanmar

Established NC Kyushu Co., Ltd. as a consolidated subsidiary.

Constructed a factory for manufacturing large-diameter RC segments.

Design, development, sales, and construction of concrete poles, piles, blocks, etc., registered for ISO 14001 (head office only).

Design, development, sales, and construction of concrete poles, piles, blocks, etc., registered under ISO 14001

Established a joint venture "GENERAL NIPPON CONCRETE INDUSTRIES LIMITED" with Thailand's GENERAL ENGINEERING PUBLIC COMPANY LIMITED.

Acquired shares of Free Industry Co., Ltd. and made it a consolidated subsidiary.

Additional acquisition of shares of Hokkaido Concrete Industry Co., Ltd., an equity-method affiliate, making it a consolidated subsidiary.

Additional acquisition of shares of Hokkaido Concrete Industry Co., Ltd., making it a consolidated subsidiary

Changed the trade name from NC & MaGa Co., Ltd. to NIPPON CONCRETE (Myanmar) Co., Ltd.

Changed trade name from NC Kyushu Pile Manufacturing Co., Ltd. to NC Steel Co., Ltd.

Received GSC Award for concrete sludge recycling technology

Constructed Mie Suzuka Factory for large-diameter RC segments

Constructed Ibaraki Factory for pile steel processing

Entered business and capital alliance with Tenox Co., Ltd.

Acquired additional shares of Tohoku Pole Co., Ltd. and made it a consolidated subsidiary

Developed joint connection method with column cap on pole (COP) and received evaluation from Japan Building Center (BCJ Evaluation-RC0540)

Development of Kango method joint cap-on-pole (COP), received evaluation from the Japan Building Center (JBC)

Transitioned from First Section of the Tokyo Stock Exchange to the Prime Market due to market reorganization

Received approval for Hyper-Stretch NT construction method from Minister of Land, Infrastructure, Transport and Tourism (TACP-0675, 0676)

Approval by the Minister of Land, Infrastructure, Transport and Tourism for the allowable bearing capacity of Hyper-Stretch NT (Hyper-Stretch N T) construction method

Transferred formwork manufacturing business from Komatsu Co., Ltd. (formerly Komatsu Ltd.) and established Komatsu Ltd.

Acquisition of formwork manufacturing business from Komatsu Ltd. (formerly Komatsu Ltd.), establishing Komatsu Ltd.

Constructed a paid elderly home on the site of the Dawn Dormitory

June 2025: Hiroshi Tsukamoto, President and CEO of Japan Concrete Industry Co., Ltd.

Signing of technical support agreement for pole manufacturing with Dongshin Pile Co., Ltd. in Korea