History
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| 1958 | TSUJI TEKKO FIRM inaugurated in Nakagawa ward, Nagoya Manufacturing and sales of mini concrete mixer and mechanical tools Our first batcher plant constructed (equipped with mixer made by Kure Shipbuilding Ibag) |
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| 1963 | SHOWA KOKI CO., LTD established Agency agreement with IHI CORPORATION (for Drum mixer) |
| 1965 | Agency agreement with SANKI ENGINEERING CO., LTD Conveyor delivered to MIYAGI KUMIAI SHIRYO KK |
| 1967 | Business relationship with ONODA CEMENT CO., LTD and MITSUBISHI MINING & CEMENT CO., LTD started |
| 1971 | Nakagawa warehouse completed in Nakagawa ward, Nagoya |
| 1973 | Okazaki factory completed in Toyokawa city, Aichi Batcher plant for dam constructed Agency agreement with PACIFIC MACHINERY & ENGINEERING CO., LTD (for Forced action mixer) |
| 1977 | Okazaki factory extended Batcher plant constructed for IBIGAWA READY-MIXED CONCRETE KOGYO KK |
| 1982 | Headquarter moved to Atsuta ward, Nagoya |
| 1984 |  Mobile silo for cement launched and patent appliedDelivered to ONODA CEMENT CO., LTD |
| 1985 | Agency agreement with NIKKO CO., LTD Batcher plant constructed for HOKUBU READY-MIXED CONCRETE KK (equipped with Twin shaft forced action mixer) |
| 1986 | Nakagawa warehouse extended |
| 1990 | Nakagawa warehouse newly completed Mobile silo for cement patented |
| 1998 |  Headquarter moved to newly completed building in Atsuta ward, Nagoya Fly ash mixing facility constructed for KOMURISU KK |
| 2002 | Chubu Centrair International Airport construction work project Cement transportation facility constructed for SUMITOMO OSAKA CEMENT CO., LTD |
| 2004 | Headquarter moved to Nakagawa ward, Nagoya Patent application for radioactive waste solidifying plant together with KOBE STEEL, LTD. |
| 2007 | Okazaki factory renewed Eight units of Mobile silo shipped to Republic of Angola |
| 2009 | Kotaro Tsuji became president and chief executive director Batcher plant constructed for TAKENAKA CORPORATION and DAIWA CORPORATION. Fly ash facility remodeled for KAWABE BIOMASS POWER GENERATION KK |
| 2012 | BCP conducted Mikawa sales branch opened RPF supplying facility constructed for MARUAI LIME INDUSTRY CO., LTD |
| 2014 | Nakagawa headquarter building extended, and Okazaki factory extended Batcher plant constructed for YOSHIKAWA KOUMUTEN KK |
| 2015 | Kanto branch works opened in Misato city, Saitama Batcher plant constructed for SHIN CHITA CONCRETE KOGYO KK, and MATSUOKA CONCRETE INDUSTRY CO., LTD |
| 2016 | Nakagawa No.2 warehouse opened 25 ton rough terrain crane introduced to Okazaki factory  Vietnamese engineers hired
Tokai Messe, exposition of construction machinery, held together with NIKKO CO., LTD Cement facility for barge used for Hong Kong International Airport expansion work constructed for FUDO TETRA CORPORATION |
| 2017 | Ceremony for 55th anniversary since foundation held Cement tanker truck for test purchased Mixer replacement work for NAKASHIMA KOUMUTEN KK |
| 2018 |  Horizontal silo for calcium carbonate delivered to Commonwealth of Kentucky (Business development to Automobile industry) |
| 2019 | Toyokawa factory completed, Kanto branch office established Cement supplying facility for Patimban new port project |
