| 1958 |
ポットミキサー、機械工具製造販売 : バッチャープラント第一号機建設（呉造船イバーグ製ミキサー搭載） |
| 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) |
| 1963 |
IHI 社 代理店契約（傾動式ミキサー） |
| 1963 |
SHOWA KOKI CO., LTD established : Agency agreement with IHI CORPORATION (for Drum mixer) |
| 1965 |
宮城くみあい飼料様 コンベヤ納入 |
| 1965 |
Agency agreement with SANKI ENGINEERING CO., LTD : Conveyor delivered to MIYAGI KUMIAI SHIRYO KK |
| 1967 |
|
| 1967 |
Business relationship with ONODA CEMENT CO., LTD and MITSUBISHI MINING & CEMENT CO., LTD started |
| 1971 |
|
| 1971 |
Nakagawa warehouse completed in Nakagawa ward, Nagoya |
| 1973 |
ダム用バッチャープラント建設 : 大平洋機工（株）様 代理店契約（強制練りミキサー搭載） |
| 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 |
揖斐川生コンクリート 工業（株）様 バッチャープラント建設 |
| 1977 |
Okazaki factory extended : Batcher plant constructed for IBIGAWA READY-MIXED CONCRETE KOGYO KK |
| 1982 |
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| 1982 |
Headquarter moved to Atsuta ward, Nagoya |
| 1984 |
小野田セメント（株）様に納入 |
| 1984 |
Mobile silo for cement launched and patent applied : Delivered to ONODA CEMENT CO., LTD |
| 1985 |
バッチャープラント（2軸強制練りミキサー搭載） |
| 1985 |
Agency agreement with NIKKO CO., LTD : Batcher plant constructed for HOKUBU READY-MIXED CONCRETE KK (equipped with Twin shaft forced action mixer) |
| 1986 |
|
| 1986 |
Nakagawa warehouse extended |
| 1990 |
セメント移動式サイロ 特許取得 |
| 1990 |
Nakagawa warehouse newly completed : Mobile silo for cement patented |
| 1998 |
（株）コムリス様 フライアッシュ混合設備建設 |
| 1998 |
Headquarter moved to newly completed building in Atsuta ward, Nagoya : Fly ash mixing facility constructed for KOMURISU KK |
| 2002 |
住友大阪セメント（株）様 セメント輸送設備建設 |
| 2002 |
Chubu Centrair International Airport construction work project : Cement transportation facility constructed for SUMITOMO OSAKA CEMENT CO., LTD |
| 2004 |
（株）神戸製鋼所様 放射性廃棄物固化用プラント共同特許出願 |
| 2004 |
Headquarter moved to Nakagawa ward, Nagoya : Patent application for radioactive waste solidifying plant together with KOBE STEEL, LTD. |
| 2007 |
アンゴラ共和国 移動式サイロ8基出荷 |
| 2007 |
Okazaki factory renewed : Eight units of Mobile silo shipped to Republic of Angola |
| 2009 |
（株）竹中工務店様、（株）ダイワ様 バッチャープラント建設 |
| 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 |
| 2010 |
|
| 2012 |
マルアイ石灰工業（株）様 固化燃料PRF供給設備新設 |
| 2012 |
BCP conducted : Mikawa sales branch opened : RPF supplying facility constructed for MARUAI LIME INDUSTRY CO., LTD |
| 2014 |
（株）吉川工務店様バッチャープラント新設 |
| 2014 |
Nakagawa headquarter building extended, and Okazaki factory extended : Batcher plant constructed for YOSHIKAWA KOUMUTEN KK |
| 2015 |
新知多コンクリート工業（株）様、 : 松岡コンクリート工業（株）様バッチャープラント建設 |
| 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 |
岡崎工場25トンラフタークレーン導入、 : ベトナム技術者採用 東海メッセ・日工（株）合同建機展開催 : （株）不動テトラ様 香港空港拡張工事向け台船用セメント設備建設 |
| 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 |
試験用セメントローリー車購入（株）中島工務店様 ミキサー入替工事 |
| 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 |
（自動車産業への展開） : 豊川工場新築、関東支店設立 |
| 2019 |
|
| 2019 |
Toyokawa factory completed, Kanto branch office established : Cement supplying facility for Patimban new port project |
| 2020 |
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| 2021 |
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| 2022 |
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| 2023 |
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