Asao Foamcrete Corporation

1961: Establishment of Asao Foamcrete Corporation. Started manufacturing and on-site construction of building aerated concrete.

Founded. Started with application of Aerated lightweight concrete as thermal insulation material.

Start of manufacturing and on-site construction of aerated concrete for building use.

1963: During the construction of Tokaido Shinkansen, our manufactured aerated concrete was adopted for the first time as a civil engineering material in the grout work of the Murozumi Tunnel (cavity filling work), and construction of the cavity filling work began.

Our Aerated lightweight concrete is adopted as a civil engineering material for the first time in Mochimune tunnel grouting work (cavity filling) in construction of the Tokaido Shinkansen (known as a bullet train), and the construction of cavity filling is started.

Our manufactured aerated concrete was adopted as a civil engineering material for the Toyomura Tunnel grout work (cavity filling work) in the construction of the Tokaido Shinkansen, and the cavity filling work has begun.

Our Aerated lightweight concrete is adopted as a civil engineering material for the first time in Mochimune tunnel grouting work (cavity filling) in construction of the Tokaido Shinkansen (known as a bullet train), and the construction of cavity filling is started.

1972: Began pipe filling work in the Kanagawa Prefecture wide water supply project with a conduit diameter of 2,800mm.

Starts a construction of conduit filling in conduit tube filling (diam. 2,800mm) of wide area water system in Kanagawa prefecture.

Start of pipe filling work for 2,800mm diameter water conduit in Kanagawa Prefecture.

Starts a construction of conduit filling in conduit tube filling (diam. 2,800mm) of wide area water system in Kanagawa prefecture.

1987: Started ground improvement work (Ascolam method) at Misawa Housing Complex, Kyushu Branch, Urban Housing Corporation.

Starts a ground improvement work (Ascolumn Method) in Misawa housing construction site managed by Kyushu Branch of Public Housing Corporation.

Start of ground improvement work (Ascolam method) at Misawa Housing Complex, Kyushu Branch of Sumitomo Housing & Development Corporation.

Starts a ground improvement work (Ascolumn Method) in Misawa housing construction site managed by Kyushu Branch of Public Housing Corporation.

1988: Began lightweight embankment work for the Yokohama Shindo and Akawa River Bridge replacement project.

Starts a Aerated lightweight banking method in bridge renovation works at Akuwa River in Yokohama.

Start of lightweight embankment work for Yokohama Shindo and Akawa River Bridge replacement project.

Starts a Aerated lightweight banking method in bridge renovation works at Akuwa River in Yokohama.

2000: Obtained certification from the International Organization for Standardization (ISO9001).

Obtains accreditation of International Organization for Standardization (ISO9001).

Acquisition of ISO9001 certification.

Obtains accreditation of International Organization for Standardization (ISO9001).

2001: Registered shares on the over-the-counter market of the Japan Securities Dealers Association.

Registers as an over-the-counter company in Japan Securities Dealers Association.

Registration of shares with Japan Securities Dealers Association.

Registers as an over-the-counter company in Japan Securities Dealers Association.

2002: Began soil purification work for contaminated soil with heavy metals using the L&R Geofine method.

Starts purification operation of polluted soil by heavy metal (L&R Geo-Fine Method).

Start of contaminated soil remediation work using heavy metals (L&R Geofine method).

Starts purification operation of polluted soil by heavy metal (L&R Geo-Fine Method).

2004: Established a joint venture in China (Guangdong Gansheng Civil Engineering New Technology Co., Ltd. (now Guangdong Gansheng Civil Engineering Technology Co., Ltd.)). Listed shares on Jasdaq Securities Exchange.

Establishes a joint venture company (Guangdong Guansheng Civil Engineering & New Technology Co., Ltd.) in China.

Lists its stock on JASDAQ market.

Establishment of joint venture company in China (Guangdong Gansheng Civil Engineering New Technology Co., Ltd. (currently Guangdong Gansheng Civil Engineering Construction Technology Co., Ltd.)).

Listing of shares on JASDAQ Securities Exchange.

Establishes a joint venture company (Guangdong Guansheng Civil Engineering & New Technology Co., Ltd.) in China. : Lists its stock on JASDAQ market.

2005: Acquired patent for 'Soil Treatment Method and Device'.

Patent acquired for “Soil Treatment Method and Apparatus.”

2006: Acquired patent for 'Formation of Aerated Mixed Lightweight Soil and Its Construction Equipment'. Obtained technical performance certification for 'Ascolam Type II - Slurry-based Mechanical Stirring Deep Layer Mixing Method' from the Japan Building Research Institute.

Patent approved for "Equipment of forming and constructing Aerated light-weight concrete".

Certificate of Construction Technique and Performance was given by General Building Research Corporation of Japan for "Ascolumn Type II : the slurry-type deep mixing method with mechanical agitation".

Patent acquired for “Bubble Mixed Lightweight Soil Formation and Construction Equipment.”

Obtained architectural technical performance certification for “Ascolam Type II - Slurry-based Mechanical Stirring Deep Layer Mixing Treatment Method -” from Japan Building Research Institute (a public interest incorporated foundation).

Patent approved for "Equipment of forming and constructing Aerated light-weight concrete". : Certificate of Construction Technique and Performance was given by General Building Research Corporation of Japan for "Ascolumn Type II : the slurry-type deep mixing method with mechanical agitation".

2007: Acquired patent for 'Powder and Granular Material Input Device and Method'. Acquired patent for 'Residual Formwork'.

Patent approved for "Equipment and method of injecting powder material into the ground".

Patent approved for "Polypropylene mold system".

Patent acquired for “Powder and Granular Material Injection Device and Method.”

Patent acquired for “Residual Formwork.”

Patent approved for "Equipment and method of injecting powder material into the ground". : Patent approved for "Polypropylene mold system".

2008: Established a study group with seven private companies to promote the dissemination of the Ascolam Type II method.

Ascolumn II Research Meeting started with seven members of private companies in order to spread the Ascolumn Type II Method.

Research group established with seven private companies to promote Ascolam Type II method.

Ascolumn II Research Meeting started with seven members of private companies in order to spread the Ascolumn Type II Method.

2010: Listed on Osaka Securities Exchange (JASDAQ Market) following the merger of Jasdaq Securities Exchange and Osaka Securities Exchange.

The company's stock listed on Osaka Securities Exchange (JASDAQ) along with the merger of JASDAQ Securities exchange and Osaka Securities Exchange.

Listed on Osaka Securities Exchange (JASDAQ Market) following merger with JASDAQ Securities Exchange.

The company's stock listed on Osaka Securities Exchange (JASDAQ) along with the merger of JASDAQ Securities exchange and Osaka Securities Exchange.

2011: Listed on Osaka Securities Exchange JASDAQ (Standard) following the integration of the Hercules Market, JASDAQ Market, and NEO Market.

Along with the integration of Nippon New Market Hercules, the JASDAQ market and the NEO market of Osaka Securities Exchange, our company went public on the JASDAQ (Standard) of Osaka Securities Exchange.

Listed on Osaka Securities Exchange JASDAQ (Standard) following integration of Osaka Securities Exchange Hercules Market, JASDAQ Market, and NEO Market.

Along with the integration of Nippon New Market Hercules, the JASDAQ market and the NEO market of Osaka Securities Exchange, our company went public on the JASDAQ (Standard) of Osaka Securities Exchange.

2013: Listed on Tokyo Stock Exchange JASDAQ (Standard) following the integration of the physical markets of Osaka Securities Exchange and Tokyo Stock Exchange.

Along with the integration of cash markets of Osaka Securities Exchange and Tokyo Stock Exchange, our company went public on the JASDAQ (Standard) of Tokyo Stock Exchange.

Integration of the spot markets of Osaka Securities Exchange and Tokyo Stock Exchange, listing on Tokyo Stock Exchange JASDAQ (Standard).

Along with the integration of cash markets of Osaka Securities Exchange and Tokyo Stock Exchange, our company went public on the JASDAQ (Standard) of Tokyo Stock Exchange.

2017: Registered the NLG method using non-air type grout material with NETIS (Registration Number: KT-160140-A)

Registration of NLG method using non-air type grout material in NETIS (Registration No.: KT-160140-A).

2019: Patent acquired for 'Mixing Unit and Grouting Method' used in NLG construction method.

Patent acquisition for 'Mixing unit and grout filling method' used in NLG method.

2021: Patent acquired for 'Foaming Agent for Bubbly Mortar and Manufacturing Method of Bubbly Mortar'.

Patent granted for "Foaming agent for foamed mortar and process for producing foamed mortar”

Patent acquisition for 'Foaming agent for bubble mortar and manufacturing method of bubble mortar'.

Patent granted for "Foaming agent for foamed mortar and process for producing foamed mortar"

2022: Patent acquired for 'Electrical Anti-corrosion Device and Method for Piping'; Patent for 'Wall Structure of Embankment'; Patent for 'Pre-mixed Material for Air Mortar, Air Mortar, Manufacturing Method of Air Mortar, and Equipment for Manufacturing Air Mortar'; Transition from JASDAQ (Standard) to Standard Market following review of market classification by Tokyo Stock Exchange.

Patent granted for "Electrolytic corrosion prevention device and method for electrolytic corrosion prevention of piping”

Patent granted for “Wall structure of embarkment”

Patent granted for "Premix for aerated mortar, aerated mortar, process for producing aerated mortar, apparatus for producing aerated mortar”

Moved from JASDAQ (Standard) to the Standard Market due to the revision of the market classification of the Tokyo Stock Exchange.

Patent acquisition for 'Electrical anticorrosion device and method for pipes'.

Patent acquisition for 'Embankment wall structure'.

Patent acquisition for 'Pre-mixed material for aerated mortar, aerated mortar, manufacturing method of aerated mortar, and manufacturing apparatus of aerated mortar'.

Transition from JASDAQ (Standard) to Standard Market due to review of Tokyo Stock Exchange market classification.

Patent granted for "Electrolytic corrosion prevention device and method for electrolytic corrosion prevention of piping". : Patent granted for "Wall structure of embarkment". : Patent granted for "Premix for aerated mortar, aerated mortar, process for producing aerated mortar, apparatus for producing aerated mortar". : Moved from JASDAQ (Standard) to the Standard Market due to the revision of the market classification of the Tokyo Stock Exchange.

2024: Patent acquired for 'Precast Bubbly Mixed Lightweight Soil'.

2024: Transfer of all shares of Guangdong Guansheng Civil Engineering & New Technology Co., Ltd. to local subsidiary, dissolving the joint venture.

Patent granted for “Precast Aerated Light-weight Soil”

Patent acquisition for 'Precast bubble mixed lightweight soil'.

Transfer of all shares of Guangdong Gansheng Civil Engineering Technology Co., Ltd. to a local subsidiary and dissolution of joint venture agreement.

Patent granted for "Precast Aerated Light-weight Soil"

2025: Delisting.