Founded as SUMIEITO KOSAN in Himeji.
Employees on a company trip in the 1980s.
Starts offering solid waste as alternative materials for natural resources.
Starts recycling metal-containing solid waste into usable resources.
SUMIEITO KOSAN changes its company name to SUMIEITO Co., Ltd.
Opens a sales office in Tokyo.
Opens a sales office in Nagoya.
Jointly establishes NIKKA SUMIEITO with Hitachi Chemical.
Acquires a patent for SlurMix®, a technology for recycling industrial waste into alternative fuel.
Launches an FSC® certification service.
A recycling facility for industrial waste, currently the Himeji Resource Recycling Plant, becomes operational in Himeji.
The first issue of WIEDER, a pioneering magazine on environmental information, published.
NIKKA SUMIEITO's main plant, currently the Ibaraki Resource Recycling Plant, becomes operational in Chikusei, Ibaraki Prefecture.
Unveils the corporate mission.
The second Himeji Resource Recycling Plant becomes operational.
Wins a Good Design award.
Signs the UN Global Compact.
Wins a commissioned research project from the New Energy and Industrial Technology Development Organization (NEDO).
The Institute for Sustainable Economies established.
Company stock becomes listed on the OSE Hercules Market, currently the Growth Market on the Tokyo Stock Exchange.
Launches a telemarketing service focused on CSR and environmental solutions.
Launches an informational website for CSR and environmental tips for businesses.
AMITA Institute for Sustainable Economies Co., Ltd., AMITA Eco Brain Co., Ltd., and Tobimushi Inc. established.
SUMIEITO Co., Ltd. changes its company name to AMITA CORPORATION.
Relocates its head office to Tokyo.
Assists in establishing an environmental education facility in Kyoto.
Open a West Japan sales office in Osaka.
The Kyotango Resource Recycling Plant becomes operational.(Closed in May 2018)
Launches an MSC certification service.
Launched the forest dairy farming business.
(Business sold in 2011)
Releases the e-Waste Management System, currently Smart Management.
AMITA Institute of Environmental Certification Co., Ltd. established.
The Kawasaki Resource Recycling Plant becomes operational.
（Closed in December 2022）
AMITA CORPORATION acquires AMITA Eco Brain Co., Ltd.
Opens the Tohoku Office in Sendai.
(Closed in December 2018)
Provides waste-recycling programs in areas affected by the Great East Japan Earthquake.
AMITA HOLDINGS opens the Minamisanriku Office.
Relocates the Group head office to Kudan-Kita in Chiyoda-ku, Tokyo.
AMITA HOLDINGS opens the Minamisanriku Office.
AMITA CORPORATION opens a branch office in Niigata.
AMITA HOLDINGS and AMITA Institute for Sustainable Economies relocate their head offices from Tokyo to Kyoto.
AMITA CORPORATION establishes AMITA ENVIRONMENTAL STRATEGIC SUPPORT（MALAYSIA）SDN. BHD. (AESS for short)
AESS establishes AMITA KUB-BERJAYA KITAR SDN.BHD. jointly with KUB BERJAYA ENERGY SDN.BHD.
(Company name at the time of establishment)
AMITA CORPORATION becomes the first Japanese company to be designated as a certifying body for the ASC aquaculture farm certification.
Launches the resource-recycling business in Malaysia.
The AKBK Sustainable Resource Management Centre, currently AMITA BERJAYA Sustainable Resource Management Centre, becomes operational.
AMITA HOLDINGS Co., Ltd. Established.
AMITA CORPORATION opens the Kyushu Sales Office and the Kitakyushu Resource Recycling Plant.
AMITA Institute of Environmental Certification is designated as a certifying body for the MSC chain-of-custody certification.
AMITA CORPORATION establishes AMITA TAIWAN CORPORATION.
Tobimushi Inc. sells its stock to AMITA CORPORATION.
AMITA HOLDINGS relocates its head office to Kyoto.
The Group's corporate mission updated.
AMITA Institute of Environmental Certification is designated as a certifying body for the ASC chain-of-custody certification.
AMITA HOLDINGS relocates its head office to Nakagyo-ku, Kyoto.
AMITA CORPORATION opens the Kyoto Office and a new head office in Tokyo.
AMITA Institute for Sustainable Economies opens the Keihoku Office.
Opens the Fudenkan museum in Kyoto.
AMITA CORPORATION opens the Gamagori Office. (Closed in November 2018)
AMITA CORPORATION acquires AMITA Institute of Environmental Certification.
AMITA CORPORATION establishes Minamisanriku BIO.
AMITA CORPORATION launches the Sustainable Stage service to assist businesses in achieving sustainable growth.
AMITA TAIWAN CORPORATION establishes the Taiwan Resource Recycling Plant.
(Decision to close the plant is made in April 2019)
AMITA CORPORATION launches the AMITA Smart Eco service to assist businesses in streamlining environmental management.
AMITA CORPORATION relocates its head office to Kanda in Chiyoda-ku, Tokyo.
Launches the Cyano Project to assist corporate clients in developing circular business models.
AMITA HOLDINGS establishes Codo Advisory, Inc. jointly with MCP Japan Holdings Limited.
The AMITA Group announces its commitment to becoming a Future Design Company.
Launches the Social Design Business to achieve the Group's mission.
AMITA CORPORATION acquires AMITA Institute for Sustainable Economies Co., Ltd.
AMITA CORPORATION changes its trade name to AMITA CIRCULAR CORPORATION.
Part of the business of AMITA CIRCULAR CORPORATION was transferred to newly established company AMITA CORPORATION through spin off company.
AMITA HOLDINGS establishes AMIDAO CORPORATION.