| 1977-04 |
Founded as SUMIEITO KOSAN in Himeji. |
| 1979 |
Starts offering solid waste as alternative materials for natural resources. |
| 1986 |
Starts recycling metal-containing solid waste into usable resources. |
| 1987-04 |
Opens a sales office in Tokyo. |
| 1989-04 |
SUMIEITO KOSAN changes its company name to SUMIEITO Co., Ltd. |
| 1992 |
The first issue of WIEDER, a pioneering magazine on environmental information, published. |
| 1992-07 |
A recycling facility for industrial waste, currently the Himeji Resource Recycling Plant, becomes operational in Himeji. |
| 1994-04 |
Opens a sales office in Nagoya. |
| 1994-06 |
Jointly establishes NIKKA SUMIEITO with Hitachi Chemical. |
| 1995-05 |
NIKKA SUMIEITO's main plant, currently the Ibaraki Resource Recycling Plant, becomes operational in Chikusei, Ibaraki Prefecture. |
| 1995-09 |
Unveils the corporate mission. |
| 1996-12 |
Acquires a patent for SlurMixR, a technology for recycling industrial waste into alternative fuel. |
| 1997 |
The second Himeji Resource Recycling Plant becomes operational. |
| 1999-09 |
Launches an FSCR certification service. |
| 2000-04 |
SUMIEITO Co., Ltd. changes its company name to AMITA CORPORATION. |
| 2001-10 |
Wins a Good Design award. |
| 2001-11 |
Relocates its head office to Tokyo. |
| 2002 |
Assists in establishing an environmental education facility in Kyoto. |
| 2002-06 |
Signs the UN Global Compact. |
| 2003-07 |
Wins a commissioned research project from the New Energy and Industrial Technology Development Organization (NEDO). |
| 2004-01 |
Open a West Japan sales office in Osaka. |
| 2005-07 |
The Institute for Sustainable Economies established. |
| 2005-08 |
The Kyotango Resource Recycling Plant becomes operational.(Closed in May 2018) |
| 2006-06 |
Company stock becomes listed on the OSE Hercules Market, currently the Growth Market on the Tokyo Stock Exchange. |
| 2006-09 |
Launches an MSC certification service. |
| 2007 |
Launched the forest dairy farming business. |
| 2008 |
Launches a telemarketing service focused on CSR and environmental solutions. |
| 2009 |
Releases the e-Waste Management System, currently Smart Management. |
| 2009-02 |
Launches an informational website for CSR and environmental tips for businesses. |
| 2009-02 |
AMITA Institute for Sustainable Economies Co., Ltd., AMITA Eco Brain Co., Ltd., and Tobimushi Inc. established. |
| 2010 |
The Kawasaki Resource Recycling Plant becomes operational. （Closed in December 2022） |
| 2010-01 |
AMITA HOLDINGS Co., Ltd. Established. |
| 2010-04 |
AMITA Institute of Environmental Certification Co., Ltd. established. |
| 2010-06 |
AMITA CORPORATION opens the Kyushu Sales Office and the Kitakyushu Resource Recycling Plant. |
| 2010-09 |
AMITA Institute of Environmental Certification is designated as a certifying body for the MSC chain-of-custody certification. |
| 2011 |
Provides waste-recycling programs in areas affected by the Great East Japan Earthquake. |
| 2011-04 |
AMITA CORPORATION acquires AMITA Eco Brain Co., Ltd. |
| 2011-06 |
AMITA CORPORATION establishes AMITA TAIWAN CORPORATION. |
| 2011-07 |
Opens the Tohoku Office in Sendai. (Closed in December 2018) |
| 2011-09 |
Tobimushi Inc. sells its stock to AMITA CORPORATION. |
| 2012-01 |
AMITA HOLDINGS relocates its head office to Kyoto. |
| 2012-01 |
The Group's corporate mission updated. |
| 2012-03 |
AMITA HOLDINGS opens the Minamisanriku Office. |
| 2012-10 |
AMITA Institute of Environmental Certification is designated as a certifying body for the ASC chain-of-custody certification. |
| 2013-12 |
Relocates the Group head office to Kudan-Kita in Chiyoda-ku, Tokyo. |
| 2014-01 |
AMITA HOLDINGS relocates its head office to Nakagyo-ku, Kyoto. |
| 2014-01 |
AMITA CORPORATION opens the Kyoto Office and a new head office in Tokyo. |
| 2014-01 |
AMITA Institute for Sustainable Economies opens the Keihoku Office. |
| 2014-07 |
Opens the Fudenkan museum in Kyoto. |
| 2014-09 |
AMITA CORPORATION opens the Gamagori Office. |
| 2014-12 |
AMITA CORPORATION opens a branch office in Niigata. |
| 2015-03 |
AMITA HOLDINGS and AMITA Institute for Sustainable Economies relocate their head offices from Tokyo to Kyoto. |
| 2015-04 |
AMITA CORPORATION acquires AMITA Institute of Environmental Certification. |
| 2015-07 |
AMITA CORPORATION establishes AMITA ENVIRONMENTAL STRATEGIC SUPPORT（MALAYSIA）SDN. BHD. (AESS for short) |
| 2015-10 |
AMITA CORPORATION establishes Minamisanriku BIO. |
| 2015-12 |
AESS establishes AMITA KUB-BERJAYA KITAR SDN.BHD. jointly with KUB BERJAYA ENERGY SDN.BHD. (Company name at the time of establishment) |
| 2016-02 |
AMITA CORPORATION launches the Sustainable Stage service to assist businesses in achieving sustainable growth. |
| 2016-03 |
AMITA CORPORATION becomes the first Japanese company to be designated as a certifying body for the ASC aquaculture farm certification. |
| 2016-04 |
AMITA TAIWAN CORPORATION establishes the Taiwan Resource Recycling Plant. |
| 2017 |
The AKBK Sustainable Resource Management Centre, currently AMITA NAZA Sustainable Resource Management Centre, becomes operational. |
| 2017-05 |
Launches the resource-recycling business in Malaysia. |
| 2018-11 |
AMITA CORPORATION launches the AMITA Smart Eco service to assist businesses in streamlining environmental management. |
| 2020-06 |
AMITA CORPORATION relocates its head office to Kanda in Chiyoda-ku, Tokyo. |
| 2021-01 |
The AMITA Group announces its commitment to becoming a Future Design Company. |
| 2021-01 |
Launches the Social Design Business to achieve the Group's mission. |
| 2022-03 |
AMITA HOLDINGS establishes Codo Advisory, Inc. jointly with MCP Japan Holdings Limited. |
| 2023-01 |
AMITA CORPORATION changes its trade name to AMITA CIRCULAR CORPORATION. |
| 2023-01 |
Part of the business of AMITA CIRCULAR CORPORATION was transferred to newly established company AMITA CORPORATION through spin off company. |
| 2023-01 |
AMITA HOLDINGS establishes AMIDAO CORPORATION. |
| 2023-01 |
The AMITA group implements 32-hour work week to enhance value creation by improving employees' well-being. |
| 2024-10 |
PT Amita Tamaris Lestari establishes PT Amita Prakarsa Hijau joinyly with PT Sari Bhakti Sejati (a subsidiary of PT Indocement Tunggal Prakarsa Tbk.). |
