1906 |
Established Nankai Ryuhi Co., Ltd. |
1907 |
Started manufacturing bleaching powder by the LEBLANC'S method in Kozaika, Wakayama City.
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1910 |
Started manufacturing sulfuric acid by nitric acid method in Minato, |
1918 |
Started manufacturing caustic soda and chlorides by Nelson-electrolysis method in Kozaika, Wakayama City. |
1928 |
Established Tosa Ryuso Co.,Ltd. |
1937 |
Renamed Nankai Chemical Co.,Ltd. |
1939 |
Amalgamated with Nakayama Steelworks, Ltd. |
1951 |
Established as Nankai Chemical Co., Ltd., with capital stock of 15,000,000 yen. |
1959 |
Started manufacturing sulfuric acid by the burning of waste sulfuric acid. |
1965 |
Started manufacturing high-test calcium hypochlorite at Tosa Factory. |
1985 |
Strengthened organization of research and development and started development of organic products. |
1986 |
Changed caustic soda manufacturing method at Wakayama Factory from existing mercury method to ion-exchange membrane method. |
1987 |
Started manufacturing organic chlorine compounds(intermediate products). |
1988 |
Changed existing sulfuric acid manufacturing method from existing nitric acid method to contact method. |
1990 |
Increased capital stock to 207,000,000 yen and established General Research Center. |
1994 |
Started manufacturing PAC water treatment agent at Aogishi Factory. |
1996 |
Renewed 60% of high-test calcium hypochlorite manufacturing equipment at Tosa Factory and newly established trichloro isocyanuric acid processing line. |
1997 |
Completed production line for TCCA basis. |
1998 |
Obtained ISO-9002 Certification at Head Office, Kozaika Factory and Aogishi Factory Established integrated production system for TCCA. |
1999 |
Obtained ISO-9002 Certification at Head Office and Tosa Factory. |
2000 |
Increased the capital to the amount of 303,000,000 yen. |
Obtained ISO-14001 Certification at Kozaika Factory and Aogishi Factory. |
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Tokyo Office has been established. |
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Manufacturing facility of poly iron sulfate has been newly installed. |
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2002 |
Tosa Office is established. Production and sale of salt for general use begins. NM Salt Corporation is founded. |
Head Office, Kozaika Factory, and Aogishi Factory are awarded upgraded ISO 9001 certifications. |
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2003 |
Tosa Factory ISO 9001 is awarded upgraded ISO 9001 certification. |
R&D section is spun off as Nankai Chemical R&D Co., Ltd. |
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2004 |
Yamafuji Co., Ltd. becomes a subsidiary of Nankai Chemical Industry Co.,Ltd. |
2005 |
Polysilica iron (PSI) production equipment is installed at Aogishi Factory. |
Fukuoka Office is established. |
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2006 |
Fuji Amide Chemical Co., Ltd. becomes a subsidiary of Nankai Chemical Industry Co.,Ltd. |
2010 |
Renamed Nankai Chemical Co,Ltd. |
Environmental recycling section is spun off as NC Environmental Services Co Ltd |
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2011 |
The commercial transactions are inherited from Fuji Amide Chemical Co.,Ltd. |
2013 |
fNankai Global Chemi Campany Limited(SPC) aquired all of stocks Nankai Chemical Co,Ltd ,which had been owned by Nakayama Steel Works,LTD |
Sodium hydro sulfide production equipment is installed at Aogishi Factory. |
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Nankai Chemical Co,Ltd. merged with Nankai Global Chemi Campany Limited |
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Increased the capital to the amount of 454,139,200 yen. |
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2014 |
The introduction of energy-saving multi-polar electrolyzer at Wakayama Factory |
2018 | Merged with Yamafuji Co.,Ltd. and Kyoto Branch has been established |
2019 | Merged with Nankai Chemical R&D Co.,Ltd. |
2020 | Merged with Konan Industry Co.,Ltd. |