|  1987. | 3 | Established  NIPI Korea Co., Ltd. | 
                      
                        |  1987. | 7 | Completed  the construction of Gumi Plant. | 
                      
                        |  1987. | 11 | Registered  as UL-authorized business | 
                      
                        |  1989. | 2 | Signed  a technology import agreement with Japan Pigment Co., Ltd. | 
					  
                        |  1990. | 8 | Established  Gumi Plant. | 
                      
                        |  1995. | 11 | Established  the Research Center | 
                      
                        |  1998. | 12 | Achieved  ISO 9001 certification | 
                      
                        |  2000. | 2 | Changed  names to NPK Co., Ltd. | 
                      
                        |  2000. | 10 | Listed  on KOSDAQ. | 
                      
                        |  2001. | 12 | Bought  Yoochang Tech Co., Ltd. (specializing in injection molding) | 
                      
                        |  2002. | 11 | Achieved  ISO 9001 and 2000 certifications | 
                      
                        |  2005. | 3 | Bought  Kostech Co., Ltd. (specializing in masterbatches) | 
                      
                        |  2007. | 1 | Created  the Nano Division | 
                      
                        |  2007. | 3 | Completed  the Nano-Business Plant in Pyeongtaek. |