| 1989 | Establish Nitto Denko Bangkok office [NBK] (Representative of NSG) |
| 1993 | Establish Nitto Denko (Thailand) Co., Ltd. [NTH] (NBK was closed) |
| 1997 | Establish Nitto Denko Material (Thailand) Co.,Ltd. [NMT] |
| 1997 | Start the construction of the factory in Rojana Industrial Park. |
| 1998 | Receive BOI license. (T-cutting , NITTO EPTSEALER) |
| 1998 | Complete the factory and set up the machines. |
| 1998 | Start up Tape cutting operation |
| 1998 | Start up manufacturing of Sealing sponge (NITTO EPTSEALER) |
| 1999 | Certified with ISO 9002 : 1994 |
| 2001 | Certified with ISO 9001 : 2000 , QS 9000 : 1998 |
| 2002 | Receive BOI license. (Speaker-edge) |
| 2003 | Start up Manufacturing of Speaker-edge materials |
| 2003 | Receive BOI license (IPO business) |
| 2003 | Certified with ISO 14001: 1996 |
| 2004 | Start the construction of the new factory |
| 2004 | Certified with ISO/TS 14969 : 2002 (EPT , Speaker-edge) |
| 2004 | Complete the new factory |
| 2004 | Receive BOI license (SPV) |
| 2004 | Start the business of CISFLEX inspection |
| 2005 | Start up SPV tape laminate operation |
| 2005 | [NTH] was closed , [NMT] took over [NTH] business |
| 2005 | Receive BOI license (Silicone-free label) |
| 2005 | Certified with OHSAS 18001 : 1999 |
| 2005 | Receive BOI license (Nito-Hard) |
| 2006 | Start up Manufacturing of Nito-hard |
| 2006 | Complete the second clean room for CISFLEX inspection |
| 2008 | Receive BOI license (NITTO EPTSEALER - New project) |
