| 1993 | November | ELNA TOHOKU CO., LTD. Aomori Factory achieves ISO 9002 certification. |
|---|---|---|
| 1994 | July | PCB business achieves ISO 9001 certification. |
| 1995 | June | TANIN ELNA CO., LTD. achieves ISO 9002 certification. |
| 1996 | December | ELNA TOHOKU CO., LTD. Aomori Factory and Shirakawa Factory achieves ISO 9001 certification. |
| 1998 | June | ELNA TOHOKU CO., LTD. Aomori Factory achieves QS 9000 certification. |
| August | ELNA-SONIC SDN. GHD. achieves ISO 9002 certification. | |
| September | ELNA PCB (M) SDN. BHD. achieves ISO 9002 certification. | |
| December | ELNA PCB (M) SDN. BHD. achieves ISO 14001 certification. | |
| 2000 | February | ELNA TOHOKU CO., LTD. Ishikawa Factory achieves ISO 9001 certification. |
| November | ELNA MATSUMOTO CO., LTD. achieves ISO 9002 certification. | |
| 2001 | October | Attestation of ISO 14001 is acquired with a printed wired board enterprise. |
| 2002 | February | ELNA-LELON ELECTRONICS (SUZHOU) CO., LTD. achieves ISO 9001:2000 certification. |
| Octover | ELNA MATSUMOTO CO., LTD. achieves ISO 14001 certification. | |
| November | TANIN ELNA CO., LTD. achieves QS 9000 certification. | |
| 2003 | All ELNA Group Companies move to ISO9001:2000. | |
| January | ELNA TOHOKU CO., LTD. Aomori Factory achieves ISO 14001 certification. | |
| February | ELNA-SONIC SDN. BHD achieves QS 9000 certification. | |
| August | ELNA-LELON ELECTRONICS (SUZHOU) CO., LTD. achieves ISO 14001 certification. | |
| December | ELNA-SONIC SDN. BHD achieves ISO 14001 certification. | |
| 2004 | March | TANIN ELNA CO., LTD. achieves ISO 14001 certification. ELNA TOHOKU CO., LTD. Shirakawa Factory achieves ISO 14001 certification. |







