| 1846: |
Mansuke Nakarai started his business for traditional Japanese and Chinese medicine. |
| 1908: |
Mansuke Nakarai started to import chemicals from Germany. |
| 1958: |
Narakai Chemicals Ltd was founded as a spin-off from Mansuke Nakarai. |
| 1968: |
Storage - Dispatch facility in South-Kyoto was opened. |
| 1983: |
New Kyoto Factory was opened. |
| 1987: |
Research Institute was opened. |
| 1988: |
The corporate name was changed to NACALAI TESQUE, INC. with the focus on Life Sciences. |
| 1999: |
Kyoto Factory became ISO9002:1994 certified. |
| 2002: |
Kyoto Factory became ISO9001:2000 certified. |
| 2003: |
Kyoto South Office became ISO 14001 certified. |
| 2004: |
Kyoto Factory became ISO 14001 certified. |
| 2005: |
Nacalai USA was founded. |
| 2006: |
Nacalai Tesque, Inc. celebrated its 160th anniversary. |