1987
| Apr 1 | From Japanese National Railways to JR, founding of West Japan Railway Company |
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Inauguration of the West Japan Railway Company
1988
| Mar 13 | Introduction of nicknames for 9 sections in 8 track sections in Kansai urban area |
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| Apr 10 | Opening of the whole line of the Honshibisan Line (the track section between Okayama and Takamatsu nicknamed the Seto-ohashi Line) |
| Jun 28 | 1st Annual Shareholders Meeting |
| Oct 4 | Establishment of company flag and company song "Heading for Tomorrow" |

First Regular General Shareholders Meeting
1989
| Jul 21 | Start of "Twilight Express" operation |
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1990
| Mar 10 | Introduction of line colors to major lines in Kansai urban area (10 track sections) |
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| Apr 1 | Opening of the Hakataminami Line between Hakata and Hakataminami |
1991
| May 14 | Train collision accident on the Shigaraki Kogen Railway line |
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| Oct 1 | Purchase of the Sanyo Shinkansen facilities from Shinkansen Holding Corporation |
1992
| Mar 30 | Start of use of new JR-West head office building |
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1993
| Mar 18 | Debut of "Nozomi" on the Sanyo Shinkansen Line |
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1994
| Jun 15 | Opening of the Kansai-airport Line |
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| Sep 4 | Opening of Kansai International Airport |
1995
| Jan 17 | The Great Hanshin/Awaji Earthquake (major damage to the Sanyo Shinkansen Line, the JR Kobe Line and so forth) |
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| Apr 1 | Reopening of the whole line of the JR Kobe Line for the first time in 74 days closed due to earthquake |
| Apr 8 | Reopening of the whole line of the Sanyo Shinkansen for the first time in 81 days |
| Apr 28 | Introduction of "UrEDAS", Urgent Earthquake Detection and Alarm System |

Earthquake recovery

Sanyo Shinkansen "UrEDAS" alarm system introduction ceremony
1996
| Oct 8 | Stocks listed on Osaka, Tokyo and Nagoya stock exchanges |
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| Oct 15 | Stocks listed on Kyoto, Hiroshima and Fukuoka stock exchanges |
1997
| Mar 8 |
Opening of the JR Tozai Line Introduction of "J-through" system on the JR Tozai Line and the Gakkentoshi Line |
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| Jun 27 | First Shareholders Meeting after being listed on the stock exchange |
| Sep 11 | Grand opening of Kyoto Station Building |
1998
| Apr 28 | Introduction of Earthquake Early Warning System on the conventional lines |
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1999
| Feb 26 | Introduction of J-through system in Kansai urban area |
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