The story
In 1982, the company was incorporated as Miyafuku Railway Corporation (宮福鉄道株式会社, Miyafuku Tetsudō Kabushiki-gaisha) for the purpose of the construction and operation of the Miyafuku Line, the construction of which was suspended due to financial difficulties of the Japanese National Railways (JNR). The Miyafuku Line was completed in 1988. In the same year, local governments selected the company as the operator of the existing Miyazu Line, which was to be separated from West Japan Railway Company (JR West) in 1990.
Following the downturn in the business, investors including the Kyoto Prefecture government decided to introduce a new scheme of business, in which a separate company would operate trains on the tracks of KTR. Willer Group, being the only applicant for this proposal, was selected as the operator and later established Willer Trains Inc. The transfer of business took effect on April 1, 2015.
1982-09-22 – Incorporation as Miyafuku Railway Corporation
1982-12-24 – Issuance of railway business license of the Miyafuku Line
1988-06-22 – Shareholders' approval to the purchase of Miyazu Line business
1988-07-16 – Inauguration of the Miyafuku Line
1989-09-29 – Issuance of railway business license of the Miyazu Line
1989-08-01 – Change of corporate name to Kitakinki Tango Railway Corporation
Read the full text
1990-04-01 – Transfer of business of the Miyazu Line from JR West to KTR
1996-03-16 – Electrification of the entire Miyafuku Line and Miyazu–Amanohashidate segment of the Miyazu Line
2007-09-01 – Relocation of corporate headquarters from a prefecture government building in Kyoto to a JR West building in Fukuchiyama
2015-04-01 – Transfer of train operation function to Willer Trains
From Wikipedia’s article on Kitakinki Tango Railway, shared under CC BY-SA 4.0.4