After its formation, the company recommenced construction and subsequently opened the lines and now operates them.
Each company station has a unique alphanumeric label that complements the Shikoku Railway Company (JR Shikoku) system, designed to assist passengers unfamiliar with the lines, especially at transfer stations.
As of April 2014, the company owned a fleet of 23 diesel multiple unit cars as shown below.
[2] The Tosa Kuroshio Railway was founded on 8 May 1986 for the purpose of resuming construction of the Sukumo and Asa lines, which had been planned by JNR but abandoned.
[1] The company however first took over control of operations on the 43.0 km former JNR Nakamura Line (Kubokawa to Nakamura) from 1 April 1988, as its continued operation was a requisite for opening the Sukumo Line.