In 1944, the team of the railway workers, brought together the best players from Târgu Mureș, that previously played for MSE, MNKTE and MAV.

The team participated in the local championship under the name of ASM Târgu Mureş.

In 1945 ASM became Dermagant and under this name the team promoted to Divizia A, in 1947, after a play-off match against Karres Mediaș.

In 1947 the club changed its name to RATA, after the name of the factory, its main sponsor.

The club played for 9 consecutive seasons in Divizia A and 10 in total, being the 2nd most successful team in the history of the city, after ASA Târgu Mureș.