The meaning of mark

Circular   -   Infinite growth by collecting willpower
Triangular   -   Determination to build a tower
Gold   -   Realization of the best values

The meaning of each of the three triangular pyramids

Jeonggyeon   -   Viewing rightly
Jeongsa   -   Thinking rightly
Jeonghaeng   -   Behaving rightly

The meaning of Sung Shin RST

SungShin (成信)

Sung Shin means growing as a company trusted
from customers with integrity and honesty

(Rolling Stock Technology)

RST(Rolling Stock Technology) means growing as a company that manufacture convenient rolling stock based on eco- friendly and more safer technologies.