K-MAN group operates non-route bus operations, starting in 1991 until the present for almost 30 years by establishing Khunanan Transport Limited Partnership by Khun Anan and Khun Saeng-Arun Somprayoon, providing 4 shuttle buses to employees in Samut Prakan Province and expanded into one and half-decker air-conditioned bus with 40 seats, double-decker air-conditioned buses with 45 seats, and vans. Currently, K-Man Group has affiliates as follows: