There should be no direct bus to Renshou in Rongxian County. You can consult the station: Ximen Station Tel: (0813) 626 0362; Rongxian Passenger Station: Tel: (0813) 6105414.
You can take a bus to Zigong bus terminal first, twice a day, 07:45 13:50, 148km 36.00 yuan.