A new border crossing in Aruk at the western terminus of the Trans-Kalimantan Highway Southern Route was inaugurated by the President of Indonesia, Joko Widodo on 17 March 2017, which is linked to the Sarawak Pan-Borneo Highway FT1 via the Lundu–Biawak Road (Sarawak State Route Q516).

[7] The missing link is planned to be eliminated through the construction of the Balang Island Bridge, which is targeted to be completed in 2019.

[3] During colonial times in 1800s, the European colonists were obsessed in travelling across the Borneo island from east to west by land.

[1] The Trans Kalimantan Highway Southern Route was completed in 2016 with the opening of the Tayan Bridge.

[3] Many sections of the highway is still unpaved yet, including the first 12 kilometres (7.5 mi) from its western terminus at the new border crossing in Aruk.