A Brunei firm has proposed the first high-speed rail network in Borneo to shorten travel between Kalimantan, Sarawak, Sabah and Brunei.

Brunergy Utama Sdn Bhd’s Trans-Borneo Railways (TBR) project route will span 1,620km and trains will travel at speeds of between 300 and 350kph.

According to its website, stations will be an estimated...