Lebuhraya Kajang Seremban (LEKAS) is a new dual three lane highway between Kajang and Seremban. Traversing generally in a southerly direction, LEKAS commences immediately south of the Kajang Ring Road clover leaf interchange and ends at Paroi, in Seremban, Negeri Sembilan Darul Khusus. The highway concession was awarded to LEKAS in November 2006, with IJM Corporation Berhad and KASEH Sdn Bhd as the equity shareholders.
With a total length of 44.3 km, LEKAS forms an effective toll expressway between Kuala Lumpur Eastern Sector and the heart of Seremban. The alignment passes through highly developed areas of Kajang, Semenyih, Pajam, Mantin, Setul and Paroi. LEKAS is adopting the close toll system between Kajang and Setul, and an open toll system between Setul and Paroi, comprising of three mainline toll plazas and three off ramp toll plazas.