MTD Prime Sdn Bhd - a wholly-owned subsidiary of MTD InfraPerdana Bhd is the tolling concessionaire for the Kuala Lumpur - Karak Highway (KLK) and its extension, the East Coast Expressway Phase 1 (ECE1). The 60 km KLK is the main thoroughfare connecting the Klang Valley and Karak Town whilst the 174km ECE 1 begins from Karak to Jabor.
Metramac Corporation Sdn Bhd was granted the concession on four toll roads in 1992 under a Replacement Concession Agreement signed with Datuk Bandar Kuala Lumpur. The four toll roads under the concession awarded to Metramac Corporation Sdn Bhd are Jalan Pahang, Jalan Cheras, East-West Link Expressway and the KL-Seremban Expressway.