
The event, scheduled for 11am, will be attended by Terengganu Menteri Besar Ahmad Samsuri Mokhtar.
Loke previously said the relaunch of the ECRL project would create a larger function and scope for local companies.
The project was 15% complete when it was put on hold in July last year.
The cost of Phase I and II was reduced to RM44 billion from the original RM65.5 billion following negotiations between the government and developer.
The new route is also shorter by 40km, meaning a total length of 648km instead of 688km. It will run from Kota Bahru through Mentakab, Jelebu, Kuala Kelawang, Bangi/Kajang, Putrajaya and end at Port Klang.