Tender Announced for Main Roads, Surface Water Drainage System of Economic Zones at A’Dhahira Muscat, 5 Nov (ONA) ---- The Public Authority for Special Economic Zones and Free Zones (OPAZ) has announced the launch of a tender for the main roads, protection channels, and surface water drainage System at The Zone Economic at Dahira (EZAD), along with the accompanying services. The tender, which is funded by the Saudi Fund for Development, includes the construction of a 14.8-kilometer one-way main road, a 2-kilometer two-way road, the creation of two roundabouts on the existing ...