DIWALWAL SPECIAL ECONOMIC ZONE (DSEZ) AND JEWELRY PARK PROJECT It is a 288-hectare mixed-use development project, which will be established in Tagbanao Area, Sitio Depot, Barangay Upper Ulip, Monkayo, Compostela Valley Province. It is the first of its kind among the new types of ecozones that will be promoted by PMDC in partnership with the Philippine Economic Zone Authority (PEZA).