• Bid No. 20-01 Supply and Delivery of Materials and Labor for the Replacement of UPS Batteries for 2 X 30KVA Inform UPS-Control Tower at Puerto Princesa International Airport - (Bid Documents)
• Bid No. 20-02 Supply and Delivery of Materials for the Preventive Maintenance of Chiller/AHUS at Puerto Princesa International Airport - (Bid Documents)
• Bid No. 20-03 Replacement of UPS Batteries for 1 X 30KVA Informs UPS - Control Center and 1 Back-Up Battery Cabinet 30KVA at Puerto Princesa International Airport - (Bid Documents)