The Subic Bay Metropolitan Authority (SBMA) has prolonged by one month its preparations for the Swiss challenge for the ₱6.2-billion Subic Bay International Airport (SBIA) project in a bid to ensure that tender documents and contractual frameworks are complete as well as clear for prospective challengers.In a May 14 bid bulletin, SBMA’s pre-qualification, bids, and awards committee (PBAC) for SBIA announced that the issuance and availability of …