The Public-Private Partnership (PPP) Center oriented eight government-owned and -controlled corporations (GOCC) comprised of Laguna Lake Development Authority (LLDA), National Dairy Authority (NDA), National Irrigation Authority (NIA), National Housing Authority (NHA), Philippine Economic Zone Authority (PEZA), Philippine National Oil Company (PNOC), Social Security System (SSS), and Tourism Infrastructure and Enterprise Zone Authority (TIEZA) on how to manage unsolicited proposals received from private sectors last June 27, 2019, at the PPP Center, Quezon City.