Carmela Marie Santos, Mark Peñalver, Sustainable Davao Movement, represented by Carmela Marie Santos and Mark Peñalver, and Marvelous Dainty Camilo v. Department of Public Works and Highways, represented by Hon. Manuel M. Bonoan in his capacity as Secretary of Public Works and Highways, Department of Environment and Natural Resources, represented by Hon. Maria Antonia Yulo-Loyzaga in her capacity as Secretary of Environment and Natural Resources, Samal Island Protected Landscape and Seascape Protected Area Management Board, represented by Hon. Ma. Mercedes V. Dumagan in her capacity as Regional Executive Director of DENR-Regional Office XI, and China Road and Bridge Corporation