Middle of 2008, all the documents were ready except for the Batanes dossier. UNESCO set early 2010 as the deadline for the dossier for site inscription, however, the local officials of Batanes failed to make a dossier, and thus, the site was officially taken out from referred status. Due to this, the nomination reverted to zero. This failure led the Heritage Conservation Society to focus on the nomination of Davao Oriental's Mount Hamiguitan Range Wildlife Sanctuary, which became a UNESCO World Heritage Site in 2014. In September 2008, the Philippines participated in the Workshop for the World Heritage property of Lumbini, the birthplace of Lord Buddha held in Nepal. In 2009, the boundaries of Tubbataha Reefs Natural Park was expanded.