Property Organization (WIPO) (not a signatory of the Patent Cooperation Treaty and Paris Convention for the Protection of Industrial Property, referred to as "Taiwan, Province of China") World Medical Association (WMA) (participates as "Taiwan" by the Taiwan Medical Association) World Meteorological Organization (WMO) (signed and ratified the Convention of the World Meteorological Organization on 2 March 1951, cited as "Taiwan region") World Organisation for Animal Health (OIE) (participates as "Taipei (Chinese)") World Organization of the Scout Movement (WOSM) (participates as "Scouts of China") World Tax (founded by Euromoney Institutional Investor PLC, participates as "Taiwan") World Trade Centers Association (WTCA) (participates as World Trade Center Taipei, World Trade Center Taichung and World Trade Center Kaohsiung) World Trade Organization (WTO) (full membership as "Separate Customs Territory of Taiwan, Penghu, Kinmen, and Matsu" (Chinese Taipei) and delegated by the Permanent Mission of the Separate Customs Territory of Taiwan, Penghu, Kinmen and Mastu to the WTO in Geneva.) World Veterans Federation (WVF) (participates as "R.O.C. on Taiwan") International agreements ROC is a party to major international treaties, including: Article 33 of United Nations Charter. Treaty of Commerce and Navigation with United States of America. Metre Convention (associate as "Chinese Taipei") Economic Cooperation Framework Agreement with PRC (signed between Straits Exchange Foundation and Association for Relations Across the Taiwan Straits – for ROC and PRC respectively and included the topic of direct flights, and with the improving relations between Mainland China and Taiwan, Taipei Economic and Cultural Office in Hong Kong and Taipei Economic and Cultural Office in Macau was officially launched in Hong Kong and Macau, also Hong Kong Economic, Trade and Cultural Office and Macau Economic and Cultural Office was opened in Taiwan) Territorial disputes The ROC claims islands in the South China Sea on the same basis as its claim to historical Chinese territory retaining the borders dated prior to the establishment of the PRC including Tibet and Outer Mongolia. Unlike its claims on the Asian mainland, however, the ROC actively pursues and defends some of its claims to these islands. These include all of the Spratly Islands, the Paracel Islands, Macclesfield Bank and Scarborough Shoal. These islands are administered by a number of governments around the South China Sea. The ROC also claims the Senkaku Islands, which are administered by Japan. Because ASEAN and the People's Republic of China did not invite the Republic of China to participate in the "Declaration