until 1992. It was decided in the Second Ministerial Meeting of APEC as chaired by Singapore in 1990 for the inclusion of the ROC commencing with the Third Ministerial Meeting in Seoul. After the establishment of diplomatic ties between Singapore and PRC on 3 October 1992, Singapore maintained close economic and military ties with Taiwan as part of its attempt to position itself as a neutral party. A diplomatic row broke out between China and Singapore when Lee Hsien Loong visited Taiwan one month before he was sworn in as the Prime Minister of Singapore. Singapore's Ministry of Defence moved to correct an erroneous report in the Liberty Times on a joint military exercise between the Singapore and Taiwan in March 2005. Singapore is the only foreign country to maintain military training camps in Taiwan, and continues to regularly send infantry, artillery, and armoured personnel there for training. The PRC has offered to support relocating some or all of these facilities to Hainan. On the issue of United Nations participation for Taiwan, George Yeo and Mark Chen, the two countries' Foreign Ministers at the time, engaged in a heated exchange of views in 2004 between Beijing's insistence that FTA can only be concluded among sovereign states complicates matters for Taiwan. Accordingly, Singapore and Taiwan signed the "Agreement between Singapore and the Separate Customs Territory of Taiwan, Penghu, Kinmen and Matsu on Economic Partnership (ASTEP)" in November 2013. Vietnam Taiwan–Vietnam relations are conducted on an unofficial level, as Hanoi adheres to a one-China policy and officially recognises the PRC only. However, this has not stopped bilateral visits and significant flows of migrants and investment capital between the ROC and Vietnam. The ROC is an important foreign direct investment partner to Vietnam. Other than the PRC itself, Vietnam is the only communist country that maintains an unofficial relationship with the ROC. Oceania The ROC maintains diplomatic relations with four countries in Oceania: the Marshall Islands, Nauru, Palau and Tuvalu. China has relations with eight others (including Australia, Papua New Guinea, Vanuatu, New Zealand, Solomon Islands and Fiji). The Pacific is an area of intense and continuous diplomatic competition between Beijing and Taipei, with several countries (Nauru, Kiribati, Vanuatu, Solomon Islands) having switched diplomatic support from one to the other at least once. Both the PRC and the ROC provide development aid to their respective allies. In exchange, ROC allies support its membership