Originally posted by the Voice of America. Voice of America content is produced by the Voice of America, a United States federal government-sponsored entity, and is in the public domain. Why Old Friends China, Malaysia Suddenly Disagree over Tract of Sea Ralph Jennings TAIPEI, TAIWAN - China and Malaysia, old friends with a complex trade and investment relationship, are disagreeing over Malaysia's rights to extend sovereignty into part of a disputed sea that's rich in fossil fuel reserves. On Dec.12, the Southeast Asian nation submitted documentation to the U.N. Commission on the Limits of the Continental Shelf about plans to extend its rights over the South China Sea beyond 370 kilometers from its baselines. The documentation, linked to a related application that Malaysia and Vietnam made 10 years ago, met with opposition from China's U.N. mission. China claims about 90% of the sea. The government of Malaysian Prime Minister Mahathir Mohamad is reviewing the country's rights offshore with an eye toward asserting any that involve Beijing because other countries are resisting Chinese expansion now too, analysts say. The United States particularly opposes China's maritime expansion and, to that end, gives military support to Chinese rivals in Asia. Malaysia's challenge, although it doesn't mention China by name, could eventually tease out more aid from Beijing while expanding its foothold in a contested sea where other countries have made gains in the past. "They're looking at all this really hard-core pressure against the Chinese and seeing it's a potential strategic window to probably exploit more financial aid, more development aid from China," said Stephen Nagy, senior associate politics and international studies professor at International Christian University in Tokyo. "They're exerting the pressure at the right time, understanding it's in line with the other states in the region rather than being an outlier," he said. Old friends Malaysia's former prime minister, Najib Razak, whose coalition lost parliamentary elections in 2018 to Mahathir's camp, seldom criticized China and instead accepted Chinese funding for domestic infrastructure projects despite fears among Malaysians about too much Chinese economic influence. As of mid-2018, Malaysia had racked up about $34 billion in loans for projects under the Belt and Road Initiative, China's $1 trillion program to build trade-related infrastructure in nearly 70 countries extending into Europe. In 2017, China contributed 7% of the total $13.6 billion that Malaysia received from other countries. .