WASHINGTON, July 11 (Reuters) - President Joe Biden on Tuesday nominated a senior career diplomat to be U.S. ambassador to the Marshall Islands, a strategic Pacific territory that has become a focus for competition with China. A Chinese speaker, Stone also worked previously as coordinator of efforts to counter Chinese malign economic influence and as acting deputy assistant secretary for China, Taiwan, Hong Kong, and Mongolia. Meanwhile, Chinese diplomats have been courting the region and China's construction and mining companies have expanded their business in Pacific island nations. In May, the U.S. said it had renewed COFA terms with Micronesia and Palau and its chief negotiator told Reuters then he hoped to finalize a deal with the Marshall Islands, whose COFA is due to expire this year, in coming weeks. Last year, more than 100 arms-control, environmental and other activist groups urged the Biden administration to formally apologize to the Marshall Islands and provide fair compensation.

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Persons: Joe Biden, Laura Stone, Stone, China's, Biden, David Brunnstrom, Sandra Maler Organizations: State Department's Office, Free Association, Washington, Marshall, Reuters, Marshall Islanders, U.S, Thomson Locations: Marshall, China, India, Nepal, Sri Lanka, Bangladesh, Bhutan, Maldives, Taiwan, Hong Kong, Mongolia, U.S, Pacific, Micronesia, Palau, Bikini