Analysts say opening of LNG facility in Queensland with exports to China could affect Yamal as Pacific countries look to take on Russia in Asia.
Officials deny any risk of atomic contamination from the site in Sakha Republic.
More than 20 new deals on energy, investment and education are inked in Beijing.
A pioneering French-Siberian Scientific and Education Centre highlights international recognition of Siberia's scientific strength.
Russian president's flight to Salekhard delayed after airport closed by freezing rain.
Customs procedures and rules on foreigners staying in duty-free region will be relaxed in move that will bolster the economy and boost trade from 2016.
Swift response by the Russian president to Canada's move to claim seabed under the North Pole and surrounding waters.
The Chinese media - and even more the country's social media - saw glamorous new first lady Peng Liyuan as the star of the summit.
Memorandum of understanding will see construction of major projects including new refinery and upgrade to port.
Staff and passengers at Nyagan airport in fear of bear patrolling the runway and trying to break into terminal.