Group 1 - The core achievement of the recent Sino-Russian energy cooperation is the substantial progress made on the China-Russia-Mongolia natural gas pipeline project, along with multiple agreements to expand existing energy cooperation [2][3] - The implementation of these projects is estimated to add 50 billion cubic meters of natural gas supply from Russia to China annually, which is significant considering China's natural gas import volume was approximately 180 billion cubic meters last year [3] - The deepening of Sino-Russian energy cooperation is expected to reduce China's reliance on other energy sources, particularly the United States, which poses a challenge to the U.S. strategy of establishing energy dominance [3][4] Group 2 - China has consistently pursued a strategy of diversifying its energy import channels, with cooperation with Russia being a key aspect of this strategy [4][5] - The energy provided by Russia is competitively priced, with Russian President Putin stating that the Power of Siberia 2 project will offer market-competitive natural gas prices to China, which are expected to be lower than those offered to Europe [4] - China's energy decisions are primarily based on national interests, and while there may still be some imports from the U.S., the expectation of establishing strategic influence through energy exports is unlikely to succeed [5]