市场担忧南美和中东局势，贵金属、关键矿产牛市延续？

Group 1 - The article highlights the geopolitical tensions in Venezuela, Greenland, and Iran, which have led to a significant shift in oil trade practices, with 20% of oil trade moving away from the US dollar [1] - The dollar's share in global foreign exchange reserves has decreased to 56.92%, prompting the US to attempt to regain control over the "oil-dollar-debt" cycle through resource management [1] - Increased risk aversion has driven up precious metals prices, with silver and gold futures on the Shanghai Futures Exchange rising by 14.42% and 2.57% respectively on January 12 [1] Group 2 - In the "Economic Grain Cup - National Futures Simulation Championship," participants have capitalized on opportunities in stock index futures, lithium carbonate, gold, silver, and tin, with the top performer achieving a weekly return of 229% [2] - The competition, running from January 5 to January 30, has seen participants express that rising geopolitical tensions are likely to boost gold and silver prices in the short term [2] - In the previous December competition, top participants achieved monthly returns of 730%, 656%, and 469%, with several others exceeding 100% [2]