China mischt in Lateinamerika immer stärker mit -- zum Ärger der USA: Driven by one the largest and most sustained economic expansions in history, and facing bottlenecks and shortages in Asia, China is increasingly turning to South America as a supplier. It is busy buying huge quantities of iron ore, bauxite, soybeans, timber, zinc and manganese in Brazil. It is vying for tin in Bolivia, oil in Venezuela and copper here in Chile, where last month it displaced the United States as the leading market for Chilean exports. While President Bush is spending the weekend here for the Asian-Pacific Economic Cooperation forum, President Hu Jintao of China is here in the midst of a two-week visit to Argentina, Brazil, Chile and Cuba. In the course of it, he has announced more than $30 billion in new investments and signed long-term contracts that will guarantee China supplies of the vital materials it needs for its factories. The United States, preoccupied with the worsening situation in Iraq, seems to have attached little importance to China's rising profile in the region. If anything, increased trade between Latin America and China has been welcomed as a means to reduce pressure on the United States to underwrite economic reforms, with geopolitical considerations pushed to the background. "On the diplomatic side, the Chinese are quietly but persistently and effectively operating just under the U.S. radar screen," said Richard Feinberg, who was the chief Latin America adviser at the National Security Council during the Clinton administration. "South America is obviously drifting, and diplomatic flirtations with China would tend to underscore the potential for divergences with Washington."