Eight US senators have asked the Obama administration to take action against China over what they say are unfair subsidies to the Chinese aluminum industry. In an Oct. 21 letter to US Trade Representative Michael Froman, reviewed by The Wall Street Journal, the senators said China’s “unfair trade practices” are “undermining the entire US aluminum value chain.” The Journal has reported that federal officials recently opened investigations into aluminum imports originating in China. The letter says China’s aluminum producers benefit from government reductions on their energy bills and “tens of millions of dollars in cash infusions.” Chinese aluminum products are already subject to US tariffs, some as high as 374.15%.