(Bloomberg) -- China’s latest investments in South America’s lithium triangle show the challenges for US efforts to counter the dominance of the world’s second-largest economy in key parts of battery metal supply chains.Most Read from BloombergIsrael Latest: Army Says Hamas Officials Dead; Over 600,000 in Gaza Flee SouthIsrael Latest: Minister Warns of Long War as Biden Weighs VisitUS Pushes to Contain Israel-Hamas War, Warns Iran About EscalationUS to Tighten Rules Aimed at Keeping Advanced Chi