Mealey's (January 25, 2023, 1:47 PM EST) -- ST. LOUIS — A federal judge in Missouri has ruled that Missouri law applies to the majority of claims brought by Peruvian citizens who allege they were injured when they were exposed as children to toxic substances from the La Oroya Complex, a metallurgical smelting and refining facility in Peru. The judge also certified her ruling for immediate appeal on grounds the case is “exceptional.”...