LONDON (Reuters) – Global nickel smelting activity climbed in March, including in major producer Russia despite the Ukraine conflict, data from satellite surveillance of nickel plants showed. Production in Russia has continued unhindered, according to a statement on Tuesday from commodities broker Marex and SAVANT, a satellite analytics service it launched with Earth-i in 2019. Russia supplies about 10% of the world’s nickel. SAVANT has picked up disruptions at Ukraine’s only ferro-nickel producer, Pobuzhskiy, but not at Nornickel’s Nadezhda metallurgical plant in Russia, the statement said. E…