This law requires reporting of the use of columbite-tantalite (tantalum, used in capacitors), cassiterite (used to make tin), wolframite (tungsten) and gold that comes from mines located in the eastern part of the Democratic Republic of Congo.  Since neodymium magnets don't usually contain these elements, they shouldn't be covered by this law.  Learn more about what elements are used in the manufacture of neodymium magnets in our article: How Neodymium Magnets are Made.