Business Income Tax. For tax years beginning on or after January 1, 2015. corporations â 5.25 percent of net income. trusts and estates â 3.75 percent of net income.
Previously this substance had been known as a rare mineral of tiny colorless crystals, discovered in 1987 and named after the Poudrette family that operated the source quarry at Mont Saint-Hilaire, Quebec. GRANDIDIERITE is a bluish green mineral found primarily in Madagascar.
Among those, the scarcest is 190, whose natural occurrence is 0.014%. If platinum as a whole exists at 7.5 ppb in the earthâs crust, 190Pt would be 0.014% of that: 0.00105 ppb or about one part per trillion. Therefore, isotopically pure platinum-190 is the most precious metal in the world.