JOHNSON MATTHEY'S PLATINUM GROUP PRICES Johnson Matthey today issued the following Platinum group base prices (unfabricated), all U.S. Dlrs per troy ounce. Previous prices in parentheses. PLATINUM - 562 (567) PALLADIUM - 130 (130) IRIDIUM - 400 (400) RHODIUM 1,230 (1,230) RUTHENIUM - 80 (80)