Print RANCHO CUCAMONGA, Calif. — Sumitomo Rubber North America Inc. has promoted four veteran executives to new positions that "reflect their important contributions to the tire brand." The executives affected, and their new positions, are: Darren Thomas, senior vice president and chief operating officer; Rick Brennan, vice president of marketing; Matt Leeper, vice president, four-wheel sales; and Toby Beiner, vice president, finance. "I congratulate my colleagues on their well-deserved promotions, as their hard work and result-oriented focus have helped SRNA become the highly successful company it is today," President and CEO Richard Smallwood said. "Along with my other senior staff, I believe Falken Tires and Dunlop Motorcycle Tires are well-positioned to continue outperforming the market, building valuable OE partnerships, and providing the exceptional service our customers deserve."