• June 15, 2007: Oskar Espina Ruiz and Shanghai Quartet Cellist on Tour in Spain. Press release and Photo.

• August 9, 2006: Oskar Espina Ruiz wins first prize at the International Clarinet Association Research Competition in Atlanta with a presentation on Menéndez. The Clarinet magazine will publish his article on Menéndez.

• July 21, 2006: Oskar Espina Ruiz and Noriko Nagasawa perform a highly acclaimed recital at Teatro Nacional in San José, Costa Rica. "Masterful soloist: polished sound, fine intonation, sustained breath and agile fingering supported interpretations of a pure musicality".—Andrés Sáenz, La Nación, Costa Rica.

• May 5, 2006: The Treetops Chamber Music Society officially elects Oskar Espina Ruiz as its Artistic and Executive Director. Based in Stamford, CT, Treetops CMS starts its 2006-07 season on October 7.