In 2002, engineer Carlos F. de la Mora Navarrete was appointed president of the Academia de Música del Palacio de Minería (a position he held until 2012). Taking advantage of the prestige and expansion enjoyed by the Sinfónica de Minería, a period of economic growth began. Special concerts began to be performed, dedicated to official institutions or private companies. Also, at the end of the summer seasons, a gala program was added outside of the subscription that integrated a special attraction or a work of great transcendence for the history of music.

The Advisory Council began to incorporate among its ranks professionals who were not necessarily graduates of the School of Engineering. The Sinfónica de Minería became the first Mexican orchestra to release records that included the complete recordings of its formal seasons.

Two days after conducting the fifth program of the 2003 Summer Season, Jorge Velazco died of a gall bladder ailment.

"Jorge was transformed, in a kind of deep ecstasy of religious introspection... I am sure now that he sensed it and I am persuaded that he enjoyed that concert with a kind of mystical acceptance," recalls Javier Jiménez Espriú.

León Spierer conducted the program immediately after Jorge Velazco's death, and his son, Carlos Spierer, took over the artistic direction of the orchestra for the rest of the programs and also during the 2004 and 2005 summer seasons.

"I didn't want to rush into selecting a new artistic director. Carlos Spierer was intimately linked to Minería and with him at the helm we had the time to make the right decision. That decision was Carlos Miguel Prieto, who in 2006 was the greatest promise of Mexican orchestral conducting. The Artistic Council was also perfected, whose head was Sergio Vela, with the intention of guaranteeing that the seasons would meet the highest standards of excellence. Also for a period of time, José Arean served as associate director. Seasons with thematic biases were created. I remember with special affection the Mahler cycle, where for two years (2010 and 2011) absolutely all of Gustav Mahler's orchestral works were programmed for the first time in Mexico", explains Carlos F. de la Mora Navarrete.