Troubled state miner Solid Energy doled out more than $15 million to charities in the decade before its parlous financial state was revealed earlier this year.
The state-owned enterprise, which revealed in February it owed $390 million and has cut hundreds of jobs, gave $15.3 million to community initiatives between 2001 and June last year.
The sponsorship arrangements include half a million dollars to the Christchurch Symphony Orchestra through its governing body, Arts Management Ltd.
The grants began in July 2006 and totalled $550,000 by last year. Almost all the money went to the orchestra's music education and outreach programme but $50,000 helped pay for the orchestra to tour Japan in 2011. That included $5000 for a TVNZ crew.
Solid Energy chief executive Don Elder's wife, Therese Arseneau, became chairwoman of Arts Management in 2010 and executive chairwoman in 2011.