Facts

The preparation of the financial statements of Excellent Corp. for the accounting period ended December 31, 2005, was completed by the management on March 15, 2006. The draft financial statements were considered at the meeting of the board of directors held on March 20, 2006, on which date the board approved them and authorized them for issuance. The annual general meeting (AGM) was held on April 10, 2006, after allowing for printing and the requisite notice period mandated by the corporate statute. At the AGM the shareholders approved the financial statements. The approved financial statements were filed by the corporation with the Company Law Board (the statutory body of the country that regulates corporations) on April 20, 2006.

Required

Given these facts, what is the “authorization date” in terms of IAS 10?