What is the ruling on subscribing to Al-Noor stock, and is investing in it through usurious interest?

"Nur's Share" (Sahm al-Nur) is a charitable endowment project dedicated to disseminating the Holy Quran with its various recitations and translations. The value of one share is $120, 75% of which is invested. The project organizers have affirmed that the investment of funds is Sharia (definition)-compliant, based on the following: a large number of scholars, jurists, and opinion leaders in the founding council; members specialized in Islamic economics; Sharia supervisory committees within the investing entities; the establishment of Sharia-compliant investment controls; and dealing with associations and organizations that have Sharia supervisory committees. Those who trust the organizers may contribute, or one can purchase Qurans and distribute them personally or through trusted organizations, as this constitutes ongoing charity (Sadaqah (definition) Jariyah) and beneficial knowledge, in accordance with the saying of the Prophet, peace and blessings be upon him: "Indeed, among the good deeds and merits that will reach a believer after his death are: knowledge he taught and spread, a righteous child he left behind, and a Mushaf (definition) (copy of the Quran) he bequeathed..."