In April 2010, SolarWorld AG has taken an interest of 29 per cent in the newly founded joint venture Qatar Solar Technologies Q.S.C. domiciled in the emirate Katar. On the Arabian peninsula, the joint venture will build production facilities for polysilicon with a planned capacity of 3,600 tons p.a.

In the beginning of May 2010, the German Bundestag has made a final decision regarding the Renewable Energy Sources Act. Consequently, as of July 1, 2010, the remuneration for roof-top installations will decrease once by 16 per cent, the one for free-field installations by 15 per cent and the one for conversion-area installations by 11 per cent. From July 1, 2010 on, solar energy systems to be built on agricultural crop land will not receive any remuneration any more. For installations, for which an ordinance resolution according to building law has been made until March 25, 2010, a transition period applies until December 31, 2010. As of January 1, 2011 the respective remuneration will further decrease by 9 per cent. In case that certain growth corridors (3,500 MW, 4,500 MW, 5,500 MW and 6,500 MW) will be overstepped, the remuneration is supposed to decrease further by one percentage point in each case.

Apart from that, after March 31, 2010 there were no events of particular importance.