March 31 (Reuters) - Silver Wheaton Corp SLW.TO :
* Silver Wheaton provides details of annual and special meeting of shareholders, files form 40-f, and provides general corporate update
* Silver Wheaton - Alexco resources agreed to amend Alexco silver purchase agreement to adjust silver production payment from us$3.90 per ounce of silver
* Silver Wheaton - co, units provided guarantee to lenders under Primero Mining Corp's existing revolving credit facility capped at maximum of $81.5 million Source text for Eikon: ID:nCNWlclpLa Further company coverage: SLW.TO