China Southern Power Grid Company Limited closed its 2013 Phase III Super Commercial Papers offering on April 19th, 2013. The SCPs started trading in the market on April 22nd. Being the first tranche with a registered size of RMB50 billion, the 180-day SCPs were offered at a coupon rate of 3.60% and a total size of RMB5 billion.. CICC acted as Joint Lead Manager in this offering of the AAA-rated China Southern Power Grid.