Wal-Mart de Mexico SA has reported that second-quarter profit fell 3.4% as the chain increased spending to open new stores and integrate Central American operations.

The Mexican unit of Wal-Mart Stores reported a net income of 4.49 billion pesos ($380 million) in the April-June period, down from 4.65 billion pesos during the same three months of 2010. Revenue rose 9% to 88.37 billion pesos ($7.49 billion).