Robusta coffee prices on ICE Europe - London floor increased slightly at the end of the first trading session of the week, while Arabica coffee prices remained unchanged due to the closure of the New York market for Labor Day. Green coffee prices in the Central Highlands provinces of Vietnam also saw a slight increase. The market is currently concerned about the impact of the El Nino weather phenomenon on the flowering of the new coffee crop in Brazil, while Rabobank predicts a balanced supply and demand in the following crop year with reduced demand in consuming countries.