ROTTERDAM GRAIN HANDLER SAYS PORT BALANCE ROSE Graan Elevator Mij (GEM) said its balance in port of grains, oilseeds and derivatives rose to 70,000 tonnes on March 21 compared with 10,000 a week earlier after arrivals of 192,000 tonnes and discharges of 132,000 tonnes last week. The balance comprised 25,000 tonnes of grains plus oilseeds and 45,000 tonnes of derivatives. This week's estimated arrivals total 487,000 tonnes, of which 107,000 are grains/oilseeds and 380,000 derivatives. The figures cover around 95 pct of Rotterdam traffic in the products concerned.