The tenders close on Tuesday, Dec. 15, traders said.
The grains can be sourced from optional origins.
If based on European Union or Black Sea region supplies, some 30,000 tonnes of corn was sought for shipment between March 25 to April 15, 2016, and 50,000 tonnes between April 25 to May 15, 2016, they said.
If based on European Union or Black Sea region supplies, all the sorghum was sought for shipment between March 1-20, 2016, they said.
Shipment periods of grains from other origins may differ, traders said.