The government says the move will help boost sales of locally produced rice as demand continues to rise.
Fast growth in grain output has outpaced storage, raising costs and forcing early sales.
The two industry groups aim to grow trade links, improve technology access, and support food production systems across key markets.
The government has started an investigation as rising imports strain domestic rice production ahead of the planting season.
South Africa’s canola sector continues to grow, with farmers planning to expand plantings and push output to a new high.