The market changes very fast, we need to wait and see how the military administration handles the rice sales."
Mr Charoen said the Philippines is also due to call a bid to buy a new lot of 500,000 tonnes of 25% white rice on Aug 27, while Malaysia wants to buy an additional 200,000 tonnes of rice and Indonesia needs at least 200,000 tonnes.
The junta last month vowed to sell an average of 500,000 tonnes a month from existing state stocks and dispose of the existing 18-million-tonne surplus within three years through four channels.
Those channels are general auctions, government-to-government sales, direct sales and via the Agricultural Futures Exchange of Thailand.