Government today said it is working on a long-term sugar export policy to boost its exports not only to China and Africa but other countries as well.Food and Consumer Affairs Secretary Vrinda Sarup said while addressing a function in New Delhi. She said, the department is already engaged in an exercise to evolve a systematic sugar export policy in view of consistently rising domestic output, which is estimated to be in surplus by 10 million tonnes this year.Sugar production is estimated at record 28.3 million tonnes in 2014-15 marketing year against 24.3 million tonnes in the previous year. However, the total annual demand of sugar is pegged at 24.5 million tonnes.