Dragon fruit in Chau Thanh District.

HA NOI (Biz Hub) — The United States Patent and Trademark Office has granted patents to two special products of the southern Long An Province.

Director of the provincial Department of Science and Information Technology Mai Van Nhieu said the products are the Nang Thom Cho Dao rice, one of Viet Nam's most famous traditional rice varieties, and the Chau Thanh–Long An dragon fruit.

The patents will be effective for ten years.

Nang Thom Cho Dao rice in the southern Long An Province's Can Duoc District. — Photos pidivn.com

The Nàng Thơm Chợ Đào rice is difficult to grow and can be grown only in the My Le Commune in the Can Duoc District. People see this rice as a "fragrant girl" and call it Nang Thom. Furthermore, it is bought and sold mainly in Dao market - Cho Dao.

The dragon fruit is grown on nearly 2,200 hectares in the Chau Thanh District, which supplies more than 30,000 tonnes of the fruit per year. The province follows VietGap and GlobalGap standards in an effort to stabilise cultivation and ensure export-quality produce. — VNS