Longan is a specialty fruit of Vietnam, the North has "Long" longan, the South has '"Tieu Da Bo" long an, "Xuong" longan, Edor longan, etc. With a favorable climate, Cho Lach Hamlet, Ben Tre is the land for growing and exporting longan. Exploiting this advantage, Chanh Thu exported longan to the US market in 2015. Receiving positive feedback from consumers, Chanh Thu has continuously increased its export output. Currently, to ensure the quantity and quality of longan fruit supplied, Chanh Thu has linked with 01 growing area meeting GlobalGAP, 03 growing areas meeting VietGAP, and 06 growing areas receiving the US Code.

Longan is a fruit that can be eaten fresh or dried, when ripe, it has a yellow color of each variety of longan. Thick and succulent longan flesh brings a strong sweetness to the tip of the tongue of the customer. Longan fruit is delicious and nutritious. According to the book recorded by Hai Thuong Lan Ong, longan is a highly valued medicine. He said that this is a medicine that drinks a lot, has a strong will, smart; Use it for a long time, it's light, and it's young for a long time. Fresh Longan pulp has 77.15% water, 0.01% ash, 0.13% fat, 1.47% protein, 20.55% water-soluble nitrogen compounds, 12.25% sucrose, vitamins A and B. Dried pulp (longan humiliation) contains 0.85% water, water-soluble 79.77%, water-insoluble 19.39%, ash 3.36%. In the water-soluble part, there is glucose at 26.91%, sucrose at 0.22%, and taetric acid at 1.26%. A substance with nitrogen is 6.309%. Longan seeds contain starch, saponins, fats, and tannins.

Due to the lack of such nutrients, the fruit also cures many diseases:

• Stomach pain: Longan juice is known for its use in treating and preventing stomach pain, and memory loss. You can drink the juice directly from the fresh longan or soak the longan pulp in sugar water for a few weeks to get the juice and mix it with filtered water.
• Improve blood circulation: Longan enhances the absorption of iron in the body, helps limit anemia, and creates a pleasant feeling for the nervous system near the spleen and heart. In addition, longan also works to protect the body from the risk of diseases in the pancreas and is good for the female reproductive organs.
• Strengthens bones and joints: a 2013 study found that postmenopausal women with low levels of minerals like copper are more susceptible to osteoporosis in old age. It is recommended that adults consume 900 mg of copper per day. 100 g of fresh longan will provide 19%, while 100 g of dried longan contains up to 807 mg of copper, providing 90% of the amount of copper an adult should take in each day.Strengthens bones and joints: a 2013 study found that postmenopausal women with low levels of minerals like copper are more susceptible to osteoporosis in old age. It is recommended that adults consume 900 mg of copper per day. 100 g of fresh longan will provide 19%, while 100 g of dried longan contains up to 807 mg of copper, providing 90% of the amount of copper an adult should take in each day.
• Prevent eye problems: Riboflavin is an important vitamin in the B vitamins. Men need 1.3 mg of riboflavin per day, and women need 1.1 mg. According to a 2005 study, inadequate intake of riboflavin can increase the risk of eye disorders, especially cataracts. 100 g of fresh longan provides 0.14 mg of riboflavin, while 100 g of dried longan provides 0.5 mg. Prevent eye problems: Riboflavin is an important vitamin in the B vitamins. Men need 1.3 mg of riboflavin per day, and women need 1.1 mg. According to a 2005 study, inadequate intake of riboflavin can increase the risk of eye disorders, especially cataracts. 100 g of fresh longan provides 0.14 mg of riboflavin, while 100 g of dried longan provides 0.5 mg.