His farm spreads over 20,000 m² in An Nhon Tay Commune. The mango trees are cultivated inside a fully enclosed greenhouse where drip irrigation delivers water and nutrients, while sensors constantly check pH and electrical conductivity (EC) to keep conditions optimal.

In Japan the Irwin mango is marketed as the Miyazaki red mango and can sell for $38 to $114 per fruit. In Vietnam, the 2026 harvest fetched $11 to $23 per mango.

The first Vietnamese harvest, taken in 2026, produced almost 400 fruits from roughly 1,400 trees. Nhan noted that the output was limited and the revenue “was insignificant compared with the total investment.”

To adapt the variety, Nhan tested six different Irwin lines and kept the two that performed best in local soil and climate. He also limits each tree to five‑seven mangoes and bags every fruit with netting to protect its skin and shape.

“One of the most important steps is synchronising water, nutrients and fruit load from flowering through ripening,” Nhan explained. “We control sun exposure and bag each mango to ensure colour and avoid sunburn.”

The project shows how precise greenhouse management, selective breeding and careful fruit handling can allow a high‑value, climate‑sensitive crop to grow outside its traditional region, even if large‑scale profit has yet to be demonstrated.