Southeast Asia's most celebrated wine region, located in the highlands of Nakhon Ratchasima province at 300–400 meters elevation, 150km north of Bangkok. Khao Yai benefits from a 'new latitude' wine climate where a distinct cool dry season (November–February) allows grapes to ripen without tropical disease pressure. Chenin Blanc, Shiraz, Syrah, and Verdelho have proven exceptional in this tropical highland environment, with GranMonte and Monsoon Valley achieving international distribution.
| Year | Rating | Notes |
|---|---|---|
| 2023 | — | Consistent tropical highland quality with good aromatic freshness in whites. |
| 2022 | — | Best vintage to date; GranMonte exported to UK, USA, and Japanese markets. |
| 2021 | — | Outstanding cool season; international press coverage of Asian wine reached new heights. |
| 2020 | — | Reliable dry season; domestic market strengthened with growing Thai wine culture. |
| 2019 | — | Strong vintage; GranMonte won gold at Decanter Asia Wine Awards. |
| 2018 | — | Typical tropical highland conditions; dry season ensured good quality. |
| 2017 | — | Excellent cool season; Chenin Blanc showed outstanding aromatic freshness. |
| 2016 | — | Pioneer vintage for quality Thai wine; GranMonte earning first international recognition. |