News & Events · Green Business Matching · 4 Nov 2026
Oolongsen: an "oolong" tea with no tea leaves, made from Đồng Tháp lotus leaves fermented for 16 hours
Đồng Tháp is the land of the pink lotus, yet the lotus leaf has had almost no economic value. Nguyễn Hữu Anh and his wife Nguyễn Thị Hồng Ngọc saw something else: a leaf that is both a folk remedy and a cultural emblem of their home province. For their first attempt they bought 150 kg of lotus leaves, drove them up to Lâm Đồng and asked a tea workshop there to have a go.
GBM NetworkĂn Chay TV
AnchayTV · Official media partner of Green Business Matching Green business stories 5/35 from Green Business Matching Day Vietnam, 4 November 2026. Original on gbm.network ↗
Ecohome Đồng Tháp · Ecohome Investment, Trading, Construction, Services and Production JSC · Mỹ Xương, Cao Lãnh, Đồng Tháp
Nearly five years of research, with scientists from Ho Chi Minh City University of Technology taking part, produced a curious tea: fresh lotus leaves fermented for 14–16 hours, then rolled into pellets using Taiwanese technology, following the oolong process step by step, but without a single tea leaf. Oolongsen is the name of the process, not of a tea variety. The product reached the market in 2023.
A lotus value chain inside Mỹ Xương commune
The plant, in Mỹ Thới hamlet, Mỹ Xương commune, buys fresh lotus leaves directly from farmers and processes around 2,000 kg of fresh leaf a day into roughly 300 kg of finished tea, with ISO 22000:2018 and HACCP certification. From the Oolong Sen pellet, Ecohome has developed tea bags, herb-infused teas (tangerine peel, liquorice, jujube, chrysanthemum, goji), Hồng Diệp Liên tea aged inside fresh lotus blooms, and instant lotus-ginger and lotus-milk teas. Revenue rose from VND 28 million in 2023 to around VND 500 million in the first six months of 2024; more than half of customers come back, most of them hotels, conference organisers and government offices. Next to the plant is the Ecohome rest stop on National Highway 30, where travellers pull in for tea and clay-pot rice.
In 2024 Oolongsen won an Encouragement Prize at the 10th Green Startup Competition, made the Top 20 of the National Startup Project Development Programme and was named one of the province's five outstanding innovative startups; in 2025 five of the company's products were among the Top 20 outstanding OCOP products of Đồng Tháp. Their message is brief: "Vietnamese lotus tea – folk medicine. Health for everyone."
At Green Business Matching Day
The Oolongsen booth, with its pink and green lotus-print tea boxes and a glass teapot for tastings, drew a steady stream of international visitors, perhaps because the lotus is India's national flower too. Ecohome Đồng Tháp is one of the 21 sponsors of the programme on 04.11.2026.
At the recognition ceremony that closed the programme, Oolongsen was honoured by the organisers together with the other 20 sponsors, witnessed by Mr. Mohan Ramesh Anand (Founder & CEO, Canopus Group), Mr. Thao Le (Founder, AnChay.TV) and Mr. Nguyễn Tiến Tuyến (Founder & CEO, Chay Vietnam).
Green Business Matching Day Vietnam is co-organised by INCHAM with Canopus, AnChay.TV and Chay Vietnam, with the support of the Consulate General of India in Ho Chi Minh City, Ministry of External Affairs of India.
Based on material provided by the company; compiled by the organisers of Green Business Matching Day Vietnam as a gift to the businesses that joined the day.
