“Ranong Tea” originated from 1985, by Mrs. Sirilak Chaiwatanamethin, a certified traditional pharmacist from Ministiy of Public Health Traditional Medicine from Sukhothai Thammathirat Open University’s Faculty of Traditional Thai Medicine in 2007. Inspired by a keen interest in traditional Thai herbs and medicines, the well-known pharmacist introduced natural herbal tea of the “Thevi” brand to the public about 32 years ago. However, using herbs was not really popular at that time and only the elderly appeared to have had a sufficient interest in the product.

In 1999, Green Tea Ltd., Part. was established under the “Promoting Thai Herbs to the World” concept to elevate the value of traditional Thai herbs that could be mixed as healthy drinks as well as inheriting the wisdom of Thai ancestors for the future. Among the initially introduced products, “Mulberry Tea” was developed with a very unique formula to attract healthy people, ensuring that it could effectively reduce fat in blood vessels (cholesterol), minimize blood sugar levels (diabetes), and maintain healthy blood pressure. This health-focused phenomenon helped push forward the emergence of the “Ranong Tea” brand of mulberry tea.

Inspired by the success of the aforementioned concept, we are currently renowned for being Thailand’s first and largest manufacturer, distributor, and exporter of mulberry tea products. For the highest satisfaction of consumers, our quality product has been developed in three competitive forms, varying in tea leaf, tea powder, and tea sachets.

We are fully committed to advancing our production monitoring and quality control by strictly pursuing the Codex Alimentarius, a collection of internationally recognized standards, codes of practice, guidelines, and other recommendations relating to food, food production, and food safety, including GMP, HACCP, and BRC & HALAL. Our quality products are 100% supervised at every production process under a closed system, starting from obtaining the raw materials to them ending up as finished products.

We currently possess about 80% of sales in the country as our products are diversely distributed via strategic marketing channels, for instance, department stores, supermarkets, wholesale shops, and food restaurants. Another 20% of our distribution volume is maintained by exports under the “Ranong Tea” brand, available in Europe, the USA, Australia, and Asia.

Now Mr. Supachai Chaiwatanamethin as a CEO and second generation of business and Mrs. Supapron Chaiwatanamethin as a General Manager have run the business from Year 2003 until now.


We have transformed into Green Tea Co., Ltd. in 2015 to support the larger expansion of herbal beverage products that are currently available at around 11,200 shops in Thailand and over 25 countries around the world, covering consumers of all ages. Our best-selling products vary in mulberry tea, green tea, ginger juice, coffee drinks, instant beverages, and dietary supplements, which have gained huge popularity among health focused consumers. It is widely accepted that herbal products can genuinely be the best alternative for excellent health.


We aim to become the leader of herbal beverage products that greatly satisfy healthy people in the ASEAN Economic Community as well as in international markets around the world.


We are committed to permanently increasing our sales based on affordable selling prices.

We aim to develop a comprehensive range of high-quality products by relying on the application of modern technology to completely satisfy all our consumers, while remaining firm in pursuing an environmentally-friendly concept.

We have determined to build a strong brand image and generate competitive market expansion aiming to create greater brand recognition and customer loyalty towards our high-quality products.

We always encourage our employees to work with happiness to obtain desirable products and services, providing our strategic partners with the highest business advantages.

Certified Standards

“Ranong Tea offers the Best Natural Products Certified to
Internationally Accepted Standards.”
Ranong Tea has developed a set of production control policies certified to internationally accepted standards. We have been honored
with distinguished awards as follows: 

Prime Minister’s Export Award 2016

Best Exporter รางวัลผู้ประกอบธุรกิจส่งออกยอดเยี่ยม เป็นรางวัลที่มอบให้แก่ผู้ผลิต/ผู้ส่งออกสินค้าของไทยที่มีคุณภาพ มีการพัฒนาผลิตภัณฑ์และภาพลักษณ์ที่ดี จากกรมส่งเสริมการค้าระหว่างประเทศ กระทรวงพาณิชย์

Prime Minister’s Export Award 2015

Best Thai Brand รางวัลแบรนด์ไทยยอดเยี่ยม เป็นรางวัลที่มอบให้แก่ผู้ส่งออกไทยที่มีการส่งออกภายใต้ตรา สินค้าของตนเอง จากกรมส่งเสริมการค้าระหว่างประเทศ กระทรวงพาณิชย์

Prime Minister’s Export Award 2006

Best OTOP Export Recognition รางวัลสินค้าหนึ่งตำบล หนึ่งผลิตภัณฑ์ ที่มีการส่งออกและคุณภาพยอดเยี่ยม เป็นรางวัลที่มอบให้แก่สินค้าจากชุมชนที่มีความโดดเด่น มีคุณภาพที่ดี และพัฒนาสินค้าสู่ตลาดต่างประเทศ จากกรมส่งเสริมการค้าระหว่างประเทศ กระทรวงพาณิชย์

As Ranong Tea’s products are developed through a meticulous manufacturing process, they not only provide customers with immense satisfaction, but also guarantee value-added quality beyond expectation. We select the best medicinal herbs and naturally sourced ingredients to be processed through modern, hygienic, and safe manufacturing processes. We also recognize the importance of complying with an environmentally-friendly concept and ethical treatment of our workforce. Ranong Tea is currently certified to globally renowned standards, for instance, GMP, HACCP, BRC, USDA & EU Organic, and Halal, while also being guaranteed by having received honorable awards, including PM Award, Thailand Trust Mask, and Green Industry.