In short: Marumatsu Tea Co., Ltd. is a green tea producer in Shizuoka, Japan, operating at 30 metres elevation and certified by the Ethical Tea Partnership.
Marumatsu Tea Co., Ltd. is a green tea producer located in Shizuoka, Japan, operating at an altitude of 30 metres. The estate is both owned and operated by Marumatsu Tea Co., Ltd., and is certified by the Ethical Tea Partnership. Shizuoka prefecture remains Japan's largest tea-growing region, accounting for a significant share of the country's green tea output, and Marumatsu operates within this established production landscape.
Terroir & Climate
At 30 metres elevation, Marumatsu occupies low-lying terrain in Shizuoka prefecture, positioned along Japan's Pacific coast at a latitude of approximately 34.8° N. Estates at this altitude and proximity to the sea typically experience milder winter temperatures and earlier spring flush cycles than higher-elevation gardens inland. The maritime influence tends to moderate diurnal temperature variation, and the region generally receives ample rainfall distributed across the growing season, conditions that can support vigorous vegetative growth.
Shizuoka's low-elevation gardens often benefit from well-drained alluvial or volcanic soils, and the relatively warm, humid conditions tend to favour rapid leaf development. Producers at this elevation typically manage multiple harvests per year, with the first flush in late April or early May historically commanding premium prices. The temperate coastal climate generally allows for a longer growing window than Japan's more northerly or mountainous tea districts, though the specific soil composition and microclimate at any given site will shape leaf chemistry and processing outcomes.
Tea Produced
Marumatsu produces green tea, the dominant category in Shizuoka and across Japan's domestic market. Estates in this region and at this elevation typically yield teas with a balance of umami depth and refreshing astringency, though cup character varies widely depending on cultivar, shading practices, and processing technique. Steamed green teas (sencha and its variants) are the regional norm, and lower-elevation Shizuoka gardens often produce styles with bright vegetal notes, a smooth mouthfeel, and moderate body. The maritime climate and fertile soils can support leaf material suited to both everyday-grade sencha and, where cultivation is carefully managed, more refined fukamushi or lightly shaded kabusecha expressions.
Operator
Marumatsu Tea Co., Ltd. operates this estate directly. No other tea estates operated by the same company are currently recorded in our directory, indicating that Marumatsu functions as a single-estate enterprise or that any additional holdings have not been documented in the available trade data.
Certifications & Ethics
Marumatsu Tea Co., Ltd. is certified by the Ethical Tea Partnership, a membership organisation that works with tea producers and buyers to promote improved working conditions, environmental stewardship, and responsible supply-chain practices. ETP certification signals a commitment to ongoing monitoring and improvement across labour rights, health and safety, and environmental impact, offering buyers assurance that the estate participates in a recognised framework for ethical sourcing.
Location & Neighbouring Estates
Marumatsu Tea Co., Ltd. lies at 34.7634, 138.0687 in Shizuoka, Japan. Its 30 m elevation is the 5th highest of 11 estates we map in Japan. The nearest estates in the TeaTrade directory, measured point-to-point from these coordinates, are:
- Kobayashi Aracha Factory — under 1 km away · Kikugawa
- Sasaki Green Tea Company — 2.5 km away · 350 Kamiuchida Kakegawa City
- Aiya Co., Ltd. — 87 km away · Nisho
- Yame Tea Kumaen — 170 km away · Tokyo
- Shogyoken Seicha Co Ltd — 208 km away · 54 Kusauchi Miyanogo Kyotanabeshi
Observed Climate at Marumatsu Tea Co., Ltd. (2025)
ERA5 reanalysis data modelled for Marumatsu Tea Co., Ltd.’s coordinates recorded 1,920 mm of precipitation across calendar year 2025. The wettest month was May (358 mm) and the driest was February (27 mm). Daytime highs averaged 21.0 °C and overnight lows 12.5 °C over the year; August was the warmest month and February the coolest.
| Metric | 2025 value |
|---|---|
| Annual precipitation | 1,920 mm |
| Wettest month | May (358 mm) |
| Driest month | February (27 mm) |
| Mean daily high | 21.0 °C |
| Mean overnight low | 12.5 °C |
Frequently Asked Questions
Where is Marumatsu Tea Co., Ltd. located?
Marumatsu Tea Co., Ltd. is in Shizuoka, Japan, at coordinates 34.7634, 138.0687, at an elevation of about 30 metres.
Who operates Marumatsu Tea Co., Ltd.?
Marumatsu Tea Co., Ltd. is operated by Marumatsu Tea Co., Ltd., according to public supply-chain records.
What type of tea does Marumatsu Tea Co., Ltd. produce?
Marumatsu Tea Co., Ltd. is recorded as producing green tea.
What certifications does Marumatsu Tea Co., Ltd. hold?
Marumatsu Tea Co., Ltd. is recorded as holding the following certification(s): Ethical Tea Partnership.
How much rain does Marumatsu Tea Co., Ltd. receive?
ERA5 reanalysis data for the estate's coordinates recorded 1,920 mm of precipitation in 2025, peaking in May (358 mm).
Data sources: public supply-chain disclosures (Ethical Tea Partnership member lists, Rainforest Alliance certificate holders and retailer supplier disclosures); climate figures are ERA5 reanalysis modelled for the estate’s coordinates via Open-Meteo (calendar year 2025); coordinates and elevations from geocoded records. Spotted an error? Email [email protected].
