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  1. Home
  2. Building materials, supplies and fixtures manufacturers
  3. ロンタイ
Building materials, supplies and fixtures manufacturers
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ロンタイ

Establishment1957 year
capital6300Ten thousand
number of employees130
addressOsaka/Moriguchi-shi/3-1-11 Kameda-cho
phone06-6902-9401
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last updated:Sep 22, 2025
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  • Company information
  • Products/Services(93)
  • catalog(162)
  • news(8)

ロンタイ Company Profile

For 60 years with the greenery of this country, we will connect the green landscapes to the future.

Gentle green spreads across the slopes of the road, blending into the landscape. This green may be what is called "slope greening," which is planned and planted during road construction. Our work in slope greening aims to prevent slope collapse, protect people's lives and communities, and restore damaged ecosystems. With the belief of "green that protects people," Rontai is committed to greening efforts.

Business Activities

Manufacturing and sales of civil engineering greening materials and greening construction.

Recommended information

Large sandbags with vegetation functions "Green Scram"

Large sandbags with vegetation functions "Green Scram"

Large sandbags with vegetation functions! Contributing not only to disaster prevention and reduction but also to environmental conservation! *We are currently seeking construction case studies.*

The large sandbag "Green Scram" is a product that adds vegetation functionality to the "sandbags" used in disaster recovery and temporary construction. The vegetation function helps to suppress the degradation of the product, while also demonstrating the excellent workability unique to large sandbags. 【Features】 ■ Suppresses product degradation with vegetation functionality ■ Promotes greening with a flexible, larger mesh size ■ Structure prevents the inner soil from spilling out ■ Available for purchase from a single unit, allowing for purchases tailored to the scale of the site Please avoid using sand, gravel, rocky soil, concrete debris, mortar waste, etc., for filling. *For more details, please refer to the catalog. Feel free to contact us with any inquiries.

Products/Services (93)

[Helpful Materials] We will assist with the quantity calculation and stability calculation of vegetation soil bags! product image
[Helpful Materials] We will assist with the quantity calculation and stability calculation of vegetation soil bags!
Landslide Prevention Greening Method "Long Strong Net Method" to be released in January 2025. product image
Landslide Prevention Greening Method "Long Strong Net Method" to be released in January 2025.
Useful Construction Case Studies: Slope Greening Examples in Disaster Recovery Projects product image
Useful Construction Case Studies: Slope Greening Examples in Disaster Recovery Projects
[Information] Introducing greening products that are useful for solar power plant construction! product image
[Information] Introducing greening products that are useful for solar power plant construction!

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catalog(162)

Survey responses are required to view e-book details. Click to view the e-book.

[Helpful Materials] We will assist with the quantity calculation and stability calculation of vegetation soil bags!

[Helpful Materials] We will assist with the quantity calculation and stability calculation of vegetation soil bags!

TECHNICAL
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Introduction to the Benefits of the Landslide Prevention Greening Method "Long Strong Net"

Introduction to the Benefits of the Landslide Prevention Greening Method "Long Strong Net"

DOCUMENT
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Landslide Prevention Greening Method "Long Strong Net" Catalog

Landslide Prevention Greening Method "Long Strong Net" Catalog

PRODUCT
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Technical Data: Comprehensive Explanation of Slope Greening Plants Vol-1

Technical Data: Comprehensive Explanation of Slope Greening Plants Vol-1

TECHNICAL
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news(8)

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We will exhibit at the Advanced Construction, Disaster Prevention, and Mitigation Technology Fair in Kumamoto 2024!

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Rontai will exhibit at the "Advanced Construction, Disaster Prevention, and Mitigation Technology Fair in Kumamoto 2024," which will be held at Gran Messe Kumamoto from November 20 (Wednesday) to November 21 (Thursday), 2024. The Advanced Construction, Disaster Prevention, and Mitigation Technology Fair in Kumamoto 2024 is an industrial exhibition aimed at realizing a rich and safe social infrastructure, building disaster prevention, mitigation, and BCP in a wide range of industrial cultures, and promoting wide-area cooperation during disasters. During the two days of the fair, we will showcase a booth centered on domestic seeds (from Aso) that correspond to regional seed varieties. Our employees will be stationed at the booth throughout the event, so please feel free to ask any questions. We look forward to meeting many people. 【Advanced Construction, Disaster Prevention, and Mitigation Technology Fair in Kumamoto 2024】 Date: November 20, 2024 (Wednesday) 10:00 AM - 5:00 PM November 21, 2024 (Thursday) 10:00 AM - 4:00 PM Location: Gran Messe Kumamoto Address: 1010 Fukutomi, Mashiki Town, Kamimashiki District, Kumamoto Prefecture Booth: C11 URL: https://www.s-kumamoto.jp/

Nov 18, 2024

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Announcement of the page update for the large vegetation sandbag "Green Scram."

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The page for the large vegetation sandbag "Green Scram" has been uploaded. This product stabilizes slopes when used as a retaining wall and prevents soil runoff. Please consider it for localized heavy rain, landslides, riverbank erosion, typhoon preparedness, and post-disaster recovery. For more details, please refer to the related products and catalogs below.

Jul 13, 2022

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[Construction Achievements] Embankment Improvement and Other Works in the Upper Abukuma River, Fukushima Area (Fukushima Prefecture)

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Rontai Co., Ltd. has a wealth of experience in slope greening throughout Japan. At the request of the Ministry of Land, Infrastructure, Transport and Tourism, "Ronkette de Agreen" was applied in the construction of levee improvement works in the upper Abukuma River area of Fukushima. The construction area was 3,600 m², and the seed mixture included non-native species (short grass). Details of the construction case can be viewed through the related links.

Jun 22, 2022

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Detailed information

Company name ロンタイ
number of employees130
Contact addresspostalcode 570-0011 Osaka/ Moriguchi-shi/ 3-1-11 Kameda-choView on map TEL:06-6902-9401 FAX:06-6905-9070
Key Partners◆Ministry of Land, Infrastructure, Transport and Tourism ◆Ministry of Agriculture, Forestry and Fisheries ◆Each expressway ◆Local governments, etc. (via agents)
<Affiliated Companies> ◆ Talox Co., Ltd. ◆ Iris Co., Ltd. ◆ Dalian Longtai Landscaping Engineering Co., Ltd.
Business LocationsClick here for the list
Industry Building materials, supplies and fixtures manufacturers
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